Tissue plasminogen activator challenge thrombelastography is the most accurate assay in predicting the need for massive transfusion in hypotensive trauma patients - 22/11/23
, Ernest E. Moore b, c, Fredric Pieracci b, c, Angela Sauaia dAbstract |
Background |
Tissue plasminogen activator (tPA) added to thrombelastography (TEG) detects hyperfibrinolysis by measuring clot lysis at 30 min (tPA-challenge-TEG). We hypothesize that tPA-challenge-TEG is a better predictor of massive transfusion (MT) than existing strategies in trauma patients with hypotension.
Methods |
Trauma activation patients (TAP, 2014–2020) with 1) systolic blood pressure <90 mmHg (early) or 2) those who arrived normotensive but developed hypotension within 1H postinjury (delayed) were analyzed. MT was defined as >10 RBC U/6H postinjury or death within 6H after ≥1 RBC unit. Area under the receiver operating characteristics curves were used to compare predictive performance. Youden index determined optimal cutoffs.
Results |
tPA-challenge-TEG was the best predictor of MT in the early hypotension subgroup (N = 212) with positive (PPV) and negative predictive values (NPV) of 75.0%, and 77.6%, respectively. tPA-challenge-TEG was a better predictor of MT than all but TASH (PPV = 65.0%, NPV = 93.3%) in the delayed hypotension group (N = 125).
Conclusions |
The tPA-challenge-TEG is the most accurate predictor of MT in trauma patients arriving hypotensive and offers early recognition of MT in patients with delayed hypotension.
Il testo completo di questo articolo è disponibile in PDF.Highlights |
• | tPA-challenge TEG LY30 predicts massive transfusion in hypotensive patients. |
• | tPA-TEG LY30 predicts massive transfusion in delayed traumatic hemorrhagic shock. |
• | 75% of patients with tPA-challenge-TEG LY30 > 60.6% will require massive transfusion. |
Keywords : Massive transfusion, Hypotension, Hemorrhagic shock, Resuscitation, Coagulopathy, Thrombelastography
Mappa
Vol 226 - N° 6
P. 778-783 - dicembre 2023 Ritorno al numero
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