The effect of ultrafiltration with cardiopulmonary bypass on the removal of dabigatran from the circulation of adult pigs

Autor: Rupak Mukherjee, Alicia Sievert, John M. Toole, Walter E. Uber, Walter F. DeNino, Christopher B. Carter, Ashley Goss
Rok vydání: 2015
Předmět:
Zdroj: Perfusion. 31:424-430
ISSN: 1477-111X
0267-6591
DOI: 10.1177/0267659115614640
Popis: Objective: Dabigatran etexilate is a direct thrombin inhibitor approved for use in patients with non-valvular atrial fibrillation. There is no currently available pharmacological therapy to reverse this renally cleared anticoagulant. Dabigatran has a low level of plasma protein binding and has been considered dialyzable. We used a pig model with renal artery ligation to exclude intrinsic drug excretion to examine the efficacy of ultrafiltration (UF) during cardiopulmonary bypass (CPB) for dabigatran removal. Method: Dabigatran was intravenously infused (20 mg) in Yorkshire pigs (male, n=7, 70±1 kg) following renal artery ligation. CPB with UF was initiated after heparinization and continued until a total volume of 6 liters of UF effluent was removed. Serial labs, including dabigatran concentration, activated coagulation times (ACT), hematocrit and creatinine were drawn at intervals before the start of CPB and then incrementally during UF (0, 2, 4 and 6 L removed). Hemodialysis (HD) was performed on one animal following UF. Results: Dabigatran concentration (ng/mL) rose from undetectable levels at baseline to 296±70 (pConclusions: UF in conjunction with CPB was ineffective at removing dabigatran. Heparin demonstrated a dabigatran-lowering effect, suggesting a possible drug interaction or assay impairment. Based on these findings, emergent cardiac surgery with UF on cardiopulmonary bypass to remove dabigatran is not advisable. Alternative forms of drug removal or reversal must be identified.
Databáze: OpenAIRE