Publications by authors named "Mandorfer M"

Background And Aims: Around 750,000 patients per year will be cured of HCV infection until 2030. Those with compensated advanced chronic liver disease remain at risk for hepatic decompensation and de novo HCC. Algorithms have been developed to stratify risk early after cure; however, data on long-term outcomes and the prognostic utility of these risk stratification algorithms at later time points are lacking.

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Background And Aims: Porto-sinusoidal vascular disorder (PSVD) is a rare vascular liver disorder characterised by specific histological findings in the absence of cirrhosis, which is poorly understood in terms of pathophysiology. While elevated hepatic copper content serves as diagnostic hallmark in Wilson disease (WD), hepatic copper content has not yet been investigated in PSVD.

Methods: Patients with a verified diagnosis of PSVD at the Medical University of Vienna and available hepatic copper content at the time of diagnosis of PSVD were retrospectively included.

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Background: Portal hypertension (PH) resulting from static and dynamic intrahepatic changes drives liver-related complications even after removing the underlying aetiological factor.

Objective: We investigated the impact of inflammation on the dynamic component of PH during disease regression in animal models of toxin-induced cirrhosis and patients with alcohol-related cirrhosis.

Methods: In mice, cirrhosis was induced via toxin application for 12 weeks followed by toxin-withdrawal allowing for one or 2 weeks of regression.

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Background And Aims: Data on the effectiveness of classical non-selective beta-blockers (cNSBB, i.e., propranolol and nadolol) versus carvedilol in patients with cirrhosis are scarce.

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Article Synopsis
  • The study focused on identifying unique metabolomic signatures in patients with porto-sinusoidal vascular disorder (PSVD) and cirrhosis to improve diagnosis.
  • Serum samples from healthy volunteers and patients with PSVD or cirrhosis were analyzed using advanced techniques like liquid chromatography-mass spectrometry, identifying significant metabolic changes linked to PSVD.
  • Machine learning models were developed to distinguish PSVD from cirrhosis and healthy controls; key metabolites like taurocholic acid showed strong potential for non-invasive diagnostic use.
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Background: Endoscopic retrograde cholangiopancreatography (ERCP) still has a relatively high complication rate, underscoring the importance of high-quality training. Despite existing guidelines, real-world data on training conditions remain limited. This pan-European survey aims to systematically explore the perceptions surrounding ERCP training.

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Current guidelines recommend reflex testing for hepatitis D virus (HDV) coinfection in hepatitis B surface antigen (HBsAg)-positive patients over risk-factor based screening. We aimed to evaluate the feasibility and diagnostic yield of reflex anti-HDV testing at a Central European tertiary care center. We retrospectively included 560 consecutive patients who had a recorded (first) positive HBsAg test result at the Vienna General Hospital between 2018 and 2022.

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  • The LiverRisk score is a proposed blood test aimed at estimating liver stiffness and identifying patients at risk for compensated advanced chronic liver disease (cACLD) and liver-related events without prior known liver issues.
  • In a study involving nearly 7,500 patients, the score's diagnostic performance was evaluated against established methods like FIB-4 and APRI, revealing that while it moderately correlates with liver stiffness measurements, it tends to underestimate them.
  • Although the LiverRisk score demonstrated decent accuracy for predicting cACLD and hepatic decompensation, its limitations include a low negative predictive value, indicating it might not effectively rule out disease in some patients.
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Background & Aims: Homozygous Pi∗Z mutation in alpha-1 antitrypsin (Pi∗ZZ genotype) predisposes to pulmonary loss-of-function and hepatic gain-of-function injury. To facilitate selection into clinical trials typically targeting only 1 organ, we systematically evaluated an international, multicenter, longitudinal, Pi∗ZZ cohort to uncover natural disease course and surrogates for future liver- and lung-related endpoints.

Methods: Cohort 1 recruited 737 Pi∗ZZ individuals from 25 different centers without known liver comorbidities who received a baseline clinical and laboratory assessment as well as liver stiffness measurement (LSM).

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  • The ELIMINATE project aimed to reconnect individuals in Eastern Austria with previously documented hepatitis C virus (HCV) infections to medical care, supporting global elimination goals set by the WHO.
  • Researchers reviewed lab records from 2008 to 2020, identifying 5,695 individuals, but faced challenges such as 34% having died and 13% lacking contact information.
  • Ultimately, they successfully contacted 617 individuals, leading to a 64.3% treatment initiation rate, and confirmed an HCV cure in 326 people, demonstrating the effectiveness of targeted outreach strategies in addressing HCV.
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  • Cirrhosis creates a proinflammatory environment, and the study aims to analyze specific inflammation patterns across various causes of compensated cirrhosis in both animal models and human patients.
  • In rat models, inflammation differed based on the cirrhosis cause, with choline-deficient high-fat diet rats showing the highest proinflammatory gene expression, while in humans, different liver diseases exhibited varying levels of inflammatory markers.
  • Despite common upregulation of proinflammatory pathways in all types of liver disease, the impact on fibrosis and portal hypertension varied based on the specific etiology of the disease.
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  • Researchers aimed to evaluate spleen stiffness measurement (SSM) as a standalone non-invasive test for clinically significant portal hypertension (CSPH) in patients with compensated advanced chronic liver disease (cACLD) and compare it to the existing ANTICIPATE±NASH model.
  • The study involved 407 patients recruited from 16 expert centers in Europe, utilizing various non-invasive tests alongside hepatic venous pressure gradient measurements to assess CSPH probability.
  • The findings indicated the potential for SSM to enhance diagnostic capabilities, as models were created to evaluate its effectiveness and discriminative ability compared to existing methods using binary logistic regression analysis.
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Background And Aims: We aimed to characterise insulin-like growth factor-1 (IGF-1) signalling in patients with advanced chronic liver disease (ACLD).

Methods: Consecutive patients undergoing hepatic venous pressure gradient [HVPG] measurement were prospectively included. Clinical stages were defined as follows: probable ACLD (pACLD): liver stiffness ≥10 kPa and HVPG ≤5 mmHg, S0: mild PH (HVPG 6-9 mmHg), S1: clinically significant PH (CSPH), S2: CSPH with varices, S3: past variceal bleeding, S4: past/current non-bleeding hepatic decompensation and S5: further decompensation.

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Article Synopsis
  • - The study aimed to understand the natural history and prognostic factors of porto-sinusoidal vascular disorder (PSVD) by analyzing a large cohort of 587 patients across 27 centers, finding that the majority were asymptomatic at diagnosis, but many experienced complications related to portal hypertension.
  • - Over a median follow-up of 68 months, 8.5% of patients underwent liver transplantation, while 19% died, highlighting significant risks like portal hypertension-related bleeding and ascites, as well as the impact of age and liver function on prognosis.
  • - The findings indicate that the severity of underlying conditions and liver/renal function significantly influence survival chances, leading to the development of a nomogram for more accurate prognosis prediction in
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  • The study investigates the role of histamine in advanced chronic liver disease (ACLD) and its potential as a prognostic marker.
  • It includes 251 patients with ACLD, finding that higher plasma histamine levels correlate with circulatory dysfunction, but levels do not significantly vary across different stages of liver disease.
  • Elevated histamine levels are independently associated with an increased risk of acute-on-chronic liver failure (ACLF) or liver-related death over a median follow-up of 29.2 months.
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  • This study looked at two ways to measure how stiff the liver is, which helps doctors see if there is damage or disease in the liver.
  • They compared the results of these two methods, VCTE and ElastQ, using data from 840 people.
  • The findings showed that the differences in results got bigger as liver problems worsened, and some factors like BMI and distance between the skin and liver affected the measurements differently.
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  • Metabolic dysfunction-associated steatotic liver disease (MASLD) and steatohepatitis (MASH) are prevalent in obese individuals and may improve with metabolic/bariatric surgery (MBS).
  • A study of 93 patients showed significant reductions in liver stiffness and indicators of liver health three months after MBS, correlating with weight loss.
  • Improvements in liver conditions were evident as early as three months post-surgery, indicated by lower liver stiffness measurements and liver injury markers.
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  • - The study investigated zinc and selenium deficiency in 309 patients with advanced chronic liver disease (ACLD) and found that 73% were deficient in zinc and 63% in selenium, indicating a high prevalence of these deficiencies in this population.
  • - It was observed that patients with decompensated ACLD had significantly lower levels of both trace elements compared to those with compensated ACLD, and there were strong correlations between zinc/selenium levels and disease severity indicators like MELD and HVPG.
  • - Low levels of zinc and selenium were independently associated with worsening liver-related events, including hepatic decompensation and liver-related death, suggesting that future research should explore the benefits of zinc/selenium supplementation for these patients.
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Background And Aims: Alpha-1 antitrypsin deficiency is an inherited disorder caused by alpha-1 antitrypsin (AAT) mutations. We analysed the association between alcohol intake and liver-related parameters in individuals with the heterozygous/homozygous Pi*Z AAT variant (Pi*MZ/Pi*ZZ genotype) found in the United Kingdom Biobank and the European Alpha1 liver consortium.

Methods: Reported alcohol consumption was evaluated in two cohorts: (i) the community-based United Kingdom Biobank (17 145 Pi*MZ, 141 Pi*ZZ subjects, and 425 002 non-carriers [Pi*MM]); and (ii) the European Alpha1 liver consortium (561 Pi*ZZ individuals).

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Portal vein thrombosis (PVT) refers to the development of a non-malignant obstruction of the portal vein, its branches, its radicles, or a combination. This Review first provides a comprehensive overview of all aspects of PVT, namely the specifics of the portal venous system, the risk factors for PVT, the pathophysiology of portal hypertension in PVT, the interest in non-invasive tests, as well as therapeutic approaches including the effect of treating risk factors for PVT or cause of cirrhosis, anticoagulation, portal vein recanalisation by interventional radiology, and prevention and management of variceal bleeding in patients with PVT. Specific issues are also addressed including portal cholangiopathy, mesenteric ischaemia and intestinal necrosis, quality of life, fertility, contraception and pregnancy, and PVT in children.

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  • In a study of 182 patients with advanced hepatocellular carcinoma (HCC) receiving immune checkpoint inhibitors (ICIs), liver function was evaluated over 6 months, showing that 56% improved or stabilized after 3 months.* -
  • After 6 months, similar outcomes were noted, with improved liver function linked to better overall survival rates, highlighting the effectiveness of ICIs compared to only 34% improvement in patients treated with sorafenib.* -
  • Notably, 46% of patients with worse liver function at baseline showed improvement after 3 months on ICIs, indicating the potential for recovery even in more severe cases.*
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