Endoscopic submucosal dissection versus surgical resection for early gastric cancer: a retrospective multicenter study on immediate and long-term outcome over 5 years.

Background: Endoscopic submucosal dissection (ESD) is an alternative to surgical resection for treating early gastric cancer (EGC). However, there have been limited reports on the long-term outcome of ESD compared to that of surgical resection. The aim of this study was to evaluate the immediate and long-term clinical and oncologic outcomes of ESD compared to surgical resection.

[Role of Colonoscopy in Patients with Hematochezia].

Background/aims: Although colonoscopy is not indicated in patients with hematochezia, many surgeons, internists, and physicians are recommending colonoscopy for these patients in Korea. The aim of this study is to evaluate the diagnostic value of colonoscopy for patients with hematochezia.

Methods: We retrospectively reviewed the data of colonoscopy between January 2010 and December 2010.

Clinical usefulness of kidney biopsy in liver transplant recipients with renal impairment.

Background: Chronic kidney disease is a common complication after liver transplantation. In this study, we analyzed the results of kidney biopsy in liver transplantation recipients with renal impairment.

Methods: Between 1999 and 2012, 544 liver transplants were performed at our hospital.