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Eur J Cardiothorac Surg 2000;18:22-26
© 2000 Elsevier Science NL
Division of Cardiac Surgery, Department of Surgery, University of Leicester, Glenfield Hospital, Leicester LE3 9QP, UK
Received 14 January 2000; received in revised form 11 April 2000; accepted 18 April 2000.
Corresponding author. Tel.: +44-116-250-2450; fax: +44-116-232-1282
e-mail: mg50{at}le.ac.uk
Objectives: Early discharge has been proposed as a means of containing the escalating cost of health care in cardiac surgery. The aim of this study was to investigate whether shortening the length of hospital stay after coronary artery bypass surgery is safe and cost effective. Methods: Patients (n=198) undergoing elective bypass surgery by two surgeons for a period of 12 months were prospectively entered into the study but not randomized. The anaesthetic and surgical treatments were identical in all patients with the exception that one of the surgeons used intermittent cold crystalloid cardioplegia (‘normal discharge’ group; n=119) and the other used intermittent ischaemia without cardioplegia (‘early discharge’ group; n=79). Previous to the study both surgeons discharged patients on the 7th–8th postoperative day. For the present study, one of the two surgeons adopted the new policy of discharging patients on the 4th postoperative day (‘early discharge’ group). The criteria for hospital discharge included: presence of sinus rhythm, absence of pyrexia and wound infection, normal routine blood tests, satisfactory chest X-ray and ECG and full mobility. Results: The clinical characteristics were identical in the two groups. The number of grafts per patient was 2.8±0.8 and 3.2±1.0, and the total ischaemic time 47±13 and 46±14 min in the normal and early discharge groups, respectively (P=NS in each instance). In the normal discharge group the mean hospital stay was 7.7±3.3 days whereas in the early discharge group it was 4.7±2.0 days (P<0.0001) with 73.5% of the patients being discharged within the first 4 days following surgery. The shortening of hospital stay resulted in a mean reduction of costs of £750/patient. There was no operative mortality (<30 days following surgery) and the incidence of non-fatal perioperative complications were similar in the two groups, with the exception that the incidence of supraventricular arrhythmias was significantly higher in the normal discharge group than in the early discharge group (33% vs. 6.3% respectively; P<0.0001). These rhythm abnormalities occurred within the first 4 days in 89% of patients following surgery and were the cause of readmission in only one patient in the normal discharge group. There were a total of ten (8.4%) readmissions in the normal discharge group and three (3.8%) in the early discharge group. Conclusion: Shortening the postoperative hospital stay to 4 days following elective coronary bypass surgery appears to be safe and can be a means of reducing the cost of care. This in turn may result in a greater availability of resources and in an effective way of reducing waiting lists.
Key Words: Cardiac surgery • Hospital stay • Safety • Cost effectiveness
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