Kazushi Yukiiri

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We retrospectively evaluated the feasibility of measuring brain natriuretic peptide to identify cardiac syncope in 148 consecutive patients with syncope. Sixty-one patients with cardiac syncope were identified. A cut-off value of 40 pg/ml was used to determine the cardiac causes of syncope; the sensitivity and specificity for identification of cardiac(More)
Although left ventricular (LV) hypertrophy and diastolic function assessed by echocardiography and chronic kidney disease (CKD) have been established as predictors of cardiovascular events in hypertensive patients, the relationships between the echocardiographic parameters and renal function have not been fully examined. We examined which echocardiographic(More)
It has been reported that left ventricular (LV) diastolic functional parameters assessed by conventional Doppler echocardiography, which measures blood flow velocities in cardiac cavity, correlate with arterial stiffness assessed by the cardio-ankle vascular index (CAVI) and are markers for increased risk of cardiovascular events. Recently, tissue Doppler(More)
The clinical usefulness of the Tei index, which reflects left ventricular (LV) systolic and diastolic function, is known to have prognostic value in patients with overt heart disease such as ischemic heart disease or congestive heart failure. Additionally, LV diastolic functional parameters such as the transmitral E/A (early to atrial velocity) ratio have(More)
A case of an 81-year-old woman with a left ventricular diverticulum who underwent myocardial contrast echocardiography is reported. After administration of the contrast agent, a pulsed Doppler flow measurement clearly revealed the biphasic waveform of the ejection flow in the pre-systolic and systolic phase at the ostium of the diverticular cavity. A(More)
Recent automated applanation tonometry can measure radial pulse wave-derived central blood pressure (CBP), which has shown a prognostic value independently of peripheral blood pressure. However, CBP's clinical significance has not been fully established. We examined the associations between CBP and cardiac structure and function by comparing them with those(More)
BACKGROUND Cardioembolic stroke generally results in more severe disability, since it typically has a larger ischemic area than the other types of ischemic stroke. However, it is difficult to differentiate cardioembolic stroke from non-cardioembolic stroke (atherothrombotic stroke and lacunar stroke). In this study, we evaluated the levels of plasma brain(More)
Olprinone is a newly developed phosphodiesterase III inhibitor characterized by several properties. First, olprinone has positive inotropic and vasodilator actions and improves myocardial mechanical efficiency. Second, olprinone augments cerebral blood flow by a direct vasodilatory effect on cerebral arteries. The cerebrovascular reactivity to olprinone is(More)
Restenosis is a major problem in patients undergoing coronary angioplasty. Reduced uptake of iodine-123-labeled 15-(p-iodophenyl)-3-R,S-methylpentadecanoic acid (I-BMIPP-123) relatively to thallium-201 (Tl-201) has been attributed to the metabolic damage in the myocardium in patients with coronary artery disease. Therefore, we performed exercise stress(More)
Congenital malformation of the right atrium or the coronary sinus is rare, and cases are classified into 1 of the following 4 categories: (1) congenital enlargement of right atrium, (2) single diverticulum, (3) multiple diverticula of the right atrium, and (4) diverticulum of the coronary sinus. This report presents a 63-year-old man with cardiomegaly and(More)