Most commonly seen in the setting of acute stroke (CVA), intracranial hemorrhage, subarachnoid hemorrhage, or after carotid endarterectomy, neurologic injury can result in the following ECG changes:
Diffuse deeply inverted T waves
Prolonged QT interval
These changes may mimic ischemia. There is debate regarding the risk of the prolonged QT interval leading to polymorphic ventricular tachycardia in this setting.
1. Surawicz B et al. ACC/AHA recommendations for the standardization and interpretation of the electrocardiogram. Circulation. 2009;119:e235-240.
2. Chou's Electrocardiography in Clinical Practice: Adult and Pediatric, 6e
By Steven Lome