Outcomes after ultramassive transfusion in the modern era: An Eastern Association for the Surgery of Trauma multicenter study

Zachary A. Matthay, Zane J. Hellmann, Rachael A. Callcut, Ellicott C. Matthay, Brenda Nunez-Garcia, William Duong, Jeffry Nahmias, Aimee K. Lariccia, M. Chance Spalding, Satya S. Dalavayi, Jessica K. Reynolds, Heather Lesch, Yee M. Wong, Amanda M. Chipman, Rosemary A. Kozar, Liz Penaloza, Kaushik Mukherjee, Khaled Taghlabi, Christopher A. Guidry, Sirivan S. SengAsanthi Ratnasekera, Amirreza Motameni, Pascal Udekwu, Kathleen Madden, Sarah A. Moore, Jordan Kirsch, Jesse Goddard, James Haan, Kelly Lightwine, Julianne B. Ontengco, Daniel C. Cullinane, Sarabeth A. Spitzer, John C. Kubasiak, Joshua Gish, Joshua P. Hazelton, Alexandria Z. Byskosh, Joseph A. Posluszny, Erin E. Ross, John J. Park, Brittany Robinson, Mary Kathryn Abel, Alexander T. Fields, Jonathan H. Esensten, Ashok Nambiar, Joanne Moore, Claire Hardman, Pranaya Terse, Xian Luo-Owen, Anquonette Stiles, Brenden Pearce, Kimberly Tann, Khaled Abdul Jawad, Gabriel Ruiz, Lucy Z. Kornblith

Research output: Contribution to journalArticlepeer-review

27 Scopus citations


BACKGROUND Despite the widespread institution of modern massive transfusion protocols with balanced blood product ratios, survival for patients with traumatic hemorrhage receiving ultramassive transfusion (UMT) (defined as ≥20 U of packed red blood cells [RBCs]) in 24 hours) remains low and resource consumption remains high. Therefore, we aimed to identify factors associated with mortality in trauma patients receiving UMT in the modern resuscitation era. METHODS An Eastern Association for the Surgery of Trauma multicenter retrospective study of 461 trauma patients from 17 trauma centers who received ≥20 U of RBCs in 24 hours was performed (2014-2019). Multivariable logistic regression and Classification and Regression Tree analysis were used to identify clinical characteristics associated with mortality. RESULTS The 461 patients were young (median age, 35 years), male (82%), severely injured (median Injury Severity Score, 33), in shock (median shock index, 1.2; base excess,-9), and transfused a median of 29 U of RBCs, 22 U of fresh frozen plasma (FFP), and 24 U of platelets (PLT). Mortality was 46% at 24 hours and 65% at discharge. Transfusion of RBC/FFP ≥1.5:1 or RBC/PLT ≥1.5:1 was significantly associated with mortality, most pronounced for the 18% of patients who received both RBC/PLT and RBC/FFP ≥1.5:1 (odds ratios, 3.11 and 2.81 for mortality at 24 hours and discharge; both p < 0.01). Classification and Regression Tree identified that age older than 50 years, low initial Glasgow Coma Scale, thrombocytopenia, and resuscitative thoracotomy were associated with low likelihood of survival (14-26%), while absence of these factors was associated with the highest survival (71%). CONCLUSION Despite modern massive transfusion protocols, one half of trauma patients receiving UMT are transfused with either RBC/FFP or RBC/PLT in unbalanced ratios ≥1.5:1, with increased associated mortality. Maintaining focus on balanced ratios during UMT is critical, and consideration of advanced age, poor initial mental status, thrombocytopenia, and resuscitative thoracotomy can aid in prognostication.

Original languageEnglish (US)
Pages (from-to)24-33
Number of pages10
JournalJournal of Trauma and Acute Care Surgery
Issue number1
StatePublished - 2021

All Science Journal Classification (ASJC) codes

  • Surgery
  • Critical Care and Intensive Care Medicine


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