- pertaining to the heart. 2. pertaining to the ostium cardiacum. cardiac arrest sudden and often unexpected stoppage of effective heart action.
The incidence of sudden cardiac arrest in athletes varies according to age, race and ethnic group, sex, sport, and social determinants of health. The common causes of sudden cardiac arrest include ...
Cardiac muscle tissue has autorhythmicity, the unique ability to initiate a cardiac action potential at a fixed rate—spreading the impulse rapidly from cell to cell to trigger the contraction of the entire heart.
Serious cardiac symptoms include chest pain or discomfort, dyspnea, weakness, fatigue, palpitations, light-headedness, sense of an impending faint, syncope , and edema. These symptoms are common in multiple cardiac diseases as well as in noncardiac diseases.