... affect risk perception: for example, wide-spread media coverage of airline crashes increases public anxiety about the risks of ANAESTHESIA FOR THE HIGH RISK PATIENT 240Chap-17.qxd 2/1/02 12 :10 ... Ridley S, Biggam M, Stone P. A cost-utility analysis of intensive therapy. Anaesthesia 1994; 49: 192–6. ANAESTHESIA FOR THE HIGH RISK PATIENT 236Chap-16.qxd 2/1/02 12 :10 PM Page 236cardiac output ... systemageing 103 104 , 108 clinical risk, general anaesthesia 33complications 29–39epidural anaesthesia 71gastrointestinal surgery 172–174 high dependency unit admission criteria231local anaesthesia...