Ian Leipnitz

ORCID: 0000-0003-3327-3921
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About
Contact & Profiles
Research Areas
  • Organ Transplantation Techniques and Outcomes
  • Liver Disease and Transplantation
  • Liver Disease Diagnosis and Treatment
  • Pediatric Hepatobiliary Diseases and Treatments
  • Transplantation: Methods and Outcomes
  • Renal Transplantation Outcomes and Treatments
  • Hepatocellular Carcinoma Treatment and Prognosis
  • Hepatitis C virus research
  • Organ Donation and Transplantation
  • Hepatitis B Virus Studies
  • Clinical Nutrition and Gastroenterology
  • Pancreatic and Hepatic Oncology Research
  • Liver physiology and pathology
  • Diet and metabolism studies
  • Gastrointestinal disorders and treatments
  • Gastrointestinal Tumor Research and Treatment
  • Abdominal vascular conditions and treatments
  • Metabolism and Genetic Disorders
  • Vascular anomalies and interventions
  • Cholangiocarcinoma and Gallbladder Cancer Studies
  • Cancer Genomics and Diagnostics
  • thermodynamics and calorimetric analyses
  • Congenital Anomalies and Fetal Surgery
  • Pharmacological Effects and Toxicity Studies
  • Gallbladder and Bile Duct Disorders

Universidade Federal do Rio Grande do Sul
2013-2025

University of Auckland
2025

Hospital de Clínicas de Porto Alegre
2004-2023

Services Hospital
2023

Willis-Knighton Cancer Center
2020

Irmandade da Santa Casa de Misericórdia de São Paulo
2018-2019

Development Fund
2016

Santa Casa Hospital
2002-2015

Grupo Hospitalar Conceição
2004

Fundação Faculdade de Medicina
1999

Abstract More liver transplants (LT) are performed worldwide thanks to extended criteria donors (ECD). This is paralleled by a supposed increased risk of allograft failure (AF) at 90 and 365 days. study has been designed portray the LT practice investigate models AF prediction impact mitigation strategies for further improving graft patient outcomes. multicenter, international, non-competitive, observational two segment on consecutive LTs over periods (2017–2019 2022–2024). A steering...

10.1007/s13304-025-02078-4 article EN cc-by Updates in Surgery 2025-03-27

ABSTRACT BACKGROUND: Biliary fistula is one of the most common complications after liver resection and associated with significant morbidity mortality. One methods used to evaluate biliary fistulas White test, which consists injecting a lipid emulsion into bile duct. However, no standard technique for performing test has been published. AIMS: The aim this study was standardize in patients undergoing hepatectomies, without previous cholecystectomy, assess preliminary results. METHODS:...

10.1590/0102-6720202500007e1876 article EN cc-by ABCD Arquivos Brasileiros de Cirurgia Digestiva (São Paulo) 2025-01-01

Background. Factor V has never been compared to a validated early allograft dysfunction (EAD) definition. We aimed assess factor as biomarker of EAD and predictor graft loss after liver transplantation (LT). Methods. retrospectively assessed the serum levels on postoperative day 1 LT. Patients were divided according their into ≤36.1 U/mL > 36.1 groups. The primary outcome was within 1, 3, 6 months. secondary EAD, defined by Olthoff et al. Predictors outcomes identified multivariable...

10.1097/tp.0000000000002429 article EN Transplantation 2018-08-21

Background. Transarterial chemoembolization alone or in association with radiofrequency ablation is an effective bridging strategy for patients hepatocellular carcinoma awaiting a liver transplant. However, cost of this therapy may limit its utilization. This study was designed to evaluate the outcomes protocol involving transarterial embolization, percutaneous ethanol injection, both methods carcinomas prior transplantation. Methods. Retrospective review all consecutive adult who underwent...

10.1155/2016/9420274 article EN cc-by Gastroenterology Research and Practice 2015-12-27

Hepatopulmonary syndrome (HPS) is a complication of end stage liver disease (ESLD) and manifested by severe hypoxemia, which usually responds to transplantation (LT). As compared patients undergoing LT for other etiologies, with HPS present an increased risk postoperative morbidity mortality. There no effective treatment whose hypoxemia does not respond LT. This subset at highly death. are very few reports on the use extracorporeal membrane oxygenation (ECMO) in this setting rapid response....

10.1177/0391398821989067 article EN The International Journal of Artificial Organs 2021-01-21

ABSTRACT Background: Reliable measurement of basal energy expenditure (BEE) in liver transplant (LT) recipients is necessary for adapting requirements, improving nutritional status and preventing weight gain. Indirect calorimetry (IC) the gold standard measuring BEE. However, BEE may be estimated through alternative methods, including electrical bioimpedance (BI), Harris-Benedict Equation (HBE), Mifflin-St. Jeor (MSJ) that carry easier applicability lower cost. Aim: To determine which three...

10.1590/0102-6720201600030013 article EN ABCD Arquivos Brasileiros de Cirurgia Digestiva (São Paulo) 2016-09-01

PURPOSE: The oxidative stress is an important mechanism responsible for dysfunction after orthotopic liver transplantation (OLT). Glutathione (GSH) low levels cold storage render the grafts vulnerable to reperfusion injury. Aim of this study was evaluate GSH and oxidized glutathione (GSSG) concentrations, hepatocellular injury function in optimal suboptimal human OLT. METHODS: Liver biopsies were taken 33 patients before implant two hours reperfusion, allowing determination GSH, GSSG ratio...

10.1590/s0102-86502006000400007 article EN cc-by Acta Cirúrgica Brasileira 2006-08-01

Please note: The publisher is not responsible for the content or functionality of any supporting information supplied by authors. Any queries (other than missing content) should be directed to corresponding author article.

10.1111/ans.14299 article EN ANZ Journal of Surgery 2017-12-07
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