Under such stress conditions, BPS exposure triggered frequent premature ventricular beats
, one of the most common forms of ventricular arrhythmias; in parallel comparisons, the effects of [10.sup.-9] M BPS on incidence of ectopic ventricular beats were indistinguishable from those of [10.sup.-9] M BPA.
Present PMK and ICDs have some protection algorithms to prevent PMT that usually extend PVARP after premature ventricular beats
or after a sequence stimulated ventricle--sensed atrium at high rate with fixed VA interval.
The cardiac rhythm disturbances were graded in: onset of arrhythmia (OA), premature ventricular beats
(PVB), ventricular tachyarrhythmias (VT; denoted by ventricular tachycardia or ventricular fibrillation).
Caption: Figure 1: Electrocardiogram shows normal sinus rhythm, ST elevation in AVr, ST depression, and T waves inversion in inferior and apicolateral leads with premature ventricular beats