Motohito Nakagawa

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The use of mesh in the surgical repair of adult indirect inguinal hernias is widely recommended in Western countries, but no randomized controlled trials have so far been reported in Japan. The purpose of the present randomized prospective trial was to compare a mesh method with non-mesh method for surgical repair of primary adult indirect inguinal hernias(More)
A successful resection of left ventricular tumor in an 82-year-old woman who had undergone coronary artery bypass grafting ten years ago is presented. In an attempt to make a procedure less invasive, we chose a trans-mitral endoscopic resection with minimum dissection because of reoperation on patient of advanced age. With the use of cardiopulmonary bypass(More)
Two cases involving patients who underwent a successful endoscopic resection of a left ventricular tumor are presented herein. One was an 82-year-old woman with a left ventricular papillary fibroelastoma, who underwent previous coronary artery bypass grafting. In an attempt to make the procedure less invasive, we used an endoscope. With a full sternotomy,(More)
CD117 (c-kit proto-oncogene protein product) is expressed in most gastrointestinal stromal tumors (GISTs) and plays a crucial role in the pathogenesis and treatment of this disease. However, the clinicopathological and immunohistochemical features of CD117-positive mesenchymal tumors without connection to the gastrointestinal tract, known as(More)
This paper describes a step gain optimization method of an adaptive noise canceller (ANC) using Normalized Least Mean Squares (NLMS) algorithm. This is useful for a speech recognition system (SRS). In this proposed method, a stepgain is made optimized by means of a fuzzy inference system (FIS). Results of experiments using data in a running car (50[kmIh])(More)
Gastrointestinal stromal tumors (GISTs) rarely occur in the esophagus. Surgical approaches for such tumors have not been established, since the standard wedge or segmental resection that is used for intra-abdominal GIST is not possible in the esophagus. We report two cases of small esophageal GIST in which thoracoscopic enucleation was performed. Both(More)
Primary neoplasms of the greater omentum are rare. We report a case of omental tumors occurring in 58-year-old Japanese man. Ultrasonography showed multiple solid tumors in the abdomen and angiography identified the greater omentum as the precise location. The tumors were completely resected with the major part of the greater omentum and analyzed(More)
Although dopamine is one of the most widely used vasoactive agents, its postoperative thermogenic and metabolic effects have not been studied. In this study, the effects of low-dose dopamine, given at 5 μ/kg/min, on resting energy expenditure (REE), metabolism, and plasma catecholamine levels were examined in eight postsurgical patients. Dopamine infusion(More)
A gastric tube-to-pleural fistula is an uncommon late complication of esophagectomy. In this report, a 71-year-old man who developed gastric tube-to-pleural fistula 17 months after esophagectomy with intrathoracic reconstruction using a gastric tube is presented. Chest radiograph on admission showed massive right pleural effusion, which demonstrated empyema(More)