Masaharu Tatsuta

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The effects of treatment with the Chinese herbal medicine Liu-Jun-Zi-Tang (TJ-43) on gastric emptying and gastrointestinal symptoms were investigated in 42 patients with chronic idiopathic dyspepsia. By random allocation, 22 patients received oral treatment with 2.5 g TJ-43 three times daily, and 20 patients received placebo. Gastric emptying was measured(More)
BACKGROUND AND STUDY AIMS The frequency of stricture after endoscopic submucosal dissection (ESD) for esophageal squamous cell carcinoma with a mucosal defect involving more than three-quarters of the circumference is 70% - 90%. Stricture decreases quality of life and requires multiple endoscopic balloon dilation (EBD) sessions. We investigated the efficacy(More)
OBJECTIVES With conventional methods of endoscopic mucosal resection for early gastric cancer (EGC), proton pump inhibitors (PPIs) and H2-receptor antagonists (H2RAs) have a similar effect on preventing bleeding from artificial ulcers. An objective of this study is to investigate whether a stronger acid suppressant (i.e., PPI) more effectively prevents(More)
BACKGROUND EMR and endoscopic submucosal dissection (ESD) are now being increasingly used for the treatment of esophageal cancers. However, their efficacies in smaller lesions have not been compared. OBJECTIVE For effective use of these methods, we compared the results of ESD and 2 major EMR methods for treating esophageal cancers of <or=20 mm. DESIGN A(More)
BACKGROUND AND STUDY AIMS With endoscopy, there is a high rate of interobserver variability in the identification of gastric intestinal metaplasia, and the endoscopic findings correlate poorly with the histological findings. Previous studies by our group investigating the use of a narrow-band imaging system with magnifying endoscopy (NBI-ME) in the gastric(More)
From January 1987 to December 1990, five cases of early depressed cancer of the large intestine were seen. Endoscopically, almost all of these tumors were located in the proximal colon and looked like a reddish depression (similar to the sucker of an octopus). Histologically, all of these cancers were well differentiated and tended to reach deeper layers at(More)
3-Hydroxy-3-methylglutaryl-coenzyme A (HMG-CoA) reductase inhibitors prevent the conversion of HMG-CoA to mevalonate and thereby inhibit the synthesis of other products derived from this metabolite. This includes a number of small prenylated GTPases involved in cell growth, motility, and invasion. We studied the effect of HMG-CoA reductase inhibitors(More)
BACKGROUND Case studies are presented of fluorescence endoscopy in the upper and lower GI tract to illustrate the ability to detect early-stage lesions that were not observable with white light endoscopy or those in which the assessment of the stage or extension of the lesion were equivocal. METHODS A new fluorescence imaging system was used in which blue(More)
BACKGROUND To overcome the poor prognosis of lung cancer with pleural dissemination, the authors developed postoperative intrathoracic chemo-thermotherapy (PICT). In this report, they present the long-term results for 31 consecutive patients who underwent resection, followed by PICT for lung cancer with pleural dissemination between April 1985 and December(More)
PURPOSE To assess factors predictive of recurrent disease and survival after achieving initial complete response (CR) to chemoradiotherapy (CRT) for esophageal cancer. METHODS AND MATERIALS Patients who had clinical Stage I-IVA esophageal cancer and received definitive CRT between 2001 and 2007 were retrospectively analyzed. RESULTS Of 269 patients with(More)