B Li (Presenting Author) – The Essex Cardiothoracic Centre, Nethermayne, Basildon, Essex; L Zydzik – Jagiellonian University Medical College, Krakow; S Tan – The Essex Cardiothoracic Centre, Nethermayne, Basildon, Essex; P Cliffe – The Essex Cardiothoracic Centre, Nethermayne, Basildon, Essex; J Pintacasi – The Essex Cardiothoracic Centre, Nethermayne, Basildon, Essex; S Langley – The Essex Cardiothoracic Centre, Nethermayne, Basildon, Essex; A Hardy-Wallace – The Essex Cardiothoracic Centre, Nethermayne, Basildon, Essex; S Harris – The Essex Cardiothoracic Centre, Nethermayne, Basildon, Essex; P Phen – The Essex Cardiothoracic Centre, Nethermayne, Basildon, Essex; R M Barbagallo – The Essex Cardiothoracic Centre, Nethermayne, Basildon, Essex; J N Dungu – The Essex Cardiothoracic Centre, Nethermayne, Basildon, Essex; H O Savage – The Essex Cardiothoracic Centre, Nethermayne, Basildon, Essex