Yoshikazu Ohara

Effect of an Increase in Global Left Ventricular Afterload on Myocardial Deformation in Patients with Aortic Stenosis, Comparison with Hypertensive Patients

Yoshikazu Ohara, Yuki Yoshimura, Yohko Fukuoka, Atsuko Furukawa, Shingo Hosogi & Katsuhito Yamamoto · Cardiology and Angiology: An International Journal · 2017

Aims: Left ventricular hypertrophy (LVH) secondary to hypertension and aortic stenosis (AS) are often considered together to be pressure overload hypertrophy. We hypothesized that important differences could exist in the myocardial function with these 2 origins of pressure-overlo...

Open access Research Article 10.9734/CA/2017/35862

Early Detection of Abnormal Left Atrial and Left Ventricular Coupling, Using Two-dimensional Speckle Tracking Echocardiography in Patients with Preserved Left Ventricular Ejection Fraction

Yoshikazu Ohara, Yuki Yoshimura, Yohko Fukuoka, Atsuko Furukawa, Hosogi Shingo & Katsuhito Yamamoto · Cardiology and Angiology: An International Journal · 2016

Aims: The aim of this study was to detect the abnormalities of left atrial (LA)-left ventricular (LV) coupling using two-dimensional speckle tracking echocardiography in patient with preserved LV ejection fraction. Methods: A total of 177 asymptomatic patients with preserved LV e...

Open access Research Article 10.9734/CA/2016/29072