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Intraoperative Administration of 4-Factor Prothrombin Complex Concentrate Reduces Blood Requirements in Cardiac
Gina H Sun1, Visal Patel2, Ingrid Moreno-Duarte2
1Tufts University School of Medicine, Boston, MA.
Insights
Intraoperative four-factor prothrombin complex concentrate (4F-PCC) use in heart transplant patients with left ventricular assist devices (LVADs) reduced blood product needs and shortened chest closure time. This approach did not increase complications, offering a safer alternative for warfarin reversal.
Area of Science:
- Cardiology
- Transplantation Medicine
- Anesthesiology
Background:
- Patients with left ventricular assist devices (LVADs) often require anticoagulation with warfarin.
- Orthotopic heart transplantation (OHT) in these patients presents challenges in managing anticoagulation and potential bleeding.
- Intraoperative warfarin reversal strategies are crucial for optimizing surgical outcomes.
Purpose of the Study:
- To assess the efficacy of intraoperative four-factor prothrombin complex concentrate (4F-PCC) in patients undergoing OHT with pre-existing LVADs on warfarin.
- To evaluate the impact of 4F-PCC on blood product utilization, surgical time, and patient outcomes.
- To determine the safety profile of 4F-PCC in this specific patient population.
Main Methods:
- Retrospective analysis of 74 patients who underwent OHT at a single university hospital.
- Comparison between 32 patients who received 4F-PCC for warfarin reversal and 42 patients who did not.
- 4F-PCC was administered with one-third pre-cardiopulmonary bypass (CPB) and two-thirds post-CPB.
Main Results:
- The 4F-PCC group showed significantly reduced use of plasma, cryoprecipitate, and packed red blood cells.
- Time to chest closure was significantly shorter in the 4F-PCC group compared to the control group.
- No significant differences were observed in platelet transfusion requirements, ICU/hospital length of stay, acute kidney injury, mortality, or thromboembolic complications.
Conclusions:
- Intraoperative 4F-PCC effectively reverses warfarin anticoagulation in LVAD patients undergoing OHT.
- This strategy is associated with decreased blood product utilization and reduced surgical time.
- 4F-PCC administration is safe, with no increase in adverse events like renal injury, thrombosis, or mortality.
Objective:
Assessing the efficacy of intraoperative 4-factor prothrombin complex concentrate (4F-PCC) use in blood product utilization, time to chest closure, intensive care unit (ICU) and hospital length of stay (LOS), thromboembolic complications, renal injury and mortality in left ventricular assist device (LVAD) patients on home anticoagulation therapy with warfarin, undergoing orthotopic heart transplantation (OHT).
Design:
Retrospective analysis of OHT patients at Tufts Medical Center from May 2013 to October 2016.
Setting:
Single-institution, university hospital setting.
Participants:
Patients with preexisting LVADs who received orthotopic heart transplants (n = 74; 32 patients 4F-PCC, 42 patients no 4F-PCC).
Interventions:
Warfarin reversal using 4F-PCC in patients with LVADs undergoing orthotopic heart transplantation with the 4F-PCC dosing partitioned such that one-third was given pre-CPB and two-thirds were given post-CPB.
Measurements And Main Results:
The 4F-PCC group required less plasma (6 [IQR 4] v 1.31 [IQR 2] U, p < 0.001), cryoprecipitate (10 [IQR 10] v 7.50 [IQR 5] U, p < 0.001), and packed red blood cells (5 [IQR 4] v 2 [IQR 1.5] U, p < 0.001) and had a shorter time to chest closure (618.8 ± 111.4 v 547.9 ± 110.1 minutes, p = 0.008). There was no difference in platelet transfusion (2 [IQR 1] v 2 [IQR 1] U, p = 0.16), ICU or hospital LOS, acute kidney injury, or mortality. No thrombotic complications occurred.
Conclusions:
Replacing plasma with 4F-PCC to reverse preoperative warfarin anticoagulation during OHT was associated with a shorter time to chest closure and less blood product utilization, without an increase in acute kidney injury, thromboembolic complications, or death.
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