Editorial: Sudden cardiovascular events and comprehensive cardiac rehabilitation: Come back from “a bolt out of the blue”

Cardiovascular events, such as acute myocardial infarction (MI), aortic dissection, and life-threatening ventricular arrhythmia, often develop suddenly. Two-thirds of the patients with first ST segment elevation MI had no prodromal chest pain [1]. These sudden events that are like “a bolt out of the blue” for these patients may be associated with the risk of psychiatric comorbidity. Anxiety is common in patients with cardiovascular diseases. It was reported that the prevalence of anxiety is 70–80% even in patients with acute MI [2].