Prediction of the excessive perioperative bleeding in patients undergoing coronary artery bypass grafting: role of aspirin and platelet glycoprotein IIIa polymorphism
| Autor: | M. Szczeklik, Włodzimierz Morawski, Wojciech Szczeklik, Andrzej Bochenek, Marek Sanak, Rafał Ulczok, Marek Cisowski, Jerzy Dropiński, T. Waclawczyk |
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| Rok vydání: | 2004 |
| Předmět: |
Pulmonary and Respiratory Medicine
Male Blood Loss Surgical Postoperative Hemorrhage Coronary thrombosis Double-Blind Method Bleeding time Blood product Preoperative Care medicine Humans Platelet Coronary Artery Bypass Alleles Aspirin Polymorphism Genetic medicine.diagnostic_test business.industry PFA-100 Integrin beta3 Perioperative Middle Aged Anesthesia Hemostasis Surgery Female Cardiology and Cardiovascular Medicine business medicine.drug |
| Zdroj: | The Journal of thoracic and cardiovascular surgery. 130(3) |
| ISSN: | 0022-5223 |
| Popis: | Objective The presence of the glycoprotein IIIa allele Pl A2 is associated with enhanced thrombin formation and an impaired antithrombotic action of aspirin, which could favor coronary thrombosis. We wondered whether Pl A1/A2 genetic polymorphism could affect the postoperative bleeding in patients undergoing coronary artery bypass grafting. We also aimed to assess the effects of aspirin pretreatment and to ascertain the value of platelet function studies as predictors of postoperative bleeding. Methods In a randomized, double-blind study, patients undergoing coronary artery bypass grafting were pretreated with a 150-mg dose of aspirin orally 12 and 3 hours before surgery (n = 51, 41 elective) or with placebo (n = 51, 43 elective). The hemostasis was monitored by Simplate (bioMerieux, Inc, Durham, NC) bleeding time and capillary closure time (platelet function analyzer PFA 100; Sysmex UK Ltd, Milton Keynes, United Kingdom). Postoperative bleeding and blood products transfusions were recorded. The glycoprotein IIIa polymorphism was analyzed. Results Bleeding was significantly greater in Pl A1 homozygotes from control group. Blood loss was significantly greater (by 25%) in aspirin group. The volume of blood products transfusions in aspirin patients was significantly larger (by 137%). When subjects were stratified accordingly to blood platelet glycoprotein IIb/IIIa genotype, in the aspirin group Pl A2 carriers had greater blood loss than Pl A1 homozygotes (1858 ± 932 mL vs 1216 ± 525 mL, P Conclusion Pl A1 homozygotes normally had a greater risk of perioperative bleeding. Capillary closure time had no advantage relative to Simplate bleeding time in predicting postoperative blood loss. Aspirin pretreatment revealed no beneficial effects and resulted in increased postoperative bleeding and requirement for blood product transfusions after coronary artery bypass grafting in patients with stable angina. It was most unfavorable for Pl A2 carriers. |
| Databáze: | OpenAIRE |
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