Development and validation of a high-quality simulator with exchangeable peritoneum for transabdominal preperitoneal laparoscopic inguinal hernia repair.

Introduction: Practical simulation training with proper haptic feedback and the fragility of the human body is required to overcome the long learning curve associated with laparoscopic inguinal hernia repair (LIHR). However, few hernia models accurately reflect the texture and fragility of the human body. Therefore, in this study, we developed a novel model for transabdominal preperitoneal (TAPP) LIHR training and evaluated its validity.

Surgically treated gastric cancer in Japan: 2011 annual report of the national clinical database gastric cancer registry.

Background: The National Clinical Database (NCD) nationwide registry program of gastric cancer started in 2018. The purpose of this study was to report the treatment results of the NCD registry in the form of treatment results of the real world in Japan.

Methods: Patients' characteristics, tumor features, treatments, and outcomes were collected using a web-based data entry system.

What are the important prognostic factors in gastric cancer with positive duodenal margins? A multi-institutional analysis.

Purpose: Positive margins are reported in from 4.8 to 9.5% of all gastric cancer surgeries and they have a negative impact on the overall survival.

Optimal extent of lymph node dissection for remnant advanced gastric carcinoma after distal gastrectomy: a retrospective analysis of more than 3000 patients from the nationwide registry of the Japanese Gastric Cancer Association.

Background: No guidelines are available for defining the extent of lymph node (LN) dissection in patients with remnant gastric carcinoma (RGC). Hence, this retrospective study aimed to determine the optimal extent of LN dissection in patients with RGC.

Methods: We retrospectively evaluated the therapeutic outcomes of node dissection for RGC from a nationwide registry.

Determinant Factors on Differences in Survival for Gastric Cancer Between the United States and Japan Using Nationwide Databases.

Background: Although the incidence and mortality have decreased, gastric cancer (GC) is still a public health issue globally. An international study reported higher survival in Korea and Japan than other countries, including the United States. We examined the determinant factors of the high survival in Japan compared with the United States.

Preoperative skill evaluation in transabdominal preperitoneal (TAPP) inguinal hernia repair using a three-dimensional printed TAPP repair simulator.

Background: Although transabdominal preperitoneal laparoscopic inguinal hernia repair (TAPP LIHR) is becoming increasingly more critical in the management of hernias, it has a long learning curve. The learning curve is often measured by a shortened operative time without mention of the quality of the procedure. This study was performed to evaluate the efficacy of a three-dimensional printed TAPP LIHR simulator to evaluate the surgeon's preoperative skill before entering the operative theater.

Surgical outcomes of elderly patients with Stage I gastric cancer from the nationwide registry of the Japanese Gastric Cancer Association.

Background: The proportion of elderly patients undergoing surgery for gastric cancer is increasing. However, limited number of therapeutic outcomes in the elderly has been reported. Here we examined the surgical results based on a nationwide survey of elderly patients who underwent surgery for Stage I gastric cancer.

Comparison of olanexidine versus povidone-iodine for preventing surgical site infection in gastrointestinal surgery: study protocol for a multicentre, single-blind, randomised controlled clinical trial.

Introduction: The prevalence of surgical site infection (SSI) remains higher in gastrointestinal surgery than in other surgeries. Although several guidelines have indicated the efficacy of chlorhexidine and povidone-iodine in reducing the SSI rate, the optimal recommendation has still not been established. Therefore, it is necessary to determine the more effective antiseptic for surgical site preparation.

Validation of newly developed physical laparoscopy simulator in transabdominal preperitoneal (TAPP) inguinal hernia repair.

Background: A realistic simulator for transabdominal preperitoneal (TAPP) inguinal hernia repair would enhance surgeons' training experience before they enter the operating theater. The purpose of this study was to create a novel physical simulator for TAPP inguinal hernia repair and obtain surgeons' opinions regarding its efficacy.

Methods: Our novel TAPP inguinal hernia repair simulator consists of a physical laparoscopy simulator and a handmade organ replica model.

Five-year survival analysis of surgically resected gastric cancer cases in Japan: a retrospective analysis of more than 100,000 patients from the nationwide registry of the Japanese Gastric Cancer Association (2001-2007).

Background: The aim of this retrospective study was to investigate the tumor characteristics, surgical details, and survival distribution of surgically resected cases of gastric cancer from the nationwide registry of the Japanese Gastric Cancer Association.

Methods: Data from 118,367 patients with primary gastric carcinoma who underwent resection between 2001 and 2007 were included in the survival analyses. The 5-year survival rates were calculated for various subsets of prognostic factors.

Laparoscopic orchidopexy with transabdominal preperitoneal hernia repair in an adult.

We report an adult who underwent laparoscopic orchidopexy and transabdominal preperitoneal hernia repair. The patient was a 53-year-old man who was referred to our hospital for a bulge and pain in his left inguinal area. An abdominal CT scan revealed that the greater omentum was incarcerated in a left inguinal hernia.

Gastric cancer treated by endoscopic submucosal dissection or endoscopic mucosal resection in Japan from 2004 through 2006: JGCA nationwide registry conducted in 2013.

Background: The Japanese Gastric Cancer Association (JGCA) initiated a new nationwide gastric cancer registry in 2008 and reported the treatment outcomes of patients with primary gastric cancer who underwent surgical therapy in 2001 and 2003. However, the outcomes of endoscopic therapy have not been reported yet.

Methods: The JGCA conducted a retrospective nationwide registry in 2013 to investigate the short-term and long-term outcomes of endoscopic mucosal resection or endoscopic submucosal dissection in patients with gastric cancer treated from January 2004 through December 2006.

Gastric volvulus with a large bochdalek hernia in an adult successfully treated with emergency endoscopic reduction followed by elective laparoscopic mesh repair: A case study.

We report a case of gastric volvulus with a large Bochdalek hernia successfully treated with emergency endoscopic reduction followed by elective laparoscopic mesh repair. The patient was a 71-year-old woman with no history of trauma. She was referred to our hospital because of nausea and vomiting after eating.

Validation of a Japanese Version of the Decision Regret Scale.

Background And Purpose: In Japanese health care, no current index measures patient satisfaction with decision making during the treatment process. Our research aimed to test a Japanese version of the Decision Regret Scale (DRS) for this purpose.

Methods: We distributed a Japanese version of the DRS twice, 3 weeks apart, to 80 postoperative patients younger than the age of 85 years with inguinal hernias, cholelithiasis, cholecystitis, and gallbladder polyps.

A case of gastric adenocarcinoma of fundic gland type resected by combination of laparoscopic and endoscopic approaches to neoplasia with non-exposure technique (CLEAN-NET).

A male in his eighties attended our hospital for further evaluation of gastric cancer. A gastroscopy revealed a whitish flat elevated lesion (Paris, 0-IIa) of 15 mm in diameter on the greater curvature of the proximal fornix. The preoperative diagnosis was intra-mucosal differentiated gastric cancer, and a novel therapeutic approach, combination of laparoscopic and endoscopic approaches to neoplasia with non-exposure technique (CLEAN-NET) was applied and the lesion was resected in a single piece without any complications.

Gastric cancer treated in 2002 in Japan: 2009 annual report of the JGCA nationwide registry.

Background: The Japanese Gastric Cancer Association (JGCA) started a new nationwide gastric cancer registration in 2008.

Methods: From 208 participating hospitals, 53 items including surgical procedures, pathological diagnosis, and survival outcomes of 13,626 patients with primary gastric cancer treated in 2002 were collected retrospectively. Data were entered into the JGCA database according to the JGCA classification (13th edition) and UICC TNM classification (5th edition) using an electronic data collecting system.

Reevaluation of serum p53 antibody as a tumor marker in colorectal cancer patients.

Purpose: We reevaluated the serum p53 antibody (S-p53Ab) ELISA kit, which was approved as a tumor marker of colon cancer in the Japanese Health Insurance System in 2007.

Methods: S-p53Ab was measured as a tumor marker in 154 colorectal cancer patients, and the results were categorized by clinical and pathological variables. We then compared the positive frequency of S-p53Ab, carcinoembryonic antigen (CEA), and carbohydrate 19-9 (CA19-9).

Gastric cancer treatment in Japan: 2008 annual report of the JGCA nationwide registry.

The Japanese Gastric Cancer Association (JGCA) started a new nationwide gastric cancer registry in 2008. Approximately 50 data items, including surgical procedures, pathological diagnoses, and survival outcomes, for 12004 patients with primary gastric cancer treated in 2001 were collected retrospectively from 187 participating hospitals. Data were entered into the JGCA database according to the JGCA Classification of gastric carcinoma, 13th edition and the International Union Against Cancer (UICC) TNM Classification of malignant tumors, 5th edition by using an electronic data collecting system.

Prolapse of Intussusception through the Anus as a Result of Sigmoid Colon Cancer.

Adult intussusception is rare and most often associated with cancer. We report a case of intussuscepted sigmoid colon into the rectum protruding from the anus of a 47-year-old woman. The cause of the intussusception was sigmoid colon cancer.

Pretreatment plasma fibrinogen level correlates with tumor progression and metastasis in patients with squamous cell carcinoma of the esophagus.

Background: Hypercoagulation has been reported to be associated with tumor progression and a poor prognosis in various carcinomas. In this study, we examined fibrinogen levels in pretreated patients with esophageal squamous cell carcinoma (ESCC) and assessed its correlation with clinicopathological factors and prognosis in patients with ESCC.

Methods: Pretreatment fibrinogen levels were examined prior to surgery or other treatments (e.

Clinical significance of perioperative immunonutrition for patients with esophageal cancer.

Background: We hypothesized that preoperative and/or postoperative enteral immune-enhanced formulas that are supplemented with arginine, omega-3 fatty acids, and RNA may reduce postoperative complications in patients undergoing esophagectomy for thoracic esophageal squamous cell carcinoma (ESCC).

Methods: Forty patients who underwent esophagectomy were divided into three groups: group A (n = 20) received a control enteral diet (Erental) through the jejunostomy after surgery. group B (n = 6) received an enteral diet supplemented with immune-enhancing substrates (Impact) containing arginine, omega-3 fatty acids, and RNA after surgery.

Gastric cancer treated in 1991 in Japan: data analysis of nationwide registry.

The Japanese Gastric Cancer Association Registration Committee reported the treatment results and causes of death of patients with primary gastric cancer treated in 1991 at the leading hospitals in Japan. Data of 8851 patients with primary gastric cancer were collected from 113 hospitals, and data of 7935 patients with gastric resection were finally analyzed. The lost-to-follow-up rate was 6.