Deep Vein Thrombosis in Extracorporeal Membrane Oxygenation Bridged Lung Transplant Recipients

O. Shtraichman, A. Courtwright, J. M. Diamond, V. Ahya, J. D. Christie, D. Hadjiliadis, J. C. Lee, N. B. Patel, A. Berg, E. Cantu, M. M. Crespo, C. A. Bermudez

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PURPOSE: Rates of deep vein thrombosis (DVT) range from 20-60% in patients undergoing extracorporeal membrane oxygenation (ECMO) for acute respiratory distress syndrome. Data on the rates of DVT in lung transplant recipients bridged with ECMO is limited. The objective of this study was to report incidence and outcomes, including use of anticoagulation and subsequent bleeding rates, of DVT in ECMO-bridged transplant recipients. METHODS: This was a single center retrospective cohort study of all adult ECMO-bridged lung transplant recipients from 5/1/15 to 9/30/19. Recipients underwent routine ultrasound screening for upper extremity (UE) and lower extremity (LE) DVT following ECMO decannulation. RESULTS: Of the 45 ECMO-bridged recipients, 3 died before ECMO decannulation and 4 did not have screening ultrasounds, leaving 38 patients in the cohort. The majority (81.5%) were bridged using venovenous ECMO and most (63%) were decannulated immediately following transplant (Table 1). Among remaining recipients, mean time to decannulation was 4 days. Among recipients with adequate studies, the incidence of LE DVT was 26.4% and the incidence of UE DVT was 63.6%. Neither total time on ECMO, cannula size, nor need for femoral vein cannulation was associated with LE or UE DVT. All of the recipients with LE DVT but two, were anticoagulated. Three needed an inferior vena cava filter placed. Of recipients with UE DVT only, 43.75% were anticoagulated. Among all anticoagulated recipients, five (31.25%) had significant bleeding during their initial hospitalization requiring cessation of anticoagulation. CONCLUSION: DVTs are common in patients bridged to lung transplantation with ECMO, particularly in the upper extremity. Bleeding poses further challenges for systemic anticoagulation in this high risk population. Additional studies are needed to identify risk factors for both LE DVT and for bleeding to help guide decisions for systemic anticoagulation in this population.

All Science Journal Classification (ASJC) codes

  • Surgery
  • Pulmonary and Respiratory Medicine
  • Cardiology and Cardiovascular Medicine
  • Transplantation

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