PMID- 36271639 OWN - NLM STAT- MEDLINE DCOM- 20230202 LR - 20230202 IS - 1525-1594 (Electronic) IS - 0160-564X (Linking) VI - 47 IP - 2 DP - 2023 Feb TI - Outcomes of systemic bivalirudin and sodium bicarbonate purge solution for Impella 5.5. PG - 361-369 LID - 10.1111/aor.14428 [doi] AB - BACKGROUND: Impella 5.5 (Abiomed; Danvers, MA) (IMP5) is a commonly used, surgically implanted, tMCS device that requires systemic anticoagulation and purge solution to avoid pump failure. To avoid heparin-induced thrombocytopenia (HIT) from unfractionated heparin (UFH) use, our program has explored the utility of bivalirudin (BIV) for systemic anticoagulation and sodium bicarbonate-dextrose purge solution (SBPS) in IMP5.5. METHODS: This single center, retrospective study included 34 patients supported on IMP5.5 with BIV based AC and SBPS between December 1st 2020 to December 1st 2021.The efficacy and safety end points were incidence of development of HIT, Tissue Plasminogen Activator (tPA) use for suspected pump thrombosis, stroke, and device failure as well as clinically significant bleeding. RESULTS: The median duration of IMP5.5 support was 9.8 days (IQR: 6-15). Most patients were bridged to HTX (58%) followed by recovery (27%) and LVAD implantation (15%). Patients were therapeutic on bivalirudin for 64% of their IMP5.5 support. One patient (2.9%) suffered from ischemic stroke and 26.5% (9) patients developed clinically significant bleeding. tPA was administered to 7(21%) patients. One patient in the entire cohort developed HIT. CONCLUSIONS: Our experience supports the use of systemic BIV and SBPS as a method to avoid heparin exposure in a patient population predisposed to the development of HIT. CI - (c) 2022 International Center for Artificial Organ and Transplantation (ICAOT) and Wiley Periodicals LLC. FAU - Bashline, Michael AU - Bashline M AD - Heart and Vascular Institute, University of Pittsburgh Medical Center, Pittsburgh, Pennsylvania, USA. FAU - DiBridge, Julie AU - DiBridge J AD - Department of Pharmacy, University of Pittsburgh Medical Center, Pittsburgh, Pennsylvania, USA. FAU - Klass, Wyatt J AU - Klass WJ AD - Heart and Vascular Institute, University of Pittsburgh Medical Center, Pittsburgh, Pennsylvania, USA. FAU - Morelli, Brian AU - Morelli B AD - Heart and Vascular Institute, University of Pittsburgh Medical Center, Pittsburgh, Pennsylvania, USA. FAU - Kaczorowski, David AU - Kaczorowski D AD - Department of Cardiothoracic Surgery, University of Pittsburgh, Pittsburgh, Pennsylvania, USA. FAU - Schmidhofer, Mark AU - Schmidhofer M AD - Heart and Vascular Institute, University of Pittsburgh Medical Center, Pittsburgh, Pennsylvania, USA. FAU - Horn, Edward T AU - Horn ET AD - Department of Pharmacy, University of Pittsburgh Medical Center, Pittsburgh, Pennsylvania, USA. FAU - Gomez, Hernando AU - Gomez H AD - Department of Critical Care Medicine, University of Pittsburgh, Pittsburgh, Pennsylvania, USA. FAU - Ramanan, Raj AU - Ramanan R AD - Department of Critical Care Medicine, University of Pittsburgh, Pittsburgh, Pennsylvania, USA. FAU - Hickey, Gavin W AU - Hickey GW AD - Heart and Vascular Institute, University of Pittsburgh Medical Center, Pittsburgh, Pennsylvania, USA. FAU - Rivosecchi, Ryan M AU - Rivosecchi RM AUID- ORCID: 0000-0002-0631-1358 AD - Department of Pharmacy, University of Pittsburgh Medical Center, Pittsburgh, Pennsylvania, USA. LA - eng PT - Journal Article DEP - 20221031 PL - United States TA - Artif Organs JT - Artificial organs JID - 7802778 RN - 9005-49-6 (Heparin) RN - 0 (Anticoagulants) RN - TN9BEX005G (bivalirudin) RN - EC 3.4.21.68 (Tissue Plasminogen Activator) RN - 8MDF5V39QO (Sodium Bicarbonate) RN - 0 (Hirudins) RN - 0 (Peptide Fragments) RN - 0 (Recombinant Proteins) SB - IM MH - Humans MH - *Heparin/adverse effects MH - Anticoagulants/adverse effects MH - Tissue Plasminogen Activator/adverse effects MH - Sodium Bicarbonate MH - Retrospective Studies MH - Hirudins/adverse effects MH - Peptide Fragments/adverse effects MH - Hemorrhage/chemically induced MH - *Thrombocytopenia MH - Recombinant Proteins/adverse effects MH - Treatment Outcome OTO - NOTNLM OT - VAD axial flow OT - antithrombotic therapy OT - cardiac assist and artificial heart OT - cardiac surgery OT - cardiothoracic surgery OT - purge solution EDAT- 2022/10/23 06:00 MHDA- 2023/02/03 06:00 CRDT- 2022/10/22 02:12 PHST- 2022/07/09 00:00 [revised] PHST- 2022/03/20 00:00 [received] PHST- 2022/10/13 00:00 [accepted] PHST- 2022/10/23 06:00 [pubmed] PHST- 2023/02/03 06:00 [medline] PHST- 2022/10/22 02:12 [entrez] AID - 10.1111/aor.14428 [doi] PST - ppublish SO - Artif Organs. 2023 Feb;47(2):361-369. doi: 10.1111/aor.14428. Epub 2022 Oct 31.