Junken Koh

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Malignant tumors were detected in four patients who had been hospitalized for acute myocardial infarction and/or postinfarction angina. All of them underwent curative operations after successful percutaneous transluminal coronary angioplasty (PTCA). Operations performed were partial colectomy on the first patient, low anterior rectal resection on the second(More)
This study was performed to investigate the effect of fentanyl alone on heart rate variability (HRV) during mechanical ventilation using power spectral analysis. Arterial baroreceptor reflex was also tested with pharmacological manipulation to assess the contribution of vagal baroreceptor reflex modulation of HRV during fentanyl anesthesia. Ten patients(More)
In November 1989, transplantation of a liver graft from a living related donor was performed at Shimane Medical University Hospital. The donor was a 26-year-old man and the recipient his 1-year-old son. The child had been in end stage of liver cirrhosis. Before the surgery, he required intensive care because of massive bleeding from varices. Anesthesia of(More)
To determine whether spontaneous respiration is suitable for frequency domain analysis of heart rate (R-R interval) variability, we studied 15 volunteers (5 men and 10 women, aged 22–34 years) and evaluated the reproducibility of the power spectrum. Electrocardiograms were recorded for 5 min each with spontaneous and rate-controlled respiration (15(More)
Purpose. We investigated the effect of nitroglycerin(NTG) on fractal features of short-term heart rate variability (HRV) and blood pressure variability (BPV) using coarse-graining spectral analysis (CGSA). Method. Nine healthy young volunteers participated in this study. Five-minute recordings of electrocardiogram and blood pressure estimated by(More)
Purpose. This study was designed to investigate the effects of nicardipine and diltiazem on the fractal features of short-term heart rate variability (HRV), using coarse graining spectral analysis (CGSA). Methods. Eighteen healthy volunteers participated in this study; they were divided into two groups according to the drug administered. Five-minute(More)
We report a case of abdominal aortic aneurysm with giant bulla in a 58-year-old man who had an elective abdominal aortic reconstruction surgery. Preoperative chest x-ray showed a giant bulla in the right lung and small bullae in the left. General anesthesia was induced with midazolam 0.5 mg, fentanyl 0.2 mg and succinylcholine chloride 80 mg. After tracheal(More)
BACKGROUND Elevations of plasma inflammatory cytokines are related to the surgical intervention. We have examined the circulating interleukin 6, 8 (IL-6, IL-8) and CRP responses in patients older than 80 years during orthopedic hip arthroplasty. METHODS After taking the signed informed consent, 8 patients were enrolled in this study. All patients received(More)