نتایج جستجو برای: ventricular tissue
تعداد نتایج: 1053699 فیلتر نتایج به سال:
background: diabetes mellitus is capable of impairing the myocardial function. several studies have documented the influential impact of diabetes mellitus on the left ventricular function. the right ventricular function plays a significant role in the overall myocardial contractility; hence, this study was undertaken to evaluate the effect of diabetes mellitus type ii on the right ventricular f...
Electrocardiograms and electrograms were recorded in 18 dogs anesthetized with sodium pentobarbital. Using endocardial and epicardial plunge wire electrodes in normal and ischemic or infarcted areas, activation of Purkinje and regular muscle tissue was studied within the first 20-30 minutes and 24 hours after anterior descending coronary artery ligation. The ventricular arrhythmias in the first...
Using a quantitative microscopic technique, we quantitated right and left ventricular interstitial tissue space vs. myocardial fiber space in 4 groups of autopsied hearts: 1) 5 normal hearts; 2) 5 hearts from infants _??_ 2 years old with tetralogy of Fallot; 3) 10 hearts from children 21/2-13 years old with tetralogy of Fallot, and 4) 5 hearts from adult patients _??_20 years old with tetralog...
BACKGROUND Several echocardiographic dyssynchrony indexes have been proposed to identify responders to cardiac resynchronization therapy using tissue velocity and strain. The present study aimed to compare tissue velocity-derived and strain-derived dyssynchrony indexes in patients with or without systolic dysfunction and left bundle-branch block. METHODS AND RESULTS Tissue Doppler imaging was...
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