Posted by Anna Salzman on April 14, 2022 April 14, 2022 Uncategorized An abdominal aortic aneurysm is the enlarged part of the aorta. This affects the flow of blood to the body, increasing the heart rate or lowering blood pressure. It does cause an abnormal ECG, but it is mainly detected via imaging. A normal functioning heart can pump blood regularly and obtain a regular heart rate and blood pressure, but these are put at risk with AAA. Usually, AAA is caused by the hardening of the arteries, and is repaired in surgery.