Publications by authors named "Shuichiro Uetake"
Objectives: Peak velocities of early diastolic mitral annulus motion (Ea) assessed by tissue Doppler imaging are relatively preload independent. Whether Ea decreases after hemodialysis or not is unclear. This study investigated the effect of hemodialysis on Ea.
View Article and Find Full Text PDFA 51-year-old Japanese man was admitted to hospital for evaluation of anterior chest pain at rest. He had a past history of cerebellar infarction when he was 47 years old. A conventional 2-dimensional echocardiogram revealed normal left ventricular function, and no abnormal findings.
View Article and Find Full Text PDFArticle Synopsis
- The study assessed myocardial contractility in the left ventricle of patients with mild to moderate essential hypertension using pulsed tissue Doppler imaging, focusing on systolic velocities.
- Compared to a control group, hypertensive patients showed significantly lower peak systolic velocities (Sw), indicating impaired contractility.
- Results revealed negative correlations between Sw and various factors: systolic/diastolic blood pressure and measurements related to left ventricular hypertrophy, suggesting that higher blood pressure and heart muscle thickening are linked to reduced contractile function.
Objectives: Midwall fractional shortening (MFS) is a useful index to evaluate left ventricular myocardial function in patients with essential hypertension. The study investigated the prevalence and characterization of low MFS in hemodialysis patients.
Methods: MFS was calculated from M-mode echocardiograms in 67 patients (34 males, 33 females) receiving maintenance hemodialysis in whom fractional shortening was normal.