patients with complicated ventricular arrhythmias ( multiform , coupled , r on t vpcs or ventricular tachycardia ) , when compared to those with uncomplicated ventricular arrhythmias ( unifocal or no vpcs ) , had a greater number of proximally narrowed major coronary arteries ( p less than 0.001 ) , a higher coronary `` '' score '' '' ( p less than 0.001 ) , a greater incidence of previous myocardial infarction ( p less than 0.005 ) , a greater percentage of abnormal left ventricular segments 86 % vs 69 % ( p less than 0.001 ) and lower ejection fractions .
C0042514
ventricular
C0085612
ventricular arrhythmias