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Ann Card Anaesth. 2020 Jan-Mar;23(1):65-69. doi: 10.4103/aca.ACA_142_18.

Comparison of effectiveness of tranexamic acid and epsilon-amino-caproic-acid in decreasing postoperative bleeding in off-pump CABG surgeries: A prospective, randomized, double-blind study.

Author information

1
Department of Anaesthesia, Apollo Hospital, Jubilee Hills, Hyderabad, Telangana, India.

Abstract

Context:

Off-pump coronary artery bypass graft (CABG) surgeries have been shown to have increased fibrinolysis due to tissue plasminogen activator release. There are no trials comparing the two available antifibrinolytics (tranexemic acid and epsilon-amino-caproic acid) in off-pump CABG surgeries.

Aims:

The aim of the present study was to compare the effectiveness of tranexamic acid and epsilon-amino-caproic acid with respect to postoperative bleeding at 4 and 24 hours as the primary outcome, and rate of postoperative transfusion, re-operations, complication rate, serum fibrinogen, and D-dimer levels as secondary outcomes.

Settings and Design:

The study was carried out at a tertiary-level hospital between June 2017 and June 2018. It was a prospective, randomized, double-blind study.

Materials and Methods:

Eighty patients undergoing off-pump CABG, were randomly allocated to receive tranexamic acid or epsilon-amino-caproic acid. The patients were followed up in the postoperative period and were assessed for primary and secondary outcomes.

Statistical Analysis Used:

Statistical analysis was performed using SPSS software, version 19.0 (SPSS Inc., Chicago, IL). Nonparametric data were expressed as median with interquartile range and compared using Mann-Whitney U-test, parametric data was represented as mean with standard deviation and analyzed using Student's t-test. Nominal data were analyzed using Chi-square test.

Results:

Bleeding at 4 hours did not show significant difference between groups, 180 ml (80-250) vs 200 ml (100-310). Bleeding at 24 hours was significantly lesser in tranexamic acid group as compared to epsilon-amino-caproic acid group, 350 ml (130-520) vs 430 ml (160-730) (P = 0.0022) The rate of transfusion, re-operations, seizures, renal dysfunction, fibrinogen levels, and D-dimer levels did not show significant difference between the groups.

Conclusions:

Tranexamic acid significantly reduced postoperative bleeding in off-pump CABG at 24 hours as compared to epsilon-amino-caproic-acid.

KEYWORDS:

Epsilon-amino-caproic acid; off-pump CABG; tranexamic acid

PMID:
31929250
DOI:
10.4103/aca.ACA_142_18
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