Asymptomatic patent processus vaginalis is a risk for developing external inguinal hernia in adults: A prospective cohort study.

Background: Inguinal hernia repair is common for children and adults across the world, but the mechanism behind hernia onset still requires elucidation. This prospective study aims to determine whether patent processus vaginalis (PPV) is a factor in the development of external inguinal hernias.

Method: We enrolled 1008 patients who underwent laparoscopic surgery and in whom the inguinal region was observed.

Optimal Assessment of Frailty Predicts Postoperative Complications in Older Patients with Colorectal Cancer Surgery.

Objectives: The increasingly elderly worldwide population has affected the incidence of colorectal cancer. Establishment of reliable assessment of frailty and proposals for multi-disciplinary interventions are urgently required in oncology practices. Kihon Checklist (KCL) was published by the Japanese Ministry of Health, Labor and Welfare originally to identify individuals ≥ 65 years old at probable risk for requiring care or social support.

Color and gloss evaluation of titanium dioxide coating for acrylic resin denture base.

Purpose: We examined the clinical appearance (color, gloss, and surface roughness) of TiO(2) coating on polymethyl methacrylate (PMMA) resin dentures.

Methods: A spraying method, using air brushes, was used to generate thin uniform TiO(2) coating. PMMA resin, primer-coated PMMA, and TiO(2)-coated PMMA (with primer) specimens were compared.

Perineal approach for a gastrointestinal stromal tumor on the anterior wall of the lower rectum.

Background: Wide margins of resection and regional lymphadenectomy for GIST are not necessary. Several procedures for rectal GIST have been designed according to the location and size of the tumor to preserve the anal function and decrease the morbidity rate.

Case Presentation: We report a 61-year-old-man with rectal bleeding.

Adenocarcinoma arising from heterotopic pancreas in the duodenum.

We present a rare case of adenocarcinoma arising from a heterotopic pancreas in the duodenum, and review the associated literature. A 62-year-old woman was admitted to our hospital, complaining of vomiting and epigastralgia. Imaging studies revealed advanced gastric cancer with a gastric outlet obstruction.

A rare case of xanthogranuloma of the stomach masquerading as an advanced stage tumor.

Background: Xanthogranuloma of the stomach is an extremely rare disease, and this lesion has only been found to coexist with early gastric cancer in 2 cases in the literature.

Case Presentation: We report a case of xanthogranuloma of the stomach combined with early gastric cancer that mimicked an advanced stage tumor. A 65-year-old female was referred to our hospital because of epigastralgia.

Color differences between artificial and natural teeth in removable partial denture wearers.

The purpose of this study was to investigate differences between natural tooth color and that selected for artificial teeth in partial dentures at our department with a view to establishing criteria for obtaining greater harmonization between colors. The participants in this study comprised partial denture wearers visiting the Department of Prosthodontics, Tokyo Dental College Chiba Hospital, in whom both artificial teeth and natural teeth were present in the maxillary anterior tooth area. Natural tooth color was measured according to VITA classical shade guide number using a dental color measurement apparatus.

Risk factors and management for massive bleeding of an acute hemorrhagic rectal ulcer.

An acute hemorrhagic rectal ulcer (AHRU) is considered to be a potentially life-threatening illness requiring urgent identification and management because of massive bleeding. It is therefore important to clarify the factors associated with the massive bleeding of an AHRU and the best management. The factors associated with the massive bleeding of 14 patients with AHRU were determined by comparing the clinicopathologic features, laboratory data, and treatment between four patients with more transfusions (> or = 12 U) and 10 patients with less transfusions (< or = 3 U).

Assessment of liver function for successful hepatectomy in patients with hepatocellular carcinoma with impaired hepatic function.

Background/purpose: This study aimed to construct a formula for assessing liver function in order to prevent post-hepatectomy liver failure.

Methods: A formula was constructed by analyzing data from 28 patients with hepatocellular carcinoma (HCC) with liver cirrhosis operated on between 1981 and 1984. Next, we evaluated the validity of this formula in 207 hepatectomy patients operated on from 1985 to 1999.

Laparoscopic resection for gastrointestinal stromal tumors of the stomach.

Background: We reviewed our experience with primary gastrointestinal tumors (GISTs) after surgical treatment.

Methods: Between 1998 and 2003, 56 patients who underwent surgical treatment for primary GIST of the stomach were enrolled in this study. Statistical analyses of the risk factors for recurrence were assessed.