PMID- 10800798 OWN - NLM STAT- MEDLINE DCOM- 20000519 LR - 20190628 IS - 0003-4975 (Print) IS - 0003-4975 (Linking) VI - 69 IP - 4 DP - 2000 Apr TI - Cytokine release and neutrophil activation are not prevented by heparin-coated circuits and aprotinin administration. PG - 1084-91 AB - BACKGROUND: Cardiopulmonary bypass (CPB) initiates a whole-body inflammatory response where complement and neutrophil activation and cytokine release play an important role. This prospective trial examined the effects of both heparin-coated circuits and aprotinin on the inflammatory processes during CPB, with respect to cytokine release and neutrophil activation. METHODS: Two hundred patients undergoing cardiac surgery were randomized in four groups of 50 patients each: heparin-coated circuit with aprotinin (HCO-A) or without aprotinin (HCO) administration, and uncoated circuit with aprotinin (C-A) or without aprotinin administration (C). In groups receiving aprotinin, a high-dose regimen was given. In all groups, high initial doses of heparin were used (3 mg/kg intravenously). Tumor necrosis factor-alpha (TNF-alpha), interleukin-6 (IL-6) and IL-8, and myeloperoxidase and elastase levels were measured in plasma samples taken before, during, and after CPB. RESULTS: In all groups, the TNF-alpha, IL-6, and IL-8 levels reached a maximum after protamine administration. After 24 hours, they remained significantly elevated (IL-6 and IL-8) or returned to baseline values (TNF-alpha). A similar pattern was observed with myeloperoxidase and elastase levels. No significant intergroup differences were observed. CONCLUSIONS: CPB is associated with cytokine release and neutrophil activation, which are not attenuated by the use of heparin-coated circuits or by the administration of aprotinin. Aprotinin and heparin-coated circuits do not show additive effects. FAU - Defraigne, J O AU - Defraigne JO AD - Department of Cardiovascular Surgery, University Hospital of Liege, Belgium. jo.defraigne@chu.ulg.ac.be FAU - Pincemail, J AU - Pincemail J FAU - Larbuisson, R AU - Larbuisson R FAU - Blaffart, F AU - Blaffart F FAU - Limet, R AU - Limet R LA - eng PT - Clinical Trial PT - Journal Article PT - Randomized Controlled Trial PL - Netherlands TA - Ann Thorac Surg JT - The Annals of thoracic surgery JID - 15030100R RN - 0 (Coated Materials, Biocompatible) RN - 0 (Cytokines) RN - 0 (Fibrinolytic Agents) RN - 0 (Hemostatics) RN - 0 (Interleukin-6) RN - 0 (Interleukin-8) RN - 0 (Tumor Necrosis Factor-alpha) RN - 9005-49-6 (Heparin) RN - 9087-70-1 (Aprotinin) SB - IM MH - Aprotinin/therapeutic use MH - *Cardiopulmonary Bypass MH - *Coated Materials, Biocompatible MH - Cytokines/*blood MH - Female MH - Fibrinolytic Agents/*therapeutic use MH - Hemostatics/therapeutic use MH - Heparin/*therapeutic use MH - Humans MH - Interleukin-6/blood MH - Interleukin-8/blood MH - Male MH - Middle Aged MH - *Neutrophil Activation MH - Tumor Necrosis Factor-alpha/analysis EDAT- 2000/05/09 09:00 MHDA- 2000/06/08 09:00 CRDT- 2000/05/09 09:00 PHST- 2000/05/09 09:00 [pubmed] PHST- 2000/06/08 09:00 [medline] PHST- 2000/05/09 09:00 [entrez] AID - S0003-4975(00)01093-6 [pii] AID - 10.1016/s0003-4975(00)01093-6 [doi] PST - ppublish SO - Ann Thorac Surg. 2000 Apr;69(4):1084-91. doi: 10.1016/s0003-4975(00)01093-6.