Academic literature on the topic 'Digestive system surgical procedures'
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Journal articles on the topic "Digestive system surgical procedures"
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Eisele, David W., C. Thomas Yarington, and Roger C. Lindeman. "Indications for the Tracheoesophageal Diversion Procedure and the Laryngotracheal Separation Procedure." Annals of Otology, Rhinology & Laryngology 97, no. 5 (September 1988): 471–75. http://dx.doi.org/10.1177/000348948809700507.
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Impaired protective function of the larynx can lead to intractable aspiration, a severe and potentially fatal disorder. If medical therapy fails to prevent intractable aspiration, surgical separation of the upper respiratory tract from the digestive tract is necessary to prevent recurrent contamination of the respiratory system in these patients. Two such surgical procedures are the tracheoesophageal diversion procedure and the laryngotracheal separation procedure. Our approach to patients with intractable aspiration and the indications for the use of these surgical procedures for the prevention of aspiration are discussed.
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Marochi, Bianca, Daniela Thaís Lorenzi Pereira, Luiza Manfroi Lattmann, Sthefany Mais, Arthur Nathan Luiz Ferreira Matos, Thais Mayumi Komatsu Fukuchi, Theodoro Busso Beck Neto, Maurício Chibata, and Francisco Emanuel de Almeida. "Epidemiological profile of postoperative digestive fistulas." JOURNAL OF SURGICAL AND CLINICAL RESEARCH 12, no. 2 (December 28, 2021): 77–88. http://dx.doi.org/10.20398/jscr.v12i2.25642.
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Background and objectives: Gastrointestinal fistulas are anomalous communications between the digestive system and other structures. This article presents the epidemiological profile of patients who developed postoperative abdominal fistulas and their outcomes. Methods: Cross-sectional study that evaluated surgical procedures done in a 25 week period that presented risks for fistulous formations. Were analyzed age, type of the surgery (elective or urgent), pre-existing risk factors, need for post-surgical intensive care unit, type of fistula, reoperations to the fistula treatment, and outcome (discharge or death). Results: There were 1785 abdominal surgical procedures, with a fistula incidence of 1.8%. Most of the patients who developed fistulas were over 60 years old (71.4%), and surgeries that resulted in fistulous complications were mainly urgent (75.0%), with the need for intensive care in 46.9%. The most frequent types of fistula were enteral (52.3%) and biliary (23.8%), and surgical treatment took place in 53.1% of cases. Late hospital discharge was predominant in these patients (40.6%), and the death rate was 3.1%. Discussion: These complications are common after abdominal surgery and require clinical attention. There is a correlation between the formation of the fistulas and urgent surgery procedures, directly impacting the length of hospital stay. Conclusion: The risk factors of fistula development are advanced age and the presence of malignant disease. They are more prevalent in urgent surgeries and patients were more likely to need reoperation and have a delay on discharge.
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Liu, Yan Fei, Xiao Yu Jiang, and Feng Ting Shen. "The Development of Minimally Invasive Surgery Simulation Training System Based on Virtual Reality Technology." Advanced Materials Research 403-408 (November 2011): 2300–2303. http://dx.doi.org/10.4028/www.scientific.net/amr.403-408.2300.
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Minimally Invasive Surgery Simulation Training System based on VR technology is comprised of intelligent 3-Dimensional images VR software system and simulated surgical instrument with high perceptibility and high precision force feedback characteristics. Real time VR and simulated instrument with force feedback interact with the operator in real time, achieve high immersive virtual surgery scenario, and allows trainees to perform and improve the whole surgical procedures. By applying synchronized network video server and real-time communication server based on TRP/RTCP, the instructor can view all details of an operator's surgical procedure by a network terminal, and provide real time technical guidance. The system covers minimally invasive surgeries of digestive, urinary, gynecological, thoracic, pediatric , etc.
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Antic, S., I. Dimitrijevic, V. Markovic, and J. Petrovic. "Diagnostic and therapeutic approaches to bleeding from lower parts of the digestive system." Acta chirurgica Iugoslavica 55, no. 1 (2008): 25–31. http://dx.doi.org/10.2298/aci0801025a.
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Bleeding from the gastrointestinal tract represents a relatively common diagnostic and therapeutic challenge in clinical work of gastroenterologists and surgeons. Bleeding from the lower GI (LGIB) is mostly caused by pathologic conditions of the colon, although the source of bleeding cannot always be exactly localized, thus rendering optimal and prompt therapy difficult. During two year period, at III department of the First Surgical Clinic in Belgrade, we performed 424 colonoscopies for LGIB. According to our results the exact diagnosis was established in about 76% (324 patients) showing a great similarity with the results of other published studies (varying between 74% and 89%). The most common causes of bleeding were diverticulosis (37.11%), polyposis (10.3%) and colorectal cancer (46.14%). Besides that we have mentioned some specific facts involving the diagnosis and treatment of LGIB with an accent on some rare conditions, like angiodysplasia. Review of the diagnostic procedures and treatment modalities of the LGIB is useful for everyone who meets with this type of pathology in clinical practice. The diagnostic approach and the surgical treatment of these patients may represent a great problem, since the planning of the operative procedure can be very difficult and with uncertain result. Based on the literary data and our experience we have tried to set the algorithm of the diagnostics and treatment of the LGIB.
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Castillo, Cristina, and Joaquin Hernández. "Ruminal Fistulation and Cannulation: A Necessary Procedure for the Advancement of Biotechnological Research in Ruminants." Animals 11, no. 7 (June 23, 2021): 1870. http://dx.doi.org/10.3390/ani11071870.
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Rumen content is a complex mixture of feed, water, fermentation products, and living organisms such as bacteria, fungi, and protozoa, which vary over time and with different feeds. As it is impossible to reproduce this complex system in the laboratory, surgical fistulation and cannulation of the rumen is a powerful tool for the study (in vivo and in situ) of the physiology and biochemistry of the ruminant digestive system. Rumen fistulation in cattle, sheep, and goats has been performed extensively to advance our understanding of digestive physiology and development, nutrient degradability, and rumen microbial populations. The literature reports several fistulation and cannulation procedures in ruminants, which is not the focus of this paper. However, this method questions the ethical principles that alter the opinions of certain animal groups or those opposed to animal experimentation. In this article, we analyze the objectives of fistulation and cannulation of ruminants and the care needed to ensure that the welfare of the animal is maintained at all times. Due to the ethical issues raised by this technique, several in vitro digestion methods for simulating ruminal fermentation have been developed. The most relevant ones are described in this article. Independently of the procedure, we want to point out that research carried out with animals is obliged by legislation to follow strict ethical protocols, following the well-being and health status of the animal at all times.
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Chu, Daniel, Po-Hung Chen, Steven Brant, Steven Miller, Natasha Turner, and Susan Hutfless. "P125 COMPLICATIONS FOLLOWING OUTPATIENT COLONOSCOPY IN INFLAMMATORY BOWEL DISEASE (IBD) PATIENTS." Inflammatory Bowel Diseases 26, Supplement_1 (January 2020): S24. http://dx.doi.org/10.1093/ibd/zaa010.055.
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Abstract Inflammatory Bowel Disease (IBD) patients have frequent complications after surgical procedures. Inflammation, immunosuppression and other factors that are more common in Crohn’s disease (CD) and ulcerative colitis (UC) may play a role in increasing their complication risk profile. IBD patients also undergo colonoscopy procedures more frequently than the general population. We aimed to identify risks of complications during or within 7 days of colonoscopy in IBD patients. Methods: Colonoscopy procedures performed between January 2016 through March 2019 in an outpatient setting (hospital or ambulatory surgical center) were identified from the United States Medicare fee-for-service claims. All Medicare beneficiaries were eligible. Colonoscopy was identified using the Healthcare Common Procedure Coding System (HCPCS) codes (‘45378’ through ‘45393’ and ‘45398’). A patient was considered to have Crohn’s disease (CD) if ICD-10-CM code K50.x was recorded; Ulcerative Colitis (UC) if ICD-10-CM code K51.x was recorded; and IBD if either was recorded on the date of the procedure. Complications recorded during the procedure included intestinal perforation (K63.1), gastrointestinal hemorrhage (K92.2), and “other post-procedural complications of the digestive system” (K91), including, but not limited to, post-gastrectomy syndrome, malabsorption, and intestinal obstruction. We examined these complications in procedures performed on IBD patients compared to the general population using logistic regression. We accounted for age, sex, race, year of colonoscopy, comorbidity score, and procedure discontinuation (identified by HCPCS modifier) in the analysis. A random effect for patient was included in the model to account for multiple procedures performed in the same patient during the study period, restricting patients from contributing multiple procedures. Results: There were 3,181,759 eligible procedures. There were 26,583 (0.84%) colonoscopy procedures in CD patients and 50,708 (1.59%) in UC patients. After accounting for other risk factors, CD and UC were more likely to have intestinal perforation than the non-IBD population (CD OR=2.7, 95% CI: 1.1–6.5; UC=OR 1.9, 95% CI 0.9–4.1), with CD having a statistically significant increase. Women were at greater risk for perforations (OR=1.3; 95% CI: 1.0–1.7). Conversely, IBD patients were less likely than non-IBD patients to have a complication recorded as “other” (CD OR=0.5; 95% CI: 0.2–0.9; UC OR=0.5; 95% CI:0.3–0.8). Older age at colonoscopy (OR=1.02, 95% CI 1.01–1.03), six or more comorbidities (OR=1.9, 95% CI: 1.5–2.3) and procedure discontinuation (OR=2.0, 95% CI 1.2–3.4) were associated with complications regardless of IBD status. Conclusion: IBD was associated with higher risk of perforation, and lower risk of other postprocedural complications in outpatient colonoscopy procedures.
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Ahmed, Shakera, Anwarul Karim, Tanvir Kabir Chowdhury, Orindom Shing Pulock, Nowrin Tamanna, Mastura Akter, Puja Biswas, et al. "Patients’ characteristics and 30-day mortality for those undergoing elective surgeries during the COVID-19 pandemic in Bangladesh." PLOS ONE 18, no. 8 (August 14, 2023): e0289878. http://dx.doi.org/10.1371/journal.pone.0289878.
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Background The COVID-19 pandemic has significantly impacted the surgical practice throughout the world, including elective surgical care. This study investigated the characteristics of patients undergoing elective surgery, the prevalence of COVID-19 infection, the surgical procedures performed, and 30-day mortality in general and pediatric surgical settings in selected tertiary-level hospitals in Bangladesh from November 2020 to August 2021. Methods This serial cross-sectional study included 264 patients scheduled for elective surgeries during the study period. All patients underwent COVID-19 real-time polymerase chain reaction (RT-PCR) testing within 24 hours before surgery. Data on age, sex, common comorbidities, surgical procedures, and 30-day mortality were collected and analyzed. Furthermore, comparisons were made between COVID-19 positive and negative patients. Results The prevalence of COVID-19 infection among patients was 10.6%. Older age, a history of major surgery within the last three months, hypertension, and diabetes mellitus were significantly associated with COVID-19 infection. All COVID-19-negative patients underwent surgery, while only 46.4% of COVID-19-positive patients underwent surgery. The most common surgical procedures were related to the digestive system, breast, and urinary system. Only one patient (0.4%) died within 30 days after surgery among the COVID-19-negative patients, whereas two patients (7.1%) died among the COVID-19-positive patients: one before surgery and one after surgery. Conclusions This study provides valuable insights into the characteristics, burden of COVID-19 infection, and 30-day mortality of patients undergoing elective surgery in tertiary care centers in Bangladesh during the pandemic.
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Antioch, Kathryn M., and Xichuan Zhang. "Using endoscopic procedures forAN-DRG assignment:Australia leads the way." Australian Health Review 21, no. 4 (1998): 80. http://dx.doi.org/10.1071/ah980080.
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The study reported in this article sought to develop Australian National Diagnosis Related Groups (AN-DRGs) using endoscopic procedures in Major Diagnostic Category (MDC) 6 (Digestive System) and MDC 7 (Hepatobiliary System and Pancreas) through statistical analysis of the Australian Casemix Clinical Committee's recommendations. Five ANOVA were undertaken on final recommendations for gastroscopy and colonoscopy in MDC 6. The Reduction in Variance (RIV) for the AN-DRGs in version 3 relative to version 2 increased by up to 14.6%, representing RIV of between 25.28% to 32.30%. For all ANOVAs, F>100, alpha < .0001, Coefficient of Variation (CV) was generally lower in version 3 by between 0.4% to 22.9%, except for AN-DRGs for other gastroscopy for major gastro-intestinal disease, which increased by 8.7%. Two ANOVA for Endoscopic Retrograde Cholangio-pancreatography Procedures (ERCP) recommendations resulted in RIV of up to 18.67%, F>100, alpha <- .0001 and CV up to 0.8091. MDC 6, in AN-DRG versions 3 and 3.1, has 11 AN-DRGs following the surgical hierarchy involving gastroscopy and colonoscopy. Patients assigned will not have an operating room procedure; they will have anon-operating room procedure that is either a complex therapeutic or other(diagnostic or therapeutic) procedure. Similar AN-DRGs are in MDC 7 for ERCP. Version 3.1 has expanded the definition of Common Bile Duct Exploration (CDE) to include ERCP. There is no separate AN-DRG for laparoscopy cholecystectomy.
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Hasdemir, Oğuz, Cavit Çöl, Oktay Büyükaşık, and Nihat Akçayöz. "Results after radical surgical treatment for advanced carcinoma of hypopharynx." Open Medicine 4, no. 4 (December 1, 2009): 512–18. http://dx.doi.org/10.2478/s11536-009-0017-6.
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AbstractThe aim of the study was to investigate patients with hypopharyngeal cancer. And this study focuses on a case series with hypopharynx cancer and cervical oesophageal cancer invading the hypopharynx. There were 13 cases over a period of 8 years, treated with pharyngo-laryngo-esophagectomy (PLE) and cervical lymph node dissection. In 10 of the patients, reconstruction was done with gastric pull-up (GP). In 3 of the 10 patients gastric reconstruction was added to aid in pyloric drainage (2 pyloromyotomy and 1 pyloroplasty) but the remaining 7 patients did not receive such procedures. The reconstruction of the digestive system after PLE is still a matter of debate. GP method is the most frequently preferred method for reconstruction. We believe that a more important problem than gastric drainage is the reflux of the gastric content and pyloric drainage which will not have a positive effect for solving this clinical situation. But we need bigger series for analyze of this specific condition.
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Sánchez-Margallo, Francisco Miguel, and Juan A. Sánchez-Margallo. "Assessment of Postural Ergonomics and Surgical Performance in Laparoendoscopic Single-Site Surgery Using a Handheld Robotic Device." Surgical Innovation 25, no. 3 (February 26, 2018): 208–17. http://dx.doi.org/10.1177/1553350618759768.
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Purpose. New laparoscopic devices are being continuously developed to overcome some of the technical and ergonomic limitations of laparoendoscopic single-site (LESS) surgery. This study aims to assess the surgeon’s surgical performance and ergonomics during the use of a handheld, robotic-driven, articulating laparoscopic instrument during LESS surgery. Methods. Seven right-handed experienced surgeons took part in this study. A set of basic suturing tasks and digestive and urological procedures in a porcine model were performed. Surgeons used both a conventional laparoscopic needle holder and a robotic device. The learning curve, execution time, and precision using the surgical needle were assessed. The surgeon’s posture was analyzed using a motion tracking system and a data glove. Results. After the training period, execution time on the intracorporeal suturing was significantly shorter using the conventional needle holder. The precision was higher using the conventional instrument in the horizontal plane, but the number of attempts to position the needle was lower using the robotic device (1.625 ± 0.250 vs 1.188 ± 0.375 attempts). The extension of the elbow (134.681 ± 14.35° vs 120.631 ± 13.134°) and the flexion of the shoulder (26.122 ± 7.411° vs 18.475 ± 14.166°) were significantly lower using the robotic instrument. The wrist posture using the robotic device was ergonomically acceptable during both surgical procedures. Conclusions. Results show a positive learning curve in ergonomics and surgical performance using the robotic instrument during LESS surgery. This instrument improves the surgeon’s body posture and the needle positioning errors. The use of the robotic instrument is feasible and safe during LESS partial nephrectomy and sigmoidectomy procedures.
Dissertations / Theses on the topic "Digestive system surgical procedures"
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Håkanson, Bengt. "Studies of preoperative evaluation and surgical procedures for gastroesophageal reflux disease /." Stockholm, 2006. http://diss.kib.ki.se/2006/91-7357-022-2/.
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Kjellin, Ann. "Foregut motility disorders : a clinical and experimental study /." Stockholm, 2004. http://diss.kib.ki.se/2004/91-7140-026-5/.
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Kondo, André. "Abordagem endoscópica comparada à cirúrgica no tratamento do câncer gástrico precoce: revisão sistemática e metanálises." Universidade de São Paulo, 2016. http://www.teses.usp.br/teses/disponiveis/5/5168/tde-06022017-105830/.
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Os desfechos clínicos e oncológicos dos pacientes submetidos à ressecção endoscópica do câncer gástrico precoce (CGP), considerando os critérios de indicação, comparados à cirurgia, não foram relatados em revisões sistemáticas. A pesquisa foi desenvolvida para estabelecer os desfechos de curto e longo prazos da ressecção endoscópica comparada à cirurgia no tratamento do CGP, elevando as informações para o nível de evidência 2a, melhor respaldando a prática clínica. A revisão sistemática com metanálises foi procedida utilizando-se as bases Medline, Embase, Cochrane, LILACS, Scopus e CINAHL. Onze coortes retrospectivas foram selecionadas para análise qualitativa e quantitativa. Todos os estudos incluem pacientes com CGP e comparam os desfechos nos dois braços. Os dados envolveram 2654 pacientes que preenchiam os critérios absolutos ou expandidos para ressecção endoscópica. Diferentes modalidades de tratamento endoscópico foram avaliadas, principalmente os procedimentos de ressecção, como endoscopic mucosal resection (EMR) e endoscopic submucosal dissection (ESD). As informações basearam-se nas características dos participantes, critérios de inclusão e exclusão, tipos de intervenções e desfechos (diferentes taxas de sobrevida, eventos adversos, ressecção completa, recorrência e mortalidade). As análises dos riscos absolutos dos desfechos foram feitas com o software RevMan, computando-se as diferenças de risco (DR) das variáveis dicotômicas. Dados de DR e intervalo de confiança de 95% (IC) foram calculados utilizando-se o teste de Mantel-Haenszel e a inconsistência foi qualificada e reportada em ?2 e método Higgins (I2). A análise de sensibilidade foi feita quando a heterogeneidade era maior que 50%. Todas as análises basearam-se inicialmente no modelo de efeito fixo. Dados de sobrevida de 3 anos estavam disponíveis em seis estudos (n = 1197). Não houve DR após os dois tratamentos (DR = 0,01, IC 95% = -0,02 a 0,05). A sobrevida de 5 anos (n = 2310) não demonstrou diferença significativa entre os grupos analisados (DR = 0,01, IC 95% = -0,01 a 0,03). A avaliação de 551 pacientes não evidenciou desigualdade na sobrevida de 10 anos entre as diferentes abordagens (DR = -0,02, IC 95% = -0,15 a 0,10). Dados de complicação estavam presentes em oito estudos (n = 2439), e diferença significativa foi detectada (DR = -0,08, IC 95% = -0,10 a -0,05), demonstrando melhores resultados com a endoscopia. As taxas de ressecção completa foram analisadas em 536 pacientes. Evidenciou-se diferença significativa entre o tratamento endoscópico e cirúrgico (DR = -0,13, IC 95% = -0,17 a -0,09), validando melhores resultados no último grupo. A recorrência foi avaliada em cinco pesquisas (n = 1331) e não houve diferença entre as duas formas de terapêutica (DR = 0,01, IC 95% = -0,00 a 0,02). As taxas de mortalidade foram obtidas de quatro estudos (n = 1107), e não se evidenciou diferença entre os grupos envolvidos (DR = -0,01, IC 95% = -0,02 a 0,00). Conclui-se que as taxas de sobrevida de 3, 5 e 10 anos, recorrência e mortalidade são semelhantes em ambos os grupos. Considerando-se as taxas de complicação, a abordagem endoscópica confere resultados mais apropriados e, analisando-se as taxas de ressecção completa, ela é inferior à cirurgiaClinical and oncological outcomes of endoscopic resection of early gastric cancer (EGC), considering the indication criteria, compared to surgery, have not been reported in systematic reviews. To address the short- and long-term outcomes of endoscopic resection compared to surgery in the treatment of EGC, a systematic review was performed, establishing the available data to an unpublished 2a strength of evidence, better handling clinical practice. A systematic review and meta-analysis using Medline, Embase, Cochrane, LILACS, Scopus and CINAHL databases were done. Eleven retrospective cohort studies were selected to quantitative and qualitative synthesis. All studies included patients diagnosed with EGC that compared outcomes considering endoscopic treatment and surgery. The included records involved 2654 patients with EGC that filled the standard or expanded indications for endoscopic resection. Different endoscopic treatment modalities were analyzed, mainly mucosal resection procedures such as endoscopic mucosal resection (EMR) and endoscopic submucosal dissection (ESD), compared to surgery. Information of the selected studies was extracted on characteristics of trial participants, inclusion and exclusion criteria, types of interventions and outcomes (different survival rates, adverse events, complete resection, recurrence and mortality rates). The analysis of the absolute risks of the outcomes was performed using the software RevMan, by computing risk differences (RD) of dichotomous variables. Data on RD and 95% confidence interval (CI) for each outcome were calculated using the Mantel-Haenszel test and inconsistency was qualified and reported in X2 and the Higgins method (I2). Sensitivity analysis was performed when heterogeneity was higher than 50%. All pooled analyses were initially based on fixed-effects model. Three-year survival data were available for six studies (n = 1197). There were no RD in 3-year survival data after endoscopic and surgical treatment of EGC (RD = 0.01, 95% CI = -0.02 to 0.05). Five-year survival data (n = 2310) showed no evidence of a difference between the two groups (RD = 0.01, 95% CI = -0.01 to 0.03). The data analysis, in 551 patients, showed no difference in 10-year survival rates between the approaches (RD = -0.02 and 95% CI = -0.15 to 0.10). Complication data were identified in eight studies (n = 2439). A significant difference was detected (RD = -0.08, 95% CI = -0.10 to -0.05), demonstrating better results with endoscopic approach. Complete resection data was analyzed in 536 patients. It showed significant difference in complete resection rates between endoscopic and surgical treatment of EGC (RD = -0.13, 95% CI = -0.17 to -0.09), exhibiting improved results in the surgical group. Recurrence data were analyzed in five studies (n = 1331) and there was no difference between the approaches (RD = 0.01, 95% CI = -0.00 to 0.02). Mortality data were obtained in four studies (n = 1107), and there was no difference between treatment modalities (RD = -0.01, 95% CI = -0.02 to 0.00). This systematic review concludes that 3-, 5- and 10-year survival, recurrence and mortality rates are similar for both groups. Considering procedure-related complication rates, endoscopic approach achieves significantly better results and, analyzing complete resection data, it is considered worse than surgery
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Neder, Joel. "Estudo crítico da hernioplastia pela técnica de Bassini modificada quanto aos resultados mediatos." Universidade de São Paulo, 2003. http://www.teses.usp.br/teses/disponiveis/5/5154/tde-08092014-161414/.
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No presente estudo, 30 pacientes, do sexo masculino com idade mediana de 29 anos, portadores de hérnias inguinais / inguino-escrotais, unilaterais, indiretas e primárias, sem encarceramento ou estrangulamento, foram submetidos à hernioplastia inguinal, por meio de inguinotomia, sob raqui-anestesia em regime de internação hospitalar. A técnica de correção utilizada foi a de Bassini modificada, sendo que estas modificações repousam no tipo da incisão, abordagem da fáscia transversalis e no reforço da parede posterior do canal inguinal. Os objetivos foram os de avaliar os resultados do pós-operatório mediato quanto aos eventos: intensidade e duração da dor pós-operatória e o tempo de retorno às atividades normais, estabelecendo assim a duração maior ou menor do período de convalescença. Das hérnias operadas 33,33% e 66,67% foram classificadas no intra-operatório como tipos I e II de Nyhus, respectivamente. A duração da cirurgia variou entre 45 e 85 minutos, com média de 66,46 minutos e mediana de 66,5 minutos. A permanência hospitalar foi menor que 24 horas. O índice de mortalidade foi nulo e o seguimento foi feito no 10º e 30° dias de pós-operatório. A intensidade média da dor pós-operatória atingiu seu pico máximo no 1º dia, alcançando 2,93 na escala analógica decimal, sendo que a partir do 5° dia de pós-operatório se tornou insignificante. O retorno às atividades habituais e sociais se deu em um período médio de 5,34 dias. O tempo de retorno ao trabalho alcançou a média de 11,23 dias e mediana de 5 dias. Observou-se complicação leve em dois pacientes (6,67%), que apresentaram edema de bolsa escrotal de rápida resolução. Não se observou complicações infecciosas apesar do não uso de antimicrobianos. A análise dos dados obtidos permite concluir que o procedimento é exeqüível, com boa aceitação por parte dos pacientes, apresentando resultados comparáveis aos obtidos na literaturaIn the present study, 30 patients, of the male sex, with an average age of 29, victims of inguinal hernias/ inguino-scrotum, unilateral, indirect and primaries, without confinement or strangulation, were submitted to inguinal hernioplasty, thru inguinotomy, under rachianesthesia on a regimen as hospital in--patients. The correction technique used was the modified- Bassini, since these modifications lie in the kind of incision, approaching of the fascia transversalis and in the reinforcement of the posterior wall of the inguinal duct. The purposes were of evaluating the mediate post-operative results as to the events: intensity and duration of the post-operative pain in the period of time of return to the normal activities, thus determining the longer or shorter duration of the recovery period. Among the operated hernias 33.33% and 66.67% they were classified in the intra-operative as types I and II of Nyhus, respectively. The duration of the surgery varied between 45 and 85 minutes, with an average of 66.46 minutes and median of 66.5 minutes. The in-patients stay in the hospital was less than 24 hours. The mortality rate was null and the follow up was made on the 10th and 30th days of the post operative. The average intensity of the post-operative pain reached its appex on the 1st day, reaching 2.93 in the decimal analogical scale, and as of the 5th day of the post-operative it became insignificant. The return both to the usual and social activities happened in an average period of time of 5.34 days. The period of time of returning to work reached an average of 11.23 days and a median of 5 days. A slight complication was observed in two patients (6.67%), who had edema in the scrotum pouch of fast solution. No infectious complications were detected in spite of not using any anti-microbians. The analysis of the data obtained allow to conclude that the procedure is feasible, with good approval on the part of the patients, presenting results comparable to the ones obtained in the literature
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Hoang, Chau Maggie. "National Trends in Elective Ileal Pouch-Anal Anastomosis for Ulcerative Colitis." eScholarship@UMMS, 2018. https://escholarship.umassmed.edu/gsbs_diss/976.
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Background: Recent national trends and distribution of ileal pouch-anal anastomosis (IPAA) procedures for patients with ulcerative colitis (UC) are unknown. We examined the frequency of use of elective IPAA procedures among patients with UC and the distribution of IPAA procedures across more than 140 U.S. academic medical centers and their affiliates.
Methods: Data were obtained from the University HealthSystem Consortium for patients with a primary diagnosis of UC admitted electively between 2012 and 2015.
Results: The mean age of the study population (n=6,875) was 43 years and 57% were men. Among these, one-third (n=2,307) underwent an IPAA, while two-thirds (n=4,568) underwent colectomy, proctectomy, proctocolectomy or other procedures. The proportion of IPAA cases among all elective admissions was relatively stable at 33-35% during the years under study. A total of 131 hospitals, out of 279 hospitals participating in the UHC, performed IPAA. The median number of IPAA cases performed annually was 1.9 [IQR 0.8 – 4.3]. Nearly one half (48%) of these cases were performed by the top ten hospitals. Overall, only a total of 30 centers performed ³ five elective IPAA cases annually.
Conclusions: Although the frequency of elective IPAA surgery in recent years has been stable, nearly one half of all IPAA cases was performed at ten hospitals. The concentration of IPAA cases at high-volume centers, and the steady number of cases performed annually, have potential implications for fellowship training, patient clinical outcomes and access to care.
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Chang, Serena Soyoung Yunmee. "Toll-Like Receptors: Target of Hepatitis C Virus: A Dissertation." eScholarship@UMMS, 2008. https://escholarship.umassmed.edu/gsbs_diss/386.
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Hepatitis C Virus (HCV) is the primary cause of liver transplantation due to its chronic nature in up to eighty percent of infected cases. Around 3 percent of the world’s population is infected with HCV. Treatment for HCV is a combined Ribavirin and interferon-α (IFN-α) therapy effective in only fifty to eighty percent of patients depending on HCV genotype. The growing health concern with this disease is the lack of a cure despite liver transplantation. HCV targets hepatocytes, liver cells, but is not cytolytic. HCV has been shown to induce end stage liver disease through sustained inflammation from the host’s immune system in the liver. One of the key dilemmas in HCV research and the search for fully effective treatments or vaccines is the lack of animal models. HCV infectivity and disease is limited to primates, most specifically to humans, which cannot be fully replicated in any other living being. The mechanisms for HCV evasion or activation of the immune system are complex, many and discoveries within this field are crucial to overcoming this destructive hepatic infection.
Toll-like receptors (TLR) are cellular activators of the innate immune system that have been a target of HCV. Activated TLRs trigger both the inflammatory and anti-viral pathways to produce inflammatory cytokines and interferons. HCV proteins have been reported to activate a number of TLRs in a variety of cell types. In order to identify possible targets of HCV within the TLR family, we first characterized TLR presence and function in both human hepatic carcinoma cell lines and purified primary human hepatocytes. RNA from TLRs 1-10 was observed to varying degrees in both the hepatoma cell lines and the primary hepatocytes. We show the extracellular and/or intracellular presence of TLR2, TLR1, TLR3 and TLR7 proteins in hepatoma cell lines. TLR3 and TLR7 are located within the endosome and recognize viral RNA products. We recently reported that TLR2-mediated innate immune signaling pathways are activated by HCV core and NS3 proteins. TLR2 activation requires homo- or heterodimerization with either TLR1 or TLR6. We show NF-κB activation in hepatoma cells by TLR2/1, TLR2/6 ligand and HCV protein stimulation. In primary hepatocytes, HCV proteins induced both IL-8 and IL-6 production. We also show that primary hepatocytes initiate a Type 1 IFN response in addition to IL-8 and IL-6 production upon stimulation with a TLR7/8 ligand. Human hepatoma and primary hepatocytes are responsive to TLR2, TLR1, TLR6, TLR7/8 ligands and HCV proteins. Activation of these TLRs may contribute to the inflammatory mediated destruction caused by HCV or could be targets of HCV contributing to its immune evasion.
We found previously that hepatoma cells and primary hepatocytes are responsive to TLR2 ligands and HCV proteins. We also reported that TLR2 is activated by HCV proteins. Here we aimed to determine whether TLR2 coreceptors participated in cellular activation by HCV core or NS3 proteins. By designing siRNAs targeted to TLR2, TLR1 and TLR6, we showed that knockdown of each of these receptors impairs pro- and anti-inflammatory cytokine activation by TLR-specific ligands as well as by HCV core and NS3 proteins in Human Embryonic Kidney cells (HEK/TLR2) and in primary human macrophages. We found that HCV core and NS3 proteins induced TNF-α and IL-10 production in human monocyte-derived macrophages, which was impaired by TLR2, TLR1 and TLR6 knockdown. Contrary to human data, results from TLR2, TLR1 or TLR6 knockout mice indicated that the absence of TLR2 and its coreceptor TLR6, but not TLR1, prevented the HCV core and NS3 protein-induced peritoneal macrophage activation. TLR2 may utilize both TLR1 and TLR6 coreceptors for HCV core- and NS3-mediated activation of macrophages and innate immunity in humans. These results imply that multiple pattern recognition receptors could participate in cellular activation by HCV proteins contributing to inflammatory disease.
Two critical factors in chronic HCV infection are inflammatory disease and immune evasion. We have demonstrated that TLR2 and its co-receptors play a role in inflammatory-mediated induction via HCV NS3 and core administration. It has recently been shown that HCV targets the TLR3 pathway to aid in immune evasion. TLR3 is only one of four viral recognition receptors located within the endosome and it is plausible that HCV may target others. We hypothesized that HCV infection may interfere with the expression and function of TLR7, a sensor of single stranded RNA. Investigating any effect on TLR7 by HCV may reveal a new mechanism for HCV immune evasion. Low levels of both TLR7 mRNA and protein were measured in HCV replicating cells compared to control cells while reducing HCV infection with either IFNα or restrictive culture conditions restored the decreased TLR7 expression. Downstream of the TLR7 pathway, an increased baseline IRF7 nuclear translocation was observed in HCV replicating cells compared to controls. Stimulation with a TLR7 ligand, R837, resulted in significant IRF7 nuclear translocation in control cells. In contrast, HCV replicating cells showed impaired IRF7 activation. Use of RNA polymerase inhibitors on hepatoma cells, control and HCV replicating, revealed a shorter TLR7 half life in HCV replicating cells compared to control cells which was not seen in TLR5 mRNA. These data suggest that reduced TLR7 expression, due to RNA instability, directly correlates with HCV replication and results in impaired TLR7-induced IRF7-mediated cell activation.
In conclusion, Hepatitis C Virus manipulates specific Toll-like receptors’ expression and their signaling pathways to induce cytokine production. HCV utilizes surface receptors TLR2 and its co-receptors which once activated could contribute to inflammatory disease by production of inflammatory cytokines and possibly immune evasion. HCV down-regulates TLR7, a viral recognition receptor, by decreasing mRNA stability which could facilitate evasion of host immune surveillance.
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Siqueira, Pablo Rodrigo de. "Sutura endoscópica para perfuração gástrica nos procedimentos cirúrgicos endoscópicos translumenais por orifício natural, utilizando dispositivo T-Tag associado à câmara plástica protetora: factibilidade e resultados - estudo experimental." Universidade de São Paulo, 2014. http://www.teses.usp.br/teses/disponiveis/5/5132/tde-14012015-145945/.
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A perfuração gástrica por endoscopia é a consequência de alguns de seus procedimentos, e atualmente, com o advento das cirurgias endoscópicas translumenais por orifícios naturais, um meio de manipulação dos órgãos abdominais. Esse é o motivo pelo qual os endoscopistas estão procurando um reparo endoscópico seguro. O objetivo foi avaliar a factibilidade e os resultados do fechamento da abertura gástrica similar àquelas realizadas nos procedimentos cirúrgicos endoscópicos translumenais por orifícios naturais utilizando-se o T-Tag associado à câmara plástica protetora. Sob anestesia geral, dez porcos Landrace foram submetidos a uma perfuração gástrica calibrada em 18 mm de diâmetro. A abertura foi fechada pelo novo método apresentado, composto de fios cirúrgicos conectados em uma âncora metálica (T-Tag) posicionados pela parede gástrica através de uma agulha. Uma câmara protetora plástica foi adaptada à extremidade distal do endoscópio para proteger os órgãos abdominais adjacentes da punção da agulha fora do estômago. Seis dispositivos T-Tag foram posicionados na maioria dos casos e os fios atados com um apertador de nó metálico endoscópico formando três pontos de sutura. O teste de vazamento foi realizado com uma pinça endoscópica e distensão da câmara gástrica com ar. Os animais receberam líquidos no mesmo dia do procedimento. Uma dose de antibiótico diária por dois dias foi administrada. Nenhuma complicação foi detectada no período pós-operatório. Um mês depois, a endoscopia revelou a presença de cicatriz em todos os animais, e a maioria apresentava materiais da sutura aderidos à superfície mucosa da região. A região do antro gástrico apresentava poucas aderências identificadas na laparotomia realizada no mesmo momento. O reparo endoscópico utilizando o T-Tag e a câmara protetora plástica é factível, fácil de ser realizada e seguro. São necessários estudos adicionais para mostrar o real valor desse tipo de procedimentoThe endoscopic gastric perforation is a consequence of some endoscopic procedures and now a way to manage abdominal organs. This is the reason why endoscopists are studying a safe endoscopic repair. The objective was to evaluate feasibility and results of the gastric opening closure similar to those performed in natural orifice translumenal endoscopic surgery procedures using T-Tag associated with the plastic protection chamber. Ten Landrace pigs underwent a gastric perforation of 1.8 cm in diameter under general anesthesia. The opening was repaired with stitch assembled in a T-Tag anchor placed through the gastric wall with a needle. A plastic transparent chamber, adapted to the endoscope tip protected the abdominal organs from the needle puncture outside the stomach. Six T-Tags were placed in most cases and the stitches were tied with a metallic tie-knot, forming three sutures. The leakage test was performed with a forceps and by air distention. The animals received liquids in the same operative day. One daily shot antibiotic during two days was used. No complication was detected in the postoperative course. One month later the endoscopy revealed a scar in all animals, and the majority of these with suture material. The antral anterior gastric wall was clear with few adhesions in the laparotomy performed in the same time. The endoscopic repair using T-Tag and a protector chamber is feasible, easy to perform and safe. Further studies are needed to show the real value of this kind of procedure
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Araújo, Marleny Novaes Figueiredo de. "Tratamento cirúrgico da doença de Crohn:estudo comparativo entre desfechos precoses após laparoscopia primária, laparoscopia repetida ou laparoscopia após laparotomia na recidiva." Universidade de São Paulo, 2017. http://www.teses.usp.br/teses/disponiveis/5/5168/tde-11052017-160736/.
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Introdução: o uso da videolaparoscopia na doença de Crohn (DC) teve seu início nos anos 90, com ressalvas à possível dificuldade técnica que a DC complexa ou recorrente poderia impor à sua realização. Diversos estudos ao longo das décadas de 90 e 2000 mostraram ser a mesma factível, quando comparada à laparoscopia para DC primária, além de demonstrarem maior benefício da laparoscopia comparada à cirurgia aberta/convencional nos casos de DC recorrente. Entretanto, não houve estudos sobre resultados cirúrgicos após repetidas ressecções laparoscópicas. Objetivo: avaliar resultados pós-operatórios em curto prazo no tratamento da DC, comparando pacientes submetidos a uma segunda ressecção intestinal laparoscópica e pacientes sem cirurgia prévia. Além disso, comparar os mesmos resultados pós-operatórios entre pacientes submetidos a uma segunda ressecção intestinal laparoscópica e pacientes sendo submetidos a laparoscopia para DC e história prévia de ressecção intestinal prévia por laparotomia. Materiais e métodos: foi realizado análise retrospectiva a partir de base de dados mantida prospectivamente de pacientes submetidos a laparoscopia para tratamento da DC no Hospital Beaujon, França, entre 2005 e 2010. Os desfechos analisados foram: conversão para cirurgia aberta, tempo operatório, taxa de enterotomias inadvertidas no intra-operatório, morbidade, necessidade de reintervenção (cirúrgica ou radiológica) e tempo total de hospitalização. Resultados: foram analisados 18 pacientes com laparoscopia prévia (grupo A), 90 pacientes sem cirurgia prévia (grupo B) e 26 pacientes com laparotomia prévia (grupo C). Em nossa análise principal, comparando os grupos A e B, vemos grupos semelhantes em relação a dados demográficos, exceto maior número de casos complexos no grupo A (83,3 vs 46,7%; p=0,005) e tipo de operação realizada (p < 0,001). Quanto aos resultados, apenas o tempo operatório foi significativamente mais longo no grupo A (180 minutos vs. 150 minutos; p=0,013). A taxa de conversão, enterotomia inadvertida, morbidade, necessidade de reintervenção e tempo de hospitalização foram similares entre os grupos. Em nossa segunda análise, entre os grupos A e C, não houve diferença significativa quanto aos mesmos resultados analisados. Conclusão: apesar de um maior tempo operatório, uma segunda ressecção laparoscópica mantém os mesmos benefícios vistos em uma ressecção intestinal laparoscópica primária. Os mesmos benefícios são vistos quando os resultados são comparados com pacientes submetidos previamente a uma ressecção intestinal por laparotomia, em especial quando nas mãos de equipe experienteIntroduction: the use of laparoscopy in Crohn\'s disease (CD) had its beginning in the 90s, despite the possible challenge of technical difficulty that the complex or recurrent CD could impose to its realization. Numerous studies over the decades of 90 and 2000 showed laparoscopy in recurrent CD to be feasible compared to laparoscopy for primary CD, and have also shown the benefits of laparoscopic compared to open conventional surgery in patients with recurrent CD. However, there were no studies on surgical outcomes after repeated laparoscopic resections. Objective: 1. to evaluate postoperative short-term results regarding surgical treatment of CD, comparing patients who underwent a second laparoscopic bowel resection and patients without prior surgery. 2. to compare the same postoperative results among patients who underwent a second laparoscopic bowel resection patients and patients undergoing laparoscopic resection with history of prior intestinal resection by laparotomy. Materials and methods: a retrospective analysis from prospectively maintained database of patients undergoing laparoscopy for treatment of CD in Hospital Beaujon, France, between 2005 and 2010, was performed. The outcomes analyzed were: conversion to open surgery, operative time, intraoperative inadvertent enterotomy, morbidity, need for re-intervention (surgical or radiological) and length of hospitalization. Results: 18 patients with previous laparoscopy (group A), 90 patients without previous surgery (group B) and 26 patients with previous laparotomy (group C) were included. In our main analysis, comparing the groups A and B, groups were similar in respect to demographic data, except number of complex cases in group A (83.3 vs 46.7%; p = 0.005) and type of surgery performed (p < 0.001). As for the results, operative time was significantly longer in group A (180 minutes vs. 150 minutes; p = 0.013). Conversion rate, inadvertent enterotomy, morbidity, need for re-intervention and hospital stay were similar between groups. In our second analysis, between groups A and C, there was no significant difference between groups regarding the same variables. Conclusion. In spite of a longer operative time, a second laparoscopic resection guarantees the same benefits seen in a primary laparoscopic bowel resection. The same benefits are kept compared to patients who underwent prior bowel resection by laparotomy, especially when in the hands of experienced staff
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Vianna, Rodrigo Martinez de Mello. "Resultados do transplante multivisceral na trombose porto-mesentérica difusa." Universidade de São Paulo, 2014. http://www.teses.usp.br/teses/disponiveis/5/5168/tde-26022015-150342/.
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Objetivo: Avaliar o prognóstico clínico do transplante multivisceral (TMV) na vigência de trombose difusa do sistema porto-mesentérico. Introdução. O transplante hepático (TH) na vigência de cirrose e trombose difusa do sistema porto-mesentérico é controverso e muitas vezes contraindicado em muitos centros de transplante hepático. O transplante hepático utilizando técnicas alternativas como a hemitransposição portocava falha na eliminação de complicações provenientes da hipertensão portal. O TMV substitui o fígado e todo o sistema venoso porto-mesentérico. Métodos: Uma base de dados de pacientes submetidos a transplante intestinal foi mantida com análise prospectiva de resultados. O diagnóstico de trombose difusa do sistema porto-mesentérico foi estabelecido através de tomografia abdominal em fases arterial e venosa, ou por ressonância magnética com reconstrução venosa. Resultados: Vinte e cinco pacientes com trombose de porta, estádio IV, foram submetidos ao TMV. Onze pacientes receberam transplante renal concomitante. Rejeição aguda confirmada por biópsia foi notada em cinco pacientes, que foram tratados com sucesso. Com um seguimento médio de 2,8 anos, a sobrevida de enxertos e pacientes foi de 80%, 72% e 72%, respectivamente. Até a presente data, todos os sobreviventes estão com boa função de enxerto e sem nenhum sintoma ou evidência de hipertensão portal. Conclusão: O TMV deve ser considerado como opção para o tratamento de pacientes com trombose portomesentérica difusa. O transplante multivisceral é o único procedimento que reverte completamente a hipertensão portal e a doença de base com uma sobrevida superior ao TH com reconstruções vasculares alternativasObjective: To evaluate the clinical outcomes of multivisceral transplantation (MVT) in the setting of diffuse thrombosis of the portomesenteric venous system. Background: Liver transplantation (LT) in the face of cirrhosis and diffuse portomesenteric thrombosis (DPMT) is controversial and contraindicated in many transplant centers. LT using alternative techniques such as portocaval hemitransposition fails to eliminate complications of portal hypertension. MVT replaces the liver and the thrombosed portomesenteric system. Methods: A database of intestinal transplant patients was maintained with prospective analysis of outcomes. The diagnosis of diffuse PMT was established with dual-phase abdominal computed tomography or magnetic resonance imaging with venous reconstruction. Results: Twentyfive patients with grade IV DPMT received 25 MVT. Eleven patients underwent simultaneous cadaveric kidney transplantation. Biopsy proven acute cellular rejection was noted in 5 recipients, which was treated successfully. With a median follow-up of 2.8 years, patient and graft survival were 80%, 72%, and 72% at 1, 3, and 5 years, respectively. To date, all survivors have good graft function without any signs of residual/recurrent features of portal hypertension. Conclusions: MVT can be considered as an option for the treatment of patients with diffuse DPMT. MVT is the only procedure that completely reverses portal hypertension and addresses the primary disease, while achieving superior survival results in comparison to the alternative vascular reconstructions
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Collins, Courtney E. "Gender Differences in Choice of Procedure and Case Fatality Rate for Elderly Patients with Acute Cholecystitis: A Masters Thesis." eScholarship@UMMS, 2015. http://escholarship.umassmed.edu/gsbs_diss/806.
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Background: Treatment decisions for elderly patients with gallbladder pathology are complex. Little is known about what factors go into treatment decisions in this population. We used Medicare data to examine gender-based differences in the use of cholecystectomy vs. cholecystostomy tube placement in elderly patients with acute cholecystitis.
Methods: We queried a 5% random sample of Medicare data (2009-2011) for patients >65 admitted for acute cholecystitis (by ICD-9 code) who subsequently underwent a cholecystectomy and/or cholecystostomy tube placement. Demographic information (age, race), clinical characteristics (Elixhauser index, presence of biliary pathology), and hospital outcomes (case fatality rate, length of stay, need for ICU care) were compared by gender. A multivariable model was used to examine predictors of cholecystectomy vs. cholecystostomy tube placement.
Results: Of 4063 patients admitted with cholecystitis undergoing the procedures of interest just over half (58%) were women. The majority of patients (93%) underwent cholecystectomy. Compared to women, men were younger (average age 76 vs. 78, p value < 0.01) and had few comorbidities (average Elixhauser 1.2 vs. 1.4 p value < 0.01). Case fatality rate was similar between men (2.5%) and women (2.4% p value 0.48). A higher percentage of men spent time in the ICU (36%) compared to women (31% p value < 0.01). On multivariable analysis men were 30% less likely to undergo cholecystectomy (OR 0.69, 95% CI 0.53-0.91).
Conclusion: Elderly men are less likely than elderly women to undergo cholecystectomy for acute cholecystitis despite being younger with less co morbidity and are more likely to spend time in the ICU. More research is needed to determine whether a difference in treatment is contributing to the higher rate of ICU utilization in elderly men with acute cholecystitis.
Books on the topic "Digestive system surgical procedures"
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G, Moody Frank, ed. Surgical treatment of digestive disease. 2nd ed. Chicago: Year Book Medical Publishers, 1990.
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Vincent, Taylor T., Watson A. 1948-, and Williamson Robin C. N, eds. Upper digestive surgery. London: W.B. Saunders, 1999.
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L, Dent Thomas, University of Michigan. Dept. of Surgery. Section of General Surgery., Society of American Gastrointestinal Endoscopic Surgeons., and Abington Memorial Hospital. Dept. of Surgery., eds. Surgical endoscopy. Chicago: Year Book Medical Publishers, 1985.
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D, Zuidema George, and Shackelford Richard T. 1902-, eds. Shackelford's surgery of the alimentary tract. 3rd ed. Philadelphia: Saunders, 1991.
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digestório, Cirurgia do aparelho. Cirurgia do aparelho digestório. Rio de Janeiro: Rubio, 2009.
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Egiev, V. N. Odnori Ładnyi nepreryvnyi shov anastomozov v abdominal £noi khirurgii. Moskva: Medpraktika-M, 2002.
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1939-, Fromm David, ed. Gastrointestinal surgery. New York: Churchill Livingstone, 1985.
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1927-, Najarian John S., and Delaney John P. 1930-, eds. Progress in gastrointestinal surgery. Chicago: Year Book Medical Publishers, 1989.
Find full textBook chapters on the topic "Digestive system surgical procedures"
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Coleman, Brian, and Kalyanakrishnan Ramakrishnan. "Surgical Problems of the Digestive System." In Family Medicine, 1211–31. Cham: Springer International Publishing, 2016. http://dx.doi.org/10.1007/978-3-319-04414-9_100.
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Vincent, E. Chris, and Robert H. Scott. "Surgical Problems of the Digestive System." In Family Medicine, 801–10. New York, NY: Springer New York, 1998. http://dx.doi.org/10.1007/978-1-4757-2947-4_93.
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Norman, Lee A., and E. Chris Vincent. "Surgical Problems of the Digestive System." In Family Medicine, 725–33. New York, NY: Springer New York, 1994. http://dx.doi.org/10.1007/978-1-4757-4005-9_95.
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Vincent, E. Chris, and Mike Purdon. "Surgical Problems of the Digestive System." In Family Medicine, 790–99. New York, NY: Springer New York, 2003. http://dx.doi.org/10.1007/978-0-387-21744-4_93.
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Coleman, Brian, and Kalyanakrishnan Ramakrishnan. "Surgical Problems of the Digestive System." In Family Medicine, 1–21. Cham: Springer International Publishing, 2015. http://dx.doi.org/10.1007/978-1-4939-0779-3_100-1.
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Coleman, Brian, and Kalyanakrishnan Ramakrishnan. "Surgical Problems of the Digestive System." In Family Medicine, 1–21. New York, NY: Springer New York, 2020. http://dx.doi.org/10.1007/978-1-4939-0779-3_100-2.
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Coleman, Brian, and Kalyanakrishnan Ramakrishnan. "Surgical Problems of the Digestive System." In Family Medicine, 1315–35. Cham: Springer International Publishing, 2022. http://dx.doi.org/10.1007/978-3-030-54441-6_100.
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Zilberstein, Bruno, Danilo Dallago De Marchi, Andrea Vieira Martins, Rodrigo Moises de Almeida Leite, and Gustavo Guimarães. "Robotic Devices in Surgery of the Digestive System." In Robotic Surgery Devices in Surgical Specialties, 73–100. Cham: Springer International Publishing, 2023. http://dx.doi.org/10.1007/978-3-031-35102-0_6.
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Jenkin, Ashley, Andrew Phillip Maurice, Amanda Hamilton, Robert Edward Norton, and Yik-Hong Ho. "The Role of Surgery in Treating Parasitic Diseases of the Digestive System from Trematodes." In The Surgical Management of Parasitic Diseases, 87–105. Cham: Springer International Publishing, 2020. http://dx.doi.org/10.1007/978-3-030-47948-0_6.
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Stoianovici, Dan, Louis L. Whitcomb, James H. Anderson, Russell H. Taylor, and Louis R. Kavoussi. "A modular surgical robotic system for image guided percutaneous procedures." In Medical Image Computing and Computer-Assisted Intervention — MICCAI’98, 404–10. Berlin, Heidelberg: Springer Berlin Heidelberg, 1998. http://dx.doi.org/10.1007/bfb0056225.
Full textConference papers on the topic "Digestive system surgical procedures"
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Podder, Tarun K., Ivan Buzurovic, Ke Huang, and Yan Yu. "Multichannel Robotic System for Surgical Procedures." In Imaging and Signal Processing in Healthcare and Technology. Calgary,AB,Canada: ACTAPRESS, 2011. http://dx.doi.org/10.2316/p.2011.737-014.
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Silva, Edimo Sousa, and Maria Andreia Formico Rodrigues. "A Gesture Control System for Aiding Surgical Procedures." In 2014 XVI Symposium on Virtual and Augmented Reality (SVR). IEEE, 2014. http://dx.doi.org/10.1109/svr.2014.34.
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Gao, Shang, Yang Wang, Haoying Zhou, Kehan Yang, Yiwei Jiang, Liang Lu, Shiyue Wang, et al. "Laparoscopic photoacoustic imaging system integrated with the da Vinci surgical system." In Image-Guided Procedures, Robotic Interventions, and Modeling, edited by Cristian A. Linte and Jeffrey H. Siewerdsen. SPIE, 2023. http://dx.doi.org/10.1117/12.2653967.
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Yang, Guang, Haidong Huang, Boyang Wang, Cheng Wen, Yingsong Huang, Yifan Fu, Yu Su, and Jian Wu. "A novel method and system for stereotactic surgical procedures." In 2017 IEEE Signal Processing in Medicine and Biology Symposium (SPMB). IEEE, 2017. http://dx.doi.org/10.1109/spmb.2017.8257036.
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Guang, Yang, Huang Haidong, Wang Boyang, Wen Cheng, Huang Yingsong, Fu Yifan, Su Yu, and Wu Jian. "A novel method and system for stereotactic surgical procedures." In 2017 IEEE International Conference on Signal Processing, Communications and Computing (ICSPCC). IEEE, 2017. http://dx.doi.org/10.1109/icspcc.2017.8242511.
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Schoonmaker, Ryan E., and Caroline G. L. Cao. "Vibrotactile force feedback system for minimally invasive surgical procedures." In 2006 IEEE International Conference on Systems, Man and Cybernetics. IEEE, 2006. http://dx.doi.org/10.1109/icsmc.2006.385233.
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Ebina, Koki, Takashige Abe, Shunsuke Komizunai, Teppei Tsujita, Kazuya Sase, Xiaoshuai Chen, Madoka Higuchi, et al. "A Measurement System for Skill Evaluation of Laparoscopic Surgical Procedures." In 2019 58th Annual Conference of the Society of Instrument and Control Engineers of Japan (SICE). IEEE, 2019. http://dx.doi.org/10.23919/sice.2019.8859840.
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Yang, Xiaochen, Reid C. Thompson, Rohan Vijayan, Ma Luo, Logan W. Clements, Benoit M. Dawant, and Michael I. Miga. "Trackerless surgical image-guided system design using an interactive extension of 3D Slicer." In Image-Guided Procedures, Robotic Interventions, and Modeling, edited by Robert J. Webster and Baowei Fei. SPIE, 2018. http://dx.doi.org/10.1117/12.2295229.
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Shi, Yuan, Yajie Lou, Iroha Shirai, Xiaotian Wu, Joseph A. Paydarfar, and Ryan J. Halter. "Surgical navigation system for image-guided transoral robotic surgery: a proof of concept." In Image-Guided Procedures, Robotic Interventions, and Modeling, edited by Cristian A. Linte and Jeffrey H. Siewerdsen. SPIE, 2022. http://dx.doi.org/10.1117/12.2613486.
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Richey, Winona, Ma Luo, Sarah E. Goodale, Logan W. Clements, Ingrid M. Meszoely, and Michael I. Miga. "A system for automatic monitoring of surgical instruments and dynamic, non-rigid surface deformations in breast cancer surgery." In Image-Guided Procedures, Robotic Interventions, and Modeling, edited by Robert J. Webster and Baowei Fei. SPIE, 2018. http://dx.doi.org/10.1117/12.2295221.
Full textReports on the topic "Digestive system surgical procedures"
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F. Al-Sanea, Hamad. Evaluation of Recent Surgical Updates Regarding Diagnosis and Management of Diverticulitis. Science Repository, April 2024. http://dx.doi.org/10.31487/j.jsr.2024.01.01.
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Diverticulosis occurs when small, bulging pouches (diverticula) develop in your digestive tract. When one or more of these pouches become inflamed or infected, the condition is called diverticulitis. Diverticula are small, bulging pouches that can form in the lining of your digestive system, although it was rare before the 20th century, diverticular disease is now one of the most common health problems in the western world. It’s a group of conditions that can affect your digestive tract. The most serious type of diverticular disease is diverticulitis. It can cause uncomfortable symptoms and, in some cases, serious complications. If left untreated, these complications can cause long-term health problems. Read on to learn more about diverticulitis, including its causes, symptoms, treatment options, and how your diet might affect your risk of developing it. Objective: In this paper, our main focus was on diverticulitis and surgical intervention, and only relevant studies were discussed. Methodology: PubMed database was used for articles selection, and papers on diverticulitis were obtained and reviewed. Conclusion: Colonoscopy is best avoided in acute and uncomplicated diverticulitis. Classically, it is a surgical disease but uncomplicated cases can often be managed conservatively. Follow up of treated diverticulitis occurs after four weeks via colonoscopy, in selected cases assessing the risk of developing colonic cancer. Novel therapies are under-studied and are probable replacements for surgical intervention.
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Yu, Miao, Hong Yu, and Jianrong Li. Effectiveness of traditional Chinese medicine enema in the recovery of gastrointestinal function in the abdominal surgical treatment of digestive system diseases: a systematic review and meta-analysis. INPLASY - International Platform of Registered Systematic Review and Meta-analysis Protocols, June 2021. http://dx.doi.org/10.37766/inplasy2021.6.0039.
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Wideman, Jr., Robert F., Nicholas B. Anthony, Avigdor Cahaner, Alan Shlosberg, Michel Bellaiche, and William B. Roush. Integrated Approach to Evaluating Inherited Predictors of Resistance to Pulmonary Hypertension Syndrome (Ascites) in Fast Growing Broiler Chickens. United States Department of Agriculture, December 2000. http://dx.doi.org/10.32747/2000.7575287.bard.
Full textAbstract:
Background PHS (pulmonary hypertension syndrome, ascites syndrome) is a serious cause of loss in the broiler industry, and is a prime example of an undesirable side effect of successful genetic development that may be deleteriously manifested by factors in the environment of growing broilers. Basically, continuous and pinpointed selection for rapid growth in broilers has led to higher oxygen demand and consequently to more frequent manifestation of an inherent potential cardiopulmonary incapability to sufficiently oxygenate the arterial blood. The multifaceted causes and modifiers of PHS make research into finding solutions to the syndrome a complex and multi threaded challenge. This research used several directions to better understand the development of PHS and to probe possible means of achieving a goal of monitoring and increasing resistance to the syndrome. Research Objectives (1) To evaluate the growth dynamics of individuals within breeding stocks and their correlation with individual susceptibility or resistance to PHS; (2) To compile data on diagnostic indices found in this work to be predictive for PHS, during exposure to experimental protocols known to trigger PHS; (3) To conduct detailed physiological evaluations of cardiopulmonary function in broilers; (4) To compile data on growth dynamics and other diagnostic indices in existing lines selected for susceptibility or resistance to PHS; (5) To integrate growth dynamics and other diagnostic data within appropriate statistical procedures to provide geneticists with predictive indices that characterize resistance or susceptibility to PHS. Revisions In the first year, the US team acquired the costly Peckode weigh platform / individual bird I.D. system that was to provide the continuous (several times each day), automated weighing of birds, for a comprehensive monitoring of growth dynamics. However, data generated were found to be inaccurate and irreproducible, so making its use implausible. Henceforth, weighing was manual, this highly labor intensive work precluding some of the original objectives of using such a strategy of growth dynamics in selection procedures involving thousands of birds. Major conclusions, solutions, achievements 1. Healthy broilers were found to have greater oscillations in growth velocity and acceleration than PHS susceptible birds. This proved the scientific validity of our original hypothesis that such differences occur. 2. Growth rate in the first week is higher in PHS-susceptible than in PHS-resistant chicks. Artificial neural network accurately distinguished differences between the two groups based on growth patterns in this period. 3. In the US, the unilateral pulmonary occlusion technique was used in collaboration with a major broiler breeding company to create a commercial broiler line that is highly resistant to PHS induced by fast growth and low ambient temperatures. 4. In Israel, lines were obtained by genetic selection on PHS mortality after cold exposure in a dam-line population comprising of 85 sire families. The wide range of PHS incidence per family (0-50%), high heritability (about 0.6), and the results in cold challenged progeny, suggested a highly effective and relatively easy means for selection for PHS resistance 5. The best minimally-invasive diagnostic indices for prediction of PHS resistance were found to be oximetry, hematocrit values, heart rate and electrocardiographic (ECG) lead II waves. Some differences in results were found between the US and Israeli teams, probably reflecting genetic differences in the broiler strains used in the two countries. For instance the US team found the S wave amplitude to predict PHS susceptibility well, whereas the Israeli team found the P wave amplitude to be a better valid predictor. 6. Comprehensive physiological studies further increased knowledge on the development of PHS cardiopulmonary characteristics of pre-ascitic birds, pulmonary arterial wedge pressures, hypotension/kidney response, pulmonary hemodynamic responses to vasoactive mediators were all examined in depth. Implications, scientific and agricultural Substantial progress has been made in understanding the genetic and environmental factors involved in PHS, and their interaction. The two teams each successfully developed different selection programs, by surgical means and by divergent selection under cold challenge. Monitoring of the progress and success of the programs was done be using the in-depth estimations that this research engendered on the reliability and value of non-invasive predictive parameters. These findings helped corroborate the validity of practical means to improve PHT resistance by research-based programs of selection.