Subarachnoid Haemorrhage (SAH)

Twenty-five percent of people with SAH have ECG findings consistent with AMI or ischaemia [18]. T wave inversion is the most common abnormality found, followed by ST segment depression, ST segment elevation and Q waves. Changes are commonly in an anterior distribution or may be diffuse.

The image is an unenhanced axial CT scan showing SAH with haemorrhage.

Learning bite

Non-specific ST segment changes are associated with SAH in 25% of cases.

QT Prolongation and increased U wave amplitude are further signs