Clinical Characteristics and Incidence of Perianal Diseases in Patients With Ulcerative Colitis.

Purpose: While perianal disease (PAD) is a characteristic of patients with Crohn disease, it has been overlooked in patients with ulcerative colitis (UC). Thus, our study aimed to analyze the incidence and the clinical features of PAD in patients with UC.

Methods: We reviewed the data on 944 patients with an initial diagnosis of UC from October 2003 to October 2015.

Comparison of partially-absorbable lightweight mesh with heavyweight mesh for inguinal hernia repair: multicenter randomized study.

Purpose: Prosthetic mesh is widely used for inguinal hernia repair; however, pain and stiffness can develop. This study was a prospective, multicenter, single-blind, randomized trial to assess postoperative pain and quality of life according to mesh type after inguinal hernia repair.

Methods: Forty-seven patients who underwent Lichtenstein repair for unilateral inguinal hernia with prosthetic mesh were enrolled and randomly allocated to the partially-absorbable lightweight mesh (LW group, n = 24) or heavyweight mesh group (HW group, n = 23).

Comparative Evaluation of the Efficacy of Polyethylene Glycol With Ascorbic Acid and an Oral Sulfate Solution in a Split Method for Bowel Preparation: A Randomized, Multicenter Phase III Clinical Trial.

Background: An adequate level of bowel preparation before colonoscopy is important. The ideal agent for bowel preparation should be effective and tolerable.

Objective: The purpose of this study was to compare the clinical efficacy and tolerability of polyethylene glycol with ascorbic acid and oral sulfate solution in a split method for bowel preparation.

Persistent Bleeding Following a Stapled Hemorrhoidopexy.

A stapled hemorrhoidopexy (SH) is widely used for treatment of patients with grades III and IV hemorrhoids. The SH is easy to perform, is associated with less pain and allows early return to normal activities. However, complications, whether severe or not, have been reported.

Early Outcomes of Endoscopic Submucosal Dissection for Colorectal Neoplasms According to Clinical Indications.

Background: Although endoscopic submucosal dissection has been shown to be safe and effective for colorectal tumors, its clinical outcomes vary.

Objective: The aim of this study is to assess the outcomes of endoscopic submucosal dissection according to clinical indications.

Design: This is a prospective, multicenter, single-arm study.

Clinical impact of atypical endoscopic features in rectal neuroendocrine tumors.

Aim: To validate the association between atypical endoscopic features and lymph node metastasis (LNM).

Methods: A total of 247 patients with rectal neuroendocrine tumors (NETs) were analyzed. Endoscopic images were reviewed independently by two endoscopists, each of whom classified tumors by sized and endoscopic features, such as shape, color, and surface change (kappa coefficient 0.

Clinical Features of Tuberculous Versus Crohn's Anal Fistulas, in Korea.

Background And Aims: In Western countries, tuberculous anal fistula may not be an issue because tuberculosis [TB] is not common, and this is a very rare form of extrapulmonary manifestation of TB. However in TB-endemic countries, careful diagnostic differentiation is required because the clinical features of TB anal fistula and Crohn's disease [CD] anal fistula are similar, with distinguishing features remaining unclear. We aimed to analyse the clinical features of TB versus CD anal fistulas.

Influence of family history on survival in patients with colon and rectal cancer.

Objective: We aimed to investigate the association between a family history (FH) of colorectal cancer (CRC) and cancer recurrence and survival in patients with stage III CRC.

Methods: From April 2001 to December 2007, 1102 patients with stage III CRC were enrolled and their data including FH, clinicopathological characteristics of the tumor were retrospectively analyzed.

Results: Of 971 patients that were finally enrolled, 63 (6.

Influence of anemia on tumor response to preoperative chemoradiotherapy for locally advanced rectal cancer.

Purpose: In rectal cancer patients treated with preoperative chemoradiotherapy (CRT) and curative resection, we evaluated the influence of anemia on tumor response to preoperative CRT.

Methods: Between August 2001 and July 2007, 490 patients underwent preoperative CRT, followed by curative-intent surgery. Tumor responses were evaluated based on tumor regression grade (TRG), T- and N-level downstaging, and volume reduction rates.

D3 lymphadenectomy using a medial to lateral approach for curable right-sided colon cancer.

Background And Aims: The extended D3 lymphadenectomy using a medial to lateral (MtL) approach for the treatment of curable right-sided colon cancer is performed with a view to improving oncologic surgery outcomes. However, the feasibility and safety of this procedure has not been fully examined. The present study investigated the feasibility and safety of D3 lymphadenectomy using the MtL approach for curable right-sided colon cancers.