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. Author manuscript; available in PMC: 2016 Dec 1.
Published in final edited form as: J Trauma Acute Care Surg. 2015 Dec;79(6):925–929. doi: 10.1097/TA.0000000000000871

Table 1. Summary of Blood Product Utilization in the Unmatched Patient Population (n=572).

Non-survivor and survivor groups are subdivided by thrombelastogram (TEG) pattern. “Black diamond” refers to TEG tracings with a time to maximum amplitude (TMA) ≤ 14 minutes and a time to total lysis (TTL) <30 minutes past MA. Non-black diamond (non-BD) TTL <30 min refers to all other TEG tracing pattern that go to complete clot lysis (i.e. return of the TEG tracing to baseline) by the termination of the test at 30 minutes past MA (at the calculation point for the LY30 parameter). Other hyperfibrinolysis (HF) is all other tracings displaying an LY30 ≥3% but not going to complete lysis within the test period. Non-HF refers to all TEG tracings not displaying HF (i.e. LY30 <3%). PRBC = packed red blood cells; FFP = fresh frozen plasma.

TEG Pattern N PRBCs FFP Platelets Cryoprecipitate
Median IQR Median IQR Median IQR Median IQR
Non-Survivors Black Diamond 14 17 13--38 6 10 -- 13 1 0--3 0 0--2
Non-BD, TTL <30
Min 6 12 9--35 5 2--15 0 0--2 0 0--0
Other HF 11 6 5--24 4 2--11 1 0--2 2 0--2
Non-HF 91 6 2--14 4 2--8 1 0--2 0 0--2
Survivors Black Diamond 0 n/a n/a n/a n/a n/a n/a n/a n/a
Non-BD, TTL <30
Min 1 34 n/a 26 n/a 0 n/a 4 n/a
Other HF 53 3 1--8 2 0--5 0 0--0 0 0--0
Non-HF 396 3 2--7 0 0--4 0 0--1 0 0--0