Please use this identifier to cite or link to this item: https://scholarhub.balamand.edu.lb/handle/uob/6030
Title: Effects of preoperative enoxaparin on bleeding after coronary artery bypass surgery
Authors: Abi Ghanem, Moussa
Saliba, Elie
Irani, Jihad
Darwish, Roula
Kawkabani, Nadine
Yared, Toni
Naim, Charbel
Abu Khalil, Bassam
Affiliations: Faculty of Medicine 
Keywords: Coronary artery bypass
Enoxaparin
Postoperative hemorrhage
Issue Date: 2015
Part of: Journal Medical Libanais
Volume: 63
Issue: 4
Start page: 185
End page: 190
Abstract: 
Background: Low molecular weight heparins are replacing unfractionated heparin in practice prior to cardiac surgery. This study examines postoperative (post-op) bleeding indicators in patients who received enoxaparin and underwent elective isolated first time coronary artery bypass graft.

Methods: A total of 125 consecutive patients who underwent this procedure between 2009 and 2011 at one tertiary center were reviewed and divided into three groups: Group A (n = 50) received the last dose of enoxaparin between 12 and 24 hours before surgery, Group B (n = 25) received the last dose before 24 hours and Group C (n = 50) did not receive enoxaparin. Perioperative bleeding indicators and transfusion rates were compared.

Results: Preoperative patients' characteristics were comparable between the three groups. There were no perioperative deaths, return to the operating room for any reason, nor major bleeding. Post-op bleeding indicators were similar in the three groups. The average chest tube drainage at 24 hours post-op was 880 mL, 695 mL and 830 mL in Group A, B and C respectively (p = 0.71). Transfusion rates of red blood cells were not statistically different (Group A 56%, B 64% & C 62%; p = 0.747). In multivariate analysis, female gender, older age, and preoperative clopidogrel intake (stopped 5 days prior to surgery) were associated with higher transfusion rates.

Conclusion: In elective first time coronary artery bypass graft patients who had no aspirin or clopidogrel intake 5 days prior to surgery, the use of enoxaparin up to 12 hours prior to skin incision does not increase the risk of post-op bleeding.
URI: https://scholarhub.balamand.edu.lb/handle/uob/6030
ISSN: 0023-9852
DOI: 10.12816/0017965
Type: Journal Article
Appears in Collections:Faculty of Medicine

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