J Collinson (Presenting Author) – Essex Cardiothoracic Centre, Mid- and South Essex NHS FT, Basildon; J Shipton – Essex Cardiothoracic Centre, Midand South Essex NHS FT, Basildon; S Toora – Essex Cardiothoracic Centre, Mid- and South Essex NHS FT, Basildon; J Sibley – Essex Cardiothoracic Centre, Mid- and South Essex NHS FT, Basildon; S Tan – Essex Cardiothoracic Centre, Mid- and South Essex NHS FT, Basildon; N Srinivasan – Essex Cardiothoracic Centre, Mid- and South Essex NHS FT, Basildon