Publications by authors named "Gabriel Allo"

Backgroundaims: Metabolic dysfunction-associated steatotic liver disease (MASLD) is an independent risk factor for cardiovascular morbidity and mortality. Another critical risk factor in these patients is arterial hypertension (AH). Although it is estimated that 50% of MASLD patients are suffering from AH, 24-h ambulatory blood pressure monitoring (24-h-ABPM), the gold standard for diagnosing hypertension, is often neglected.

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The most common functional challenge after Ivor-Lewis esophagectomy is delayed emptying of the gastric conduit. One of the primary endoscopic treatment strategies is performing a pyloric dilatation. However, the effects of dilation have never been scientifically proven.

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Background: Acute decompensation (AD) in patients with liver cirrhosis is associated with a dramatic deterioration in prognosis. Immediate initiation of appropriate recompensation measures is essential to improve patient's outcome, although objective parameters for evaluating the success of recompensation are still lacking. Spleen stiffness measurements (SSM) have emerged as promising non-invasive tool to assess clinically significant portal hypertension (CSPH), which is the main driver of acute decompensation.

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Background: Combined Immuno-chemotherapy consisting of gemcitabine, cisplatin and the programmed death-ligand one inhibitor durvalumab (GCD) is the new standard of care for patients with biliary tract cancers (BTC) based on positive results of the TOPAZ-1 study.

Objective: We here evaluated the efficacy and safety of GCD for BTC in a German multicenter real-world patient cohort.

Methods: Patients with BTC treated with GCD from 9 German centers were included.

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Article Synopsis
  • The study investigates the necessary number of emergency endoscopies required for endoscopists to achieve proficiency in managing upper gastrointestinal bleeding (UGIB).
  • Analyzing data from 787 cases over several years, the research found that treatment failure rates significantly decreased after performing a certain number of procedures.
  • It concludes that endoscopists should complete at least 20 emergency procedures to be deemed proficient, and ideally 50 for advanced qualification, to enhance their skills and confidence in treating UGIB.
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Background/aims: While current guidelines recommend performing endoscopy within 24 h in case of acute upper gastrointestinal bleeding (AUGIB), the precise timing remains an issue of debate. Lactate is an established parameter for risk stratification in a variety of medical emergencies. This study evaluated the predictive ability of elevated lactate levels in identifying patients with UGIB, who may benefit from emergent endoscopy.

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Article Synopsis
  • * Researchers analyzed videos for 125 bleeding episodes and 103 normal tissues, using a neural network model (Inception V3) that leveraged transfer learning for training.
  • * The CNN achieved a detection accuracy of 90.6%, indicating it could enhance diagnostic speed and accuracy in clinical settings for interpreting capsule endoscopy results.
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Early risk stratification is mandatory in acute upper gastrointestinal bleeding (AUGIB) to guide optimal treatment. Numerous risk scores were introduced, but lack of practicability led to limited use in daily clinical practice. Lactate clearance is an established risk assessment tool in a variety of diseases, such as trauma and sepsis.

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Background: Upper gastrointestinal bleeding (UGIB) from malignancies is associated with a poor outcome. Only a small number of studies on gastrointestinal tumor bleeding have been published so far, focusing mainly on bleeding from gastric cancer. Since the information on patients with UGIB from esophageal cancer appears insufficient, this study aimed to present clinical and endoscopic findings, treatment options as well as clinical outcomes such as rebleeding and survival of those patients.

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Background And Aims: Hepatocellular carcinoma (HCC) surveillance in patients at risk is strongly recommended and usually performed by ultrasound (US) semiannually with or without alfa-fetoprotein (AFP) measurements. Quality parameters except for surveillance intervals have not been strictly defined. We aimed to evaluate surveillance success and risk factors for surveillance failure.

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Background: Predictors of poor outcome associated with variceal bleeding remain suboptimal. In patients with cirrhosis, serum lactate combined with Model for End-Stage Liver Disease (MELD-LA) improved prediction across heterogeneous populations. However, prognostic properties have not yet been assessed in the context of variceal bleeding.

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Introduction: Use of risk scores for early assessment of patients with upper gastrointestinal bleeding (UGIB) is recommended by various guidelines. We compared Cologne-WATCH (C-WATCH) score with Glasgow-Blatchford score (GBS), Rockall score (RS), and pre-endoscopic RS (p-RS).

Methods: Patients with UGIB between January and December 2017 were retrospectively analyzed for 30-day mortality and composite endpoints risk of complications and need for intervention using areas under the receiver-operating characteristics curve (AUROC).

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Biliary tract cancers (BTC) are rare but aggressive. Due to limited anti-tumor effects of current second- and later-line treatment regimens, novel treatment options are required. Nanoliposomal irinotecan in combination with leucovorin and 5-fluorouracil (FOLFnal-IRI) achieved promising results as a second-line treatment in patients with pancreatic cancer, warranting further investigation in BTC.

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Adenoma detection rate (ADR) is a key quality indicator for colonoscopy; however, it is cumbersome to obtain. We investigated if detection rates (DRs) for adenomas, serrated polyps (SPs) and clinically relevant SP (crSPDR) can be accurately estimated by individualized DR ratios (DRRs) in a multicenter primary colonoscopy screening cohort of average-risk individuals. DRRs were calculated by dividing DRs for a certain polyp entity by polyp detection rate (PDR) for each endoscopist individually on the basis of his/her first 50 (DRR) and 100 (DRR) consecutive colonoscopies.

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Background: High cecal intubation rate (CIR) is associated with significant improved adenoma detection rate (ADR), however, self-reported CIR may be overestimated and inadequate documentation of cecal intubation is associated with a lower polyp detection rate compared to clear documentation. We aimed to investigate if ileal intubation may be associated with higher detection rates (DR) for right-sided conventional adenomas (cAD) and serrated polyps (SP) compared to cecal intubation in a large screening colonoscopy cohort.

Material And Methods: Retrospective analysis of individuals ≥50 years with average risk for colorectal cancer (CRC) who underwent screening colonoscopy between 01/01/2012 and 14/12/2016 at a tertiary academic hospital and six community-based private practices.

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Non-variceal upper gastrointestinal bleeding (NVUGIB) occurs frequently and is associated with a significant morbidity and mortality, especially in patients receiving antiplatelet or anticoagulant therapy (APT and ACT, respectively). We aimed to evaluate adherence to guideline recommendations published by European Society of Gastrointestinal Endoscopy (ESGE). Retrospective analysis of patients with NVUGIB und prior exposition to APT or ACT at a single university hospital between 01 January 2016 and 31 December 2017.

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