PMID- 37042579 OWN - NLM STAT- MEDLINE DCOM- 20231010 LR - 20231024 IS - 1098-1101 (Electronic) IS - 0733-2459 (Print) IS - 0733-2459 (Linking) VI - 38 IP - 5 DP - 2023 Oct TI - Modifications to therapeutic plasma exchange to achieve rapid exchange on cardiopulmonary bypass prior to pediatric cardiac transplant. PG - 514-521 LID - 10.1002/jca.22053 [doi] AB - BACKGROUND: Cardiac transplants increasingly occur following placement of ventricular assist devices (VADs). A strong association exists between human leukocyte antigen (HLA) sensitization and VAD placement; however, desensitization protocols that utilize therapeutic plasma exchange (TPE) are fraught with technical challenges and are at increased risk of adverse events. In response to increased VAD utilization in our pre-transplant population, we developed a new institutional standard for TPE in the operating room. METHODS: Through a multidisciplinary effort, we developed an institutional protocol for intraoperative TPE immediately prior to cardiac transplantation after cannulation onto cardiopulmonary bypass (CPB). All procedures used the standard TPE protocol on the Terumo Optia (Terumo BCT, Lakewood, CO, USA), but incorporated multiple modifications to limit patients' bypass times, and to coordinate with the surgical teams. These modifications included deliberate misidentification of replacement fluid and maximization of the citrate infusion rate. RESULTS: These adjustments allowed the machine to run at maximal inlet speeds, minimizing duration of TPE. To date, 11 patients have been treated with this protocol. All survived their cardiac transplantation operation. Hypocalcemia and hypotension were noted; however, none of these adverse events appeared to have clinical impact. Technical complications included unexpected fibrin deposition in the TPE circuit and air in the inlet line due to surgical manipulation of the CPB cannula. No thromboembolic complications occurred in any patient. CONCLUSION: We feel that this procedure can be rapidly and safely performed in HLA sensitized pediatric patients on CPB to limit the risk of antibody mediated rejection of their heart transplant. CI - (c) 2023 Wiley Periodicals LLC. FAU - Davies, Emily AU - Davies E AUID- ORCID: 0000-0001-5265-7520 AD - Division of Pediatric Critical Care Medicine, Children's National Hospital, Washington, District of Columbia, USA. FAU - Khan, Sairah AU - Khan S AUID- ORCID: 0000-0003-4769-0654 AD - Division of Cardiology and Cardiac Transplant, Children's National Hospital, Children's National Heart Institute, Washington, District of Columbia, USA. FAU - Mo, Yunchuan D AU - Mo YD AD - Division of Laboratory and Transfusion Medicine, Children's National Hospital, Washington, District of Columbia, USA. AD - Center for Cancer and Blood Disorders, Division of Hematology, Children's National Hospital, Washington, District of Columbia, USA. FAU - Jacquot, Cyril AU - Jacquot C AUID- ORCID: 0000-0003-1281-0644 AD - Division of Laboratory and Transfusion Medicine, Children's National Hospital, Washington, District of Columbia, USA. AD - Center for Cancer and Blood Disorders, Division of Hematology, Children's National Hospital, Washington, District of Columbia, USA. FAU - Dham, Niti AU - Dham N AUID- ORCID: 0000-0002-5467-0208 AD - Division of Cardiology and Cardiac Transplant, Children's National Hospital, Children's National Heart Institute, Washington, District of Columbia, USA. FAU - Sinha, Pranava AU - Sinha P AUID- ORCID: 0000-0002-5917-4668 AD - Division of Pediatric Cardiac Surgery, Department of Surgery, University of Minnesota Medical School, Minneapolis, Minnesota, USA. FAU - Webb, Jennifer AU - Webb J AUID- ORCID: 0000-0003-1463-4963 AD - Division of Laboratory and Transfusion Medicine, Children's National Hospital, Washington, District of Columbia, USA. AD - Center for Cancer and Blood Disorders, Division of Hematology, Children's National Hospital, Washington, District of Columbia, USA. LA - eng GR - T32 HL110841/HL/NHLBI NIH HHS/United States PT - Journal Article DEP - 20230412 PL - United States TA - J Clin Apher JT - Journal of clinical apheresis JID - 8216305 SB - IM MH - Humans MH - Child MH - *Plasma Exchange/methods MH - Cardiopulmonary Bypass MH - Retrospective Studies MH - Plasmapheresis MH - *Heart Transplantation PMC - PMC10567986 MID - NIHMS1889305 OTO - NOTNLM OT - allosensitization OT - antibody mediated rejection OT - cardiopulmonary bypass OT - donor specific crossmatch OT - heart transplant OT - therapeutic plasma exchange OT - ventricular assist device COIS- Conflict of Interest: None of the authors have a conflict of interest to disclose. EDAT- 2023/04/13 06:00 MHDA- 2023/10/10 06:41 PMCR- 2024/10/01 CRDT- 2023/04/12 08:32 PHST- 2023/02/08 00:00 [revised] PHST- 2022/08/12 00:00 [received] PHST- 2023/03/29 00:00 [accepted] PHST- 2024/10/01 00:00 [pmc-release] PHST- 2023/10/10 06:41 [medline] PHST- 2023/04/13 06:00 [pubmed] PHST- 2023/04/12 08:32 [entrez] AID - 10.1002/jca.22053 [doi] PST - ppublish SO - J Clin Apher. 2023 Oct;38(5):514-521. doi: 10.1002/jca.22053. Epub 2023 Apr 12.