English Open aortic surgery Cited by user Bakerstmd on 15 Dec 2016 Open aortic surgery ("OAS", also known as Open aortic repair, "OAR") describes a technique whereby an abdominal or retroperitoneal surgical incision is used to visualize…
English Aortic aneurysm Cited by user JenOttawa on 14 Dec 2016 An aortic aneurysm is an enlargement (dilation) of the aorta to greater than 1.5 times normal size.