Takahiro Iwami

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Both cardio-ankle vascular index (CAVI) and brachial-ankle pulse wave velocity (baPWV) are noninvasive methods to estimate arterial stiffness. The purpose of this study is to determine whether CAVI or baPWV is superior as an index of arterial stiffness. One hundred and thirty patients with chest pain syndrome who underwent coronary angiography (CAG) were(More)
BACKGROUND Beta is an index of arterial stiffness independent of blood pressure. Beta of the thoracic descending aorta (TDA) has been obtained by transesophageal echocardiography (TEE) and the cardio-ankle vascular index (CAVI) is a new noninvasive estimation of beta. METHODS AND RESULTS The purpose of this study was to evaluate the accuracy and(More)
A novel Gram-positive bacterium, designated Kis4-28(T), was isolated from the intestinal tract of a fish, and its taxonomic position was investigated by a polyphasic approach. The sample was collected from the coast of Tokyo Bay, Japan. Cells of strain Kis4-28(T) were rod-shaped, non-motile and non-sporulating. The peptidoglycan type of the isolate was(More)
BACKGROUND Spironolactone was shown to reduce mortality in patients with heart failure (HF). However, the effect of spironolactone on the incidence of atrial fibrillation remains unknown. Therefore, we examined the effects of spironolactone on atrial conduction and remodeling in patients with HF. METHODS AND RESULTS A total of 21 patients with HF were(More)
OBJECTIVES We evaluated the coronary vasodilatory effects of transcutaneous low-frequency (27-kHz) ultrasound (USD). BACKGROUND Ultrasound has been shown to affect vascular function. METHODS Ultrasound energy was administered transcutaneously to 12 dogs. Coronary arterial dimensions were assessed using intravascular coronary ultrasound (IVUS) and(More)
Two Gram-positive bacteria, designated strains Aji5-31(T) and Ngc37-23(T), were isolated from the intestinal tracts of fishes. 16S rRNA gene sequence analysis indicated that both strains were related to the members of the family Dermatophilaceae, with 95.6-96.9% 16S rRNA gene sequence similarities. The family Dermatophilaceae contains 2 genera and 3(More)
OBJECTIVES We sought to assess the extent and nature of radial artery injury after transradial intervention (TRI) using intravascular ultrasound (IVUS). BACKGROUND Although TRI has been developed to minimize bleeding and improve the quality of life, radial artery injury is a problem. METHODS We studied 100 radial arteries in 100 consecutive patients who(More)
OBJECTIVES We assessed an air-blood-saline mixture for Doppler measurement of pulmonary artery systolic pressure (PASP) and the mechanism of enhancement of the Doppler signal by this mixture. BACKGROUND Underestimation of PASP by Doppler echocardiography occurs with inadequate continuous wave (CW) signals of tricuspid regurgitation (TR). METHODS We(More)
The purpose of this study was to determine whether candesartan and its combination with probucol reduce restenosis after coronary stenting. A total of 132 patients who successfully underwent stenting were randomly assigned to a control group (n=45), a candesartan group (8 mg daily, n=43), or a candesartan plus probucol group (+ probucol 500 mg daily, n=44).(More)
BACKGROUND Ultrasound has the potential to augment chemical thrombolysis. METHODS AND RESULTS Thrombotic occlusions in the left circumflex artery (LCx) were induced in 27 dogs. Sixty minutes later, tissue-type plasminogen activator (t-PA) was given intravenously over 90 min. Thrombotic occlusions (n = 20) were treated with concomitant transcutaneous low(More)