Cardiovascular Effects of Smoking in Patients with Ischemic Heart Disease

The cardiovascular effects of smoking, including the occurrence of ventricular arrhythmias, were examined in 52 patients with ischemic heart disease. The study was a randomized, crossover comparison between smoking six cigarettes and nonsmoking with observer-blinded primary outcome measurements. Continuous Holter ECG recording for four hours showed no significant differences in the proportion of patients experiencing ventricular ectopy or the …