in a separate series of five dogs without ventricular tachycardia , systolic wall thickening measured with sonomicrometers after 5 min of controlled-release lidocaine administration ( 500- to 1000-mg matrix lidocaine content , 7.48 +/- 3.49-mg/kg dose ) was only minimally diminished ( -14.1 % ) and this effect was observed only at the site of matrix placement on the anterior-apical epicardium .
C0042514
ventricular tachycardia
C0023660
lidocaine