Impact of an updated venous thromboembolism prophylaxis guideline in critically ill trauma patients on rates of venous thromboembolisms.

Introduction: The objective of this analysis was to evaluate differences in incidence of venous thromboembolisms (VTE) in critically ill trauma patients between pre- and post-implementation of updated VTE prophylaxis guidelines.

Methods: This was a pre-post analysis of critically ill trauma patients receiving pharmacologic VTE prophylaxis. Trauma patients were included if they had an intensive care unit admission during their hospitalization. The primary outcome was incidence of detected VTE and was analyzed using a Chi-Squared test. A multivariate analysis assessed the effects of guideline implementation on VTE development when controlling for confounders.

Results: There were 220 patients included. There was a significant increase in low molecular weight heparin use in initial (p ​= ​0.003) and final (p ​= ​0.004) prophylactic regimens between groups. There was no significant difference in VTE incidence between the pre and post groups (6.3% vs 1.9%, p ​= ​0.10). The multivariate analysis showed guideline implementation was independently associated with an 88% reduced odds of VTE (p ​= ​0.04).

Conclusion: This analysis suggests the updated VTE prophylaxis guideline implementation was associated with a trend toward reduced VTE development among critically ill trauma patients.