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Iranian Heart Journal، جلد ۱۶، شماره ۳، صفحات ۱۱-۱۵
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عنوان انگلیسی mpact of Low-Dose Heparin on Accurate Anticoagulation during Cardiopulmonary Bypass and Postoperative Blood Loss in Cardiac Surgery
چکیده انگلیسی مقاله Background:Activated clotting time (ACT) is most commonly measured for monitoring the anticoagulation effect of heparin during cardiopulmonary bypass (CPB).The aim of this study was to compare the standard heparin dose (300IU/kg) with lower doses to achieve ACTof 480 sec during CPB.Methods:In this prospective, randomized, double-blind clinical trial,120 patients (40/group) who underwent first-time elective coronary artery bypass grafting were randomized into 3groups A, B, and C receiving an initial heparin dose of 200, 250, and 300 IU/kg. Extra incremental heparin (50 IU/kg) was added if requiredto achieve a target ACT of 480 sec before initiating CPB. Postoperative blood loss was measured from the time of heparin reversal until the chest drains were removed 48h after operationin the intensive care unit. Results:The study groups were similar in demographic data. Target ACT was achieved in 32.5%, 50%, and 65% of the patients in groups A, B, and C-respectively-after the initial dose of heparin (P=0.051). The postoperative mean blood loss in the 2 groups of B and C (13.14±1.07 and 12.5±0.79mL/kg, respectively) was lower than that in group A (15.97±1.31mL/kg) (P=0.58). However, this difference between the 3 groups was not statically significant. The mean total dose of heparin in groups A and B was lower than that in group C (P=0.002).Conclusions:Thepatients receiving lower doses of heparin to achieve the target ACTdid not havelower postoperative blood loss. An initial heparin dose of 300 IU/kg was most often sufficientto reach the target ACT withthelowest incremental dose of heparin.(Iranian Heart Journal 2015; 16(3): 11-15)
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نویسندگان مقاله Mitra Golmohammadi |
Department of Cardiac Anesthesiology, Seyed Al-Shohada Hospital,Urmia University of Medical Sciences, Urmia,I.R.Iran.

Mohammad Saeidi |
Department of Anesthesiology,Seyed Al-Shohada Hospital. Urmia University of Medical Sciences, Urmia, I.R.Iran.

Hamid Reza Khalkhali |
Department of Biostatician Epidemiology and Biostatistics, Urmia University of Medical Sciences, Urmia, I.R.Iran

نشانی اینترنتی http://journal.iha.org.ir/article_83171_87d23ed994504083f050fc899b7cfe54.pdf
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