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Intensive Care Unit Readmission after Elective Coronary Artery Bypass Grafting

Department of Cardiothoracic Surgery, Castle Hill Hospital, Hull, United Kingdom

For reprint information contact: Joseph Alex, MRCS Tel: 44 150 736 3541 Fax: 44 150 736 3541 Email: mrjosephalex{at}yahoo.co.uk, The Cottage, Main Road, Covenham St. Bartholomew, Louth LN11 0PF, United Kingdom.

Prospective data of 3,120 consecutive patients who had elective coronary artery bypass were analyzed to identify patient profile, cost, outcome and predictors of those readmitted to the intensive care unit. Group A (n = 3,002) had a single intensive care unit admission and group B (n = 118) were readmitted within 30 days after surgery. Parsonnet score, EuroSCORE, age, body mass index, chronic obstructive airway disease, peripheral vascular disease, renal dysfunction, unstable angina, congestive cardiac failure, and poor left ventricular function were higher in group B. Bypass and crossclamp times were longer, and the prevalence of inotropic and balloon pump support, arrhythmias, myocardial infarction, re-exploration, blood loss and transfusion, cerebrovascular accident, wound infection, sternal dehiscence, and multisystem failure were higher in group B. Despite a 4-fold increase in cost of care, the mortality rate (32.4%) of patients readmitted to intensive care was 23-times higher than routine patients (1.4%). Crossclamp time > 80 min, Parsonnet score > 10, EuroSCORE > 9, sternal dehiscence, ventricular arrhythmias, and renal failure predicted readmission.