The most common site of rupture of Abdominal Aoic Aneurysm is:

Abdominal aoic aneurysm rupture frequently leads to the leakage of blood into the left retroperitoneal space. It is associated with sudden onset or increase in abdominal or back pain. It is maximal at the time of onset. Patients become hypotensive, tachycardic and diaphoretic and on examination show signs of peritoneal irritation. Treatment involves open repair of the vessel with replacement of the diseased segment with a Dacron graft. Ref: Irwin and Rippe's Intensive Care Medicine By Richard S. Irwin, James M. Rippe, 6th Edition, Pages 385-6