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Clinical Trial
. 2002 Mar;123(3):539-43.
doi: 10.1067/mtc.2002.117281.

Does tranexamic acid reduce desmopressin-induced hyperfibrinolysis?

Ertuğrul Ozal  1 , Erkan Kuralay, Hakan Bingöl, Faruk Cingöz, Süleyman Ceylan, Harun Tatar
Affiliations
Free article
Clinical Trial

Does tranexamic acid reduce desmopressin-induced hyperfibrinolysis?

Ertuğrul Ozal et al. J Thorac Cardiovasc Surg. 2002 Mar.
Free article

Abstract

Objective: Desmopressin releases tissue-type plasminogen activator, which augments cardiopulmonary bypass--associated hyperfibrinolysis, causing excessive bleeding. Combined use of desmopressin with prior administration of the antifibrinolytic drug tranexamic acid may decrease fibrinolytic activity and might improve postoperative hemostasis.

Methods: This prospective randomized study was carried out with 100 patients undergoing coronary artery bypass operations between April 1999 and November 2000 in Gülhane Military Medical Academy. Patients were divided into 2 groups. Desmopressin (0.3 microg/kg) was administrated just after cardiopulmonary bypass and after protamine infusion in group 1 (n = 50). Both desmopressin and tranexamic acid (before the skin incision at a loading dose of 10 mg/kg over 30 minutes and followed by 12 hours of 1 mg.kg(-1).h(-1)) were administrated in group 2 (n = 50).

Results: Significantly less drainage was noted in group 2 (1010 +/- 49.9 mL vs 623 +/- 41.3 mL, P =.0001). Packed red blood cells were transfused at 2.1 +/- 0.5 units per patient in group 1 versus 0.9 +/- 0.3 units in group 2 (P =.0001). Fresh frozen plasma was transfused at 1.84 +/- 0.17 units per patient in group 1 versus 0.76 +/- 0.14 units in group 2 (P =.0001). Only 24% of patients in group 2 required donor blood or blood products compared with 74% of those in the isolated desmopressin group (group 1, P =.00001). Group 1 and group 2 findings were as follows: postoperative fibrinogen, 113 +/- 56.3 mg/dL versus 167 +/- 45.8 mg/dL (P =.0001); fibrin split product, 21.2 +/- 2.3 ng/mL versus 13.5 +/- 3.4 ng/mL (P =.0001); and postoperative hemoglobin level, 7.6 plus minus 1.2 g/dL versus 9.1 plus minus 1.2 g/dL (P =.0001).

Conclusion: Tranexamic acid administration significantly reduces desmopressin and bypass-induced hyperfibrinolysis. Combined use of tranexamic acid and desmopressin decreases both postoperative blood loss and transfusion requirement.

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