Hitoshi Nishiyama

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BACKGROUND Heart failure is a highly prevalent disorder that continues to be associated with repeated hospitalizations, high morbidity, and high mortality. Sleep-related breathing disorders with repetitive episodes of asphyxia may adversely affect heart function. The main aims of this study were to determine the prevalence, consequences, and differences in(More)
BACKGROUND Endoscopic submucosal dissection (ESD) permits en bloc removal of superficial esophageal squamous cell carcinoma. However, postprocedure stricture is common after ESD for extensive tumors, and multiple endoscopic balloon dilation (EBD) is required for recalcitrant cases. OBJECTIVE To evaluate the effectiveness of oral prednisolone in(More)
BACKGROUND Endoscopic submucosal dissection (ESD) permits removal of esophageal epithelial neoplasms en bloc, but is associated with esophageal stenosis, particularly when ESD involves the entire circumference of the esophageal lumen. We examined the effectiveness of systemic steroid administration for control of postprocedural esophageal stricture after(More)
OBJECTIVES Endoscopic submucosal dissection (ESD) has advantages over conventional endoscopic mucosa resection. The number of elderly patients (more than 75 years old) with early gastric cancer (EGC) has been steadily increasing. We sought to assess clinical outcomes of ESD for EGC in elderly. METHODS ESD was performed for patients with EGC, who fulfilled(More)
BACKGROUND AND STUDY AIMS Endoscopic submucosal dissection (ESD) can remove early gastric cancer (EGC) en bloc. We sought to assess the feasibility and efficacy of ESD and the clinical outcomes based on the indication criteria. PATIENTS AND METHODS 551 patients with 589 EGC lesions were divided into the guideline criteria group (elevated lesion < or =20(More)
Nineteen cationic Tc-99m complexes, based upon four different ligand series, have been synthesized under "no carrier added" conditions and qualitatively evaluated as myocardial imaging agents in a dog model. Of these complexes, the four halogen derivatives of the diars series [diars = o-phenylenebis(dimethylarsine)] successfully concentrate in the(More)
Endoscopic submucosal dissection (ESD) enables the curative resection of early gastric cancer (EGC); however, little information is available on the long-term outcomes of ESD. This study was conducted to clarify the clinical outcomes of a large number of patients with EGC who underwent ESD. The early outcomes were assessed in 1,209 patients and the(More)
PURPOSE Endoscopic submucosal dissection permits removal of colorectal epithelial neoplasms en bloc, but long-term clinical outcomes remain unknown. METHODS Endoscopic submucosal dissection was performed in 282 patients having 296 colorectal tumors that fulfilled the inclusion criteria, which included lesions greater than 20 mm in size for which en bloc(More)
BACKGROUND Patients with chronic obstructive pulmonary disease are usually excluded from intravenous dipyridamole thallium-201 testing. We developed a nurse-administered protocol to screen and pretreat patients so they could be safely tested. METHODS AND RESULTS We prospectively screened patients referred for intravenous dipyridamole thallium testing and(More)