Whole-genome Sequencing Analysis of Bile Tract Cancer Reveals Mutation Characteristics and Potential Biomarkers.

Background/aim: Bile tract cancer (BTC) is a malignant tumor with a poor prognosis. Recent studies have reported the heterogeneity of the genomic background and gene alterations in BTC, but its genetic heterogeneity and molecular profiles remain poorly understood. Whole-genome sequencing may enable the identification of novel actionable gene mutations involved in BTC carcinogenesis, malignant progression, and treatment resistance.

Reappraisal of carcinoma in situ residue at the bile duct margin: a single-center review of 681 patients with perihilar cholangiocarcinoma.

Background: A histologically involved surgical margin (R1) is often observed after resection for cholangiocarcinoma. Compared with a negative margin (R0), R1 with invasive carcinoma (R1inv) markedly worsens survival, whereas the prognostic effect of R1 with carcinoma in situ (R1cis) remains controversial.

Methods: Patients who underwent resection for perihilar cholangiocarcinoma between 2002 and 2019 were retrospectively reviewed.

A multi-center, open-label, randomized clinical trial evaluating the preventive effect of perampanel on craniotomy-induced epileptogenesis in seizure-naive patients with supratentorial brain tumors: study protocol for a GRAMPAS trial.

Background: Early seizures after craniotomy are significant perioperative complications that can adversely impact patient outcomes. Despite current guidelines advising against the routine use of antiseizure drugs for seizure after craniotomy prevention due to limited efficacy data, many clinicians continue prescribing them. This discrepancy highlights the need for robust evidence to guide clinical practice.

Short RP Interval and Long PR Interval: What Is the Cardiac Rhythm?

Marked first-degree atrioventricular block with a PR interval ≥500 ms is rare, leading to unusual P-wave placement. In this case, the P waves immediately after the QRS waves complicated rhythm interpretation. Close attention to P-wave morphology and fused premature ventricular complexes can be important for a proper diagnosis.

Association of Baseline Mitral Valve Area With Procedural and Clinical Outcomes of Mitral Transcatheter Edge-to-Edge Repair: Insights From the OCEAN-Mitral Registry.

Background: A small mitral valve area (MVA) is one of the challenging anatomies for transcatheter edge-to-edge repair (TEER) for mitral regurgitation, but the relationship between baseline MVA and clinical outcomes remains unknown. This study aimed to evaluate the association of baseline MVA with procedural and clinical outcomes in patients undergoing TEER with MitraClip from the OCEAN-Mitral registry (Optimized Catheter Valvular Intervention-Mitral).

Methods: A total of 1768 patients undergoing TEER were divided into 3 groups according to baseline MVA: group 1: <4.