PMID- 34725832 OWN - NLM STAT- MEDLINE DCOM- 20220106 LR - 20220106 IS - 1525-1594 (Electronic) IS - 0160-564X (Linking) VI - 46 IP - 1 DP - 2022 Jan TI - Conventional versus restricted anti-Xa-guided heparin protocol in adult patients undergoing extracorporeal membrane oxygenation. PG - 128-137 LID - 10.1111/aor.14104 [doi] AB - OBJECTIVE: The optimal intensity of anticoagulation for adult patients supported with extracorporeal membrane oxygenation (ECMO) remains uncertain. The objective of this study was to evaluate the effectiveness and safety of two anticoagulation protocols using conventional (0.3-0.7 IU/ml) versus restricted (0.2-0.5 IU/ml) anti-factor Xa (anti-Xa) targets for the management of unfractionated heparin (UFH) in adult ECMO patients. METHODS: This retrospective before-after cohort study compared two groups of ECMO patients who received UFH for at least 24-h from March 2016 to May 2019. The primary outcome was the composite rate of major bleeding or thrombotic events per ECMO day. Secondary outcomes included the mean amount of blood products transfused per ECMO day, the proportion of patients who were within the target anti-Xa at 24-h, the time to achieve target anti-Xa, and the number of heparin infusion adjustments to reach target anti-Xa. RESULTS: Forty-one patients were included in this analysis (conventional, n = 25; restricted, n = 16). There was no difference in the composite rate of major bleeding or thrombotic events per ECMO day (p = .090). The restricted group had lower rates of packed red blood cells (pRBC) transfusion per ECMO day (mean 1 +/- 1 vs 3 +/- 2 units, p = .003) and required fewer heparin infusion adjustments to reach the target (p = .007). There was no difference between the groups in the number of patients who achieved target anti-Xa at 24-h (p = .940). CONCLUSION: In adult ECMO patients, anticoagulation with a restricted anti-Xa target was associated with lower pRBC transfusions and did not provoke an excess of thrombotic events. CI - (c) 2021 International Center for Artificial Organs and Transplantation and Wiley Periodicals LLC. FAU - Alkazemi, Afrah AU - Alkazemi A AUID- ORCID: 0000-0003-2456-8736 AD - Center for International Studies, MCPHS University, Boston, Massachusetts, USA. AD - Department of Pharmacy, Beth Israel Deaconess Medical Center, Boston, Massachusetts, USA. FAU - Eche, Ifeoma Mary AU - Eche IM AUID- ORCID: 0000-0002-6809-1813 AD - Department of Pharmacy, Beth Israel Deaconess Medical Center, Boston, Massachusetts, USA. FAU - Adra, May AU - Adra M AD - Department of Pharmacy, Beth Israel Deaconess Medical Center, Boston, Massachusetts, USA. FAU - Cabezas, Fausto AU - Cabezas F AD - Division of Cardiovascular Medicine, Beth Israel Deaconess Medical Center, Boston, Massachusetts, USA. FAU - Patel, Parth AU - Patel P AD - Department of Pharmacy, Beth Israel Deaconess Medical Center, Boston, Massachusetts, USA. FAU - Rick, Katelyn AU - Rick K AD - Division of Cardiovascular Medicine, Beth Israel Deaconess Medical Center, Boston, Massachusetts, USA. FAU - Grandin, E Wilson AU - Grandin EW AD - Division of Cardiovascular Medicine, Beth Israel Deaconess Medical Center, Boston, Massachusetts, USA. LA - eng PT - Comparative Study PT - Journal Article DEP - 20211111 PL - United States TA - Artif Organs JT - Artificial organs JID - 7802778 RN - 0 (Anticoagulants) RN - 9005-49-6 (Heparin) RN - EC 3.4.21.6 (Factor Xa) SB - IM MH - Adult MH - Anticoagulants/*administration & dosage MH - Cohort Studies MH - Erythrocyte Transfusion MH - Extracorporeal Membrane Oxygenation/*adverse effects MH - Factor Xa/analysis MH - Female MH - Hemorrhage/epidemiology MH - Heparin/*administration & dosage MH - Humans MH - Male MH - Middle Aged MH - Retrospective Studies MH - Thrombosis/epidemiology OTO - NOTNLM OT - anti-Xa OT - anticoagulation OT - bleeding OT - extracorporeal membrane oxygenation OT - thrombosis OT - unfractionated heparin EDAT- 2021/11/03 06:00 MHDA- 2022/01/07 06:00 CRDT- 2021/11/02 06:28 PHST- 2021/06/27 00:00 [revised] PHST- 2021/03/24 00:00 [received] PHST- 2021/10/20 00:00 [accepted] PHST- 2021/11/03 06:00 [pubmed] PHST- 2022/01/07 06:00 [medline] PHST- 2021/11/02 06:28 [entrez] AID - 10.1111/aor.14104 [doi] PST - ppublish SO - Artif Organs. 2022 Jan;46(1):128-137. doi: 10.1111/aor.14104. Epub 2021 Nov 11.