Narrow pulse pressure is independently associated with massive transfusion and emergent surgery in hemodynamically stable trauma patients

Am J Surg. 2020 Nov;220(5):1319-1322. doi: 10.1016/j.amjsurg.2020.06.042. Epub 2020 Jul 20.

Abstract

Introduction: Narrow pulse pressure (PP) is a sign of Class-II hemorrhage, but its clinical relevance is unknown. We hypothesized narrow PP is related to significant transfusion and need for emergent surgery.

Methods: Hemodynamically stable (SBP >/ = 90 mmHg) trauma patients were retrospectively reviewed. Narrow PP patients (<40 mmHg) were compared to normal patients (>/ = 40 mmHg). Outcomes included need for significant transfusion (>/ = 10 units) and emergent cavitary surgery.

Results: From 18,978 hemodynamically stable trauma patients admitted, 13% had narrow PP. They statistically required more massive transfusion, emergent surgery, or both (p < 0.0001), as well as higher mortality, longer hospital stay, and ICU stay (p < 0.0001). After controlling for age, gender, injury, ISS and GCS, NPP was independently associated with both significant transfusion and emergent surgery.

Conclusion: In hemodynamically stable trauma patients, narrow PP is independently associated with three-fold increase in significant transfusion need and two-fold increase in emergent surgery need. Early identification of these patients may lead to more accurate and optimal intervention.

Keywords: Blood transfusion; Pulse pressure; Trauma.

MeSH terms

  • Adult
  • Aged
  • Aged, 80 and over
  • Blood Pressure
  • Blood Pressure Determination
  • Blood Transfusion / statistics & numerical data*
  • Case-Control Studies
  • Clinical Decision Rules
  • Emergencies
  • Female
  • Hemorrhage / diagnosis*
  • Hemorrhage / etiology
  • Hemorrhage / therapy
  • Humans
  • Linear Models
  • Logistic Models
  • Male
  • Middle Aged
  • Prognosis
  • Retrospective Studies
  • Surgical Procedures, Operative / statistics & numerical data*
  • Wounds and Injuries / complications
  • Wounds and Injuries / diagnosis
  • Wounds and Injuries / physiopathology*
  • Wounds and Injuries / therapy*