DCR-like restrictive resuscitation is associated with enhanced oxygen metabolism, coagulation recovery, and reduced inflammation in severe chest trauma and shock

Why clinicians should know about it

• Picked for Emergency Medicine (paper of the day, 31 July 2026).

Abstract

BACKGROUND: The optimal fluid resuscitation strategy for severe chest trauma with hemorrhagic shock remains debated, with limited evidence incorporating comprehensive physiological endpoints. This study compared a restrictive (damage-control resuscitation-like) strategy versus conventional crystalloid-predominant resuscitation in this high-risk population. METHODS: This single-center retrospective cohort study used propensity score matching (1:1) to balance age, sex, Injury Severity Score, and shock severity, yielding 200 matched patients (100 per group). Outcomes included 28-day survival, major complications (ARDS, DIC, MODS), ventilator- and ICU-free days, and serial (0-72 h) assessments of oxygen metabolism (SvO2, DO2, VO2, lactate), coagulation (APTT, PT, HCT), and inflammatory markers (IL-6, IL-10, TNF-α). Exploratory composite metrics (Oxygen Debt Index, Coagulation Recovery Rate, Inflammation Burden Score) were also evaluated. RESULTS: The restrictive group received significantly less total fluid (1985 ± 325 vs. 2846 ± 492 mL, P < 0.001) with higher fluid efficiency. It was associated with faster recovery in oxygen metabolism (lower ODI, P < 0.001, and higher lactate clearance), more rapid coagulation normalization (higher CRR and better APTT/PT), and steeper declines in inflammatory markers (IL-6, TNF-α) and IBS. Clinically, restrictive strategy was associated with higher 28-day survival (95% vs. 82%, P = 0.003), lower ARDS (16% vs. 34%), DIC (7% vs. 20%), and MODS (15% vs. 36%), and more ventilator- and ICU-free days. In multivariable analysis, restrictive resuscitation remained independently associated with lower 28-day mortality (HR = 0.23, 95% CI 0.09-0.58). CONCLUSION: In this observational, single-center study, a DCR-like restrictive strategy was associated with superior physiological trajectories and improved short-term clinical outcomes compared with conventional resuscitation. These hypothesis-generating findings do not establish causality and underscore the need for prospective randomized controlled trials before any practice change.

Abstract as published, via PubMed.