Takashi Kanesaka

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Background Endoscopic resection (ER) has recently become standard treatment, even for early gastric cancer (EGC) in the remnant stomach. We aimed to compare long-term survival after ER versus radical surgery for EGC in the remnant stomach. Methods We retrospectively compared overall and cause-specific survival of patients who had undergone ER or radical(More)
BACKGROUND Although steroid injection prevents stricture after esophageal endoscopic submucosal dissection (ESD), some patients require repeated sessions of endoscopic balloon dilation (EBD). We investigated the risk for refractory stricture despite the administration of steroid injections to prevent stricture in patients undergoing esophageal ESD.(More)
BACKGROUND The relationship between the thickness of subepithelial collagen bands (CB) and the development of linear ulcerations (LU) in collagenous colitis (CC) remains unclear. The aim of the present study was to compare the clinical and pathological features, including the thickness of CB, in CC patients with and without LU. PATIENTS AND METHODS(More)
BACKGROUND AND AIM The significance of gastric xanthelasma in relation to gastric disease still remains unclear. We investigated the prevalence and significance of gastric xanthelasma in patients with atrophic gastritis and gastric cancer. METHODS A total of 3238 patients who underwent endoscopic examinations of the upper gastrointestinal tract were(More)
BACKGROUND AND STUDY AIMS Colonic endoscopic submucosal dissection (ESD) is a challenging procedure because it is often difficult to maintain good visualization of the submucosal layer. To facilitate colonic ESD, we designed a novel traction method, namely traction-assisted colonic ESD using clip and line (TAC), and investigated its feasibility. PATIENTS(More)
Rectal endoscopic submucosal dissection (ESD) is a highly effective procedure that achieves high en bloc resection regardless of lesion size or location. However, rectal ESD has a higher risk of intraoperative and postoperative bleeding and still difficult for beginners. Therefore, we designed a novel traction technique “traction-assisted rectal ESD using a(More)
We elucidated risk factors contributing to recurrent hemorrhage after initial improvement of colonic diverticular bleeding. 172 consecutive hospitalized patients diagnosed with colonic diverticular bleeding were analyzed. Recurrent hemorrhage after initial improvement of colonic diverticular bleeding is main outcome measure. We analyzed factors contributing(More)
Background and study aims Cold snare polypectomy (CSP) is considered to be safe for the removal of subcentimeter colorectal polyps. This study aimed to determine the rate of incomplete CSP resection for subcentimeter neoplastic polyps at our center. Patients and methods Patients with small or diminutive adenomas (diameter 1 - 9 mm) were recruited to undergo(More)
BACKGROUND Magnifying endoscopy with narrow-band imaging (ME-NBI) can visualize crypt openings (CO) as slit-like structures in gastric epithelial neoplasia. Visualization of numerous CO is characteristic of low-grade adenoma (LGA). The aim of the present study was to investigate whether visualization of CO by ME-NBI is useful for discriminating between LGA(More)
BACKGROUND AND AIMS Endoscopic submucosal dissection (ESD) is a promising treatment for large gastrointestinal superficial neoplasms, although it is technically difficult, and perforation and delayed bleeding are well-known adverse events. However, there have been no large studies about electrocoagulation syndrome after colorectal ESD. The aim of this study(More)