Publications by authors named "Dultz G"

The non-invasive assessment of disease severity remains pivotal in patients with chronic liver disease (CLD) as it has wide implications in predicting liver-related complications or death. Shear-wave elastography (SWE) is an emerging ultrasound-based method to non-invasively measure liver stiffness. The aim of our study was to evaluate two-dimensional (2D) and point (p) SWE to predict the presence of esophageal varices (EV) or clinically significant portal hypertension (CSPH).

View Article and Find Full Text PDF

Background: Hospitalized patients with end-stage liver disease are at risk of malnutrition, reduced body function, and cognitive impairment due to HE. This combination may have an impact on in-hospital falls and mortality. The purpose of this study was to identify factors associated with the risk of falls and to analyze the consequences regarding in-hospital mortality.

View Article and Find Full Text PDF
Article Synopsis
  • This study compares two methods for drying endoscopes after disinfection: a standard drying method (SD) using an endoscope washer-disinfector (EWD) and a novel drying method (ND) using a special device with laminar and turbulent airflow.
  • Results showed that the ND was more effective, with no residual water left in endoscope channels compared to 90% in the SD group, and significantly less bacterial contamination after 14 days.
  • The ND also reduced drying time from over 16 minutes to under 6 minutes, highlighting its efficiency and potential as a better alternative for reprocessing flexible endoscopes.
View Article and Find Full Text PDF
Article Synopsis
  • A study assessed a new ultrasound-based algorithm for determining when to remove pancreatic stents placed to prevent post-ERCP pancreatitis, aiming to minimize unnecessary X-ray imaging.
  • Out of 88 patients, the ultrasound approach successfully reduced the need for X-rays by 74%, accurately visualizing stents in 81% of cases but with limited specificity.
  • The authors recommend implementing the ultrasound algorithm with training for experienced personnel due to challenges with visualizing shorter stents.
View Article and Find Full Text PDF

Background And Aims: Data on the prevalence and characteristics of so-called rare HCV genotypes (GTs) in larger cohorts is limited. This study investigates the frequency of rare GT and resistance-associated substitutions and the efficacy of retreatment in a European cohort.

Methods: A total of 129 patients with rare GT1-6 were included from the European resistance database.

View Article and Find Full Text PDF

Study Objective: To assess the efficacy of an ECG-based method called thoracic impedance pneumography to reduce hypoxic events in endoscopy.

Design: This was a single center, 1:1 randomized controlled trial.

Setting: The trial was conducted during the placement of percutaneous endoscopic gastrostomy (PEG).

View Article and Find Full Text PDF

Infectious gastroenteritis is a common reason for consulting a physician. Although most cases of gastrointestinal illness are self-limiting, the identification of the etiologic pathogen by stool specimen analysis is important in cases of more severe illness and for epidemiological reasons.Due to the broad range of causative pathogens, the conventional examination of a stool specimen is labour-intensive and usually requires different diagnostic methods.

View Article and Find Full Text PDF

Background & Aims: Voxilaprevir/velpatasvir/sofosbuvir (VOX/VEL/SOF) is highly effective for re-treatment of direct-acting antiviral (DAA)-experienced patients with chronic HCV infection. In the present study, predictors of virologic treatment response were analyzed in an integrative analysis of three large real-world cohorts.

Methods: Consecutive patients re-treated with VOX/VEL/SOF after DAA failure were enrolled between 2016 and 2021 in Austria, Belgium, Germany, Italy, Spain and Switzerland.

View Article and Find Full Text PDF
Article Synopsis
  • Recent studies show that ongoing HCV infections are mainly transmitted through drug use and sexual behaviors, particularly among men who have sex with men (MSM), but the details of transmission and infection progression remain unclear.
  • After following 161 patients with recently acquired HCV infections over 10 years, it was found that most were male MSM, many of whom were also HIV-positive, and their main transmission risks were sexual behavior and drug use.
  • The findings indicate low spontaneous clearance rates of the infection, significant phylogenetic clustering among MSM cases, and a rise in specific HCV genotypes over time, highlighting the need for targeted interventions in high-risk groups.
View Article and Find Full Text PDF
Article Synopsis
  • The study aimed to evaluate olfactory dysfunction (OD) in both SARS-CoV-2 positive and negative patients to see if it could help identify COVID-19 infections early.
  • Results showed that OD was present in 65.6% of COVID-19 positive patients and was more common in males and those with certain health conditions, with a notable increase in cases linked to the Delta variant compared to Omicron.
  • Despite these findings, the sensitivity (69%) and specificity (64%) of OD as a diagnostic tool for identifying COVID-19 were deemed insufficient for it to be used routinely in clinical settings.
View Article and Find Full Text PDF

Background & Aims: Data on the long-term persistence of HCV resistance-associated substitutions (RASs) after treatment with direct-acting antivirals (DAAs) are limited. This study evaluated the persistence of NS3, NS5A, and NS5B RASs for up to 5 years after the end of treatment (EOT).

Methods: We included samples from 678 individuals with an HCV genotype (GT) 1 or 3 infection and virologic DAA treatment failure collected in the European Resistance Database.

View Article and Find Full Text PDF

The Q80K polymorphism in the NS3-4A protease of the hepatitis C virus is associated with treatment failure of direct-acting antiviral agents. This polymorphism is highly prevalent in genotype 1a infections and stably transmitted between hosts. Here, we investigated the underlying molecular mechanisms of evolutionarily conserved coevolving amino acids in NS3-Q80K and revealed potential implications of epistatic interactions in immune escape and variants persistence.

View Article and Find Full Text PDF

Background: Before performing endoscopy to remove prophylactic pancreatic stents placed in patients with high risk of post-endoscopic retrograde cholangiopancreatography pancreatitis (PEP), X-ray imaging is recommended to confirm the stents position in the pancreatic duct.

Objectives: The aim of the present study was to investigate the feasibility of prophylactic pancreatic stent detection by transabdominal ultrasonography, to reduce the burden of X-ray imaging, which is currently the golden standard.

Methods: All patients who received a pancreatic stent for PEP prophylaxis were included in the present prospective trial.

View Article and Find Full Text PDF

Background And Aims:  Liver cirrhosis is a systemic disease that substantially impacts the body's physiology, especially in advanced stages. Accordingly, the outcome of patients with cirrhosis requiring intensive care treatment is poor. We aimed to analyze the impact of cirrhosis on mortality of intensive care unit (ICU) patients compared to other frequent chronic diseases and conditions.

View Article and Find Full Text PDF

Chronic viral hepatitis is associated with substantial morbidity and mortality worldwide. The aim of our study was to assess the ability of point shear-wave elastography (pSWE) using acoustic radiation force impulse imaging for the prediction of the following liver-related events (LREs): new diagnosis of HCC, liver transplantation, or liver-related death (hepatic decompensation was not included as an LRE). pSWE was performed at study inclusion and compared with liver histology, transient elastography (TE), and serologic biomarkers (aspartate aminotransferase to platelet ratio index, Fibrosis-4, FibroTest).

View Article and Find Full Text PDF

Background: Chronic hepatitis C virus (HCV) infections are causally linked with metabolic comorbidities such as insulin resistance, hepatic steatosis, and dyslipidemia. However, the clinical impact of HCV eradication achieved by direct-acting antivirals (DAAs) on glucose and lipid homeostasis is still controversial. The study aimed to prospectively investigate whether antiviral therapy of HCV with DAAs alters glucose and lipid parameters.

View Article and Find Full Text PDF

Inhibitors against the NS3-4A protease of hepatitis C virus (HCV) have proven to be useful drugs in the treatment of HCV infection. Although variants have been identified with mutations that confer resistance to these inhibitors, the mutations do not restore replicative fitness and no secondary mutations that rescue fitness have been found. To gain insight into the molecular mechanisms underlying the lack of fitness compensation, we screened known resistance mutations in infectious HCV cell culture with different genomic backgrounds.

View Article and Find Full Text PDF

Purpose:  Hepatic hydrothorax (HH) is defined as transudate in the pleural cavity in patients with decompensated liver cirrhosis (DC) without concomitant cardiopulmonary or pleural disease. It is associated with high short-term mortality. HH can evolve via translocation through diaphragmatic gaps.

View Article and Find Full Text PDF

Background: Treatment uptake for hepatitis C virus (HCV) infection in people who inject drugs (PWID) and patients on opioid substitution therapy (OST) is still low despite treatment guidelines that advocate the use of direct-acting antivirals (DAAs) in all patients. Our aim in this review was to investigate treatment outcomes among PWID and patients on OST in comparison to control cohorts.

Methods: A search of Embase, Medline, PubMed, and Web of Science (from October 2010 to March 2018) was conducted to assess sustained virologic response (SVR), discontinuation rates, adherence, and HCV reinfection in PWID and patients on OST.

View Article and Find Full Text PDF

Background: The use of an indwelling peritoneal catheter system in hospitalized patients with ascites could facilitate patient management by the prevention of repetitive abdominal paracentesis. Despite these possible benefits, the use of indwelling catheters is not widely established.

Objective: This retrospective study aimed to evaluate the feasibility, effectiveness and safety of the use of an indwelling catheter for ascites drainage in the clinical routine.

View Article and Find Full Text PDF

Background: Patients with chronic HCV infection are at increased risk of developing B-cell non-Hodgkin lymphoma (B-NHL). Regression of HCV-associated B-NHL (HCV-NHL) can be achieved through HCV eradication using interferon (IFN). However, only about two-thirds of patients with sustained virological response (SVR) also had a consecutive lymphoma response.

View Article and Find Full Text PDF

Objectives: The risk of post-ERCP pancreatitis (PEP) can be reduced effectively by the placement of a self dislodging pancreatic stent. The present study analyzed whether a prolonged interval until stent passage evaluation and removal of retained stents is associated with an increased risk for clinically relevant complications.

Methods: In the retrospective study 182 patients receiving a pancreatic stent for PEP prophylaxis were included and clinical data and complications until documented spontaneous stent dislodgement or removal were analyzed.

View Article and Find Full Text PDF

Background: With the aging of the hepatitis C virus (HCV)-infected patient cohort and the availability of highly effective and tolerable treatment regimens, an increasing number of elderly patients are now eligible for HCV therapy. This study investigated clinical and epidemiologic characteristics of elderly HCV-infected patients as well as the effectiveness and safety of available therapies.

Methods: Patients were enrolled into the German Hepatitis C Registry (DHC-R), a prospective, multicenter, real-world cohort study.

View Article and Find Full Text PDF

Background And Aims: The aim of the study was to evaluate the risk of hepatocellular carcinoma (HCC) development after treatment with direct-acting antivirals (DAAs) and to compare HCC occurrence in these patients with that among patients treated with interferon (IFN)-based therapies.

Methods: We analyzed a large cohort with chronic hepatitis C virus patients for the onset of new HCC after DAA treatment. A historical IFN-treated cohort was investigated for comparison.

View Article and Find Full Text PDF

Chronic hepatitis C virus (HCV) infection is a leading cause for orthotopic liver transplantation (OLT) in the U.S. We investigated characteristics of HCV-infected patients registered for OLT, and explored factors associated with mortality.

View Article and Find Full Text PDF