Prinzmetal angina attacks with emphasis on ventricular arrythmias

摘要

We think that it's very important to stress the high prevalence of ventricular arrhythmias during vasospastic angina. Bayes de Luna et al. reported that ventricular arrhythmias were related to the duration of the episodes, the degree of the ST-segment elevation, the presence of ST-TQ alternance and increased R wave greater than 25%. Salerno et al2 also found a great prevalence of ventricular arrhythmias during vasospastic attacks, both in the occlusion and the reperfusion phases. They showed that degree and duration of ST elevation were correlated to ventricular arrhythmias in patients with vasospastic angina. They concluded that patients with very severe ischemia were at a much higher risk of sudden death. Thus, the duration and the degree of myocardial ischemia secondary to vasospasm seem to be the main determinants for the occurrence of life-threatening arrhythmias and sudden cardiac death.