Death within 1 h of the onset of acute symptoms.
Sudden cardiac death (SCD) is an important public health problem, with an annual incidence estimated between 180,000 and 250,000 cases in the United States. The working definition of SCD is death within 1 h of the onset of symptoms, in the absence of preceding evidence of severe pump failure. In prior decades, the majority of SCD cases have been estimated to occur due to rapid cardiac arrhythmia, specifically ventricular tachycardia (VT) and ventricular fibrillation (VF). More recent data indicate that VT/VF is the presenting rhythm in SCD about 30–40% of the time. SCD may also occur due to life-threatening slow heart rhythms (bradycardia) or due to other causes such as massive pulmonary embolism or intracranial hemorrhage (Hinkle and Thaler 1982; Lloyd-Jones et al. 2010).
In prospective cohort studies, women have a lower incidence of sudden death than men. Coronary artery disease...
References and Further Reading
- Whang, W., Kubzansky, L. D., Kawachi, I., Rexrode, K. M., Kroenke, C. H., Glynn, R. J., et al. (2009). Depression and risk of sudden cardiac death and coronary heart disease in women: Results from the Nurses’ Health Study. Journal of the American College of Cardiology, 53(11), 950–958.CrossRefGoogle Scholar