several variables were significantly ( p less than 0.05 ) more common in the vt group : age older than 60 years , previous ami , history of angina pectoris , occurrence of vt or ventricular fibrillation in the coronary care unit , left ventricular ejection fraction less than 30 % , rales greater than bibasilar in the coronary care unit , and use of antiarrhythmic drugs , digitalis or diuretics at the time of discharge from hospital .
C0039231
vt
C0042514
vt