<prompt> Acute vascular ischemia mainfests asPulselessnessSyncopeFlushingOedema  <response>: Peripheral aery occlusion Clinical features of peripheral aerial occlusion are classically remembered by 5 Ps : pain, pallor, pulselessness, paralysis and paraesthesia Some add 6th P: Poililothermia or perishing cold Most common presenting symptom of acute aerial occlusion : Pain Ref: Sabiston 20th edition Pgno :1756 