Khalid Akbari1, Claire Wood2, Nafees Ahmad3, Michael Yapanis3. 1. Department of General Surgery, Forth Valley Hospital, Stirlingshire, UK Department of General Surgery, Royal Berkshire Hospital, Reading, Berkshire, UK. 2. Forth Valley Hospital, Stirlingshire, UK. 3. Department of Vascular Surgery, Forth Valley Hospital, Stirlingshire, UK.