Echocardiographic and electrocardiographic data of control and heart failure guinea pigs.

<p>Values are mean±SEM. Control (CTL), sham-operated guinea pigs; EF, ejection fraction; FS, fractional shortening; LVEDd, left ventricle end-diastolic diameter; LVESd, left ventricle end-systolic diameter; HR, heart rate; QT, interval; QTc, corrected QT interval; n, number of guinea pigs. *p<0.05, **p<0.01 vs. CTL.