8 results on '"Kroth LV"'
Search Results
2. Brain death-induced cytokine release is not associated with primary graft dysfunction: a cohort study.
- Author
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Rech TH, Custódio G, Kroth LV, Henrich SF, Rodrigues Filho ÉM, Crispim D, and Leitão CB
- Subjects
- Adult, Aged, Cohort Studies, Enzyme-Linked Immunosorbent Assay, Female, Humans, Male, Middle Aged, Primary Graft Dysfunction epidemiology, Prospective Studies, Tissue and Organ Procurement methods, Brain Death blood, Cytokines blood, Organ Transplantation methods, Tissue Donors
- Abstract
Objective: To examine the association between donor plasma cytokine levels and the development of primary graft dysfunction of organs transplanted from deceased donors., Methods: Seventeen deceased donors and the respective 47 transplant recipients were prospectively included in the study. Recipients were divided into two groups: group 1, patients who developed primary graft dysfunction; and group 2, patients who did not develop primary graft dysfunction. Donor plasma levels of TNF, IL-6, IL-1β, and IFN-γ assessed by ELISA were compared between groups., Results: Sixty-nine organs were retrieved, and 48 transplants were performed. Donor plasma cytokine levels did not differ between groups (in pg/mL): TNF, group 1: 10.8 (4.3 - 30.8) versus group 2: 8.7 (4.1 - 33.1), p = 0.63; IL-6, group 1: 1617.8 (106.7 - 5361.7) versus group 2: 922.9 (161.7 - 5361.7), p = 0.56; IL-1β, group 1: 0.1 (0.1 - 126.1) versus group 2: 0.1 (0.1 - 243.6), p = 0.60; and IFN-γ, group 1: 0.03 (0.02 - 0.2) versus group 2: 0.03 (0.02 - 0.1), p = 0.93). Similar findings were obtained when kidney transplants were analyzed separately., Conclusion: In this sample of transplant recipients, deceased donor plasma cytokines TNF, IL-6, IL-1β, and IFN-γ were not associated with the development of primary graft dysfunction.
- Published
- 2019
- Full Text
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3. Renal transplantation in human immunodeficiency virus-infected recipients: a case-control study from the Brazilian experience.
- Author
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Vicari AR, Spuldaro F, Sandes-Freitas TV, Cristelli MP, Requião-Moura LR, Reusing JO Jr, Pierrotti LC, Oliveira ML, Girão CM, Gadonski G, Kroth LV, Deboni LM, Ferreira GF, Tedesco-Silva H, Esmeraldo R, David-Neto E, Saitovitch D, Keitel E, Garcia VD, Pacheco-Silva A, Medina-Pestana JO, and Manfro RC
- Subjects
- Adult, Antilymphocyte Serum administration & dosage, Antiretroviral Therapy, Highly Active, Brazil epidemiology, Case-Control Studies, Coinfection epidemiology, Cytomegalovirus isolation & purification, Cytomegalovirus Infections epidemiology, Female, Glomerular Filtration Rate, Graft Survival, HIV Infections drug therapy, HIV Infections mortality, Hepacivirus isolation & purification, Hepatitis C epidemiology, Humans, Immunosuppressive Agents administration & dosage, Immunosuppressive Agents therapeutic use, Incidence, Kidney Failure, Chronic etiology, Kidney Failure, Chronic mortality, Male, Middle Aged, Retrospective Studies, Survival Rate, Transplant Recipients, Treatment Outcome, Graft Rejection epidemiology, HIV Infections complications, Immunosuppression Therapy methods, Kidney Failure, Chronic surgery, Kidney Transplantation mortality
- Abstract
Background: Highly active antiretroviral therapy has turned human immunodeficiency virus (HIV)-infected patients with end-stage renal disease into suitable candidates for renal transplantation. We present the Brazilian experience with kidney transplantation in HIV-infected recipients observed in a multicenter study., Methods: HIV-infected kidney transplant recipients and matched controls were evaluated for the incidence of delayed graft function (DGF), acute rejection (AR), infections, graft function, and survival of patients and renal grafts., Results: Fifty-three HIV-infected recipients and 106 controls were enrolled. Baseline characteristics were similar, but a higher frequency of pre-transplant positivity for hepatitis C virus and cytomegalovirus infections was found in the HIV group. Immunosuppressive regimens did not differ, but a trend was observed toward lower use of anti-thymocyte globulin in the group of HIV-infected recipients (P = 0.079). The HIV-positive recipient group presented a higher incidence of treated AR (P = 0.036) and DGF (P = 0.044). Chronic Kidney Disease Epidemiology Collaboration estimated that glomerular filtration rate was similar at 6 months (P = 0.374) and at 12 months (P = 0.957). The median number of infections per patient was higher in the HIV-infected group (P = 0.018). The 1-year patient survival (P < 0.001) and graft survival (P = 0.004) were lower, but acceptable, in the group of HIV-infected patients., Conclusions: In the Brazilian experience, despite somewhat inferior outcomes, kidney transplantation is an adequate therapy for selected HIV-infected recipients., (© 2016 John Wiley & Sons A/S. Published by John Wiley & Sons Ltd.)
- Published
- 2016
- Full Text
- View/download PDF
4. Acute Graft Pyelonephritis Occurring up to 30 Days After Kidney Transplantation: Epidemiology, Risk Factors, and Survival.
- Author
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Kroth LV, Barreiro FF, Saitovitch D, Traesel MA, d'Avila DO, and Poli-de-Figueiredo CE
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- Acute Disease, Adult, Age Factors, Brazil epidemiology, Female, Graft Survival, Humans, Male, Middle Aged, Retrospective Studies, Risk Factors, Stents, Survival Rate, Ureter surgery, Young Adult, Antilymphocyte Serum therapeutic use, Escherichia coli Infections epidemiology, Graft Rejection prevention & control, Immunosuppressive Agents therapeutic use, Kidney Transplantation, Postoperative Complications epidemiology, Pyelonephritis epidemiology, Urinary Tract Infections epidemiology
- Abstract
Acute graft pyelonephritis is a very common infection in renal transplantation. The impact of acute graft pyelonephritis (AGPN) on graft and patient outcome has not yet been established. Eight hundred seventy kidney and kidney-pancreas transplants were retrospectively studied, over last 13 years, to verify occurrence of AGPN in the first 30 days post-transplantation. We found that 112 patients (15.8%) presented post-transplantatiom AGPN up to 30 days after a kidney transplantation. The occurrence was higher in older patients (P = .005) and in those with ureteral stents (P = .06). Escherichia coli was the most frequent microorganism in urine cultures (32%). Ureteral stent (relative risk = 1.7; confidence interval [CI], 1.1-2.5; P = .018) was a major risk factor for AGPN as well as older ages (RR = 1.02; CI 1.01-1.04; P = .001), length of hospitalization stay (RR = 1.01; CI, 1.01-1.02; P < .001), and anti-thymocyte globulin (ATG) induction (RR = 1.6; CI, 1.022-2.561; P = .04). Long-term graft and patient survival was significantly lower in patients with pyelonephritis in the first 30 days after transplantation (OR 1.43; 95% CI, 0.95-2.16; P = .024 and OR 1.77; 95% CI, 1.12-2.80; P = .006, respectively). Acute pyelonephritis in the first 30 days after transplantation is therefore associated with a lower long-term graft and patient survival., (Copyright © 2016 Elsevier Inc. All rights reserved.)
- Published
- 2016
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5. Kidney Transplantation at a Southern Brazilian University Hospital: A 35-Year Practice Review.
- Author
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Kroth LV, Barreiro FF, Saitovitch D, Traesel MA, d'Avila DO, and Poli-de-Figueiredo CE
- Subjects
- Adult, Brazil, Female, Hospitals, University, Humans, Kidney Transplantation mortality, Middle Aged, Retrospective Studies, Kidney Transplantation trends, Tissue Donors supply & distribution
- Abstract
Background: The Nephrology Unit at São Lucas Hospital, a University Hospital in Southern Brazil, has recently reached 35 years since its first kidney transplant. Few centers in the area have made a longitudinal analysis of processes, problems, grafts, and patient survival changes along this time., Methods: A single-center, retrospective study was performed. Data were separated into different eras, based on the nature of immunosuppression used: pre-cyclosporine (1978-1986), cyclosporine (1987-1997), mycophenolate introduction (1998-2002), new immunosuppressant drugs (2003-2007), and the current period (2008-2013)., Results: Between April 27, 1978, and April 30, 2013, 1231 transplants were performed. Significant differences were detected among different eras. The number of transplants has been progressively increasing, to include significantly older recipients (and donors), at a longer waiting list time, receiving organs that underwent longer cold ischemia time (P < .001). Yet, fewer acute rejection episodes and lower incidence of myocardial infarction and post-transplant diabetes mellitus (P < .001) were detected. In the present era, patient survival at 1, 3, and 5 years is 98.3%, 94.6%, and 90.5% respectively, for living donors, and 92.4%, 87.2%, and 80.7% for deceased donors, respectively. Living donor graft survival is 92.2%, 88.7%, and 82.4%, respectively, whereas deceased donor survival is 80.4%, 71.1%, and 63.7%, respectively., Conclusions: This retrospective analysis has significant historical value. It assembles and depicts a long follow-up period of a transplant series at a single Brazilian center. Throughout the eras, organ and patient survival increased, with fewer rejection episodes or complications, yet with overall decreased graft function., (Copyright © 2016 Elsevier Inc. All rights reserved.)
- Published
- 2016
- Full Text
- View/download PDF
6. Does Thymoglobulin Induction Increase Susceptibility to Carbapenem-Resistant Acinetobacter baumannii Sepsis-related Death in Expanded Criteria Donors?
- Author
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Kroth LV, Barreiro FF, Saitovitch D, Traesel MA, d'Avila DO, and Poli-de-Figueiredo CE
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- Acinetobacter Infections microbiology, Acinetobacter baumannii, Adult, Brazil epidemiology, Carbapenems, Delayed Graft Function epidemiology, Disease Susceptibility, Donor Selection, Drug Resistance, Bacterial, Female, Humans, Male, Middle Aged, Odds Ratio, Postoperative Complications microbiology, Retrospective Studies, Risk Factors, Sepsis microbiology, Tissue Donors, Acinetobacter Infections mortality, Antilymphocyte Serum therapeutic use, Graft Rejection prevention & control, Immunosuppressive Agents therapeutic use, Kidney Transplantation, Pancreas Transplantation, Postoperative Complications mortality, Sepsis mortality
- Abstract
Background: Solid organ transplant recipients are susceptible to antibiotic-resistant infections and carbapenem-resistant Acinetobacter baumannii (CRAB) has recently been recognized as a serious complication in solid organ recipients. High mortality rates have been described., Methods: We retrospectively analyzed 807 transplantations and detected 10 patients who died 24 hours after the diagnosis of septicemia, all with CRAB-positive blood cultures. Recipients were followed up for at least 1 year and were stratified into the following groups: Group 1, patients alive; Group 2, patients that died due to other causes except Acinetobacter infection; and Group 3, patients who died within 24 hours of CRAB diagnosis., Results: CRAB-positive patients died a median of 3.17 (range, 1.81-18.7) months after transplantation. In these patients, expanded criteria donors (ECDs) were more frequent (P < .001), as were the use of anti-thymocyte globulin (ATG) induction (P = .02) and delayed graft function (P = .01). For ECD recipients, death rate from any cause, whether induced with ATG or not, was 25% and 20.6%, respectively (odds ratio [OR], 1.28; confidence interval [CI] 95%, 0.56-2.91; P = .68). The death rate from CRAB-related sepsis was 10.3% and 0% whether receiving ATG or not, respectively (OR, 15.49; CI 95%, 0.87-277.16; P = .014). There was a 25.75-fold increase in the death rate in ECD kidney recipients induced with thymoglobulin and with CRAB-related sepsis., Conclusion: Transplants from ECDs and induced with thymoglobulin may be at increased risk of CRAB death in 24 hours when compared with patients with standard donors and induced with thymoglobulin., (Copyright © 2016 Elsevier Inc. All rights reserved.)
- Published
- 2016
- Full Text
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7. Prevalence of urinary decoy cells and associated risk factors in a Brazilian kidney, pancreas, and kidney-pancreas transplant population.
- Author
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Kroth LV, Henkin CS, Peres LD, Paganella MC, Mazzali M, Duval VD, Traesel MA, and Saitovitch D
- Subjects
- Adolescent, Adult, Aged, Brazil, Cross-Sectional Studies, Delayed Graft Function virology, Female, Graft Rejection virology, Humans, Immunosuppressive Agents adverse effects, Male, Middle Aged, Polyomavirus Infections epidemiology, Polyomavirus Infections urine, Polyomavirus Infections virology, Predictive Value of Tests, Prevalence, Time Factors, Treatment Outcome, Tumor Virus Infections epidemiology, Tumor Virus Infections urine, Tumor Virus Infections virology, Urinalysis, Urine cytology, Urine virology, Young Adult, BK Virus isolation & purification, Kidney Transplantation adverse effects, Pancreas Transplantation adverse effects, Polyomavirus Infections diagnosis, Tumor Virus Infections diagnosis, Urothelium virology
- Abstract
Background: Polyomavirus BK (BKV) is currently considered one of the most important infectious diseases in kidney transplants recipients. The prevalence of decoy cells (viral containing shed urothelial cells) in these patients varies between 20% and 60%. Of decoy-positive patients, 1%-8% develop BKV nephropathy, a finding that may be associated with graft failure in up to 80% of affected individuals., Methods: Decoy cells cytology is an easily performed and inexpensive assay useful for poliomavirus infection screening. Data on the prevalence of decoy cells in simultaneous pancreas-kidney or isolated pancreas recipients remains largely unreported. In the present study, we evaluated 221 patients ≥18 years old with >1 month follow-up after transplantation who had attended the outpatient clinic between September and December 2006., Results: The total prevalence of decoy cells was 16% (16.9% in kidney recipients, 5.9% in simultaneous kidney-pancreas recipients and 20% in pancreas alone recipients). There were no differences between patients with either positive or negative urinary cytology for decoy cells, regarding demographic (gender, age, race) or clinical (time posttransplantation, donor type [deceased vs living donation], and presence of delayed graft function or rejection, other associated viral infections and type of immunosuppressive drugs variables., (Copyright © 2012 Elsevier Inc. All rights reserved.)
- Published
- 2012
- Full Text
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8. Cephalic duodenopancreatectomy in the treatment of a bleeding duodenal ulcer in a pancreas recipient: a case report.
- Author
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Pires IS, Morais de Siqueira R, Kroth LV, Hartmann M, Falavigna M, Traessel MA, Queiroz de Carvalho JE, d'Avila D, Saitovitch D, and Neto SG
- Subjects
- Adult, Antiviral Agents therapeutic use, Cystostomy, Cytomegalovirus Infections drug therapy, Duodenum surgery, Ganciclovir therapeutic use, Humans, Immunosuppressive Agents therapeutic use, Kidney Transplantation immunology, Male, Pancreas Transplantation immunology, Pancreatectomy methods, Postoperative Complications, Diabetes Mellitus, Type 1 surgery, Diabetic Nephropathies surgery, Diabetic Nephropathies therapy
- Abstract
Pancreas transplantation is currently the only known therapy to restore glycemic metabolism in type 1 diabetic patients. Its most prevalent indication is in association with kidney transplantation (simultaneous pancreas and kidney transplantation SPK) for patients with type 1 diabetes mellitus (DM1) and nephropathy, who are under dialysis treatment. Surgical reinterventions, especially those resulting from complications of bladder exocrine pancreatic drainage, are associated with considerable morbidity and mortality. In this report, we present a clinical case of a 31-year-old Caucasian man with DM1 from 12 years of age and hemodialysis for 2 years before undergoing SPK 2 years prior. He then developed massive hematuria owing to a bleeding duodenal graft ulcer. The use of a segmental pancreatic technique with pancreaticocystostomy for exocrine pancreatic drainage allowed the maintenance of the graft and an euglycemic state in the patient, free of exogenous insulin., (Copyright (c) 2010 Elsevier Inc. All rights reserved.)
- Published
- 2010
- Full Text
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