Self-directed learning quotient and common learning types of pre-medical students in Korea by the Multi-Dimensional Learning Strategy Test 2nd edition: a descriptive study.

This study aimed to find the self-directed learning quotient and common learning types of pre-medical students through the confirmation of 4 characteristics of learning strategies, including personality, motivation, emotion, and behavior. The response data were collected from 277 out of 294 target first-year pre-medical students from 2019 to 2021, using the Multi-Dimensional Learning Strategy Test 2nd edition. The most common learning type was a self-directed type (44.

Is partial hepatectomy a curable treatment option for hepatocellular carcinoma accompanied by cirrhosis? A meta-analysis and cure model analysis.

Backgrounds/aims: It is challenging to assess the efficacy of partial hepatectomy (PH) as a treatment option for patients with hepatocellular carcinoma (HCC) accompanied by cirrhosis. This study aimed to determine the cure fraction of PH for HCC accompanied by cirrhosis compared to that for HCC without cirrhosis.

Methods: A systematic review was performed on outcomes of previous studies that compared recurrence-free survival (RFS) after PH in patients with HCC with or without cirrhosis.

Newly appointed medical faculty members’ self-evaluation of their educational roles at the Catholic University of Korea College of Medicine in 2020 and 2021: a cross-sectional survey-based study.

This study aimed to investigate the degree to which newly appointed medical faculty members at the Catholic University of Korea are aware of Harden and Crosby’s 12 educational roles and to identify their preferred educational roles. A 12-item survey questionnaire was distributed to 110 participants, and 100 responses were included in the analysis. The respondents gave the highest score to “clinical or practical teacher” and the lowest score to “curriculum planner” for their current personal competencies.

Secondarily estimated cure fraction and five-year recurrence-free conditional survival probabilities among patients undergoing surgical resection for hepatocellular carcinoma presenting with minor gross vascular invasion.

Background: Surgical resection (SR) has been selectively applied in hepatocellular carcinoma (HCC) presenting with minor gross vascular invasion (mGVI) which is defined when tumor invasion is confined to second-order portal branches or segmental branches of hepatic vein. However, little data of long-term outcomes are available for supporting the role of SR as a potentially curable therapeutic option for HCC presenting with mGVI. This study is aimed to estimate a statistical cure fraction and the improvement of recurrence-free conditional survival (RFCS) over time among patients undergoing SR for HCC presenting with mGVI.

Innovative digital tools for new trends in teaching and assessment methods in medical and dental education.

With the goal of providing optimal care to patients, student-centered active learning and the development of clinical competency have become vital components of the education of future physicians capable of sustainably coping with future challenges. However, the shape of future medicine is dramatically changing based on advances in information and communication technology, and the current classroom model seems to have difficulties in fully preparing students for the future of medicine. New trends in teaching and assessment methods include computer-aided instruction, virtual patients, augmented reality, human patient simulations, and virtual reality for the assessment of students’ competency.

Value of surgical resection compared to transarterial chemoembolization in the treatment of hepatocellular carcinoma with portal vein tumor thrombus: A meta-analysis of hazard ratios from five observational studies.

Backgrounds/aims: Although systemic therapy is recommended in advanced hepatocellular carcinoma (HCC), treatment options for advanced HCC with portal vein tumor thrombosis (PVTT) are debatable. Recent studies have recommended other treatments, such as surgical resection (SR) and transarterial chemoembolization (TACE). Therefore, we performed a meta-analysis of hazard ratio (HR) for overall survival (OS) between the two modalities using previous reports in order to compare the two treatment options.

MicroRNAs associated with microvascular invasion in hepatocellular carcinoma and their prognostic impacts in patients undergoing hepatic resection.

Although microvascular invasion (McVI) has prognostic value for patients with hepatocellular carcinoma (HCC) who have undergone hepatic resection, few studies have investigated the relationship between McVI and the aberrant expression of microRNAs (miRNAs). The present study identified the miRNAs that were selectively expressed in HCC with McVI and investigated their prognostic value. Clinical data and the miRNA expression profiles of 372 patients with HCC were extracted from The Cancer Genome Atlas database.

Significantly different expression levels of microRNAs associated with vascular invasion in hepatocellular carcinoma and their prognostic significance after surgical resection.

Background: Although gross vascular invasion (VI) has prognostic significance in patients with hepatocellular carcinoma (HCC) who have undergone hepatic resection, few studies have investigated the relationship between gross VI and aberrant expression of microribonucleic acids (miRNAs and miRs). Thus, the objective of this study was to identify miRNAs selectively expressed in HCC with gross VI and investigate their prognostic significance.

Materials And Methods: Eligible two datasets (accession number: GSE20594 and GSE67140) were collected from the National Center for Biotechnology Information's (NCBI) Gene Expression Omnibus (GEO) database to compare miRNAs expression between HCC with and without gross VI.

Prognostic significance of microvascular invasion in tumor stage for hepatocellular carcinoma.

Background: The presence of microvascular invasion (McVI) in hepatocellular carcinoma (HCC) has been proposed as a cause of recurrence and poor survival, although this has not been officially emphasized in staging systems. Thus, we conducted a retrospective study to investigate the prognostic importance of McVI in tumor staging in patients with HCC who underwent hepatic resection.

Methods: A retrospective analysis was performed of patients who underwent hepatic resection for HCC at our center from 1994 to 2012.

Mucosa-associated lymphoid tissue (MALT) lymphoma as an unusual cause of malignant hilar biliary stricture: a case report with literature review.

Background: Biliary strictures at the hilum of the liver arise from heterogeneous etiologies. The majority is malignant entities, but some may have benign etiologies. It is difficult to distinguish between malignant and benign biliary strictures preoperatively.

Clinical characteristics of acute cholecystitis with elevated liver enzymes not associated with choledocholithiasis.

Aim/background: Elevated liver enzymes are observed occasionally in patients with acute cholecystitis who do not have choledocholithiasis. The etiology and mechanism of this phenomenon are not well known. We aimed to compare the clinical characteristics between acute cholecystitis with and without choledocholithiasis in patients with elevated liver enzymes.

Hyperbilirubinemia is a significant indicator for the severity of acute appendicitis.

Purpose: This study aims to reveal more effective clinical or laboratory markers for the diagnosis of acute appendicitis and to score the severity based on a sufficiently large number of patients with acute appendicitis.

Methods: We identified 1,195 patients with acute appendicitis after excluding those with other causes of hyperbilirubinemia among the 1,271 patients that underwent a laparoscopic or an open appendectomy between 2009 and 2010. A retrospective chart review of the medical records, including laboratory and histologic results, was conducted.

Clinical characteristics of ischemic colitis according to location.

Purpose: The aim of this study was to analyze various clinical characteristics of ischemic colitis according to its location.

Methods: The medical records of 92 cases of gastrointestinal ischemic colitis (IC) diagnosed at Bundang CHA Hospital from 1995 to 2008 were reviewed and analyzed retrospectively. The patients were diagnosed by using colonoscopic biopsies or laparotomy findings.

Risk factors for the clinical course of cholecystitis in patients who undergo cholecystectomy.

Backgrounds/aims: The aims of this study were to evaluate risk factors for acute cholecystitis that have been previously acknowledged and to evaluate several co-morbidities, such as hypertension, diabetes mellitus, cardiovascular disease, cerebrovascular accident and end-stage renal disease for which the prevalence rate has increased in the elderly.

Methods: We retrospectively reviewed 611 patients who underwent laparoscopic or open cholecystectomy for cholecystitis between January 2005 and January 2010. The relationships between the clinical outcomes and the clinico-demographic factors were analyzed by univariate and multivariate analyses.

Laparoscopic treatment of appendicovesical fistula.

A 23-year-old man had a history of intermittent episodes of urinary tract infection with associated low abdominal pain for 15 years. Persistent bacteriuria even with prolonged antibiotics was the reason why he was referred to our hospital. Laboratory tests were normal except pyuria and growth of Escherichia coli in the urinary samples.