Can iloprost be used for treatment of cold weather injury at the point of wounding in a forward operating environment? A literature review

ABSTRACT

Introduction: Cold Weather Injury (CWI) represents a spectrum of pathology, the two main divisions being Freezing Cold Injury (FCI) and Non-Freezing Cold Injury (NFCI). Both are disabling conditions associated with microvascular and nerve injury often treated hours after initial insult when presenting to a healthcarestablishment. Given that iloprost is used for the treatment of FCI, could it be used in a forward operating environment to mitigate treatment delay? Is there a role for its use in the forward treatment of NFCI? This review sought to evaluate the strength of evidence for the potential use of iloprost in a forward operating environment.

Methods: Literature searches were undertaken using the following question for both FCI and NFCI: in [patients with FCI/NFCI] does [the use of iloprost] compared to [standard care] reduce the incidence of [long-term complications]. Medline, CINAHL and EMBASE databases were searched using the above question and relevant alternative terminology. Abstracts were reviewed before full articles were requested.

Results: The FCI search yielded 17 articles that were found to refer to the use of iloprost and FCI. Of the 17, one referred to pre-hospital treatment of frostbite at K2 base camp; however, this was utilising tPA. No articles referred to pre-hospital use in either FCI or NFCI.

Discussion: Although evidence exists to support the use of iloprost in the treatment of FCI, its use to date has been in hospital. A common theme is delayed treatment due to the challenges of evacuating casualties from a remote location. There may be a role for iloprost in the treatment of FCI; however, further study is required to better understand the risk of its use.

KEYWORDS:

• Frostbite
• iloprost
• NFCI
• military
• cold injury

Acknowledgments

The authors wish to express their thanks for the support of the Burnett Library, Defence Medical Services, Whittington Barracks for sourcing all papers required for this literature review.

Disclosure statement

No potential conflict of interest was reported by the author(s).

Author contributions

All authors developed the scope and search criteria for this review as well as critically reviewing all drafts of the manuscript, edited and approved the final draft for submission.