Academic literature on the topic 'Trasplante alogénico de progenitores hematopoyéticos'
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Journal articles on the topic "Trasplante alogénico de progenitores hematopoyéticos"
Martín Moro, Fernando, Juan Marquet Palomanes, María Sierra, Mónica García-Cosío, and Javier López Jiménez. "Actinomicosis esofágica tras trasplante alogénico de progenitores hematopoyéticos." Medicina Clínica Práctica 3, no. 3 (May 2020): 100083. http://dx.doi.org/10.1016/j.mcpsp.2020.100083.
Full textChaparro, Mauricio, Marcela Estupiñán, Germán Camacho, and Gloria Uribe. "Infección por Rhodotorula mucilaginosa en trasplante alogénico de progenitores hematopoyéticos, reporte de un caso." Revista Colombiana de Hematología y Oncología 5, no. 1 (July 1, 2018): 55–57. http://dx.doi.org/10.51643/22562915.362.
Full textGálvez, Kenny Mauricio, María Helena Solano, Carlos Alberto Ramírez, Virginia Abello, Enrique Pedraza, Hermann Esguerra, Carmen Rosales, Licet Villamizar, and Jesús Antonio Reyes. "Terapia primaria en aplasia de médula ósea: Trasplante alogénico de progenitores hematopoyéticos vs. terapia inmunosupresora." Revista Repertorio de Medicina y Cirugía 16, no. 3 (September 1, 2007): 143–50. http://dx.doi.org/10.31260/repertmedcir.v16.n3.2007.470.
Full textCarrillo, Daniela, Pedro Zambrano, María Angélica Wietstruck, Florencia De Barbieri, and Daniela Carrillo. "Función renal en pacientes pediátricos con trasplante alogénico de progenitores hematopoyéticos." Revista chilena de pediatría 85, no. 6 (December 2014): 701–7. http://dx.doi.org/10.4067/s0370-41062014000600007.
Full textGarcía-López, A., C. Fernández-Delgado, R. Hernández-Sánchez, J. Uceda, and R. Parody. "Manifestaciones osteomusculares en pacientes sometidos a trasplante alogénico de progenitores hematopoyéticos." Reumatología Clínica 1, no. 2 (August 2005): 112–15. http://dx.doi.org/10.1016/s1699-258x(05)72723-6.
Full textAlonso Riofrío, R., J. R. Villa Asensi, A. Sequeiros González, M. A. Díaz Pérez, M. González Vicent, and L. Madero López. "Enfermedad pulmonar obstructiva tras trasplante alogénico de progenitores hematopoyéticos en niños." Anales de Pediatría 61, no. 2 (2004): 124–30. http://dx.doi.org/10.1016/s1695-4033(04)78369-1.
Full textHerrera, Juan Manuel, Jorge E. Duque, Nohra Bolívar, Marcela Urrego, Rigoberto Gómez, Álvaro J. Guerrero, Rocío Salcedo, and Johana Buitrago. "Uso del plerixafor en pacientes pobres movilizadores para trasplante autólogo." Revista Colombiana de Hematología y Oncología 5, no. 1 (July 1, 2018): 23–27. http://dx.doi.org/10.51643/22562915.357.
Full textGuiu, Alba, Rubén López-Aladid, Laura Cardeñoso, Maria Mar Mosquera, Rafael de la Cámara, and Maria Angeles Marcos. "Estudio de resistencias de citomegalovirus en pacientes receptores de trasplante alogénico de progenitores hematopoyéticos." Medicina Clínica 154, no. 11 (June 2020): 433–39. http://dx.doi.org/10.1016/j.medcli.2019.07.027.
Full textSalar, Antonio, Rodrigo Martino, Salud Brunet, Jorge Sierra, Margarita Prats, Eduardo Muñiz, Ana Clopés, and Agustín Pero. "Trasplante alogénico de progenitores hematopoyéticos con acondicionamiento no mieloablativo en régimen ambulatorio. Primera experiencia en España." Medicina Clínica 116, no. 15 (January 2001): 580–82. http://dx.doi.org/10.1016/s0025-7753(01)71911-2.
Full textKwon, Mi, David Serrano, Jorge Gayoso, Javier Anguita, Ismael Buño, and José Luis Díez-Martín. "Infusión de linfocitos del donante tras trasplante alogénico de progenitores hematopoyéticos: experiencia clínica en un centro." Medicina Clínica 135, no. 11 (October 2010): 498–502. http://dx.doi.org/10.1016/j.medcli.2010.01.037.
Full textDissertations / Theses on the topic "Trasplante alogénico de progenitores hematopoyéticos"
Turón, Viñas Eulàlia. "Complicaciones neurológicas en niños sometidos a trasplante alogénico de progenitores hematopoyéticos." Doctoral thesis, Universitat Autònoma de Barcelona, 2020. http://hdl.handle.net/10803/670948.
Full textINTRODUCTION Hematopoietic stem cell transplantation (HSCT) is a curative treatment for many diseases, most of which do not have other curative options. It requires a conditioning treatment, both chemotherapy and irradiation, that confers frequent adverse reactions. It also can cause some complications, being the neurological complications of most importance, because of the high morbimortality rates associated to them. The aim of this study is to analyse neurological complications and associated risk factors, and also to propose a diagnostic-therapeutic algorythm to manage these complications. MATERIAL AND METHODS We analysed the evolution of 178 allogeneic HSCT performed in the Paediatrics Service of the Santa Creu i Sant Pau Hospital, between 2003 and 2018. We studied risk factors and outcomes. Univariate and multivariate analysis have been performed to explore risk factors, associated not only to neurological complications in general, but also to all types of neurological complications. RESULTS Sixty-six events have been found among 50 patients, 30 of which were considered life-threatening. Forty-seven of these events affected the Central Nervous System and nineteen, the Peripheral Nervous System. Risk factors related to neurological complications in general were: age, cranial irradiation, CD45RA+ cell depletion, implant syndrome, the use of mophetil mycophenolate, chronic graft-versus-host disease, chronic immunosupressive treatment and both CMV and VEB reactivations. Mortality was higher among patients who suffered from neurological complications. Cumulative survival was 0,323 + 0,075 in patients who suffered neurological complications and 0,380 + 0,158 in patients who did not at the end of our follow-up. CONCLUSIONS Neurologic complications are found in the 32,2% of patients undergoing HSCT in our series. Risk factors related to them are age, cranial irradiation, CD45RA+ cell depletion, implant syndrome, the use of mophetil mycophenolate, chronic graft-versus-host disease, chronic immunosupressive treatment and both CMV and VEB reactivations. Neurological complications caused higher mortality in our patients. A diagnostic and therapeutic approach is proposed.
Barba, Suñol Pere. "Evaluación de la función hepática en el trasplante alogénico de progenitores hematopoyéticos con acondicionamiento de toxicidad reducida." Doctoral thesis, Universitat Autònoma de Barcelona, 2014. http://hdl.handle.net/10803/284346.
Full textHepatic impairment is a major concern in patients receiving allogeneic hematopoietic cell transplantation (allo-HCT). Hepatic impairment prior to the procedure might have an impact on the selection of the conditioning regimen and even in the transplant indication. Moreover, several complications involving liver function occur during follow-up after the procedure. Regarding reduced-toxicity conditioning allo-HCT, the role of hepatic function is of utmost importance since patients receiving this transplant modality are older and have more severe comorbidities. The doctoral thesis presented herein includes three published studies analyzing the role of hepatic impairment in a large population of patients receiving allo-HCT with reduced-toxicity conditioning. These studies showed that hepatic impairment is common in patients receiving this modality of allo-HCT. Moreover, pretransplant predictive models including hepatic liver dysfunction are useful to identify patients at high risk of non-relapse mortality, being the Hematopoietic Cell Transplantation Comorbidity Index, the model with the highest predictive value (c-statistics 0.672). High bilirubin and gammaglutamyl-transpeptidase levels were the two liver tests more highly associated with a worse outcome after the procedure. After HCT, the development of high bilirubin levels (> 68.4 µM) are common (20%) and have an independent impact on its results. Furthermore, the sinusoidal obstructive syndrome was only the cause of 4% of the cases of severe hyperbilirubinemia in this modality of HCT. In conclusion, the hepatic impairment before and after reduced-toxicity allo-HCT plays a key role on the outcome of patients undergoing this procedure.
García, Cadenas Irene. "Complicaciones del trasplante alogénico de progenitores hematopoyéticos: enfermedad de injerto contra el receptor y predisposición a infecciones. estrategias de mejora." Doctoral thesis, Universitat Autònoma de Barcelona, 2017. http://hdl.handle.net/10803/405324.
Full textAllogeneic stem cell transplantation (allo-SCT) is the only curative therapy for many patients with hematologic malignancies. However, this treatment is limited by a high morbidity and mortality that ranges from 15% to 50% depending on patient and transplant characteristics. This doctoral thesis focuses on the two main causes of transplant related mortality (TRM), acute Graft-Versus-Host-Disease (aGVHD) and opportunistic infections, which are closely associated and cause significant morbidity and mortality in the early post-trasplant period. Firstly, this work identifies several issues that remain common obstacles in allo-SCT daily clinical practice. Secondly, evidence-based interventions are proposed to overcome these difficulties. In terms of GVHD, the interest areas are, firstly, the impact of an adequate pharmacological prophylaxis on the occurrence of acute GVHD, especially the importance of avoiding infraterapeutic levels of Ciclosporin A in the blood the first four weeks after SCT to improve long-term outcomes and secondly, once this complication has been developed, and especially in the case of steroid refractoriness, a second report stresses the importance of the appropriate design and long term follow-up of affected patients to evaluate the effectiveness of the different salvage strategies. In the field of opportunistic infections, epidemiological data on the incidence, time of onset, responsible pathogens and impact of infections on morbidity and mortality in patients with refractory acute GVHD (a well known high risk scenario in which data are lacking) are shown. This information seems helpful to optimize monitoring, prophylactic and pre-emptive strategies that have been implemented in other high-risk groups. All manuscripts included in this doctoral thesis provide detailed and original information on specific aspects of post-SCT complications and their conjunction allow a final view of the current situation and possible strategies for improvement of NRM in the SCT field that undoubtedly exceed the sum of the parts.
Elorza, Álvarez Izaskun. "Enfermedad mínima residual medida mediante citometría de flujo multiparamétrica en niños con leucemia linfoblástica aguda sometidos a trasplante alogénico de progenitores hematopoyéticos." Doctoral thesis, Universitat Autònoma de Barcelona, 2015. http://hdl.handle.net/10803/310609.
Full textOutcomes with allogeneic haematopoietic stem cell transplantation (allo-HST) are better than with chemotherapy in children with high-risk acute lymphoblastic leukaemia (ALL). The main drawback to successful transplant is relapse. The major prognostic factor for long-term relapse-free survival (RFS) is complete morphological remission prior to transplant. Minimal residual disease (MRD) in bone marrow pre-transplant, measured by polymerase chain reaction (PCR) techniques, has proved to be an independent factor of relapse post-transplant and consequently shorter survival in children with ALL. Multiparametric flow cytometry (MFC) is widely used to detect anomalous immunophenotypes in the diagnostic work-up of ALL and its monitoring throughout treatment. Several studies concluded that PCR and MFC are complementary. This thesis aimed to ascertain whether a relationship exists between MRD prior to allo-HST in children with ALL measured by MFC and outcome, assessed as RFS and overall survival (OS). Furthermore, other pre- and post-transplant factors associated with survival were studied. MRD was quantified by MFC prior to allo-HST in 80 children with ALL (age range: 6 months-19 years). According to the MRD level detected, patients were divided into two groups: MRD- positive (n=25) with blast cells ≥ 0.01% compared with total cell population, and MRD-negative (n=55) with blast cell < 0.01%. RFS at 3 years post-transplant was 72%, with OS 51%. RFS in the MRD-positive group was 50% versus 80% in the MRD-negative group (Log Rank 9.5; p=0.002). OS in the MRD-positive group was 30% versus 59% in the MRD-negative group (Log Rank 6.5; p=0.01). The presence of MRD pre-transplant measured by MFC identified a group of patients with a 5.5- fold greater risk of relapse and 3.4-fold of death, which confirmed the importance of its presence prior to transplant and the validity of the test for its identification. Bivariate analysis showed the use of radiotherapy during conditioning and the presence of acute graft-versus-host disease (aGvHD) post-transplant to be protective factors against relapse and, in the case of aGvHD, also mortality. EFS at 3 years post-transplant was 36% in patients without aGvHD, 79% in those with grades I to II and 81% in those with III to IV. OS at 3 years post-transplant was 23% in patients without aGvHD, 56 % in those with grades I to II and 57 % in those with III to IV. When patients were stratified by MRD, aGvHD favored more those with positive MRD pre-transplant. Regarding post-transplant follow-up studies, patients with positive MRD measured by MFC relapsed less than those who remained negative: 87% versus 17%. This work did not show that chimerism studies post-transplant offered relapse-related data of clinical value. Further studies are required to define new protocols for the subgroup of patients with MRD positive prior allo-HST. Furthermore, MRD and chimerism post-transplant should be assessed as prognostic factors of relapse and their interpretation used as a basis for follow-up.
Suárez-Lledó, Grande María. "Infección por Citomegalovirus en el Trasplante Alogénico de Progenitores Hematopoyéticos en la era del tratamiento anticipado: consideraciones actuales sobre la definición de grupos de riesgo y el diagnóstico." Doctoral thesis, Universitat de Barcelona, 2019. http://hdl.handle.net/10803/669231.
Full textCytomegalovirus (CMV) is a herpes virus with the ability to reactivate from a latent phase during immunosuppression. The cellular immune response mediated by cytotoxic CD8 T-lymphocytes is predominantly responsible for the control of CMV infection. Patients who receive an allogeneic stem cell transplant (SCT) experience severe and prolonged immunosuppression. Immune reconstitution after transplant is a stepwise process and T cell recovery begins after the third month after SCT. Complications such as graft-versus-host disease (GVHD) and its treatment contribute to increased immunosuppression. Therefore, infectious complications are frequent, especially CMV infection that affects 60% of patients A positive serology (IgG) in the recipient is the main risk factor for CMV infection, especially when the donor is seronegative (high risk). Other risk factors are the presence of lymphopenia, GVHD and its treatment, and T cell depletion. Our studies show that treatment with high-dose steroids increases the incidence of CMV infection and recurrent infection, especially for intermediate-risk serological patients (IgG-positive donor and recipient). In high-risk patients, steroid treatment prolonged the duration of antiviral treatment. In addition, steroid treatment delays global immune reconstitution and impairs CMV-specific immunity. The administration of post-SCT cyclophosphamide, used for GVHD prophylaxis, changes the CMV infection’s epidemiology. Deep lymphopenia occurring in the first month would explain the earlier median time to CMV infection and the delay in the CD4 T lymphocyte’s recovery (after 6 months post-SCT), explains the higher incidence of CMV disease and refractory CMV infection. We focused on the usefulness of RT-PCR as a diagnostic technique for the CMV gastrointestinal disease. The symptoms derived from CMV gastrointestinal disease are indistinguishable from those caused by GVHD. An endoscopic biopsy with histological study and inmunohistochemistry staining (gold standard) is needed for diagnosis. It has been shown that RT-PCR has the same sensitivity, specificity and predictive values than immunohistochemistry, so PCR is useful and reliable for CMV gastrointestinal disease. Furthermore, PCR-RT (quantification of viral DNA), allows an early diagnosis based on a defined cut-off so would initiate antiviral treatment more promptly. PCR-RT could also be useful for monitoring the response and define the duration of the treatment.
Piñana, Sánchez José Luis. "Complicaciones orgánicas en el transplante de progenitores hematopoyéticos con acondicionamientos de intensidad reducida." Doctoral thesis, Universitat Autònoma de Barcelona, 2016. http://hdl.handle.net/10803/368192.
Full textMartínez, Millán Silvia. "Estado de salud bucodental y presencia de lesiones orales de enfermedad injerto contra hospedador (EICH) en pacientes sometidos a trasplante alogénico de progenitores hematopoyéticos en la Región de Murcia." Doctoral thesis, Universidad de Murcia, 2016. http://hdl.handle.net/10803/369828.
Full textOBJECTIVES 1. Evaluate the oral health status of the patients under allogeneic-HPT. 2. Study the frequency of occurrence of oral GVHD. 3. Study the relationship between the appearance of oral GVHD and variables such as presence of bacterial plaque, periodontal status and rates of caries, absences and fillings. 4. Make a review of the literature on the treatment protocol of oral GVHD. 5. Confirm the need for guidelines of oral hygiene and regular visits to the dentist, pre and post transplant. MATERIAL There were reviewed the medical records and performed oral examinations to 73 patients who had received an allo-HPT for different pathologies. Patients were referred to the unit of special patients of the University Clinic of Dentistry, from the service of oncohematology at “Morales Meseguer" Hospital from October 2000 until June 2008, to assess the oral health status and the presence or absence of lesions from oral GVHD. Inclusion criteria: - Having received an allo-HPT in the Region of Murcia. -Presence of teeth to assess their oral health status. METHODS The data were obtained from clinical and radiological examinations. We also collected data from the medical files of the service of Hematology of "Morales Meseguer" Hospital (Murcia). Collection and registration of data were performed by a single operator. RESULTS In our study, 82.5% of the patients presented dental caries, with an average of 4.47 caries. 74% of the patients had at least one missing piece. The average of dental absences was 4.52. We found that 29 patients (39.7%) did not have any type of restaurative treatment. The mean of fillings was 2.89. The largest number of fillings was obtained in the 35-44 age group. This may be due to better health education, improved access to treatment centers and greater purchasing power of this population range. The mean of the P.I. was 76.28%. 23 patients (37.1%) had a P.I. of 100%, indicating a very poor hygiene, what would lead to increased caries, gingivitis, periodontal problems, dental problems, increased risk of infections,... 43 patients (52.4%) did not present any type of injury compatible with systemic GVHD, while 30 (36.6%) were diagnosed of this injury. 34 (41.5%) were free from oral GVHD and 39 patients (47.6%) showed those lesions. The presence of caries in patients with GVHD had statistically significant relationship (p < 0.05), which would strengthen the hypothesis that cavities progress faster and more aggressive in these patients than in the normal population. Group with oral and/or systemic GVHD have a higher average of tooth fillings, maybe due to the greater care, and more serious systemic symptoms that make these patients be more aware of possible complications after the TPH. CONCLUSIONS 1. Both the periodontal and dental health in our study sample are worse than the Spanish population in the oral health survey of 2010. 2. Patients undergoing TPH have a high number of carious teeth, higher than the general population, and a lower rate of restoration. 3. Periodontal health is very poor and the patient is little awareness for the maintenance of their oral status. 4. The HPT and salivary flow have little influence or interdependence among themselves. 5. It should make a protocol for the first visit, monitoring and dental treatment of patients that will undergo a HPT from Oncohematology Unit to reduce the subsequent oral complications. 6. Specific training and a specialized unit in the treatment of these patients is needed, for the early detection of oral symptoms of GVHD.
Holgado, Pérez Susana. "Variaciones de la masa ósea en el trasplante de progenitores hematopoyéticos." Doctoral thesis, Universitat Autònoma de Barcelona, 2014. http://hdl.handle.net/10803/317964.
Full textPrevious: Osteoporosis is a common complication of hematopoietic stem cell transplantation. Its pathogenesis is complex, involving multiple factors, namely the immunosuppressive drugs that are used in the induction period and consolidation and particularly the changes in the stromal cells of the bone marrow as a consequence of the transplant. .This entails an uncoupling of bone remodeling with an increase of bone resorption and decreased bone formation. Hypothesis: Patients who receive stem cell transplantation have a decreased bone mass . There are differences in bone mineral density between patients receiving allogeneic and autologous transplantation. This reduction leads to an increase in the number of fractures. Objectives: To determine the changes in bone mineral density of patients who receive a transplant of hematopoietic progenitors. To study the differences in bone loss between autologous and allogeneic transplant. To establish the changes in bone remodeling as well as the concentration of osteoprotegerin serum and growth factor type I insulin in these patients and to correlate it with the bone mineral density and the rate of vertebral fractures. Design: Prospective study. We performed serial measurements of bone mineral density, bone turnover markers (aminoterminal propeptide of type I procollagen and telopeptide aminoterminal of type I collagen), hormones (thyrotropin, thyroxine unbound protein, cortisol, parathyroid, FSH, LH, estradiol, testosterone, testosterone binding protein), growth factor type I insulin, 25 and 1,25 hydroxyvitamin D and osteoprotegerin and thoracolumbar radiographs profile. Setting and subjects of study: Adult patients of age ≥ 18 years who have received hematopoietic stem cell transplantation at the University Hospital Germans Trias i Pujol. Instrumentation: Bone mineral density was investigated with densitometer LUNAR prodigy in all patients .Futhermore markers of bone formation and resorption, and osteoprotegerin by hormonal measurements enzimo techniques and radioimmunoassay were determined in all the patients. Results: 100 patients were recruited ; 46 (46%) were women; 53 (53%) received autologous and 47 (47%) allogeneic transplantation. Prior to the transplant 37 patients (38%) had a low (26 osteopenia and 11 osteoporosis) bone mass. The mean (SD) BMD were 1.139 (0.179) g/cm2 in lumbar spine and 0.971 (0.131) g / cm2 in femoral neck. A decrease in bone mineral density at 6 months in both lumbar spine (1.132 vs. 1.086 g / cm2, p <0.001) and femoral neck (0.964 vs. 0.914 g / cm2 p <0.001) was observed. At 12 months the bone mineral density was : at the lumbar spine (1,124 vs. 1,096 g / cm2, p <0.001) and femoral neck (0.962 vs. 0.898 g / cm2, p <0.001). When comparing bone mineral density by the type of the transplant, the change after 12 months at the lumbar spine, in the autologous was -1.96% compared to -3.18% in allogeneic and thew change at femoral neck was -8.76 -5.20% a respectively. Osteoprotegerin values increased after both autologous transplant group (4.33 vs. 5.35 pmol / l, p = 0.016) and allogeneic (5.08 vs. 5.78 pmol / l, p = 0.015 ). However, these values were not correlated with bone mineral density. A significant increase in the values of aminoterminal propeptide of type I procollagen at 3 months (80.94 versus 79.08 ng / mL, p = 0.001) in the group of autologous transplantation was observed whereas the aminoterminal propeptide allogeneic type I procollagen was decreased at 3 months (81.23 vs. 112.47 ng / mL, p = 0.034) , 6 months (127.95 86.893 versus ng / mL, p = 0.021) and 12 months (90.98 vs. 123.07 ng / mL, p = 0.048). A nonsignificant increase in values of aminoterminal telopeptide of type I collagen in both types of transplantation was observed. Patients who developed graft-versus-host disease (GVHD) Chronic showed a greater decrease in bone mineral density in L2-L4 segment than those who had not this complication. There was a negative correlation (close to be statistical significance) between the cumulative dose of glucocorticoids and the loss of mineral density in the lumbar spine. The fracture rate was 5.2%. Conclusions: Patients candidates for hematopoietic stem cell transplant have low levels of bone mineral density ( one third of cases) prior to the transplant. Both autologous and allogeneic trasnplant groups showed a loss of bone mass, which was more marked in the femoral neck. Patients in the allogeneic transplant group have changes in markers of bone turnover ( a decrease in bone formation markers and a increase in resorption markers), this reflects the pathophysiological mechanism of bone loss. Serum osteoprotegerin is increased but it is not correlated with bone mineral density. Graft versus host disease is related to chronic loss of bone mass after allogeneic hematopoietic progenitors. The cumulative dose of glucocorticoids is negatively correlated with bone loss in that group, approaching a statistical significance.
Blanco, Morgado Yolanda. "Trasplante autólogo de progenitores hematopoyéticos como opción terapéutica en la esclerosis múltiple." Doctoral thesis, Universitat de Barcelona, 2006. http://hdl.handle.net/10803/2193.
Full textHIPÓTESIS Y OBJETIVOS: La tolerancia inmune tras el TAPH debería conllevar un descenso en la actividad inflamatoria inmunomediada con una mejoría en el curso clínico y radiológico de los pacientes asociado a un descenso de marcadores biológicos de actividad inflamatoria implicados en la patogenia de la EM. Para ello, analizamos la evolución de los niveles de MMP-9, de BDNF, la reconstitución inmune, y el perfil de secreción de citocinas. Asimismo, estudiamos la influencia del polimorfismo funcional BDNF-Val66Met en la capacidad de secreción de BDNF por las células inmunes, así como en la susceptibilidad a padecer EM o en la severidad de la misma.
RESULTADOS: 14 pacientes con EM agresiva resistente a la terapia convencional fueron sometidos a un TAPH. La mortalidad del procedimiento fue del 0% y no se produjo ningún evento tóxico grave. Tras una mediana de seguimiento de 3 años se produjo un gran descenso en la tasa de brotes y la probabilidad de permanecer libre de progresión de la enfermedad fue del 85,7%. Se observó la desaparición de las lesiones captantes de contraste en RM y un notable descenso de la carga lesional asociado a una atrofia del cuerpo calloso secundaria a la resolución del edema de las lesiones cerebrales. El TAPH reduce los niveles séricos y de expresión de la MMP-9 con un descenso en el cociente MMP-9/TIMP-1 de actividad proteolítica. El TAPH produce una lenta recuperación de los linfocitos CD4+ con una inversión del cociente de CD4+/CD8+ asociado a un desplazamiento de respuesta inflamatoria hacia un perfil Th2. El TAPH desciende los niveles de BDNF sin evidencia de correlación con las medidas de atrofia cerebral. La distribución de frecuencias alélicas y genotípicas fue similar entre EM y controles, ni se asoció con ningún parámetro de severidad de la EM. La presencia del alelo met no se asocia a un descenso en los niveles de BDNF.
CONCLUSIONES: El TAPH en la EM tiene una toxicidad aceptable, reduce la actividad inflamatoria de la enfermedad y parece retrasar la progresión de la discapacidad. Reduce la carga proteolítica asociada a MMP-9/TIMP-1 pudiendo contribuir a la reducción de la actividad de la enfermedad. El TAPH tiene un efecto inmunodepresor e inmunomodulador prolongado como muestra la inversión del cociente CD4+/CD8+ y el desplazamiento de la respuesta inflamatoria hacia un perfil Th2. El descenso en los niveles de BDNF parece influir en la atrofia cerebral de la EM. El polimorfismo BDNF-Val66Met no incrementa la susceptibilidad ni la severidad de la enfermedad, ni disminuye la capacidad de las células inmunes de secretar BDNF.
Sisinni, Luisa. "Desarrollo de neoplasias secundarias después del trasplante de progenitores hematopoyéticos realizado en edad pediátrica." Doctoral thesis, Universitat Autònoma de Barcelona, 2016. http://hdl.handle.net/10803/399832.
Full textINTRODUCTION Hematopoietic stem cell transplantation (HSCT) is a medical procedure that allows the cure of many paediatric diseases. It has been described an increased risk of new malignancies in this population and it represents an important cause of late mortality. The purpose of this study is to analyse the incidence of secondary malignancies and the associated risk factors. PATIENTS AND METHODS We analyzed the late evolution of 371 patients submitted at pediatric age to hematopoietic transplantation (HSCT) (allogeneic or autologous) in Santa Creu i Sant Pau Hospital between 1984 and 2013. It has been calculated the cumulative incidence of secondary malignancies at 30 years of follow-up. It has been done univariate and multivariate analysis of risk factors through Chi-squared test and binary logistic regression method (Odds Ratio). It has been studied the risk excess for new malignancies through comparison of observed cases in our cohort with the expected cases in the general population by using Chi-squared test. RESULTS We observed 19 cases of secondary malignancies with a cumulative incidence of 6% at 15 years, 12% at 20 years and 36% at 30 years of follow-up. The risk was higher of expected in general population for each tumor type and in the different range of age. Chronic graft versus host disease, total body irradiation of conditioning and previous radiotherapy were the factors related with an increased risk. Mortality was 42% between patients with a new malignancy and it was the cause of death for all the cases. CONCLUSION We observed an incidence of secondary malignancies after HSCT of 5.1% that is significantly higher compared to the expected in the general population (p=0,000). The factors that have been related to an increased risk were chronic GvHD (graft versus host disease), TBI and radiotherapy administered previously.
Reports on the topic "Trasplante alogénico de progenitores hematopoyéticos"
Sureda Balari, Anna. Tratamiento de los Pacientes con Linfoma de Hodgkin luego del Trasplante Autólogo de Progenitores Hematopoyéticos. Buenos Aires: siicsalud.com, March 2017. http://dx.doi.org/10.21840/siic/152224.
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