Resuscitative Thoracotomy for Traumatic Cardiac Arrest: Potential Impact of Resource Constraint on Outcomes and Blood Product Utilization.

Introduction: Resuscitative thoracotomy (RT) in the setting of traumatic arrest serves as a vital but resource-intensive intervention. The COVID-19 pandemic has created critical shortages, sharpening the focus on efficient resource utilization. This study aims to compare RT performance and blood product utilization before and after the onset of the COVID-19 pandemic for patients in traumatic cardiac arrest.

Methods: All patients undergoing RT for traumatic cardiac arrest in the emergency department at our American College of Surgeons-verified Level 1 trauma center (August 01, 2017-July 31, 2022) were included in this retrospective observational study. Study groups were dichotomized into pre-COVID (before October 03, 2020) versus COVID (from October 03, 2020 on) based on patient arrival date demographics, clinical/injury data, and outcomes were collected. The primary outcome was blood product transfusion <4 h after presentation.

Results: 445 RTs (2% of 23,488 trauma encounters) were performed over the study period: Pre-COVID, n = 209 (2%) versus COVID, n = 236 (2%) (P = 0.697). Survival to discharge was equivalent Pre-COVID versus COVID (n = 22, 11% versus n = 21, 9%, P = 0.562). RT patients during COVID consumed a median of 1 unit less packed red blood cells at the 4 h measurement (3.0 [1.8-7.0] versus 3.9 [2.0-10.0] units, P = 0.012) and 1 unit less of platelets at the 4 h measurement (4.3 [2.6-10.0] versus 5.7 [2.9-14.4] units, P = 0.012) compared to Pre-COVID. These findings were persistent after performing multivariable negative binomial regression.

Conclusions: Rates of RT and survival after RT remained consistent during the pandemic. Despite comparable RT frequency, packed red blood cells and platelet transfusions were reduced, likely reflecting resource expenditure minimization during the severe blood shortages that occurred during the pandemic. RT performance for patients in traumatic arrest may, therefore, be feasible during global pandemics at prepandemic frequencies as long as particular attention is paid to resource expenditure.