Subarachnoid Hemorrhage From Cavernous Malformation Masquerading as Myocardial Infarction.

Intracranial hemorrhage, including subarachnoid hemorrhage (SAH), is associated with many cardiac effects, including cardiac rhythm abnormalities, ischemic electrocardiographic (ECG) changes, elevated cardiac troponin levels, and regional wall motion abnormalities on echocardiogram. About 40% of patients with SAH demonstrate increased serum markers for myocardial necrosis. Approximately 10% of patients with SAH demonstrate left ventricular (LV) wall motion abnormalities; a subset of these patients will have irreversible myocardial damage, but most regain LV function in several weeks.