Ryo Imai

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BACKGROUND Survival after invasive coronary revascularization is worse in patients with chronic kidney disease than in patients without chronic kidney disease. We examined whether oral administration of nicorandil, a hybrid nitrate and adenosine triphosphate-sensitive potassium channel opener, could improve outcome after coronary revascularization in(More)
BACKGROUND We prospectively investigated whether cardiac autonomic imbalance is associated with sudden cardiac death (SCD) among a group of hemodialysis patients with left ventricular hypertrophy (LVH). METHODS In a prospective cohort study, we enrolled 196 asymptomatic patients on chronic hemodialysis who had LVH as determined by echocardiography and had(More)
BACKGROUND AND AIMS To compare the prognosis of chronic hemodialysis patients with or without parathyroidectomy. METHODS Among 158 chronic hemodialysis patients who underwent total parathyroidectomy between July 1998 and April 2009, 88 patients were matched with 88 controls for sex, age, underlying disease and prior dialysis history. Then a retrospective(More)
We investigated whether insulin resistance is associated with impaired cardiac fatty acid metabolism in maintenance hemodialysis patients without coronary artery disease. We studied 55 nondiabetic (63+/-11 years old) and 51 diabetic (61+/-10 years old) hemodialysis patients with normal coronary arteries, using single-photon emission computed tomography(More)
We prospectively evaluated if impaired myocardial fatty acid metabolism is involved in cardiac death after revascularization by percutaneous coronary artery intervention in dialysis patients. A cohort of hemodialysis patients was assessed by dual single-photon emission computed tomography using the radioiodinated fatty acid analogue BMIPP and radiolabeled(More)
OBJECTIVES To identify whether differences exist in the outcomes between patients undergoing hemodialysis and elderly nonhemodialysis patients with a femoral neck fracture. DESIGN Retrospective review. SETTING Level 1 trauma center. PATIENTS/INTERVENTIONS A total of 71 femoral neck fractures in 62 patients undergoing hemodialysis treated(More)
OBJECTIVE To solve the problem of diagnosing apocrine carcinoma (APCA) through distinguishing it from benign apocrine metaplasia with atypia (APMA). STUDY DESIGN The study group consisted of five histologically confirmed cases of uncommon infiltrating apocrine carcinoma and a case of noninfiltrating apocrine carcinoma of the breast by aspiration biopsy(More)
BACKGROUND The purpose of our study was to investigate tarsal tunnel syndrome (TTS) arising in patients who have undergone maintenance dialysis at our facility and to evaluate the frequency, pathological characteristics, and diagnosis of TTS. METHODS We evaluated 1011 patients (mean age 65.1 years) undergoing maintenance dialysis from 2000 to 2006 at our(More)
BACKGROUND Single-photon emission computed tomography (SPECT) using a fatty acid analogue, iodine-123-beta-methyl iodophenyl-pentadecanoic acid (123I-BMIPP), as a tracer may be effective for detecting coronary artery disease in end-stage renal disease (ESRD) patients. In this study, we investigated whether the presence of diabetes mellitus may affect the(More)
BACKGROUND/AIMS De novo coronary atherosclerosis may be involved in the poor prognosis after percutaneous coronary artery intervention (PCI) in hemodialysis patients. We aimed to clarify the factors associated with de novocoronary lesion in this population. METHODS We enrolled 106 patients on hemodialysis (72 men, 34 women; mean age, 65.4 +/- 8.9 years),(More)