Academic literature on the topic 'Refluxed'
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Journal articles on the topic "Refluxed"
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Tran, Duyen Thi Xuan, and Nhu Thi So Le. "PHOTOCATALYTIC ACTIVITIES OF NITROGEN-DOPED TIO2 SYNTHESIZED BY REFLUX METHOD." Science and Technology Development Journal 15, no. 3 (2012): 56–64. http://dx.doi.org/10.32508/stdj.v15i3.1817.
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N-doped TiO2 powder was prepared by hydrolyzing titanium precursor combined with refluxing at the temperature around 1000C. Effects of N doping, refluxing time, and the presence of H2O2 in the refluxed solution on the formation of TiO2 and their photocatalytic activities were investigated. The samples were characterized by XRD, FE-SEM, DRS, FTIR, BET, and EDS. Their photocatalytic activities were characterized by photodegradation of methylene blue under UV and VIS radiation. Results showed that the N-doped TiO2 samples presented higher photocatalytic activities than undoped sample. The N-doped TiO2 refluxed in H2O2 solution performed porous samples with mixture of anatase and rutil, leading to higher surface area and higher photocatalytic activities than those refluxed in water. Increasing the reflux time from 2 hours to 10 hours improved the crystallinity of samples, but insignificantly affected phase composition as well as photocatalytic activities of N-doped TiO2.
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Norazlina, M. Y., S. Azizah, Mohd Fairuz Dimin, Y. Faridah, and Omar Rostam. "The Influence of Nitric Acid Treatment on the Crystallographic Structure of Multiwalled Carbon Nanotubes." Applied Mechanics and Materials 761 (May 2015): 369–73. http://dx.doi.org/10.4028/www.scientific.net/amm.761.369.
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Commercially available Multiwalled Carbon Nanotubes (MWCNTs) were refluxed with nitric acid in order to improve the density of the acidic surface functional groups. The formation of oxygen containing functional groups may lead to surface enhancement of MWCNTs for further modifications. The crude MWCNTs were refluxed in nitric acid at 100 °C for time ranging between 3 to 24 h. The influence of treatment time on crystalline structure was investigated using X-Ray Diffraction (XRD); the results confirmed that all treated MWCNTs are crystalline. The density of the surface functional groups on treated MWCNTs was examined by Fourier Transform Infrared (FTIR). The FTIR spectrums revealed a strong vibration band at 1739, 1219, 1369 cm-1that indicates covalently bound acidic surface functional groups existed on the treated MWCNTs. The amount of acidic groups increased with the reflux time up to 15 h treatment as measured by an acid-base Boehm titration. The vibrational spectroscopy of these functional groups also increased with the increasing reflux time.
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Gungor, Dilara, Şükrü Oğuz, and Hasan Dinc. "Mechanical removal of a refluxed Onyx piece from the middle cerebral artery using the Solitaire Stent: Technical report." Interventional Neuroradiology 23, no. 3 (2017): 293–96. http://dx.doi.org/10.1177/1591019917694022.
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Onyx reflux into the parent artery is a rare and sometimes significant complication in the treatment of cerebral arteriovenous malformations (AVMs). We report a patient who presented with Onyx reflux into the M1 segment of the middle cerebral artery (MCA) during embolization of a right temporal AVM. The refluxed Onyx cast was successfully removed by a mechanical thrombectomy device using a self-expandable and fully retrievable Solitaire AB stent.
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Tawachkultanadilok, Pimrapus, Nattawut Osakoo, Chalermpan Keawkumay, et al. "Synthesis and Characterization of Zeolite NaY Dispersed on Bamboo Wood." Materials 16, no. 14 (2023): 4946. http://dx.doi.org/10.3390/ma16144946.
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Zeolites in powder form have the potential to agglomerate, lowering access to active sites. Furthermore, a suspension of fine zeolite powder in liquid media is difficult to separate. Such drawbacks could be improved by dispersing zeolite crystals on support materials. This work demonstrates the dispersion of zeolite NaY crystals on bamboo wood by mixing the wood with zeolite gel before hydrothermal treatment. The syntheses were performed with acid-refluxed and non–refluxed wood. The phase of zeolites, particle distribution and morphology, zeolite content in the wood, and zeolite–wood interaction were investigated using X-ray diffraction, X-ray tomography, scanning electron microscopy, thermogravimetric analysis, nitrogen sorption analysis, and X-ray photoelectron spectroscopy. Higher zeolite content and better particle dispersion were obtained in the synthesis with the acid–refluxed wood. The composite of NaY on the acid-refluxed wood was demonstrated to be an effective adsorbent for Ni(II) ions in aqueous solutions, providing a higher adsorbed amount of Ni(II) per weight of NaY.
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Flouraki, Eugenia S., Ioannis Savvas, George Kazakos, Tilemahos Anagnostou, and Dimitrios Raptopoulos. "The Effect of Premedication on the Incidence of Gastroesophageal Reflux in 270 Dogs Undergoing General Anesthesia." Animals 12, no. 19 (2022): 2667. http://dx.doi.org/10.3390/ani12192667.
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The aim of this prospective, non-randomized study was to evaluate the effect of nine different premedication medications on the incidence of gastroesophageal reflux (GOR) in anesthetized dogs. Two hundred and seventy dogs undergoing non-intrathoracic, non-intrabdominal elective surgeries or invasive diagnostic procedures were included in the study, and were allocated into nine groups (30 dogs/group) defined by the type of premedication administered. Premedication consisted of dexmedetomidine with either morphine, pethidine or butorphanol, acepromazine with either one of the three opioids or midazolam with one of the above-mentioned opioids. Anesthesia was induced with propofol and maintained with isoflurane in oxygen. Esophageal pH was measured with the use of a pH-meter electrode and a pH-value less than 4 and over 7.5 was considered to be GOR. The study revealed that 119/270 (44.1%) dogs experienced a reflux episode during anesthesia. The incidence of reflux did not differ among groups (p = 0.117). In group AB the dogs refluxed within 10 min of the beginning of pH-measurements, in comparison with group DB in which dogs refluxed within 30 min (p = 0.029). Invasive diagnostic procedures had a lower incidence of GOR in comparison to castrations (p = 0.09). The outcome of the study suggests that none of the opioids used increased the incidence of GOR in anesthetized dogs.
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Sangchay, Weerachai, Pichet Chantawee, and Weerachai Madtharak. "Phase Transformations and Photocatalytic Activity of TiO2 Powders Preparation via Microwave-Assisted Sol-Gel Method." Advanced Materials Research 717 (July 2013): 79–83. http://dx.doi.org/10.4028/www.scientific.net/amr.717.79.
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The purpose of this research was to study phase transformation and photocatalytic properties of TiO2powders. TiO2powders were prepared by microwave-assisted sol-gel method. The prepared powders were refluxed at 18 W to 450 W for 1 h and dried at 180 W for 1 h by a conventional microwave oven. The phase transformations of powders were characterized by XRD and photocatalytic activities of powders were evaluated by UV-Vis spectrophotometer. The results show all samples reveal that only the anatase phase and has the crystallite size is 13.8, 10.3 and 9.2 nm when the refluxed at 180, 300 and 450 W. It was found that TiO2powders refluxed at 450 W were found to give the highest photocatalytic efficiency is about 90.06% under UV irradiation for 6 h.
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Shaker, Reza, Mary Milbrath, Junlong Ren, et al. "Esophagopharyngeal distribution of refluxed gastric acid in patients with reflux laryngitis." Gastroenterology 109, no. 5 (1995): 1575–82. http://dx.doi.org/10.1016/0016-5085(95)90646-0.
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Altman, Kenneth W., and James A. Radosevich. "Unexpected consequences of proton pump inhibitor use." Otolaryngology–Head and Neck Surgery 141, no. 5 (2009): 564–66. http://dx.doi.org/10.1016/j.otohns.2009.08.027.
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Proton pump inhibitors (PPIs) are among the most widely prescribed classes of medications for gastroesophageal and laryngopharyngeal reflux diseases. There is emerging evidence that the pathogenesis of disease in laryngeal mucosa is not just related to refluxed acid, but also the presence of pepsin and acidic microenvironments. The widespread use of PPIs is also calling into question potential complications of PPI use. This commentary expands upon these issues with other potential unexpected consequences, and considers the importance of determining a proper approach to patient management.
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Mortady Hamed, Manal, Laila Abdel-ghany Refahy, and Mohamed Sayed Abdel-aziz. "ASSESSING THE BIOACTIVITY AND ANTIOXIDATIVE PROPERTIES OF SOME COMPOUNDS ISOLATED FROM ABUTILON HIRTUM (LAM.)." Asian Journal of Pharmaceutical and Clinical Research 10, no. 3 (2017): 333. http://dx.doi.org/10.22159/ajpcr.2017.v10i3.16229.
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ABSTRACTObjectives: The present study on the methanol extract of Abutilon hirtum (Lam.) [Malvaceae] afforded ten compounds. Findings from this assessmentindicated that A. hirtum leaves possessed vast potential as medicinal product especially in liver cancer treatment.Methods: Dried-powdered leaves were boiled under reflux in 10 L of petroleum ether for 8 hrs. After filtration, the solvent was evaporated; afforded15 g of petroleum ether extract followed by boiling with reflux for 8 hrs with chloroform, then filtration and the residue was evaporated to give 34 gchloroform extract. Ethyl acetate was added and refluxed for 8 hrs, then filtration and evaporation to give 31 g ethyl acetate extract. Finally the leaveswere refluxed with 10 L of 85 % aqueous MeOH, after cooling, the solution was filtered and evaporated and the residue was 210 g methanol extractthen the residue was dissolved in de-ionized water (250 ml), then the salt was removed by adding excess methanol solution (2.5 L), and finally filtered.The cytotoxicity of the isolated compounds was evaluated towards HepG2 liver-carcinoma cell line using MTT assay, the antimicrobial activity wastested using the Disc agar plate method and the total antioxidant capacity was determined according to phosphomolybdenum method.Results: The isolated compounds identified as methyl gallate, cuneataside E, bergapten, gallic acid, ellagic acid, epigallocatechin-3-O-gallate,kaempferol-3-O-α-L-rhamnoside, benzyl-1-O-β-D-glucopyranoside, 2(4-hydroxyphenyl)ethyl-O-β-D-glucopyranoside and β-sitosterol. All the isolatedcompounds are known; but they were isolated from Abutilon hirtum for the first time.Conclusion: This report may serve as a footprint concerning the biological and pharmacological activities of A. hirtum leaves.Keywords: Abutilon hirtum, Malvaceae, HepG2, Phenolics, Antioxidant.
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Reichel, O., and W. J. Issing. "Impact of different pH thresholds for 24-hour dual probe pH monitoring in patients with suspected laryngopharyngeal reflux." Journal of Laryngology & Otology 122, no. 5 (2007): 485–89. http://dx.doi.org/10.1017/s0022215107008390.
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AbstractObjectives:The gold standard test for laryngopharyngeal reflux is 24-hour pH monitoring, which determines the reflux area index with a pH threshold of less than four (i.e. the reflux area index four). However, refluxed pepsin is able to cause laryngeal injury at pH levels above five.Study design:Prospective study.Materials and methods:In order to establish normative values for a reflux area index with a pH threshold of less than five (i.e. the reflux area index five), 29 healthy volunteers underwent pH monitoring. In 45 patients with suspected laryngopharyngeal reflux, reflux area index four and reflux area index five were determined by pH study.Results:In healthy volunteers, the reflux area index five was 72.6 (95th percentile). In 29 of 44 patients, laryngopharyngeal reflux was diagnosed due to a reflux area index four of greater than 6.3. However, the reflux area index five revealed laryngopharyngeal reflux in six more patients.Conclusions:For exact analysis of pH monitoring results, two pH thresholds (less than four and less than five) must be considered. Further studies with a larger number of healthy volunteers are necessary in order to reveal normative values for the reflux area index five parameter.
Dissertations / Theses on the topic "Refluxed"
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Andrade, Júlia Barone de. "Efeito do refluxo duodenogástrico no esmalte dental." Universidade de São Paulo, 2015. http://www.teses.usp.br/teses/disponiveis/58/58133/tde-14052015-090110/.
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O objetivo do presente estudo foi avaliar os efeitos do líquido de origem estomacal e duodenal na superfície do esmalte dental, simulando a ação do líquido refluído em pacientes com refluxo duodenogástrico. Foram selecionados 40 incisivos bovinos e obtidos fragmentos de esmalte medindo 4x4x2mm, e após o polimento, foram selecionados 40 espécimes através do teste de microdureza. Os espécimes foram isolados com resina composta deixando apenas metade da superfície do esmalte exposta aos desafios erosivos, foram então divididos aleatoriamente em quatro grupos (n=10), G1: HCl (pH 2.0), G2: HCl + Pepsina (pH = 2.1), G3: HCl + Bile de boi + NaHCO3 (pH 3.0), G4: HCl + Pancreatina + NaHCO3 (pH 3.0). Os fragmentos foram expostos em soluções a 37ºC, seis vezes por dia, durante 20 segundos sob agitação por cinco dias, posteriormente foram analisados por meio da avaliação morfológica, da rugosidade superficial e do desgaste (degrau) do esmalte dental com microscopia confocal a laser, em seguida os espécimes foram cortados longitudinalmente, planificados e polidos para a realização da microdureza longitudinal, onde foram realizadas 15 medidas em cada área (controle/protegida e exposta). Os dados foram analisados por meio do teste Kruskal-Wallis e de Dunn´s (p<0.05) para diferenciação das médias. Na análise dos dados mostrou maior degrau e rugosidade da superfície para o G3 (5.59 ± 1.69; 2.2 ± 1.61) e foi diferente estatisticamente significante com os grupos 1 e 2 nas duas análises (3.9 ± 1.55; 1.02 ± 0.18; 3.67 ± 1.45; 0.89 ± 0.12) (p<0.05), apenas o degrau do G4 (4.9, ± 1.8) foi semelhante ao G3 (p>0.05). Na análise da microdureza não foi observada diferença estatisticamente significante entre os grupos. Na análise morfológica observou-se maior perda estrutural nos grupos 3 e 4 com erosão intensa da região interprismática com áreas amorfas. Pode-se concluir que a bile e a pancreatina, de origem duodenal, em associação com o ácido clorídrico, podem promover uma erosão dentária mais intensa, com maior perda estrutural, aumento da rugosidade da superficial e perda da anatomia prismática do esmalte.<br>The goal of this study was to evaluate the effects of stomach and duodenal fluid on the enamel surface, simulating the action of refluxed liquid in patients with duodenogastric reflux. Forty bovine incisors were selected in order to obtain enamel fragments measuring 4x4x2mm each, which were then polished and brought to a microhardness test, where 40 final specimens were selected. The specimens were isolated with composite exposing only half of the enamel surface to erosive challenges and then randomly divided into 4 groups (n = 10), G1: HCl (pH 2.0); G2: HCl + pepsin (pH 2.1); G3: HCl + Ox Bile + NaHCO3 (pH 3.0); G4: HCl + Pancreatin + NaHCO3 (pH 3.0). The samples were exposed in 37°C solutions, 6 times a day, for 20 seconds, under stirring for 5 days. Subsequently, they were analyzed for morphologic evaluation, surface roughness and the step formed on the dental enamel, with confocal laser microscopy. The specimens were then cut longitudinally, their surfaces flattened and polished for holding the longitudinal microhardness, where 15 measurements were performed in each of the areas (control/protected and exposed). The data were analyzed using the Kruskal-Wallis test and Dunn\'s (p<0.05) means for differentiating. Both analysis showed a higher step and surface roughness for the G3 (5.59 ± 1.69, 2.2 ± 1.61), a difference that was statistically significant within groups 1 and 2 (3.9 ± 1, 55, 1.02 ± 0.18, 3.67 ± 1.45, 0.89 ± 0.12) (p <0.05) and only the step in G4 (4.9, ± 1.8) was similar to G3 (P> 0.05). The analysis of microhardness showed no statistically significant difference between groups. Morphological analysis showed greater structural loss in groups 3 and 4 with intense erosion of interprismatic region with amorphous areas. Therefore, it can be concluded that bile and pancreatin, from duodeno, in combination with hydrochloric acid, may promote greater dental erosion, with greater loss of structure, increased surface roughness and loss of enamel prismatic anatomy.
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Oliveira, Andrea Dean de. "Parametros da monitorização do pH intra-esofagico em diferentes apresentações clinicas da doença de refluxo gastroesofagico." [s.n.], 2006. http://repositorio.unicamp.br/jspui/handle/REPOSIP/309092.
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Orientador: Elizete Aparecida Lomazi da Costa Pinto<br>Dissertação (mestrado) - Universidade Estadual de Campinas, Faculdade de Ciencias Medicas<br>Made available in DSpace on 2018-08-07T00:13:55Z (GMT). No. of bitstreams: 1
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Previous issue date: 2006<br>Resumo: Na faixa etária pediátrica, a apresentação clínica da doença do refluxo gastroesofãgico é bastante inespecífica, dificultando o diagnóstico clínico da doença. A monitorização prolongada do pH intra-esofágico determina a freqüência e duração dos episódios de refluxo ácido para o esôfago, mas, em crianças acima de 2 anos, a relação entre os valores do índice de refluxo e as diferentes apresentações clinicas da doença de refluxo gastroesofãgico tem sido pouco avaliada. O presente estudo pretendeu identificar os resultados dos estudos prolongados do pH intra-esofágico e associá-los ao quadro clinico dos pacientes. A apresentação clínica foi dividida em quatro grupos, de acordo com a sintomatologia predominante: regurgitador, digestivo, respiratório e portadores de paralisia cerebral. A pesquisa desenvolveu-se por meio de estudo transversal, retrospectivo e analítico, através do levantamento dos resultados de monitorizações prolongadas do pH intra-esofágico realizadas no Hospital de Clínicas da Unicamp, no período de janeiro de 1999 a dezembro de 2004. Análises descritivas e de associação foram realizadas, foi utilizado o teste Qui Quadrado de Pearson ou Exato de Fisher. Os dados clínicos de 131 pacientes (1 a 20,6 anos) e seus respectivos exames foram revisados. Os motivos que mais freqüentemente determinaram a investigação laboratorial foram: vômitos, anemia, baixo ganho ponderal e pneumonias de repetição. Encontrou-se que 89 (67,9%) dos pacientes tinham um estudo de pHmetria anormal, mas no grupo regurgitador, o exame foi alterado em apenas 4 de 18 pacientes. Nenhuma das queixas clínicas esteve associada a valores de índice de refluxo > 4. Não houve associação significativa entre presença de esofagite péptica diagnosticada pela endoscopia digestiva alta e o valor do índice de refluxo. A distribuição dos valores de índice de refluxo em MPE não guardou relação com a manifestação clínica ou a presença de esofagite num grupo de crianças avaliadas em hospital universitário<br>Abstract: A diversity of symptoms may be attributed to gastroesophageal reflux disease in children. A 24-h pH monitoring of the lower esophagus identifies frequency and duration of the acid reflux episodes, but the association between symptoms of gastroesophageal reflux and pH-monitoring data has been investigated in few studies involving children. This study aimed to identify data of the pH-monitoring studies in children and correlate them to the clinical picture. Data of pH-monitoring studies performed from January 1999 to December 2004 in a Medical School Hospital were analyzed. Patients were classified into four groups according to their predominant clinical symptom: infant regurgitation, digestive symptoms, respiratory symptoms and cerebral palsy. Clinical data and pH-monitoring reports from 131 patients (1 to 20.6 years) were analyzed. The most frequent reasons for laboratorial investigation were vomiting, anemia, poor weight gain and recurrent pneumonia. It was found that 89 (67.9%) patients had an abnormal pH-metry study, although only 4 of 18 patients in the regurgitation group. No clinical group was related to reflux index >4. There was no significant association between peptic esophagitis, confirmed by upper digestive endoscopy, and reflux index. In this group of children reflux inex were not associated to clinical presentation or to upper digestive endoscopy data<br>Mestrado<br>Pediatria<br>Mestre em Saude da Criança e do Adolescente
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Vicente, Alessandra Maria Borges. "Revisao da fundoplicatura de nissen para tratamento da doença do refluxo gastroesofagico em crianças e adolescentes." [s.n.], 2007. http://repositorio.unicamp.br/jspui/handle/REPOSIP/309096.
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Orientador: Elizete Aparecida Lomazi da Costa Pinto<br>Dissertação (mestrado) - Universidade Estadual de Campinas, Faculdade de Ciencias Medicas<br>Made available in DSpace on 2018-08-09T12:58:44Z (GMT). No. of bitstreams: 1
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Previous issue date: 2007<br>Resumo: Doença do refluxo gastroesofágico, em crianças, pode causar prejuízos nutricionais, doença respiratória, alterações neurocomportamentais e inflamação esofágica. O tratamento desta doença requer medidas posturais, orientação alimentar e terapia medicamentosa. O tratamento cirúrgico está indicado para pacientes com doença do refluxo gastroesofágico crônica, associada ou não a complicações. A fundoplicatura é indicada, em substituição ao uso contínuo dos inibidores de bomba de prótons, para pacientes que não respondem ou respondem apenas parcialmente ao tratamento medicamentoso e quando há recorrência dos sintomas com a descontinuação das medicações. No pós-operatório pode ocorrer desmanche da válvula e recorrência da doença de refluxo, sugerindo a necessidade de monitorização da condição cirúrgica. A avaliação do funcionamento da válvula, baseada apenas nos sintomas dos pacientes, tem se mostrado insuficiente para essa monitorização. O objetivo desse estudo foi identificar a freqüência de anormalidades na válvula anti-refluxo e a freqüência de complicações pépticas do esôfago no pós-operatório tardio de fundoplicatura em crianças. Em estudo transversal e descritivo, foram selecionados 45 pacientes que realizaram fundoplicatura de Nissen num período de 12 a 30 meses prévios à avaliação. O estudo foi conduzido de maio de 2004 a fevereiro de 2007, no Hospital de Clínicas da Universidade Estadual de Campinas, onde todas as cirurgias foram realizadas. A faixa etária dos pacientes avaliados variou de 16 meses a 16,9 anos. Endoscopia digestiva alta foi o instrumento utilizado para verificar o aspecto da fundoplicatura e o do esôfago, além de permitir a coleta de amostra para estudo histológico. Dos 45 pacientes avaliados, 26 (57,8%) eram encefalopatas crônicos. Válvula anti-refluxo bem posicionada e configurada foi encontrada em 41 (91,1%) pacientes. A fundoplicatura foi efetiva no tratamento do processo inflamatório esofágico, mesmo quando havia subestenose ou estenose de esôfago associadas no pré-operatório. Contudo, complicações foram identificadas: esofagite péptica em 6 dos 45 pacientes e necessidade de nova fundoplicatura em dois pacientes. Esofagite péptica associou-se, com significância estatística, à presença de anormalidades na válvula anti-refluxo (p=0,005, teste exato de Fisher). Durante o estudo foram diagnosticados dois pacientes com diagnóstico de esôfago de Barrett. Os resultados permitem concluir que a endoscopia digestiva alta realizada no período pós-operatório tardio de fundoplicatura para doença do refluxo gastroesofágico em crianças permite avaliar a condição da válvula anti-refluxo e diagnosticar a presença de complicações<br>Abstract: Gastroesophageal reflux disease in childhood may cause nutritional impairment, esophagus inflammation, respiratory disorders and neurobehavioral alterations. In most cases, treatment includes postural, dietary and medical therapy. Anti-reflux surgery is recommended to patients who do not present improvement with proton pump inhibitors treatment, or present recurrence of symptoms when medical therapy is discontinued. Fundoplication surgery failed has been detected and it has been showed that wrap condition needs monitoring and that clinical symptoms are not sensitive enough to indicate fundoplication efficacy. The objective of this study was to identify the frequency of defective wrap in the late postoperative period and evaluate esophageal complications related with gastroesophageal reflux recurrence in children. The study was cross sectional and descriptive, by selecting 45 patients who had undergone Nissen fundoplication, 12 to 30 months before. All procedures were done at the Hospital de Clínicas da Universidade Estadual de Campinas, in the period from May 2004 to February 2007. The age range at post-surgery examination varied from 16 months up to 16.9 years. Upper gastrointestinal endoscopy was used to determine esophageal endoscopic and histopathologic appearance and fundoplication condition. In the evaluated sample, 26 patients (57.8%) were neurologically disabled. Intact wrap was identified in 41 patients (91.1%). The fundoplication was effective for treating esophagitis, even in patients with esophagus stenosis. However, some complications were identified: peptic esophagitis in 6 of 45 patients and a second fundoplication was necessary in 2 patients. Peptic esophagitis in the endoscopic evaluation was associated with defective wrap (p=0.005, Fisher¿s exact test). Two patients with Barrett esophagus were identified, during study. We conclude that endoscopic follow up may be useful for patients who underwent anti-reflux surgery. Endoscopy allows the diagnosis of possible complications<br>Mestrado<br>Pediatria<br>Mestre em Saude da Criança e do Adolescente
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Batista, Carlos Alexandre Gonçalves. ""Estudo clínico e endoscópico em pacientes com úlcera péptica gastroduodenal após 1 ano de erradicação do Helicobater pylori. Avaliação da relação entre o surgimento da esofagite erosiva e a cepa do Helicobacter pylori erradicado"." Universidade de São Paulo, 2006. http://www.teses.usp.br/teses/disponiveis/5/5147/tde-20092006-134022/.
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Atualmente, muitas são as diretrizes na literatura quanto à influência do Helicobacter pylori na Doença do Refluxo Gastroesofágico. Alguns autores acreditam que o H. pylori poderia ter um efeito protetor para o desenvolvimento na DRGE e outros até mesmo concluem que o agente possa ser um fator agravante na doença. Muitas publicações nos alertam para o desenvolvimento de sintomas da DRGE, ou mesmo da esofagite, em uma porcentagem razoável de pacientes erradicados pelo esquema tríplice para tratar o H. pylori, sendo que aproximadamente 10% teriam DRGE. Na verdade, por essas dúvidas, ainda não foi estabelecido um consenso quanto à importância do H. pylori na etiopatogenia da DRGE e suas complicações. Fato também discutido, seria a importância das cepas para a formação da esofagite em pacientes submetidos à erradicação. Talvez as mais virulentas, assim como a presença da ilha de patogenicidade(cagA) ou algumas cepas vacuolizantes (vacA), teriam uma maior relação com a prevenção da esofagite. Outro mecanismo importante, apontado por muitos, para a formação da esofagite em pacientes erradicados seria a elevação do índice de Massa Corpórea nesse grupo de pacientes erradicados associados ou não à presença da hérnia hiatal e justificados pela melhor qualidade de vida após melhora dos sintomas depois da erradicação. Em nosso estudo, 148 pacientes com úlcera péptica ativa ou cicatrizada receberam esquema tríplice de erradicação para o Helicobacter pylori e foram submetidos a exame endoscópico e ao teste histopatológico das amostras colhidas por biópsias de corpo e antro, teste respiratório com Carbono 14 e urease, antes e após o tratamento. Realizamos a genotipagem do agente, através do PCR, separando amostras de corpo e de antro, para determinar as cepas do agente. Os pacientes foram seguidos ambulatorialmente por um ano e avaliados quanto à melhora ou piora dos sintomas relacionados a DRGE (pirose) e sintomas considerados inespecíficos como a dor epigástrica; também procuramos quantificar o ganho ou perda do IMC. Encontramos 28 pacientes (18,9%) com esofagite erosiva (24 grau A e 4 grau B de Los Angeles) endoscópica após o tratamento do agente. Deste grupo, somente 3 pacientes que não tinham sintomas desenvolveram pirose (2%). A grande maioria dos pacientes se beneficiou com o tratamento, mostrando que 69 46,6%) melhoraram da pirose e outra grande maioria melhorou dos sintomas inespecíficos. Em 18 pacientes ulcerosos com esofagite, a análise de fragmentos de corpo foi cagA positiva (64,3%) e em amostras de antro 21 eram cagA positivos (75%). Assim como no grupo geral, as cepas vacuolizantes s1b/m1 e s1b foram, respectivamente, as mais encontradas no grupo da esofagite endoscópica. Houve ligeiro aumento nos Índices de Massa Corpórea em pacientes com e sem esofagite, sendo estatisticamente mais significativo nos 120 pacientes sem esofagite. Apesar do aparecimento da esofagite erosiva endoscópica em número razoável de pacientes, a sintomatologia não foi fator determinante, pois muitos melhoraram dos sintomas após o tratamento, e a erradicação não foi importante para determinar o grau de esofagite erosiva. Não foi encontrada nenhuma relação entre a genotipagem do agente e o desenvolvimento de esofagite endoscópica. O aumento de IMC, também não justifica, em nosso estudo a esofagite em pacientes ulcerosos tratados contra o H. pylori.<br>Nowadays, there are many directrixes in literature as to the influence of Helicobacter pylori, in the Disease of Gastroesophagic reflux. Some authors believe that H. pylori could have a protective effect to the development of GERD, and others even conclude that the agent may be an aggravating factor in the disease. Many publications allert us to the development of symptoms of GERD, or even the esophagitis,in a reasonable percentage of erradicated patients by the triplicit scheme to treat H. pylori, and 10%, approximately, would have GERD. In fact, due to these doubts, a consensus has not been established yet to the importance of H. pylori in the GERDs etiopathogenic and its complications. The strains importance to the formation of esophagitis in patients submitted to erradication is another fact that has also been discussed. Maybe the most virulent ones, as the presence of pathogenical island(cagA) or some other vacuolating cytotoxin (vacA), would have a larger relation in the esophagitis prevention. Another important mechanism, pointed by many, to the formation of esophagitis in erradicated patients would be the elevation of Body Mass Index in this group of eradicated patients associated or not to the presence of hiatal hernia and justified by a better quality of life due to symptoms improvement after erradication. In our studies, 148 patients with active or healed peptic ulcer received triplicit scheme of erradication to the Helicobacter pylori and were submitted to endoscopic exams and histopathologic test of gathered samples by body and antro biopsies, respiratory test with carbon 14 and ureasis, before and after treatment. We have done the agent genotyping, through the PCR, separating samples of body and antro, to determine the agent Cepas. The patients have been followed ambulatorially for a year and evaluated as to the improvement or worsening of the symptoms related to GERD (pyrosis) and symptoms considered non-specific as epigastric pain; we have also tried to quantify the gain or loss of Body Mass Index. We found 28 patients(18.9%) with endoscopic erosive esophagitis (24 degree A and 4 degree B of Los Angeles) after agents treatment. In this group, only three patients who had no symptoms developed pyrosis (2%). Most of the patients benefitted from treatment showing that 69 (46.6%) presented improvement in pyrosis and another great majority improved non-specific symptoms. In 18 ulcered patients with esophagitis, the body analysis fragments was positive cagA (64.3%)and in antro samples of 21 were positive cagA (75%). As in the general group, the vacuolizing cepas slb/ml and slb were, respectivelly, the most found in the endoscopic esophagitis group. There was a slight raise in the BMI in patients with and without esophagitis, and it is, statistically more meaningful in the 120 patients without esophagitis. Even though there was the appearance of endoscopic erosive esophagitis in a reasonable number of patients, the symptmology was not a determining factor, because many have got better after the treatment, and erradication was not important to determine the erosive esophagitis. It was not found any relation between the agent genotyping and the development of endoscopic esophagitis. The raise of BMI does not justify in our study the esophagitis in ulcered patients treated against H. pylori.
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Alves, Marilene Bargas Rodrigues. "Erosão dental em pacientes com doença do refluxo gastroesofágico." Universidade de São Paulo, 2008. http://www.teses.usp.br/teses/disponiveis/23/23139/tde-20012009-150512/.
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A doença do refluxo gastroesofágico consiste num conjunto de manifestações orgânicas causadas pelo fluxo retrógrado do conteúdo gástrico para o esôfago. A associação entre doença do refluxo gastroesofágico e erosão dental sinaliza uma conseqüência da ação do refluxo ácido. A erosão dental define-se como perda irreversível da estrutura dental causada por um processo químico não envolvendo a ação bacteriana. Este estudo avaliou a associação Erosão Dental com a doença do Refluxo Gastroesofágico, faixa etária, gênero e nível de escolaridade em pacientes com diagnóstico endoscópico de esofagite por refluxo gastroesofágico, conforme Savary-Miller modificada, grupo (E), em comparação aos pacientes sem este diagnóstico (endoscopicamente normais), grupo normal (N), atendidos no Centro de Endoscopia Digestiva do Hospital Sírio-Libanês de São Paulo. Foram examinados 120 pacientes com idade variando entre 20 e 80 anos (média de 46,76 anos), de ambos os gêneros, com diagnóstico endoscópico de esofagite por refluxo gastroesofágico, e 60 pacientes com idade variando entre 20 e 80 anos (média de 39,97 anos), de ambos os gêneros, sem diagnóstico de esofagite por refluxo gastroesofágico. O protocolo específico foi respondido pelo paciente ou por seu representante legal. A metodologia adotada envolveu, numa primeira etapa, exame de endoscopia digestiva alta e esofagite por refluxo gastroesofágica diagnosticada segundo a classificação de Savary-Miller modificada. Em seguida, o exame oral foi realizado e a erosão dental foi classificada, quando presente, segundo a escala de graduação de ED proposta por Eccles e Jenkins. Para análise estatística, os resultados foram testados para cada variável pelo método do Qui Quadrado de Pearson (X²). Os resultados estatísticos indicaram que a esofagite por refluxo gastroesofágico é fator significativo para o aparecimento de erosão dental. A faixa etária é fator significativo para o aparecimento de erosão dental até o limite de 49 anos para o grupo N e 59 anos no grupo E. O gênero masculino é fator significativo para o não aparecimento de erosão dental nos grupos estudados, enquanto que o gênero feminino é significativo para o não aparecimento de erosão dental no grupo N e não significativo para o grupo E. O nível de escolaridade 3 foi significativo para o não aparecimento de erosão dental nos grupos N e E com p = 0,000. Esses resultados possibilitam concluir que os pacientes com erosão dental possuem algum grau de esofagite por refluxo gastroesofágico, têm idade entre 30 e 49 anos e apresentam menor nível de escolaridade.<br>Gastroesophagic reflux disease is a set of organic manifestations caused by gastric reflux to the esophagus. The association between Gastroesophagic reflux disease and dental erosion demonstrates the result of acid reflux. Dental erosion is defined as the irreversible loss of dental structure caused by a chemical process that does not involve bacterial action. This study evaluated Dental Erosion associated with Gastroesophagic reflux disease, according to age, sex and educational level in patients with an endoscopic diagnosis of esophagitis caused by gastroesophagic reflux using modified Savary-Miller classification, group (E) compared to patients without this diagnosis (endoscopically normal), a normal group (N), treated at Centro de Endoscopia Digestiva do Hospital Sírio-Libanês de São Paulo. 120 patients were examined, with ages ranging from 20 to 80 (average age 46.76), of both sexes presenting with an endoscopic diagnosis of esophagitis caused by gastroesophagic reflux, and a further 60 patients aged between 20 and 80 (average age 39.97) of both sexes not diagnosed with esophagitis caused by gastroesophagic reflux. Specific protocol was answered by the patient or their legal representative. The methodology adopted involved, in the first stage, an endoscopic examination of the upper digestive tract and a test for esophagitis caused by gastroesophagic reflux, diagnosed according to modified Savary-Miller classification. This was followed by an oral examination and dental erosion was classified when present in accordance with the Eccles and Jenkins Scale. For statistical analysis the results were tested for each variable using the Pearson Chi-square test (X²). The statistical results indicated that esophagitis caused by gastroesophagic reflux is a significant factor in the presence of dental erosion. Age is a significant factor in the presence of dental erosion, 49 years old group N and 59 years old group E. The male is a significant factor for not presence of dental erosion in the groups studied, other wise female is significant factor for not presence of dental erosion in the group N and not a significant factor in the group E. Educational level 3 was significant in the not presence of dental erosion. These results lead to the conclusion that patients who presented with dental erosion and a high degree of esophagitis caused by gastroesophagic reflux, 30 49 years old, and had a lower level of education.
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Duchoňová, Veronika. "Management pacientů s gastroezofageálním refluxem." Master's thesis, Vysoká škola ekonomická v Praze, 2011. http://www.nusl.cz/ntk/nusl-162464.
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This thesis provides a description of reflux disease, especially its nature, diagnosis and treatment, followed by the analysis of the costs of this disease and the procedure for the patient as an example.
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Mendes, Thaís de Barros. "Monitorização prolongada do pH esofágico em recém-nascidos com menos de 1500 gramas com e sem displasia broncopulmonar = prevalência e fatores associados para resultados anormais do índice de refluxo." [s.n.], 2010. http://repositorio.unicamp.br/jspui/handle/REPOSIP/310796.
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Orientadores: Maria Aparecida Marques dos Santos Mezzacappa, José Dirceu Ribeiro<br>Tese (doutorado) - Universidade Estadual de Campinas, Faculdade de Ciências Médicas<br>Made available in DSpace on 2018-08-18T05:32:42Z (GMT). No. of bitstreams: 1
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Previous issue date: 2010<br>Resumo: Recém-nascidos (RN) com displasia broncopulmonar (DBP) apresentam alta frequência de tratamento para doença do refluxo gastroesofágico (DRGE). O agravamento da evolução desta doença pulmonar é atribuído à associação entre as duas entidades. Em virtude das indefinições quanto à ocorrência da DRGE em RN com DBP e dadas as possíveis consequências sobre a sua morbidade, bem como as altas frequências de tratamento clínico, considerou-se ser de interesse estudar a presença de anormalidades da monitorização prolongada do pH esofágico em RN com e sem DBP. Objetivos- Determinar a prevalência de índice de refluxo (IR) ?10% na monitorização prolongada do pH esofágico em RNMBP com e sem o diagnóstico de DBP e estabelecer fatores associados. Métodos- Foi realizado um estudo prospectivo e de corte transversal com um componente longitudinal. Foram selecionados 35 casos com DBP e 15 sujeitos para o grupo de comparação que foram submetidos à monitorização prolongada do pH esofágico distal, no período de abril de 2004 a dezembro de 2008. Foram analisadas as variáveis demográficas, de evolução pós-natal, referentes a procedimentos e medicamentos no período neonatal, bem como os escores de gravidade clínica e radiológica da DBP e de gravidade da doença pulmonar na primeira semana de vida. Foram empregados os testes de Qui-quadrado e Exato de Fisher para as variáveis categóricas, e para as numéricas o teste U de Mann-Whitney. Em seguida foi realizada a análise por regressão logística univariada e múltipla para determinar o odds-ratio (OR) e o seu intervalo de confiança (IC) de 95%. Resultados- A prevalência de IR ?10% nos grupos com e sem DBP foi de 65,7% e 93,3%, respectivamente. O peso ao nascer foi o fator preditor independente de risco para o IR ?10% (OR 1,769 IC95% 1,172-2,669). Conclusão- Foi encontrada uma prevalência de IR ?10% em RN com DBP de 65,7% e no grupo de comparação de 93,3% sem sinais clínicos de DRGE. A chance de IR ?10% aumentou em 76,9% a cada aumento de 100 gramas no PN. Os resultados deste estudo permitem concluir que a prevalência de IR ?10% não é maior em RN com DBP do que no grupo de comparação. RN assintomáticos ou com apneia da prematuridade podem apresentar IR ?10%, sendo assim o diagnóstico de DRGE baseado nos resultados da monitorização do pH esofágico e a indicação de qualquer modalidade terapêutica precisa ser criteriosa até que se definam quais são os RN que necessitam de tratamento<br>Abstract: Neonates with bronchopulmonary dysplasia (BPD) present high frequency of treatment for gastroesophageal reflux disease (GERD). The relationship between these illnesses is controversy. Due to indefinations for ocorrency of GERD in newborns with BPD and considering the possible consequences about his morbidity so as the high frequency of clinical treatment, seems to us important to study the presence of abnormalities in the prolonged esophageal pH monitoring in neonates with and without BPD. Objectives- To determine the prevalence pH esophageal monitoring alterations in very low birth weight infants with and without BPD and establish associated factors for reflux index (RI) ?10%. Methods- A prospective, cross-sectional study, with a longitudinal component was realized, including 35 newborns with BPD and 15 subjects for the comparison group, that were submitted to 24 hours esophageal pH monitoring and studied from April 2004 to December 2008. Were evaluated variables demographics, postnatal evolution, procedures and medications used in the neonatal period, scores of clinical and radiologic severity and initial lung disease in the first week of life. For the statistic analysis were utilized the chi-square test and the Fisher's exact test for the category variables, and Mann-Whitney's test for numerical variables. Multiple logistic regression was used for to determine odds-ratio (OR) and confidence interval (CI) of 95%. Results- The prevalence of RI ?10% in the groups with e without BPD was 65.7% and 93.3%, respectively. The birth weight (BW) was the independent predictor factor for RI ?10% (OR 1.769 CI95% 1.172-2.669). Conclusions- High frequency of RI altered was demonstrated in newborns with BPD and the comparison group without clinics signs of GERD. The chance of RI ?10% increased in 76.9% in each increase of 100 grams in the BW. The results showed that the prevalence of RI ?10% not is major in neonates with BPD. Asymptomatic newborns or infants with apnea of prematurity may present IR ?10%, so the diagnosis of GERD based on the results of esophageal pH monitoring and indication of any therapeutic modality needs to be careful until a definition of which are infants who need treatment<br>Doutorado<br>Saude da Criança e do Adolescente<br>Doutor em Saude da Criança e do Adolescente
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Corrêa, Maria Carolina Canteras Scarillo Falotico [UNESP]. "Avaliação dos parâmetros salivares de pacientes portadores da doença do refluxo gastroesofágico antes e após tratamento cirúrgico." Universidade Estadual Paulista (UNESP), 2010. http://hdl.handle.net/11449/101463.
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correa_mccsf_dr_botfm.pdf: 1223305 bytes, checksum: 5c66133cbd0a73e43cfc325d6f81fd13 (MD5)<br>Coordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES)<br>Na doença do refluxo gastroesofágico (DRGE), o conteúdo gástrico pode retornar ao esôfago e atingir a cavidade oral, acarretando pequeno número de lesões cariosas e elevada incidência de erosões dentais. Sendo a saliva a principal responsável pela homeostase oral, a avaliação dos parâmetros salivares é imperiosa, numa tentativa de explicar este resultado. Os objetivos deste trabalho foram, analisar os parâmetros salivares (fluxo, pH e capacidade tampão da saliva), contagem de bactérias, índice de cárie e erosão dental em pacientes com a DRGE e avaliar o comportamento dos parâmetros salivares antes e após o tratamento cirúrgico dos indivíduos refluidores crônicos. Foram estudados 60 pacientes, sendo 30 com a DRGE (Grupo 1) e 30 controles (Grupo 2). A confirmação do diagnóstico da DRGE foi realizada através de exames endoscópico, manométrico e pH métrico do esôfago, realizados nos pacientes do Grupo 1. A endoscopia digestiva alta revelou esofagite em todos os pacientes, sendo 10 erosivas (33,3%) e 20 não erosivas (66,6%) e hérnia hiatal em 17 deles (56,6%). Os valores pressóricos no esfíncter inferior e superior do esôfago foram 10,75 + 2,42 mmHg e 75,24 + 28,08 mmHg respectivamente. O refluxo gastroesofágico foi observado em 25 pacientes do Grupo 1 (83,3%). O exame clínico revelou: erosões dentais: no Grupo 1, 141 faces dentárias com erosão comparado a 4 faces no Grupo 2, sendo a face palatina mais afetada (p<0,001), cárie dentária o Grupo 1 apresentou 41 dentes cariados e o Grupo 2, 156 (p<0,001). Os parâmetros salivares assinalados foram realizados nos pacientes dos grupos 1 e 2. O fluxo salivar estimulado no Grupo 1: 0,75 + 0,29 ml/min e no Grupo: 2: 0,78 + 0,52 ml/min (p=0,80); o pH salivar para o Grupo 1 foi 7,1 + 0,4 e no Grupo 2: 7,0 + 0,4 (p=0,85). A capacidade de tampão salivar dos pacientes com a DRGE apresentou valores mais baixos...<br>In the gastroesophageal reflux (GERD), the gastroduodenal content can leak back to the esophagus and reach the oral cavity causing some carious lesions and a high incidence of dental erosions. Salivary parameters evaluation is necessary to explain these results once saliva is the main cause of homeostasis. This paper aimed at analyzing the salivary parameters (flow and buffering capacity), bacteria count, erosion and tooth decay index in GERD patients. Sixty patients were studied: 30 GERD patients (group 1) and 30 the control group (group 2). Endoscopic, manometric, and pHmetric exams performed in the esophagus confirmed GERD in group 1 patients. High digestive endoscopy revealed esophagitis in all patients, being 10 erosive (33.3%) and 20 non-erosive (66.6%) and hiatal hernia in 17 of them (56.6%). Pressoric values in the lower and upper esophageal sphincter were 10.75 ± 2.42 mmHg, and 75.24 ± 28.08 mmHg respectively. Gastroesophageal reflux was observed in 25 patients of Group 1 (83,3%). The clinical exam showed: dental erosions: 141 erosion faces in Group 1 and 4 faces in Group 2 - the palatine face was the most affected (p<0.001); tooth decay: 41 decayed teeth in Group 1 and 156 in Group 2 (p<0.001). Salivary parameters were performed in both groups. Salivary stimulated flow rate in Group 1 was 0.75 ± 0.29 ml/min and in Group 2, 0.78 ± 0.52 ml/min (p=0.80); salivary pH in Group 1 was 7.1 ± 0.4 and in Group 2: 7.0 ± 0.4 (p= 0.85). GERD patients showed lower buffering capacity than the patients in the control group: 3.21 ± 0.7 and 3.7 ± 0.9 respectively (p= 0.018). GERD patients presented lower number of bacteria (Lactobacillus and Streptococcus) than the control group (p= 0.0067 and p= 0.0017 respectively). Non-stimulated salivary flow rate in GERD patients in the preoperative (0.26 ± 0.18) did not differ from the postoperative (0.29 ± 0.15; p=0.43). There was no ... (Complete abstract click electronic access below)
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Corrêa, Maria Carolina Canteras Scarillo Falotico [UNESP]. "Efeitos do refluxo gastroesofágico na cavidade oral." Universidade Estadual Paulista (UNESP), 2007. http://hdl.handle.net/11449/86317.
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correa_mccsf_me_botfm_prot.pdf: 1406876 bytes, checksum: 2e2f4ae9e757377b79aeedad040ad016 (MD5)<br>Coordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES)<br>Fundação para o Desenvolvimento Médico e Hospitalar (Famesp)<br>A doença do refluxo gastroesofágico (DRGE) é uma infecção de elevada incidência no qual o refluxo gastroduodenal reflui para o esôfago e/ou orgãos adjacentes, inclusive a cavidade oral, podendo causar lesões ou nos tecidos duros e moles. Foram estudados 100 pacientes, sendo 50 portadores da DRGE (Grupo 1) e 50 controles...<br>Gastroesophageal reflux disease, or GERD is a high incidence condition in which gastro duodenal contents leak back, or refluz, into the esophagus and/or adjancent organs including the oral cavity and the therefore possibly causing lesions on the soft and hard tissue structures... (Complete abstract, click eletronic address below)
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Ribeiro, Maxwel Capsy Boga 1982. "Avaliação de doentes portadores de doença do refluxo gastro-esofágico submetidos à fundoplicatura a Nissen modificada quanto a ocorrência de disfagia pós-operatória persistente." [s.n.], 2013. http://repositorio.unicamp.br/jspui/handle/REPOSIP/311395.
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Orientadores: Nelson Adami Andreollo, Luiz Roberto Lopes<br>Dissertação (mestrado profissional) - Universidade Estadual de Campinas, Faculdade de Ciências Médicas<br>Made available in DSpace on 2018-08-22T20:12:11Z (GMT). No. of bitstreams: 1
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Previous issue date: 2013<br>Resumo: A doença do refluxo gastroesofágico (DRGE) possui enorme relevância na sociedade, uma vez que é considerada a moléstia mais prevalente do trato digestivo superior. O entendimento de sua fisiopatologia, oriundo dos avanços propedêuticos, o surgimento de novas drogas eficazes na inibição da produção da secreção ácida gástrica, em níveis suficientes para a cicatrização de lesões esofágicas inflamatórias e a realidade da cirurgia videolaparoscópica contribuíram muito para o alívio da sintomatologia dos pacientes e em muitos casos para a cura das lesões causadas pelo refluxo gastroesofágico patológico. O tratamento cirúrgico videolaparoscópico é o grande avanço terapêutico nestes últimos anos, sendo que a sua indicação visa buscar a correção das alterações que levam ao surgimento da DRGE e com isso eliminar sintomas e curar as lesões esofágicas. Um grupo de 55 pacientes portadores de DRGE operados laparoscopicamente pela técnica de Nissen modificada, com e sem disfagia pré-operatória, foi avaliado clinica, manometrica, endoscopica, radiologica e cintilograficamente, antes da cirurgia. No período pósoperatório, estes pacientes foram estudados, com o intuito de pesquisar fatores de risco préoperatórios para o surgimento de disfagia pós-operatória persistente. O seguimento ambulatorial médio, após a cirurgia, foi de 47,5 meses. A idade destes pacientes variou de 25 a 74 anos, com média de 50 anos. O sexo feminino foi predominante com 50,91%. Houve associação estatística entre disfagia pré-operatória e disfagia pós-operatória, entre disfagia pós-operatória precoce (nas primeiras 6 semanas) e persistente (após 6 semanas). A dilatação esofágica endoscópica foi terapia segura e eficaz para pacientes disfágicos. Houve, também, associação estatística entre satisfação com a cirurgia e não necessidade de utilização de medicação antirefluxo após o procedimento, bem como entre satisfação com a cirurgia e ausência de disfagia pós-operatória persistente. Disfagia pré-operatória intensa foi fator de risco, com significância estatística, para ocorrência de disfagia pós-operatória persistente. Deste modo, este estudo conclui que uma anamnese minunciosa, para caracterização adequada dos pacientes candidatos a terapia cirúrgica para a DRGE, mesmo que subjetiva, através de consulta médica, foi mais importante que exames complementares, como a manometria esofágica, com dados aferidos objetivamente, para presunção de disfagia pós-operatória, que está diretamente relacionada com a satisfação do paciente, tanto quanto o controle efetivo dos sintomas, sem necessidade de uso regular de medicação<br>Abstract: Gastroesophageal reflux disease (GERD) is of great importance to society as it is considered to be the most common disease of the upper digestive tract. Understanding of the physiopathology of this disease as a result of advances in technology, the appearance of new drugs capable of reducing gastric acid secretions to levels low enough to enable healing of inflammatory esophageal lesions, the advent of videolaparoscopic surgery, have all contributed extensively to relieving the symptoms of patients and in many cases curing the lesions caused by gastroesophageal reflux. Surgical treatment by videolaparoscopic has been the major advance in surgery in the last few years, and its use seeks to correct the alterations that lead to the appearance of GERD, therefore eliminating the symptoms and curing esophageal lesions. A group of 55 patients with GERD operated laparoscopically by modified Nissen technique, with and without preoperative dysphagia, was evaluated clinically, manometrically, endoscopically, radiologically and with nuclear study before surgery. In the postoperative period, these patients were studied for researching risk factors for appearance of persistent postoperative dysphagia. The average follow-up after surgery was 47.5 months. The age of these patients ranged from 25 to 74 years, with an average of 50 years. The females were predominant with 50.91%. There was a statistical association between preoperative dysphagia and postoperative dysphagia, between early postoperative dysphagia (within 6 weeks) and persistent postoperative dysphagia (after 6 weeks). Esophageal endoscopic dilatation therapy was safe and effective for patients with dysphagia. There was also a statistical association between satisfaction with the surgery and no need for use of antireflux medication after the procedure, as well as between satisfaction with the surgery and no postoperative persistent dysphagia. Intense preoperative dysphagia was risk factor for postoperative persistent dysphagia. Therefore, this study concludes that evaluation of the candidates for surgical therapy for GERD, even though subjective, through anamnesis, was more important than exams, such as esophageal manometry, with data measured objectively, to presumption of postoperative dysphagia, which is directly related to patient satisfaction, as well as effective control of symptoms without the need for regular medication<br>Mestrado<br>Fisiopatologia Cirúrgica<br>Mestre em Ciências
Books on the topic "Refluxed"
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O, Castell Donald, Wu Wallace C, and Ott David J. 1946-, eds. Gastro-esophageal reflux disease: Pathogenesis, diagnosis, therapy. Futura, 1985.
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Jamal, Nausheen, and Marilene B. Wang, eds. Laryngopharyngeal Reflux Disease. Springer International Publishing, 2019. http://dx.doi.org/10.1007/978-3-030-12318-5.
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Granderath, Frank A., Thomas Kamolz, and Rudolph Pointner, eds. Gastroesophageal Reflux Disease. Springer-Verlag, 2006. http://dx.doi.org/10.1007/3-211-32317-1.
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Carolyn, Scott, ed. Gastro-oesophageal reflux. Reed Healthcare Communications, 1991.
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Piracha, Kashif. Gastroesophageal Reflux Disease. Springer Nature Switzerland, 2023. http://dx.doi.org/10.1007/978-3-031-26915-8.
Full textBook chapters on the topic "Refluxed"
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Asri, Nyoman Puspa, Bambang Pujojono, Diah Agustina Puspitasari, S. Suprapto, and Achmad Roesyadi. "Biodiesel Production Using Double-Promoted Catalyst CaO/KI/γ-Al2O3 in Batch Reactor with Refluxed Methanol." In Energy Systems and Management. Springer International Publishing, 2015. http://dx.doi.org/10.1007/978-3-319-16024-5_15.
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Ge, Lei, Ming Xia Xu, Hai Bo Fang, and Ming Sun. "Synthesis and Characterization of Refluxed Sols and TiO2 Thin Films Using TiOSO4." In Key Engineering Materials. Trans Tech Publications Ltd., 2007. http://dx.doi.org/10.4028/0-87849-410-3.2189.
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Schultz-Ehrenburg, U. "Refluxe bei chronischer Veneninsuffizienz." In Verhandlungen der Deutschen Dermatologischen Gesellschaft. Springer Berlin Heidelberg, 1986. http://dx.doi.org/10.1007/978-3-642-82597-2_74.
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Weiss, Robert A., and Adrian Spitzer. "Vesicoureteral Reflux and Reflux Nephropathy." In Suki and Massry’s THERAPY OF RENAL DISEASES AND RELATED DISORDERS. Springer US, 1998. http://dx.doi.org/10.1007/978-1-4757-6632-5_26.
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Kincaid-Smith, Priscilla. "Vesicoureteral Reflux and Reflux Nephropathy." In Therapy of Renal Diseases and Related Disorders. Springer US, 1991. http://dx.doi.org/10.1007/978-1-4613-0689-4_24.
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Cendron, Marc. "Reflux Nephropathy and Vesicoureteral Reflux." In Core Concepts in Parenchymal Kidney Disease. Springer New York, 2013. http://dx.doi.org/10.1007/978-1-4614-8166-9_25.
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Schlottmann, Francisco, Fernando A. M. Herbella, and Marco G. Patti. "Refractory Gastroesophageal Reflux Disease. Real Reflux or Fake Reflux?" In Gastroesophageal Reflux Disease. Springer Nature Switzerland, 2023. http://dx.doi.org/10.1007/978-3-031-48241-0_4.
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Avni, F. E., N. Damry, M. Hall, and T. Schurmans. "Vesicoureteric Reflux." In Pediatric Uroradiology. Springer Berlin Heidelberg, 2001. http://dx.doi.org/10.1007/978-3-642-59428-1_8.
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Mildenberger, H. "Vesikoureteraler Reflux." In Nephrologie — Urologie. Springer Berlin Heidelberg, 1985. http://dx.doi.org/10.1007/978-3-642-70602-8_4.
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Piccoli, Giuseppe, Francesco Quarello, Giulietta Beltrame, Patrizia Colombo, and Teresa Cammarota. "Reflux Nephropathy." In Tubulo-Interstitial Nephropathies. Springer US, 1991. http://dx.doi.org/10.1007/978-1-4615-3892-9_16.
Full textConference papers on the topic "Refluxed"
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Al-Dhafiri, Saad, Deepak Rawtal, and Laxma Reddy. "Erosion – Corrosion of SS316L Trays in FCC’S Sour Water Stripper – a Case Study." In CORROSION 2010. NACE International, 2010. https://doi.org/10.5006/c2010-10273.
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Abstract FCC Sour Water Treatment Unit (with Side Reflux type) having design capacity of 22.7m3/hr. was commissioned in 1987. Ever since the increase in throughput of sour water in 1998, the Stripper experienced repeated failure of top trays made of SS316L in year 2004 (after in service for 17 years) and subsequently in 2008 & 2009. This paper deals with the failure investigation and root cause analysis of repeated failure of top three trays of Sour water stripper(V-95-101). Optical Microscopy & Scanning Electron Microscopy (SEM) studies of failed sample were carried out. Root cause analysis have indicated that erosion - corrosion due to Ammonium bi-sulfide (NH4HS) in the presence of hostile environment of chloride & cyanide with increase in throughput are the contributing factors for the failure. Remedial measures such as minor modification to the cold reflux piping, up gradation of metallurgy and increase in thickness of affected trays are also discussed in the paper.
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Albertson, Skip, Bill Fox, Frank Meriwether, and Jan Newton. "A Dye, Current Meter, and Modeling Study in South Puget Sound — a Highly Refluxed Semi-Enclosed Estuary." In 10th International Conference on Estuarine and Coastal Modeling. American Society of Civil Engineers, 2008. http://dx.doi.org/10.1061/40990(324)56.
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Rajput, H. "Exploiting Reducing Ability of DMF For Assembled Gold Nanostructures." In Functional Materials and Applied Physics. Materials Research Forum LLC, 2022. http://dx.doi.org/10.21741/9781644901878-14.
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Abstract. We explore stable assembly of gold NPs in single step process by introducing a simple chemical synthesis in which pH changed gold precursor is added to dimethylformamide solution at RT. The redox chemistry of N, N-dimethylformamide (DMF) has been effectively utilized in the formation of surfactant free, small chain metal NPs networks (plasmonic oligomers) via molecular dipolar coupling. Kinetic absorption / TEM images illustrate gold nanocrystals formation, their inter-particle coupling as a function of pH as well as with DMF-Water ratio. Sub-nano gap inter-particle coupling b/w spherical/anisotropic Au NPs is seen through arising of new LSPR hump in NIR region. 1-D organized gold nanocrystals are formed when pH modified metal precursor is added to refluxed (80 0C) DMF: Water mixture. The inter-particle coupling provides unique strategy can promote complex sub-wavelength optical waveguides and nanophotonic devices.
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Kvinikadze, Sophiko, Davit Tsverava, Alexandre Vanishvili, Ramaz Katsarava, and Nikoloz Chikhradze. "SYNTHESIS AND CHARACTERIZATION OF AMINO ACID-BASED, ECO-FRIENDLY MATERIALS." In 23rd SGEM International Multidisciplinary Scientific GeoConference 2023. STEF92 Technology, 2023. http://dx.doi.org/10.5593/sgem2023/6.1/s26.42.
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Environmental pollution from polymer waste is one of the severe ecological problems. As of today, each day, approximately eight million pieces of plastic waste reach the ocean, where they are transformed into microplastics (small particles). Organisms in the sea are eating microplastics. The harmful effects of garbage ultimately affect humans. Due to the magnitude of the problem, the demand for biodegradable, eco-friendly materials, which will decompose after the operational period and will not pollute the environment, has increased in recent years. The latter contribute significantly to the sustainable development of the economy, as they are characterized by a wide range of uses and zero or minimal environmental impact [1-2]. The presented research concerns the synthesis of rigid structure monomers and biodegradable polymers based on them. Monomers tosyl diamino-diesters (TDADE) were synthesized by thermal condensation of amino acids and cyclic diols in a refluxed organic solvent. For the synthesis of polymers, we used the interfacial polycondensation method - we synthesized pseudoproteins of poly(ester urea) class (PP-PEU) by polycondensation of TDADE monomers with triphosgene. The paper presents the synthesis of six new monomers - TDADE and the preparation of some rigid structured poly(ester urea) based on them. Polymers of this type are actively used mainly in the medical field, however, due to their mechanical characteristics, the application area is expected to be some engineering fields as well.
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Weidong, Cao, Dai Xun, and Hu Qixiang. "Research on the Effect of Impeller Reflux Balance Holes on Pressure and Axial Force of Centrifugal Pump." In ASME 2014 4th Joint US-European Fluids Engineering Division Summer Meeting collocated with the ASME 2014 12th International Conference on Nanochannels, Microchannels, and Minichannels. American Society of Mechanical Engineers, 2014. http://dx.doi.org/10.1115/fedsm2014-21992.
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The size of impeller reflux holes for centrifugal pump has influence on the pressure distribution of front and rear shrouds and rear pump chamber, as well as energy characteristics of whole pump and axial force. Low specific-speed centrifugal pump with Q=12.5m3/h, H=60m, n=2950r/min was selected to be designed with eight axial reflux balance holes 4.5mm in diameter. The simulated Q-H curve and NPSH were in good agreement with experimental data, which illustrated that centrifugal pump with axial reflux balance holes was superior in the cavitation characteristic to that with traditional reflux balance holes; however, it appeared little difference in head and efficiency. Compared with experiment results, the error of pressure at monitoring points in rear pump chamber was within permission. The pressure in rear pump chamber at 0.6 times rated flow is 29.36% of pressure difference between outlet and inlet, which reduces to 29.10% at rated flow and 28.33% at 1.4 times rated flow. As the whole, the pressure distribution on front and rear shrouds from simulation results is not a standard parabola, and axial force decreased as flow rate increased. Radical reflux balance holes chosen to be 5.2mm and 5.9mm in diameter were further designed with other hydraulic parts unchanged. With structural grids adopted for total flow field, contrast numerical simulation on internal flow characteristics of reflux holes with different diameters was conducted based on momentum equations and standard turbulence model (κ-ε). It is found that axial force of pump with radical reflux balance holes 5.2mm and 5.9mm in diameter is significantly less than that with radical reflux balance holes 4.5mm in diameter, so are the head and efficiency. Better effect of axial force balance can be obtained as the ratio of area of reflux balance holes and area of sealing ring exceeds 6.
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Chen, Y. T., R. F. Boehm, and A. G. Little. "Flow Description in a Gastroesophageal Reflux Episode." In ASME 1998 International Mechanical Engineering Congress and Exposition. American Society of Mechanical Engineers, 1998. http://dx.doi.org/10.1115/imece1998-0173.
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Abstract A numerical simulation is performed on a model of a theoretical gastroesophageal reflux behavior. The process modeled here assumes that the lower esophageal sphincter relaxes and opens, allowing a reflux episode to be initiated by a driving pressure differential in the stomach. At that point the pressure differential is removed and the contents flow back down to the gastric cavity. A typical response of the reflux phenomena is shown.
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Nasi, Ary. "Doença do refluxo gastroesofágico refratária." In XVI Semana Brasileira do Aparelho Digestivo. Editora Manole, 2017. http://dx.doi.org/10.22288/978852045650700001.
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Webb, David R., and S. B. Al-Shammari. "Separation in Reflux Condensers." In International Heat Transfer Conference 12. Begellhouse, 2002. http://dx.doi.org/10.1615/ihtc12.5510.
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Li, Hong, Zhenhua Shen, Jianrui Liu, and Chao Wang. "Influence of Pressure Fluctuation on Reflux Valve in a Self-Priming Pump With Outer Recirculation." In ASME 2010 3rd Joint US-European Fluids Engineering Summer Meeting collocated with 8th International Conference on Nanochannels, Microchannels, and Minichannels. ASMEDC, 2010. http://dx.doi.org/10.1115/fedsm-icnmm2010-30216.
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The pressure fluctuation caused by impeller-volute interaction is one of the factors which affect the stability of self-priming pump with outer recirculation. Based on the RNG k–ε turbulence model, three-dimensional unsteady turbulence flow in a self-priming pump was simulated in this paper. Pressure fluctuations were obtained at 26 monitor points distributed at eight sections of the volute and on the reflux valve, and the influence on the valve was analyzed. The CFD results show that the main frequency of monitor points is blade passing frequency, and the pressure difference between maximum and average is minimal at the fifth section, which is 1.3%∼2.4%. Using pressure sensors and LabVIEW system, the pressures at third, fifth and seventh sections were tested. The experimental results show that pressure fluctuation layouts are similar as those from CFD, and the pressure difference at the fifth section is 4%, also the minimum. The position also is found with minimal influence on reflux valve. Reflux hole should be placed at 200° ∼ 220° from the tongue along the direction of the impeller rotation. Further, according to the CFD results, the Finite Element Analysis (FEA) of the reflux valve was carried out. FEA shows that the valve can close the reflux hole completely after self-priming process, which gets a good hydraulic performance when the pump runs normally.
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Nasi, Ary, and Natália Queiroz. "Doença do refluxo gastroesofágico no idoso." In XVIII Semana Brasileira do Aparelho Digestivo. Editora Manole, 2019. http://dx.doi.org/10.22288/978857868372600004.
Full textReports on the topic "Refluxed"
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Bisharat, May, and Marie-Klaire Farrugia. Vesico-ureteric reflux: open and laparoscopic management. BJUI Knowledge, 2019. http://dx.doi.org/10.18591/bjuik.0210.
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Chamberlain, John III A. Evaluation of the Dental Effects of Laryngopharyngeal Reflux. Defense Technical Information Center, 2015. http://dx.doi.org/10.21236/ad1012698.
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Hooper, E. B. Reflux physics and an operational scenario for the spheromak. Office of Scientific and Technical Information (OSTI), 2010. http://dx.doi.org/10.2172/1126762.
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Hoffman, E., and C. Stone. Structural analysis of a reflux pool-boiler solar receiver. Office of Scientific and Technical Information (OSTI), 1991. http://dx.doi.org/10.2172/5168668.
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Andraka, C., J. Moreno, R. Diver, and T. Moss. Sodium reflux pool-boiler solar receiver on-sun test results. Office of Scientific and Technical Information (OSTI), 1992. http://dx.doi.org/10.2172/7239599.
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Wang, Yan, and Guowei Che. Association of gastroesophageal reflux disease with risk of pulmonary diseases. INPLASY - International Platform of Registered Systematic Review and Meta-analysis Protocols, 2024. http://dx.doi.org/10.37766/inplasy2024.9.0013.
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Blanchard, A. Neutronic analysis of the 1D and 1E banks reflux detection system. Office of Scientific and Technical Information (OSTI), 1999. http://dx.doi.org/10.2172/750127.
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Ou, Jianzhao, Shuixin Chen, Peiming Huang, Jiayi Zou, Yuxin Luo, and Yini Gao. Acupuncture for laryngopharyngeal reflux: A protocol for systematic review and meta-analysis. INPLASY - International Platform of Registered Systematic Review and Meta-analysis Protocols, 2024. http://dx.doi.org/10.37766/inplasy2024.4.0013.
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Ku, Hsiao-Chien, and Fu-Huan Huang. Comparison of Interventions in Pediatric Primary Vesicoureteral Reflux: A Network Meta-Analysis. INPLASY - International Platform of Registered Systematic Review and Meta-analysis Protocols, 2025. https://doi.org/10.37766/inplasy2025.3.0009.
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Aurell, Johanna, and Brian Gullett. Analysis of Emissions and Residue from Methods to Improve Combustion Efficiency of In Situ Oil Burns: Heat Transfer Technology: Flame Refluxer. Bureau of Safety and Environmental Enforcement, 2025. https://doi.org/10.70149/328391.
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