Effect of early postoperative delirium on prognosis in patients undergoing coronary artery bypass graft:a nested case control study / 中华麻醉学杂志

ABSTRACT

Objective To evaluate the effect of early postoperative delirium on prognosis in the pa-tients undergoing coronary artery bypass graft in a nested case control study. Methods A total of 308 pa-tients scheduled for elective coronary artery bypass graft were divided into delirium group or non-delirium group according to whether early postoperative delirium occurred. Type of surgery (on-pump or off-pump) and difference of EuroSCORE between two cases ≤2 were considered as criteria, and patients in two groups were matched with a ratio of 1 1. The development of complications was observed within 28 days after op-eration. The development of complications developed after delirium was recorded in delirium group. Results The incidence of delirium was 46. 4％. The total incidence of complications, postoperative cardiac insuf-ficiency and incidence of arrhythmia were significantly higher in delirium group than in non-delirium group (P<0. 05). Conclusion Early postoperative delirium is not helpful for the prognosis in the patients under-going coronary artery bypass graft.