Publications by authors named "Fuat Saner"

There is an increasing recognition of the need for a specialized hepatohematology program in countries with a high prevalence of sickle cell disease. This program would be tailored specifically for patients with sickle cell disease, addressing the unique challenges they face, including the management of liver and biliary complications, and hematological issues associated with their condition. By integrating hepatology and hematology expertise, we can improve knowledge of liver SCD-related diseases, and patient outcomes, enhance care coordination, and provide comprehensive management strategies for this vulnerable population.

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Acute liver failure (ALF) is defined as the loss of hepatic function in conjunction with hepatic encephalopathy and coagulopathy. There is histological evidence of profound hepatocyte damage. If it is not aggressively managed, ALF can be fatal within a few days.

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Given the increasing demand of patients requiring liver transplants who are 70 years or older and may have health conditions, this study aimed to assess the outcomes of recipients of living donor liver transplants (LDLTs) in this age group. We conducted an analysis using a prospective registry that included all recipients of LDLT from January 2011 to May 2023. Patients were divided into 2 age groups, 18-69 years and 70 years or older, and their short-term and long-term outcomes were compared.

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Article Synopsis
  • The study evaluates ChatGPT's ability to use the Clavien-Dindo classification (CDC) for grading postoperative complications through AI and Natural Language Processing (NLP).
  • ChatGPT 4 outperformed its predecessor in accurately defining the CDC and generating clinical examples, achieving 99% agreement with minor errors, and 97% accuracy for single complications.
  • The results indicate that ChatGPT 4 can effectively extract and analyze complications from both fictional and real-world discharge summaries, suggesting it could be a valuable tool in clinical settings for capturing and analyzing CDC data in the future.
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Purpose: The Sequential Organ Failure Assessment (SOFA) score plays a crucial role in intensive care units (ICUs) by providing a reliable measure of a patient's organ function or extent of failure. However, the precise assessment is time-consuming, and daily assessment in clinical practice in the ICU can be challenging.

Methods: Realistic scenarios in an ICU setting were created, and the data mining precision of ChatGPT 4.

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Acute liver failure (ALF) is an acute liver dysfunction with coagulopathy and HE in a patient with no known liver disease. As ALF is rare and large clinical trials are lacking, the level of evidence regarding its management is low-moderate, favoring heterogeneous clinical practice. In this international multicenter survey study, we aimed to investigate the current practice and management of patients with ALF.

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Background: Esophagectomy carries a high risk of morbidity and mortality compared to other major surgeries. With the aim of creating an easy-to-use clinical preoperative risk assessment tool and to validate previously described risk factors for major complications following surgery, esophagectomies at two tertiary medical centers were analyzed.

Methods: A total of 450 patients who underwent esophagectomy for esophageal carcinoma at the University Medical Centre, Hamburg, or at the Medical Center University Duisburg-Essen, Germany (January 2008 to January 2020) were retrospectively analyzed.

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Acute-on-chronic liver failure (ACLF) refers to the deterioration of liver function in individuals who already have chronic liver disease. In the setting of ACLF, liver damage leads to the failure of other organs and is associated with increased short-term mortality. Optimal medical management of patients with ACLF requires implementing complex treatment strategies, often in an intensive care unit (ICU).

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Article Synopsis
  • Acute liver failure (ALF) is a serious condition that occurs suddenly in people without pre-existing liver issues, featuring symptoms like bleeding problems and brain dysfunction.
  • It has a high risk of severe health complications and requires careful monitoring of the patient’s blood circulation, metabolism, and infection status.
  • Prompt evaluation and management in a specialized liver transplant unit are essential to determine which patients may need a liver transplant to improve their condition.
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Patients with end-stage liver disease (ESLD) undergoing liver transplantation (LT) are prone to thromboses both while on the waiting list and in the perioperative period. This hypercoagulability is associated with significant endothelial dysfunction (ED) due to nitric oxide dysregulation. ED and increased thrombin generation are the main factors responsible for this hypercoagulability.

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Klatskin tumors have a bad prognosis despite aggressive therapy. The role and extent of lymph node dissection during surgery is a matter of discussion. This retrospective study analyzes our current experience of surgical treatments in the last decade.

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Primary sclerosing cholangitis (PSC) is characterized by inflammation of the whole bile duct system. Liver transplantation is only approved as a curative treatment when it comes to end-stage liver disease. The aim of our study was to assess morbidity, survival rates and PSC recurrence and the impact of donor characteristics in long-term follow-up.

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Since 1940 albumin has been used worldwide and is widely available commercially since this time. However, a meta-analysis in 1998 challenged the use of albumin and identified a trend toward higher mortality in critically ill patients who had received albumin. Since then, many studies including multicenter randomized controlled trials have been carried out investigating the safety and efficacy of albumin treatment in different patient cohorts.

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Background: We sought to establish consensus on the essential skills, knowledge, and attributes that a liver transplant (LT) anesthesiologist should possess in a bid to help guide the further training process.

Methods: Consensus was achieved via a modified Delphi methodology, surveying 15 identified international experts in the fields of LT anesthesia and critical care.

Results: Key competencies were identified in preoperative management and optimization of a potential LT recipient; intraoperative management, including hemodynamic monitoring; coagulation and potential crisis management; and postoperative intensive and enhanced recovery care.

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In this review, we describe the major milestones in the development of organ transplantation with a specific focus on hepatic transplantation. For many years, the barriers preventing successful organ transplantation in humans seemed insurmountable. Although advances in surgical technique provided the technical ability to perform organ transplantation, limited understanding of immunology prevented successful organ transplantation.

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Background: The proper management of patients being treated with platelet aggregation inhibitors or anticoagulant drugs is a common clinical problem for both elective and emergency procedures in gastroenterology and visceral surgery. The essential matters that must be kept in mind in this situation are the hemorrhagic risk of the procedure, the indication for anticoagulation, and the pharmacology of anticoagulant drugs and platelet aggregation inhibitors.

Methods: This review is based on publications retrieved by a selective search in PubMed and on the guidelines of the relevant specialist societies.

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Abrupt return to normothermia has been shown a genuine factor contributing to graft dysfunction after transplantation. This study tested the concept to mitigate reperfusion injury of liver grafts by gentle warming-up using ex vivo machine perfusion prior to reperfusion. In a single center randomized controlled study, livers were assigned to conventional static cold storage (SCS) alone or to SCS followed by 90 min of ex vivo machine perfusion including controlled oxygenated rewarming (COR) by gentle and protracted elevation of the perfusate temperature from 10°C to 20°C.

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Background: The ROTEM™ clot lysis index, describing the decrease in firmness of a clot with time, predicts mortality in various settings. The variability of the clot lysis index in surgical procedures and the involved pathophysiological mechanisms are unknown. We therefore compared pre- and postoperative clot lysis indices in liver transplantation (LTX) procedures, determined the eventual association with mortality, and investigated the mechanisms underlying decreased clot lysis index using inhibitors of fibrinolysis and clot retraction, respectively.

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Perioperative care of patients undergoing liver transplantation (LT) is very complex. Metabolic derangements, hypothermia, coagulopathy and thromboses, severe infections, and graft dysfunction can affect outcomes. In this manuscript, we discuss several perioperative problems that can be encountered in LT recipients.

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Background: Patients with liver cirrhosis develop symptoms comparable to those of patients with sepsis, who have increased total vascular compliance, which may cause blood pooling in the venous pool. No previous studies have evaluated the effect of using norepinephrine on the intravascular blood volume. We investigated the norepinephrine infusion's effect on the mean systemic filling pressure, venous return, and cardiac preload in patients undergoing liver transplantation.

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Article Synopsis
  • The study aimed to determine if CT-derived fractional flow reserve (CT-FFR) can effectively differentiate between significant and non-significant coronary stenosis in patients being evaluated for liver transplantation (LT).
  • A total of 201 patients underwent coronary computed tomography angiography (CCTA) to check for coronary artery disease (CAD), with follow-up invasive coronary angiography (ICA) for those with suspected significant stenosis.
  • Results showed that CT-FFR had good diagnostic accuracy, indicating that it may be a valuable noninvasive tool to reduce the need for invasive procedures in high-risk LT candidates.
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Background: In hepatocellular carcinoma (HCC) patients, intraarterial therapies are regularly employed as a bridge to liver transplantation to prevent tumor progression during waiting time. Objective of this study was to compare HCC recurrence after liver transplantation following TACE or radioembolization bridging treatment.

Methods: We retrospectively analyzed prospectively collected data on 131 consecutive HCC patients who underwent liver transplantation between January 2007 and December 2017 at our liver transplant center (radioembolization n = 44, TACE n = 87).

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