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Canadian Journal of Anesthesia, Vol 46, 114-121, Copyright © 1999 by Canadian Anesthesiologists' Society

ARTICLES

[Severe digestive complications after heart surgery using extracorporeal circulation]

A Aouifi, V Piriou, O Bastien, P Joseph, P Blanc, P Chiari, C Diab, J Villard and JJ Lehot
Service d'Anesthesie-Reanimation, Hopital Cardiovasculaire et Pneumologique Louis Pradel, Lyon, France. jjlehot@cismun.lyon1.fr

PURPOSE: To determine the incidence, circumstances of occurrence and evolution of gastrointestinal complications after cardiac surgery with extracorporeal circulation (ECC). METHODS: Retrospective chart study of gastrointestinal complications in 6.281 patients undergoing ECC between january 1994 and December 1997. RESULTS: Sixty patients developed 68 gastrointestinal complications (1%). Complications included: upper gastrointestinal bleeding (n = 23), intestinal ischemia (n = 19), cholecystitis (n = 7), pancreatitis (n = 6), and paralytic ileus (n = 16). The incidence of these complications was low after coronary artery (0.4%) or valvular surgery (0.8%) and high after cardiac transplantation (6%) and after surgery for acute aortic dissection (9%). Compared with a control population, patients with gastrointestinal complication had a higher Parsonnet score (29 +/- 15 vs 13 +/- 12 points; P = 0.002), were more frequently operated upon as an emergency (40/60, 66% vs 1120/6221, 18%; P = 0.01), underwent ECC of longer duration (114 +/- 66 vs 74 +/- 42 min; P = 0.01), and presented more frequently with low cardiac output after surgery (45/60, 75% vs 435/6221, 7%; P = 0.001). The mortality rate after gastrointestinal complications was 52%. The major factor associated with mortality was the occurrence of sepsis (OR = 38.7). Other factors were: renal failure (OR = 7.9), age > 75 yr (OR = 3.5), mechanical ventilation for more than seven days (OR = 2.7), associated cerebral damage (OR = 3.9). CONCLUSION: Gastrointestinal complications after ECC occur in high risk surgical patients. These complications are frequently associated with other complications leading to a high mortality rate.


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Copyright © 1999 by the Canadian Anesthesiologists' Society.