نتایج جستجو برای: esd
تعداد نتایج: 2519 فیلتر نتایج به سال:
Objectives. Endoscopic submucosal dissection (ESD) is a promising technique to treat early colorectal neoplasms by facilitating en bloc resection without size limitations. Although ESD for early gastrointestinal epithelial neoplasms has been popular in Japan, clinical experience with colorectal ESD has been rarely reported in Taiwan. Methods. From March 2006 to December 2011, 92 consecutive pat...
A substrate-triggered technique is proposed to improve ESD protection efficiency of the stacked-NMOS device in the mixed-voltage I/O circuit. The substrate-triggered technique can further lower the trigger voltage of the stacked-NMOS device to ensure effective ESD protection for the mixed-voltage I/O circuit. The proposed ESD protection circuit with the substrate-triggered technique for 2.5V/3....
New electrostatic discharge (ESD) clamp devices for using in power-rail ESD clamp circuits with the substratetriggered technique are proposed to improve ESD level in a limited silicon area. The parasitic n–p–n and p–n–p bipolar junction transistors (BJTs) in the CMOS devices are used to form the substrate-triggered devices for ESD protection. Four substrate-triggered devices are proposed and in...
Background and Aims. Endoscopic submucosal dissection (ESD) outcomes have traditionally been reported from high volume centers in East Asia. Data from low volume centers in other parts of Asia remain sparse. Methods. A retrospective survey with a structured questionnaire of 5 tertiary centers in 3 countries in South East Asia was conducted. Details of training and clinical outcomes of ESD cases...
BACKGROUND/AIMS The aim of this study was to compare the clinical effects of preoperative and postoperative dexamethasone on pain after endoscopic submucosal dissection (ESD) for early gastric neoplasm. METHODS Forty patients with early gastric neoplasm who were scheduled for ESD were randomized into two groups according to the timing of steroid administration: preoperative ("pre", n=20) and ...
Endoscopic submucosal dissection (ESD) utilizes electrical coagulation, which can cause burns, fibrosis and adhesion of the stomach and surrounding tissue; these complications might increase the surgical difficulties for subsequent laparoscopy-assisted gastrectomy (LAG) and the risk of complications. However, scarce data are available on the influence of previous ESD on LAG. The purpose of this...
Background and aim Strictures are a major complication of esophageal endoscopic submucosal dissection (ESD) for superficial esophageal carcinoma. Post ESD, stricture develops during the process of scar formation, which is related to inflammation caused by ESD. We planned a study to evaluate whether certain electrosurgical unit modes could attenuate strictures after esophageal ESD. Methods A...
BACKGROUND & AIMS Endoscopic submucosal dissection (ESD) is effective and safe for the removal of neoplastic lesions in the general population, but its role in patients with cirrhosis is not clear. We evaluated data on feasibility and safety of ESD for gastric lesions in cirrhotic patients. METHODS A systematic review of the literature with pooled-data analysis was performed. Data of all con...
BACKGROUND/AIMS Endoscopic submucosal dissection (ESD) was originally developed in 1995 using an insulation-tipped diathermic knife (Olympus, Tokyo, Japan) to achieve en-bloc resection of early gastric cancer (EGC). It has been suggested that advances in endoscopic devices and medical equipment, such as the high-frequency generator (1999) and hemostatic forceps (2000), and procedural improvemen...
BACKGROUND Gastric cancer with undifferentiated histology has different clinicopathologic characteristics compared to differentiated type gastric cancer. We aimed to compare the risk of synchronous or metachronous tumors after curative resection of early gastric cancer (EGC) via endoscopic submucosal dissection (ESD), according to the histologic differentiation of the primary lesion. METHODS ...
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