OBJECTIVE: To determine the effects of ethanol (EtOH) ingestion by tra
uma patients on the hematologic system as evidenced by coagulation abn
ormalities and transfusion requirements. DESIGN: Retrospective chart r
eview. The injury severity score (ISS) was determined for each patient
. Patients were grouped according to presence of EtOH (+EtOH) and abse
nce of EtOH (-EtOH) with further subdivision based on an ISS less-than
-or-equal-to 8 or greater-than-or-equal-to 9. SETTING: University medi
cal center. PATIENTS: All adult trauma patients admitted during a one-
month period. MAIN OUTCOME MEASURES: The volume of resuscitation fluid
s (including blood products) administered, laboratory parameters indic
ative of bleeding, and length of stay. RESULTS: Of 104 evaluable patie
nts, 38 had measurable EtOH concentrations, 46 had undetectable EtOH c
oncentrations, and the remaining 20 patients had not been tested. Alth
ough isolated, statistically significant differences were found among
groups for some of the outcome measures, there were no clinically impo
rtant differences. CONCLUSIONS: EtOH ingestion prior to injury did not
appear to cause significant alterations in the hematologic system of
trauma patients, but a larger study is needed to confirm these finding
s.