<prompt> What is the indication for surgery in asymptomatic patients with the abdominal aoic aneurysm?Transverse diameter 3 cmTransverse diameter 5.5 cmTransverse diameter 7.5 cmNo need for surgery unless symptomatic  <response>: Most precise test for imaging aoic aneurysm: CT scan5-year risk of rupture for an aneurysm : 5cm - 1 to 2 and 5 cm-20 to 40For asymptomatic abdominal aoic aneurysms, an operation is indicated if the diameter is 5.5 cmIn elective surgery of AAA, the operative moality rate is 1 to 2 whereas after acute rupture the moality of emergency operation is 50MC complications after repair are Cardiac ischemia and infarction Respiratory atelectasis lower lobe consolidationMC non-cardiac complication after repair of AAA is the Renal failure. 