26 results on '"Salzedas-Netto AA"'
Search Results
2. Evaluation of psychological symptoms in patients before and after simultaneous pancreas-kidney transplantation: a single-center cross-sectional study.
- Author
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Romano TM, Linhares MM, Posegger KR, Rangel ÉB, Gonzalez AM, Salzedas-Netto AA, Mucci S, Silva-Junior HT, Lopes Filho GJ, and Medina-Pestana JO
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- Cross-Sectional Studies, Female, Humans, Male, Pancreas, Kidney Failure, Chronic surgery, Kidney Transplantation adverse effects, Kidney Transplantation methods, Pancreas Transplantation adverse effects, Pancreas Transplantation methods
- Abstract
Purpose: Simultaneous pancreas-kidney transplantation (SPKT) brings several benefits for insulin-dependent type-1 diabetic patients associated with end-stage renal disease (ESRD). However, data on psychological outcomes for the waiting list and the transplanted patients are still lacking., Methods: Using the psychological Beck inventories of anxiety (BAI) and depression (BDI), 39 patients on the waiting list were compared to 88 post-transplanted patients who had undergone SPKT., Results: Significant differences were found regarding depression (p = 0.003) but not anxiety (p = 0.161), being the pretransplant patients more vulnerable to psychological disorders. Remarkable differences were observed relative to the feeling of punishment (p < 0.001) and suicidal thoughts (p = 0.008) between the groups. It was observed that patients who waited a longer period for the transplant showed more post-transplant anxiety symptoms due to the long treatment burden (p = 0.002)., Conclusions: These results demonstrated the positive impact of SPKT on psychological aspects related to depression when comparing the groups. The high number of stressors in the pretransplant stage impacts more severely the psychosocial condition of the patient.
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- 2022
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3. Transplantation in Hepatocellular Carcinoma: Observational Multivariate Analysis of Survival and Recurrence Factors in 414 Patients.
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Takamatsu FY, Gonzalez AM, Sá GP, and Salzedas-Netto AA
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- Brazil, End Stage Liver Disease, Female, Humans, Male, Multivariate Analysis, Neoplasm Recurrence, Local, Retrospective Studies, Risk Factors, Severity of Illness Index, Carcinoma, Hepatocellular surgery, Liver Neoplasms surgery
- Abstract
Background: We sought to identify the risk factors involved in survival of and tumor recurrence in patients with hepatocellular carcinoma (HCC) undergoing liver transplant (LTx)., Methods: We conducted a retrospective observational study and analyzed the medical records of 414 patients with HCC undergoing deceased donor LTx in São Paulo between January 2007 and December 2011. Multifactorial analysis of survival and recurrence was performed using clinical, laboratory, and pathology data., Results: The mortality rate was 27.5%; mean survival time was 68.1 months (95% confidence interval, 64.7-71.6); and estimated 1-, 3-, and 5-year survival probabilities were 83.8%, 75.8%, and 71.5%, respectively. Altered donor blood glucose, female sex, vascular invasion, advanced age, high Model for End-Stage Liver Disease, and tumor size were the main risk factors determining survival in LTx recipients. Recurrence was noted in 7.2% of patients during the study period and was more frequent in women (hazard ratio, 2.6). Vascular invasion increased the chance of recurrence by 5.4 times. Each additional 1-year increase in recipient age increased the chance of recurrence by 5.6%, and each 1-mm increase in tumor size increased the chance of recurrence by 3%., Conclusions: Risk factors for reduced survival are donor blood glucose, female recipient, older age, increased Model for End-Stage Liver Disease score, and nodule size. Tumor recurrence risk factors are vascular invasion, female sex, recipient age, and nodule size., (Copyright © 2021 Elsevier Inc. All rights reserved.)
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- 2021
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4. Long-term Outcome of a Modified Piggyback Liver Transplantation Technique Using the Recipient's Right and Middle Hepatic Veins.
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Massarollo PCB, Coelho FF, Brescia MDG, Sandoli Baía CE, Lallée MP, Dias de Almeida M, Salzedas-Netto AA, Coppini AZ, Massarollo DB, and Mies S
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- Adult, Anastomosis, Surgical adverse effects, Anastomosis, Surgical methods, Female, Humans, Liver Transplantation adverse effects, Male, Middle Aged, Postoperative Complications epidemiology, Postoperative Complications etiology, Retrospective Studies, Hepatic Veins surgery, Liver Transplantation methods
- Abstract
In early piggyback liver transplantation (LT) descriptions, the common stump of the middle and left hepatic veins (ML) was used for upper caval anastomosis. In this variant, stenosis or kinking of graft venous outflow path was frequent. Over time, most authors adopted the use of the recipient's right, middle, and left hepatic veins (RML) or a side-to-side anastomosis (SS) between the graft's and recipient's inferior vena cava (IVC). Nonetheless, partial IVC clamping required in RML and SS can reduce IVC flow. Since 1998, we incorporated a modified piggyback procedure using the recipient's right and middle hepatic veins (RM) to simultaneously achieve better preservation of IVC flow and a wide and well-positioned anastomosis., Objective: The aim of this study is to describe the RM method and to compare this technique with other standard variants of piggyback LT., Method: We conducted a retrospective analysis of 477 piggyback LTs classified in 4 groups: ML (n = 102); RM (n = 171); RML (n = 150); and SS (n = 54)., Results: The incidence of venous outflow block was 3.9% (4/102) in ML, 2.3% (4/171) in RM, 0% (0/150) in RML, and 3.7% (2/54) in SS (P = .049). On Bonferroni multiple comparison analysis, no statistically significant paired difference was identified. Results showed that 1-, 3-, 5-, and 10-year patient survival was 76%, 67%, 63%, and 51% in the ML group; 80%, 71%, 68%, and 62% in the RM group; 77%, 75%, 70%, and 64% in the RML group; and 76%, 76%, 76%, and 70% in the SS group, respectively (P = .193)., Conclusion: The RM modified piggyback LT technique is feasible and safe., (Copyright © 2020 Elsevier Inc. All rights reserved.)
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- 2020
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5. The quality of life in type I diabetic patients with end-stage kidney disease before and after simultaneous pancreas-kidney transplantation: a single-center prospective study.
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Posegger KR, Linhares MM, Mucci S, Romano TM, Gonzalez AM, Salzedas Netto AA, Rangel ÉB, Lopes Filho GJ, Silva-Junior HT, and Medina-Pestana J
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- Humans, Pancreas, Prospective Studies, Quality of Life, Diabetes Mellitus, Type 1 complications, Diabetes Mellitus, Type 1 surgery, Kidney Failure, Chronic surgery, Kidney Transplantation, Pancreas Transplantation
- Abstract
Simultaneous pancreas-kidney transplantation (SPKT) aimed at increasing the life expectancy for diabetic patients with end-stage kidney disease (ESKD). However, the risks of surgery complications and immunosuppression therapy make it unclear if the SPKT positively impacts patient's quality of life (QoL). Using the Kidney Disease Quality of Life-Short-Form Health Survey (KDQOL-SF36) and Problems Areas in Diabetes (PAID) measurement tools, we compared the QoL of 57 patients on the pretransplant waiting list with that of 103 patients who had undergone SPKT. Posttransplantation patients were assessed within different time intervals (<1, 1-3, and >3 years). Mean KDQOL-SF36 scores were better among posttransplantation patients in the SF36 and KDQOL domains. It was also observed patients' stress reduction in PAID mean score (P = 0.011) after SPKT. We concluded that patients receiving SPKT had a better perception of QoL than did patients on the waiting list, and this positive perception remained almost entirely comparable over the three different intervals of the posttransplantation time. These positive results showed better outcomes when excluding patients that lost pancreas graft function. Further research is needed to compare diabetic patients with kidney transplant alone using specific measurement tools to evaluate patient's QoL., (© 2019 Steunstichting ESOT.)
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- 2020
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6. Need for dental treatment in patients on the waiting list for liver and simultaneous pancreas-kidney transplant at a single center.
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Ramaglia AHF, Salzedas-Netto AA, Monteiro MM, Pimentel-Mota CFMG, Abranches DC, Rangel EB, and Gonzalez AM
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- Adult, Female, Humans, Male, Middle Aged, Waiting Lists, Dental Caries, Kidney Transplantation, Liver Transplantation, Oral Health, Pancreas Transplantation
- Abstract
Objective: to evaluate the oral conditions and the main predisposing factors for dental treatment of patients on the waiting list for liver and simultaneous pancreas-kidney transplantation, in a single center., Methods: we evaluated 100 patients in the waiting list, 50 candidates for liver transplantation and 50 for simultaneous kidney-pancreas transplantation, from August 2015 to February 2018. We correlated extra and intraoral examinations with pre-transplant demographic variables., Results: the main oral alteration in the pancreas-kidney and liver transplant candidates were decayed, lost and filled teeth, present in 83% and 100% of the candidates, respectively (p=0.03). The need for dental treatment was equal in both groups: 71% and 70%. In liver transplant candidates, the predisposing factors for dental treatment were age, color and etiological diagnosis of liver cirrhosis. We did not identify predisposing factors for dental treatment in candidates for simultaneous pancreas-kidney transplant., Conclusion: candidates for liver and for simultaneous pancreas-kidney transplantation had poor oral hygiene, with cavities, residual roots, gingivitis and periodontitis, revealing that dental evaluation should be part of the transplantation waiting list.
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- 2019
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7. Simultaneous pancreas-kidney transplantation and the impact of postoperative complications on hospitalization cost.
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Carlotto JRM, Linhares MM, Salzedas Netto AA, Rangel ÉB, Medina-Pestana JO, Ferraro JR, Lopes Filho GJ, Oliva CAG, and Gonzalez AM
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- Adult, Brazil, Costs and Cost Analysis, Female, Hospitalization statistics & numerical data, Humans, Kidney Transplantation economics, Male, Pancreas Transplantation economics, Pancreatectomy economics, Retrospective Studies, Young Adult, Hospitalization economics, Kidney Transplantation adverse effects, Pancreas Transplantation adverse effects, Pancreatectomy adverse effects, Postoperative Complications economics, Reoperation economics
- Abstract
Objective: considering simultaneous pancreas-kidney transplantation cases, to evaluate the financial impact of postoperative complications on hospitalization cost., Methods: a retrospective study of hospitalization data from patients consecutively submitted to simultaneous pancreas-kidney transplantation (SPKT), from January 2008 to December 2014, at Kidney Hospital/Oswaldo Ramos Foundation (Sao Paulo, Brazil). The main studied variables were reoperation, graft pancreatectomy, death, postoperative complications (surgical, infectious, clinical, and immunological ones), and hospitalization financial data for transplantation., Results: the sample was composed of 179 transplanted patients. The characteristics of donors and recipients were similar in patients with and without complications. In data analysis, 58.7% of the patients presented some postoperative complication, 21.8% required reoperation, 12.3% demanded graft pancreatectomy, and 8.4% died. The need for reoperation or graft pancreatectomy increased hospitalization cost by 53.3% and 78.57%, respectively. The presence of postoperative complications significantly increased hospitalization cost. However, the presence of death, internal hernia, acute myocardial infarction, stroke, and pancreatic graft dysfunction did not present statistical significance in hospitalization cost (in average US$ 18,516.02)., Conclusion: considering patients who underwent SPKT, postoperative complications, reoperation, and graft pancreatectomy, as well as surgical, infectious, clinical, and immunological complications, significantly increased the mean cost of hospitalization. However, death, internal hernia, acute myocardial infarction, stroke, and pancreatic graft dysfunction did not statistically interfere in hospitalization cost.
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- 2019
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8. Periductal Lymphocytic Infiltrate at Bilary Atresia Diagnosis Increases the Risk of Addition to the Transplant Waitlist.
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Dos Santos Perez P, Takamatsu FY, Azevedo RA, Miziara Gonzalez A, Simonato M, Reis da Silva Patrício F, Luiz Martins J, and Salzedas Netto AA
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- Bile Ducts immunology, Bile Ducts pathology, Biliary Atresia surgery, Biopsy, Child, Preschool, Disease Progression, Female, Humans, Infant, Kaplan-Meier Estimate, Liver immunology, Liver pathology, Logistic Models, Lymphocytes immunology, Male, Neutrophil Infiltration, Odds Ratio, Retrospective Studies, Treatment Outcome, Biliary Atresia immunology, Biliary Atresia pathology, Liver Transplantation methods, Patient Selection, Waiting Lists
- Abstract
Purpose: Biliary atresia (BA) is the main indication for pediatric liver transplantation. The aim of this study is to correlate aspects of histological examinations of diagnostic hepatic biopsies for BA with the patients' clinical progression and successful addition to the liver transplant waitlist., Methods: This was a retrospective study of all 108 BA cases treated at the Federal University of São Paulo (1998-2015). Demographic and clinical data were correlated with histological findings. A logistic regression was used for outcome analysis, while the Kaplan-Meier method was applied for survival analysis., Results: There were 108 patients with BA, 68.5% of whom underwent Kasai surgery. Patients added to the transplant waitlist tended to undergo Kasai surgery at a later time (P = .035). Periductal lymphocytic infiltrate was correlated with the addition to the transplant waitlist, with an odds ratio of 3.92 (P = .033). Patients who developed ascites after surgery were more frequently added to the transplant waitlist (P = .05)., Conclusion: Patients added to the transplant waitlist underwent Kasai surgery later than other patients. Periductal lymphocytic infiltrate in the diagnostic hepatic biopsy and ascites after Kasai surgery were associated with an increased likelihood of addition to the transplant waitlist., (Copyright © 2018 Elsevier Inc. All rights reserved.)
- Published
- 2018
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9. Evaluation of survival of patients with hepatocellular carcinoma: A comparative analysis of prognostic systems.
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Tannus RK, Almeida-Carvalho SR, Loureiro-Matos CA, Miziara-Gonzalez A, Salzedas-Netto AA, Szejnfeld D, D'Ippolito G, Pereira-Lanzoni V, and Souza-Silva I
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- Aged, Antineoplastic Agents therapeutic use, Carcinoma, Hepatocellular drug therapy, Carcinoma, Hepatocellular mortality, Female, Humans, Liver Neoplasms drug therapy, Liver Neoplasms mortality, Male, Middle Aged, Niacinamide analogs & derivatives, Niacinamide therapeutic use, Phenylurea Compounds therapeutic use, Prognosis, Retrospective Studies, Sorafenib, Survival Rate, Tomography, X-Ray Computed, alpha-Fetoproteins analysis, Carcinoma, Hepatocellular pathology, Liver Neoplasms pathology, Neoplasm Staging methods
- Abstract
Background and Aim: There are several prognostic systems that address different aspects of the patient and the tumour and can guide the management of patients with hepatocellular carcinoma (HCC). This study aimed to evaluate and compare the eight staging systems for a group of patients in a public service in Brazil., Methods: Patients with HCC were retrospectively analysed between 2000 and 2012. The prognostic systems Okuda, The Cancer of the Liver Italian Program (CLIP), the Chinese University Prognostic Index (CUPI), Groupe d'Etude et de Traitément du Carcinome Hepatocellulaire (GRETCH), the modified TNM-based Japan Integrated Score (JIS) combined with alpha-fetoprotein and Child-Turcotte-Pugh (CTP), the TNM system, and the Barcelona Clinic Liver Cancer Classification (BCLC) were applied to these patients and compared through model fit measurements, likelihood scores, and the Akaike Information Criterion (AIC)., Results: A total of 247 patients were studied. The average survival time was 60 months. The TNM, Okuda, CLIP, GRETCH, modified JIS, and BCLC systems were well correlated with one another and individually important to the prediction of survival among the patients studied. However, in the statistical analysis, the CUPI delivered the best predictive performance (AIC = 566; log-likelihood = -281,240)., Conclusion: Although the CUPI system was demonstrated to be the most appropriate HCC staging system for the studied population, the choice of an ideal system is a controversial subject, and future studies with larger numbers of patients are necessary for the validation of the CUPI system as the method of choice for other populations.
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- 2018
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10. Description and evaluation of experimental models for uterine transplantation in pigs.
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Oliveira E, Tavares KADS, Gomes MTV, Salzedas-Netto AA, Sartori MGF, Castro RA, Fernandes CE, and Girão MJBC
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- Animals, Disease Models, Animal, Female, Graft Rejection immunology, Postoperative Period, Pregnancy, Pregnancy, Animal, Swine, Cyclosporine administration & dosage, Gynecologic Surgical Procedures methods, Immunosuppression Therapy, Immunosuppressive Agents administration & dosage, Infertility, Female surgery, Uterus transplantation
- Abstract
Objective: To evaluate the technique of uterine transplantation and the use of drugs used in the process of immunosuppression., Methods: We included 12 sows, and immunosuppression was performed with minimal doses of cyclosporine, and cross-match was done to exclude the possibility of blood incompatibility. Hysterectomy was performed in the donor under general anesthesia, with the removal of the aorta and inferior vena cava in monobloc, and anastomosis of these vessels was made in the recipient., Results: Six experiments were performed, and on the immediate postoperative period, five animals had good reperfusion. However, on the seventh postoperative day, histological analysis showed rejection in five animals., Conclusion: The experimental model of uterine transplantation is feasible, but monitoring doses of immunosuppressants is pivotal to prevent rejection episodes.
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- 2017
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11. Practical Considerations of Real Life of Hepatocellular Carcinoma in a Tertiary Center of Brazil.
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Almeida-Carvalho SR, Gomes-Ferraz ML, Loureiro-Matos CA, Benedito-Silva AT, Carvalho-Filho RJ, Renato-Perez R, Miziara-Gonzalez A, Salzedas-Netto AA, Szejnfeld D, D'Ippolito G, Pereira-Lanzoni V, and Souza-Silva I
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- Aged, Antineoplastic Agents adverse effects, Brazil epidemiology, Carcinoma, Hepatocellular etiology, Carcinoma, Hepatocellular mortality, Carcinoma, Hepatocellular pathology, Female, Humans, Kaplan-Meier Estimate, Liver Neoplasms etiology, Liver Neoplasms mortality, Liver Neoplasms pathology, Male, Middle Aged, Neoplasm Staging, Niacinamide adverse effects, Niacinamide therapeutic use, Phenylurea Compounds adverse effects, Risk Factors, Sorafenib, Time Factors, Treatment Outcome, Tumor Burden, Ablation Techniques adverse effects, Ablation Techniques mortality, Antineoplastic Agents therapeutic use, Carcinoma, Hepatocellular therapy, Chemoembolization, Therapeutic adverse effects, Chemoembolization, Therapeutic mortality, Hepatectomy adverse effects, Hepatectomy mortality, Liver Neoplasms therapy, Liver Transplantation adverse effects, Liver Transplantation mortality, Niacinamide analogs & derivatives, Phenylurea Compounds therapeutic use, Tertiary Care Centers
- Abstract
Background: Hepatocellular carcinoma (HCC) is the most common malignancy that develops in cirrhotic livers. Its clinical and epidemiological characteristics and mortality rates vary according to geographical region. The objective of this study was to evaluate the clinical profile, epidemiological characteristics, laboratory parameters, treatment and survival of patients with HCC., Material and Methods: Patients with HCC seen between 2000 and 2012 were studied. The Kaplan-Meier method was used for survival analysis according to variables in question., Results: The study included 247 patients with a mean age of 60 ± 10 years. There was a predominance of males (74%). The main etiologies of HCC were HCV infection (55%), excessive alcohol consumption (12%), and HBV infection (8%). Liver cirrhosis was present in 92% of cases. The mean tumor number and diameter were 2 and 5 cm, respectively. Patients meeting the Milan criteria corresponded to 43% of the sample. Liver transplantation was performed in 22.4% of patients of the Milan subset and in 10% of the whole sample. The overall mean survival was 60 months, with a 1-, 3- and 5-year survival probability of 74%, 40% and 29%, respectively. Lower survival was observed among patients with alcoholic etiology. Survival was higher among patients submitted to liver transplantation (P < 0.001), TACE (P < 0.001), or any kind of treatment (P < 0.001). However, no difference was found for surgical resection (P = 0.1) or sorafenib (P = 0.1)., Conclusion: Patients with HCC were mainly older men diagnosed at an advanced stage. Treatment was associated with better overall survival, but few patients survived to be treated.
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- 2017
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12. LIVER TRANSPLANTATION FOR CARCINOMA HEPATOCELLULAR IN SÃO PAULO: 414 CASES BY THE MILAN/BRAZIL CRITERIA.
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Sá GP, Vicentine FP, Salzedas-Netto AA, Matos CA, Romero LR, Tejada DF, Massarollo PC, Lopes-Filho GJ, and Gonzalez AM
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- Brazil, Carcinoma, Hepatocellular mortality, Female, Humans, Italy, Liver Neoplasms mortality, Male, Middle Aged, Retrospective Studies, Survival Rate, Carcinoma, Hepatocellular diagnosis, Carcinoma, Hepatocellular surgery, Liver Neoplasms diagnosis, Liver Neoplasms surgery, Liver Transplantation
- Abstract
Background: The criterion of Milan (CM) has been used as standard for indication of liver transplantation (LTx) for hepatocellular carcinoma (HCC) worldwide for nearly 20 years. Several centers have adopted criteria expanded in order to increase the number of patients eligible to liver transplantation, while maintaining good survival rates. In Brazil, since 2006, the criterion of Milan/Brazil (CMB), which disregards nodules <2 cm, is adopted, including patients with a higher number of small nodules., Aim: To evaluate the outcome of liver transplantation within the CMB., Methods: The medical records of patients with HCC undergoing liver transplantation in relation to recurrence and survival by comparing CM and CMB, were analyzed., Results: 414 LTx for HCC, the survival at 1 and 5 years was 84.1 and 72.7%. Of these, 7% reached the CMB through downstaging, with survival at 1 and 5 years of 93.1 and 71.9%. The CMB patient group that exceeded the CM (8.6%) had a survival rate of 58.1% at five years. There was no statistical difference in survival between the groups CM, CMB and downstaging. Vascular invasion (p<0.001), higher nodule size (p=0.001) and number of nodules >2 cm (p=0.028) were associated with relapse. The age (p=0.001), female (p<0.001), real MELD (p<0.001), vascular invasion (p=0.045) and number of nodes >2 cm (p<0.014) were associated with worse survival., Conclusions: CMB increased by 8.6% indications of liver transplantation, and showed survival rates similar to CM., Competing Interests: none
- Published
- 2016
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13. PEDIATRIC LIVER TRANSPLANTATION WITH EX-SITU LIVER TRANSECTION AND THE APPLICATION OF THE HUMAN FIBRINOGEN AND THROMBIN SPONGE IN THE WOUND AREA.
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Vicentine FP, Gonzalez AM, Azevedo RA, Benini BB, Linhares MM, Lopes-Filho GJ, Martins JL, and Salzedas-Netto AA
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- Child, Humans, Prospective Studies, Retrospective Studies, Fibrinogen administration & dosage, Hepatectomy methods, Liver surgery, Liver Transplantation, Surgical Sponges, Surgical Wound drug therapy, Thrombin administration & dosage
- Abstract
Background: Surgical strategy to increase the number of liver transplants in the pediatric population is the ex-situ liver transection (reduction or split). However, it is associated with complications such as hemorrhage and leaks. The human fibrinogen and thrombin sponge is useful for improving hemostasis in liver surgery., Aim: Compare pediatric liver transplants with ex-situ liver transection (reduction or split) with or without the human fibrinogen and thrombin sponge., Methods: Was performed a prospective analysis of 21 patients submitted to liver transplantation with ex-situ liver transection with the application of the human fibrinogen and thrombin sponge in the wound area (group A) and retrospective analysis of 59 patients without the sponge (group B)., Results: The characteristics of recipients and donors were similar. There were fewer reoperations due to bleeding in the wound area in group A (14.2%) compared to group B (41.7%, p=0.029). There was no difference in relation to the biliary leak (group A: 17.6%, group B: 5.1%, p=0.14)., Conclusion: There was a lower number of reoperations due to bleeding of the wound area of the hepatic graft when the human fibrinogen and thrombin sponge were used., Competing Interests: none
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- 2016
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14. Favorable Long-term Outcome in Patients Submitted to Liver Transplantation After Downstaging of Hepatocellular Carcinoma According to a Brazilian Selection Protocol.
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Massarollo PC, Coppini AZ, Salzedas-Netto AA, Coelho FF, Minami T, and Gonzalez AM
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- Adult, Brazil, Carcinoma, Hepatocellular pathology, Female, Humans, Liver Neoplasms pathology, Male, Middle Aged, Neoplasm Staging, Patient Selection, Retrospective Studies, Treatment Outcome, Carcinoma, Hepatocellular surgery, Liver Neoplasms surgery, Liver Transplantation mortality
- Abstract
Background: In October 2008, the Brazilian Ministry of Health authorized listing of downstaged hepatocellular carcinoma (HCC) for liver transplantation, according to a standardized protocol. The aim of this study was to compare the outcome of patients submitted to liver transplantation after downstaging of HCC with the results other standard indications in Brazil., Methods: We conducted a retrospective analysis of 2,667 adult 1st elective deceased-donor liver transplantations registered at the database of the Transplant Notification Center of the São Paulo State Health Secretariat. These cases are classified into 3 groups: "cirrhosis," including 1,709 patients transplanted because of end-stage liver disease; "Milan-HCC," including 873 HCC patients initially meeting the Milan criteria; and "downstaging" group, including 85 HCC patients submitted to tumor downstaging to the Milan criteria before liver transplantation., Results: One-, 3-, 5-, and 6-year patients survivals were, respectively, 82.7%, 72.0%, 66.1%, and 66.1%, in the "downstaging" group and 76.7%, 68.4%, 63.9%, and 63.5% in the "Milan-HCC" group (P = .483). At the same time intervals, patient survivals were 67.8%, 62.9%, 60.9%, and 60.2% in the "cirrhosis" group. These probabilities were significantly lower than those of both "downstaging" (P = .047) and "Milan-HCC" (P = .001) groups., Conclusions: Patients submitted to liver transplantation after downstaging of HCC, according to a Brazilian selection protocol, present long-term outcomes similar to HCC patients initially within the Milan criteria and better survival than recipients with end-stage liver disease., (Copyright © 2016 Elsevier Inc. All rights reserved.)
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- 2016
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15. Financial cost of the admissions for simultaneous pancreas-kidney transplant in a Brazilian hospital.
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Salzedas-Netto AA, Gonzalez AM, Fagundes U, Linhares MM, Vicentine FP, Romero LR, Martins JL, Pestana JO, and Oliva CA
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- Brazil, Female, Hospitalization economics, Humans, Intensive Care Units economics, Kidney Transplantation mortality, Male, Pancreas Transplantation mortality, Statistics, Nonparametric, Time Factors, Costs and Cost Analysis, Kidney Transplantation economics, Pancreas Transplantation economics
- Abstract
Purpose: To perform a cost analysis of simultaneous pancreas-kidney transplantation (SPKT) in a Brazilian hospital., Methods: Between January 2008 and December 2011, 105 consecutive SPKTs at the Hospital of Kidney and Hypertension in Sao Paulo were evaluated. We evaluated the patient demographics, payment source (public health system or supplementary system), and the impact of each hospital cost component. The evaluated costs were corrected to December 2011 values and converted to US dollars., Results: Of the 105 SPKT patients, 61.9% were men, and 38.1% were women. Eight patients died, and 97 were discharged (92.4%). Eighty-nine procedures were funded by the public health system. The cost for the patients who were discharged was $18.352.27; the cost for the deceased patients was $18.449.96 (p = 0.79). The FOR for SPKT during this period was positive at $5,620.65. The costs were distributed as follows: supplies, 36%; administrative costs, 20%; physician fees, 15%; intensive care unit, 10%; surgical center, 10%; ward, 9%., Conclusion: Mortality did not affect costs, and supplies were the largest cost component.
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- 2014
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16. Risk factors of pancreatic graft loss and death of receptor after simultaneous pancreas/kidney transplantation.
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Sousa MG, Linhares MM, Salzedas-Netto AA, Gonzalez AM, Rangel EB, Sá JR, Araújo SG, Melaragno CS, Lopes-Filho G, and Medina Pestana OJ
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- Adolescent, Adult, Brazil epidemiology, Diabetes Mellitus mortality, Female, Graft Survival, Humans, Incidence, Kidney Failure, Chronic mortality, Male, Middle Aged, Retrospective Studies, Risk Factors, Survival Rate trends, Young Adult, Diabetes Mellitus surgery, Graft Rejection epidemiology, Kidney Failure, Chronic surgery, Kidney Transplantation adverse effects, Pancreas Transplantation adverse effects, Risk Assessment
- Abstract
Simultaneous pancreas/kidney transplants require a long graft survival and the recipient to present with more benefits than risks. We evaluated the risk factors of receptor's death and pancreatic graft loss on 2 occasions (3 and 12 months' postoperatively) in 292 transplants in whom 22 variables were evaluated. Variables were selected, 9 receivers, 8 donors, and 5 variables related to the surgical procedure. All independent variables were compared with the dependent variables of pancreatic graft losses and patient deaths. Those considered significant according to univariate analysis were analyzed by using multiple logistic regression techniques in an attempt to develop a mathematical model capable of predicting both pancreatic graft and patient losses. Lastly, based on the resulting models with all significant variables, scores were created to determine the risk of patient death and pancreatic graft loss. In the adjusted multivariate analysis, the significant variables were donor age, receiver's body mass index, initial pancreas implant, iliac venous drainage, and use of induction therapy related to pancreatic loss within 3 months after transplantation. Independent risk factors regarding the loss of patients within 12 months were body mass index and receptor induction therapy. The variables related to pancreatic graft loss within 3 months were donor age, receiver body mass index, initial use of pancreatic graft, iliac venous drainage, and induction therapy; these variables can be used for creating a risk score. The donor body mass index and the induction therapy were independently related to patient loss within 12 months after the transplant., (Copyright © 2014 Elsevier Inc. All rights reserved.)
- Published
- 2014
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17. Grade IV fibrosis interferes in biliary drainage after Kasai procedure.
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Salzedas-Netto AA, Chinen E, de Oliveira DF, Pasquetti AF, Azevedo RA, da Silva Patricio FF, Cury EK, Gonzalez AM, Vicentine FP, and Martins JL
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- Biliary Atresia complications, Biliary Atresia diagnosis, Biliary Atresia surgery, Biopsy, Disease Progression, Female, Fibrosis, Follow-Up Studies, Humans, Infant, Male, Prognosis, Retrospective Studies, Treatment Outcome, Bile Ducts, Intrahepatic pathology, Biliary Atresia pathology, Delayed Diagnosis adverse effects, Drainage methods, Portoenterostomy, Hepatic
- Abstract
Objectives: Biliary atresia (BA) is the most common cause of liver transplantation in children. The earlier the treatment is done, the better the prognosis. The aim is to evaluate the impact of late diagnosis in children with BA, including the histopathological findings and success rate of biliary drainage in patients submitted to hepatic portoenterostomy (HPE)., Materials and Methods: A retrospective study of cases of BA in the Department of Pediatric Surgery, Federal University of São Paulo (UNIFESP) between 1998-2011. We found 63 cases of BA; of these, 42 underwent HPE and 21 were referred for liver transplantation. Clinic and pathologic data were evaluated., Results: The HPE was performed with a mean age of 86.5 days, with 16.6% having the operation at 60 days or earlier; 59.2% between 61 and 90 days; and 23.8% after 90 days. Successful biliary drainage occurred in 31% of surgeries, Mean days when HPE drained was 69.1 days, and 94.3 days when the surgery did not drain (P = .05). All patients who were successfully drained, did not have grade IV fibrosis on histology. In cases in which surgery was performed after 60 days that had not drained, 25% had grade IV fibrosis on biopsy (P = .0469)., Conclusion: The age of HPE relates to better prognosis of the disease. It was found that the rate of grade IV fibrosis is higher in no drainage patients. All patients with grade IV fibrosis had no biliary drainage., (Copyright © 2014 Elsevier Inc. All rights reserved.)
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- 2014
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18. Clinical evaluation of hepatic transection on pediatric liver transplantation.
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Benini BB, Salzedas-Netto AA, de Azevedo RA, Martins JL, Linhares MM, Vicentine FP, and Gonzalez AM
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- Adolescent, Child, Child, Preschool, End Stage Liver Disease mortality, Female, Humans, Infant, Liver Transplantation mortality, Logistic Models, Male, Postoperative Complications etiology, Retrospective Studies, Risk Factors, Treatment Outcome, End Stage Liver Disease surgery, Liver Transplantation methods
- Abstract
Objectives: Liver transplantation is an effective technique in the treatment of end-stage liver disease. The aim of this study was to evaluate the impact of hepatic transection, an advanced surgical technique able to tailor size to generate two grafts to from a single donor., Materials and Methods: A retrospective study between January 2000 and September 2013, reviewing 91 pediatric patients who underwent 96 liver transplants from deceased donors. Patients were distributed into two groups: whole organ (WO, n = 39) and transected liver grafts (TLG, n = 57). The following were evaluated: etiology, anthrophometric parameters (age, weight, height, z score weight/age, and height/age), model for end-stage liver disease (MELD) or pediatric end-stage liver disease (PELD), previous surgeries, transfusion of blood components, 1-year survival rate, preoperative laboratory testing, from the second and seventh postoperative days, lactate during surgery, postoperative complications, duration of surgery, duration of cold and warm ischemia, types of biliary reconstruction, and laboratory testing of the donor., Results: The anthropometric values showed significant differences (P < .05) between the groups. The average age was 124.7 months in the WO group and 33.6 months in the TLG group (P < .0001), while the weight was 28.0 kg and 7.4 kg, respectively (P < .0001). The analysis of z score weight/age showed that the TLG had greater acute and chronic malnutrition, probably due to the etiology of liver disease, present from birth in patients as young. Red blood transfusion was higher in the TLG group (P < .0006) due to the cut surface of the graft, emphasizing the use and improvement of hemostatic techniques., Conclusion: Despite differences between the groups, clinical and surgical complications were similar, showing that liver transection injury didn't change the results of transplantation. There was no impact on liver function, graft, or 1-year patient survival after liver transection. Second postoperative lactate is a predictive factor of death. Transection liver transplantation is an effective method as an alternative to pediatric liver transplantation., (Copyright © 2014 Elsevier Inc. All rights reserved.)
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- 2014
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19. Component analysis of hospital cost of pancreas-kidney transplant and correlations with different variables in a Brazilian hospital.
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Miziara Gonzalez A, Salzedas-Netto AA, Fagundes U, Moura Linhares M, Pompeu Piza Vicentine F, Perdomo Tejada DF, de Jesus Lopes Filho G, Medina Pestana JO, and Garcia Oliva CA
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- Adult, Brazil, Costs and Cost Analysis, Female, Humans, Male, Hospital Costs statistics & numerical data, Hospitals statistics & numerical data, Kidney Transplantation economics, Pancreas Transplantation economics
- Abstract
Introduction: Simultaneous pancreas-kidney transplantation is associated with a high rate of complications when it is compared with transplantation of other organs; these increased complications can result in increased financial costs of the procedure. The objective of this study was to determine operating costs and financial results of simultaneous pancreas-kidney transplantation and its different variables in a Brazilian hospital., Patients and Methods: Between January 2008 and December 2011, the monthly costs of 105 patients were calculated. These patients were divided into 2 groups; the first consecutive 53 patients were labeled group I and the second set of 52 patients were labeled group II. The cost evaluation was made in US dollars., Results: A total of 89 patients corresponded to the public health system and 16 patients to the supplementary health system. The percentage of hospital discharge was 92.4%. There was an increase in operating room costs in group II compared with group I with no statistically significant difference ($18,749.33 for group I and $17,608.26 for group II). The outcome of the operation was positive; it was greater for group II than for group I ($16,303.22 vs $3494.53)., Conclusions: Simultaneous pancreas-kidney transplantation is a financially feasible procedure in Brazil, with the public health system being the main payment source., (Copyright © 2014. Published by Elsevier Inc.)
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- 2014
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20. Endovascular management of massive hemobilia as a late complication of percutaneous biliary drainage in a pediatric liver transplant recipient: a case report.
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Szejnfeld D, Fornazari VA, Imada AC, Linhares MM, Azevedo RA, Salzedas-Netto AA, Gonzalez AM, and Goldman SM
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- Biliary Tract Surgical Procedures adverse effects, Child, Cholestasis therapy, Female, Humans, Transplant Recipients, Drainage methods, Embolization, Therapeutic methods, Endovascular Procedures, Hemobilia therapy, Liver Transplantation adverse effects
- Abstract
Development of biliary strictures after liver transplantation is not uncommon, and minimally invasive procedures are the first-line treatment of choice in most centers. Hemobilia is an infrequent, usually self-limited complication related to the initial biliary access procedure. Massive hemobilia with severe hemodynamic instability is a rare event, particularly as a delayed complication. The difficulty of obtaining surgical access makes management of this condition highly challenging. Endovascular embolization may represent an important treatment option in this setting., (Copyright © 2014 Elsevier Inc. All rights reserved.)
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- 2014
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21. Relationship between preoperative volume and weight of the right liver lobe graft, with and without the middle hepatic vein, in living-donor transplantation.
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Peron G Jr, Salzedas Netto AA, Mancero JP, Ribeiro MA Jr, Copstein JL, de Oliveira E Silva A, D'Albuquerque LA, and Gonzalez AM
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- Adult, Female, Humans, Liver blood supply, Living Donors, Male, Middle Aged, Organ Size, Preoperative Period, Retrospective Studies, Young Adult, Hepatic Veins, Liver anatomy & histology, Liver Transplantation
- Abstract
Background: The aim of this study was to assess the relationship between the preoperative volume of the right liver lobe (as determined by computed tomography) and the intraoperative graft weight with or without the middle hepatic vein., Methods: Sixty-three patients who underwent liver transplantation were included in this study. The preoperative volumes of both the left and the right liver lobe were measured in all patients using computed tomography. The intraoperative weight of the right liver lobe was also measured with (group 1, n = 29) and without (group 2, n = 34) the middle hepatic vein. The results were compared with respect to gender, age, body weight, height, body mass index (BMI), weights of the left and right liver lobes as measured by computed tomography, and intraoperative weight of the right liver lobe., Results: A 21.64 % difference was observed between the weight of the right liver lobe as measured by computed tomography and the weight of the right lobe without the hepatic vein as measured intraoperatively (group 2). Moreover, a 12.38 % difference was observed between the weight of the right liver lobe as measured by computed tomography and the weight of the right lobe plus the middle hepatic vein as measured intraoperatively (group 1)., Conclusions: The weight of the right liver lobe graft in a living-donor transplantation is less than that calculated by preoperative computed tomography, and the inclusion of the middle hepatic vein in the right liver lobe graft resulted in a statistically significant decrease in this difference.
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- 2013
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22. Evaluation of the presence of microorganisms in solid-organ preservation solution.
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Mattana AM, Marra AR, Machado AM, Lopes Filho Gde J, Salzedas Netto AA, and Gonzalez AM
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- Humans, Kidney Transplantation, Pancreas Transplantation, Prospective Studies, Drug Contamination, Fungi isolation & purification, Gram-Negative Bacteria isolation & purification, Gram-Positive Bacteria isolation & purification, Organ Preservation Solutions
- Abstract
Objective: To assess the presence of microorganism contamination in the preservation solution for transplant organs (kidney/pancreas)., Method: Between August 2007 and March 2008, 136 samples of preservation solution were studied prior to graft implantation. Variables related to the donor and to the presence of microorganisms in the preservation solution of organs were evaluated, after which the contamination was evaluated in relation to the "recipient culture" variable. Univariate and multivariate statistical analyses were performed., Results: The contamination rate of the preservation solution was 27.9%. Coagulase-negative Staphylococcus was the most frequently isolated microorganism. However, highly virulent agents, such as fungi and enterobacteria, were also isolated. In univariate analysis, the variable "donor antibiotic use" was significantly associated to the contamination of the preservation solution. On the other hand, multivariate analysis found statistical significance in "donor antibiotic use" and "donor's infectious complications" variables., Conclusions: In this study, 27.9% of the preservation solutions of transplant organs were contaminated. Infectious diseases and non-use of antibiotics by the donor were significantly related to the presence of microorganisms in organ preservation solutions. Contamination in organ preservation solutions was not associated with infection in the recipient.
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- 2011
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23. Effects of ischemic preconditioning associated to different preservation solutions in protecting the intestinal graft.
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Neves Jde S, Abrahão Mde S, Salzedas Netto AA, Montero EF, and Gonzalez AM
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- Adenosine pharmacology, Allopurinol pharmacology, Animals, Disaccharides pharmacology, Electrolytes pharmacology, Glucose pharmacology, Glutamates pharmacology, Glutathione pharmacology, Histidine pharmacology, Insulin pharmacology, Isotonic Solutions pharmacology, Male, Malondialdehyde analysis, Mannitol pharmacology, Potassium Chloride pharmacology, Procaine pharmacology, Raffinose pharmacology, Rats, Rats, Wistar, Ringer's Solution, Time Factors, Intestinal Mucosa, Intestine, Small blood supply, Ischemic Preconditioning, Organ Preservation methods, Organ Preservation Solutions pharmacology
- Abstract
Purpose: To evaluate the effects of ischemic preconditioning (IPC) associate with different preservation solutions, in the protecting of gut., Methods: Four groups of 14 rats underwent laparotomy and collecting 20 cm of ileum, for preservation, at 4ºC, in Belzer (Belz), Ringer (RL), Celsior (Cs) and Custodiol (Cust) solutions, for 24 hours. Prior to collection, half of the animals in each group were subjected to IPC. During preservation, in the periods of zero, 12, 18 and 24 hours, were conducted evaluating the degree of mucosal injury and dosage of malondialdehyde acid (MDA)., Results: In all periods the RL group, with and without IPC, presented MDA values higher than the Belz and Cs. The degree of mucosal injury in the non-ipc RLgroup with 12h preservation was higher than the others; with 18 and 24h, the RL and Cust had higher degrees of damage than Cs and Belz. With IPC, in all periods, the group Cs and Belz had lower degrees of injury., Conclusion: The Celsior and Belzer solutions had better protective effects on the gut and these effects were enhanced by IPC.
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- 2011
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24. Variation of the Rex shunt for treating concurrent obstruction of the portal and superior mesenteric veins.
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Salzedas-Netto AA, Duarte AA, Linhares MM, Mattar RH, Medeiros KL, Cury EK, Filho Gde J, Gonzalez AM, and Martins JL
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- Anal Canal abnormalities, Anal Canal surgery, Child, Collateral Circulation, Gastrointestinal Hemorrhage etiology, Gastrointestinal Hemorrhage therapy, Humans, Hypertension, Portal etiology, Magnetic Resonance Imaging, Mesenteric Veins, Postoperative Complications surgery, Rectum abnormalities, Rectum surgery, Sclerotherapy, Spleen pathology, Hypertension, Portal surgery, Jugular Veins surgery, Mesenteric Vascular Occlusion surgery, Portal Vein surgery, Portasystemic Shunt, Surgical methods, Splenic Vein surgery, Venous Thrombosis surgery
- Abstract
Children with extrahepatic portal vein obstruction can be managed successfully by surgical intervention and should be evaluated for potential meso-Rex bypass. A Rex shunt variation is described to treat portal and superior mesenteric vein thrombosis. This technique uses the internal jugular vein as a conduit between the splenic vein and the left portal vein with splenic preservation., (Copyright © 2011 Elsevier Inc. All rights reserved.)
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- 2011
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25. Impact of liver ex situ transection on pediatric liver transplantation.
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Salzedas-Netto AA, Amadei HL, Castro CC, Mattar RH, Medeiros KL, Linhares MM, Duarte AA, Chinen ES, Marino GC, Matos CA, Lopes-Filho G, Martins JL, and Gonzalez AM
- Subjects
- Adolescent, Blood Component Transfusion, Blood Loss, Surgical, Cadaver, Child, Child, Preschool, Erythrocyte Count, Gallbladder surgery, Graft Rejection epidemiology, Hematocrit, Hepatectomy, Humans, Infant, Intraoperative Period, Liver Function Tests, Liver Transplantation immunology, Liver Transplantation mortality, Platelet Count, Postoperative Period, Plastic Surgery Procedures, Reoperation, Retrospective Studies, Survival Analysis, Tissue Donors, Liver Transplantation statistics & numerical data
- Abstract
Unlabelled: Ex situ hepatic transection (ESHT) has allowed transplantation of younger and smaller patients than whole liver grafts. Liver transection is a technical challenge due to the prolonged back table time, possible graft lesions, and increased surgical bleeding from the cut surface. We compare the outcomes of whole versus transected liver grafts in pediatric liver transplantation., Methods: We retrospectively studied 41 pediatric patients who underwent 42 consecutive liver transplants (1 retransplant) from cadaveric donors. The study included all patients <18 years old who were transplanted at our institution from December 2001 to September 2009. Patients were distributed into 2 groups: whole organ (WO; n = 20) and transected liver grafts (TLG; n = 21). The ESHT grafts included 17 splits and 5 reduced size livers. We evaluated the age, weight, blood component transfusions, 1-year survival, laboratory tests at 2nd and 7th days postoperatively, surgical complications, reoperations, rejection episodes, cold ischemia time, biliary reconstruction type, and donor laboratory tests. Data were analyzed using Fisher and Student's t-tests., Results: The mean age was 115 months (range, 7 months to 17.6 years) in the WO group and 43.3 months (range, 5 months to 16.25 years) in the TLG group (P = .0003). Mean weight was 19.8 kg (range, 5.8-67) and 9.7 Kg (range, 5.2-57) in the WO and TLG groups, respectively (P = .0079). Red blood cell transfusion was higher in the TLG group (P = .0479). Laboratory tests showed no difference between the 2 groups considering hepatic lesions or function markers. One-year patient survivals were 90% and 85.8% among the WO and LTG, respectively (P = .588). The overall 1-year survival rate was 88.8%., Conclusion: ESHT allowed smaller and younger children to be transplanted. There was an increased necessity of red blood cell transfusions after hepatic transection. There was no impact on liver function or 1-year patient or graft survival after ESHT., (Copyright (c) 2010 Elsevier Inc. All rights reserved.)
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- 2010
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26. Can bacterial translocation be a beneficial event?
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Salzedas-Netto AA, Silva RM, Martins JL, Menchaca-Diaz JL, Bugni GM, Watanabe AY, Silva FJ, Fagundes-Neto U, Morais MB, and Koh IH
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- Animals, Blood microbiology, Female, Lymph Nodes microbiology, Rats, Rats, Wistar, Spleen microbiology, Bacterial Translocation immunology, Intestine, Small transplantation
- Abstract
Infection is a major concern in intestinal transplant recipients. Bacterial migration to extraintestinal sites is a central component of the gut hypothesis of sepsis. However, some studies have cited the beneficial effects of bacterial translocation (BT) on the host acquired immune system. We evaluated the role of previous BT on a subsequent BT challenge, examined the BT index in organs as well as changes in white blood cell (WBC) count in mesenteric lymph and blood for correlation with outcomes. Wistar rats (n = 60) were divided into a BT group (n = 20), which underwent inoculation of 10 mL of 10(10) CFU/mL Escherichia coli R-6 confined to the small intestine as opposed to a BT1-14 group (n = 20), which underwent the BT procedure on days 1 and 14 or a S1-BT14 group (n = 20) that received 10 mL of saline on day 1 and the BT procedure on day 14. Half of the animals were killed 2 hours following the BT procedure. Samples from different compartments were collected for culture. Mesenteric lymph and peripheral blood were examined for WBC counts. The other half of the hosts was subjected to outcome evaluation concerning weight gain and mortality. Animals undergoing double BT showed a significantly lower index of bacterial recovery (liver, spleen, and blood) compared with those having a single BT (P < .05). The WBC count of mesenteric lymph cells after double BT was similar to naïve animals, but significantly lower than the single BT group (P < .05). The outcome was unchanged among double BT versus other groups. A previous BT challenge was efficient to generate a host-defense mechanism against a second BT episode induced by intestinal overgrowth with the same bacterial strain.
- Published
- 2006
- Full Text
- View/download PDF
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