Antivenom Does Not Cause Snakebite Complications, Withholding It Does

Charles J Gerardo1, Andrew W Godfrey1, Spencer Greene2

  • 1Department of Surgery, 12277Duke University School of Medicine, Durham, NC, USA.

The American Surgeon
|March 25, 2022
PubMed

Insights

Crotalidae Polyvalent Immune Fab (Fab) antivenom is effective for snakebites, particularly in mild cases. Further US-based cost-effectiveness studies are needed to align with global findings and RCT evidence.

Area of Science:

  • Toxicology
  • Pharmacology
  • Clinical Medicine

Background:

  • The efficacy of US snake antivenoms, specifically Crotalidae Polyvalent Immune Fab (Fab), is well-established.
  • A randomized double-blind placebo-controlled clinical trial (RCT) confirmed Fab antivenom efficacy using patient-centered outcomes.

Discussion:

  • The retrospective study by Bowden et al. warrants discussion due to potential discordance with existing RCT evidence.
  • While global cost-effectiveness of antivenom is demonstrated, US-specific studies are lacking.

Key Insights:

  • Fab antivenom benefits were observed in a predominantly mildly envenomated population in a time-dependent manner.
  • Patient-reported outcomes and return of functionality are key indicators of antivenom efficacy.

Outlook:

  • Further research is needed to establish the cost-effectiveness of Fab antivenom in the US.
  • Aligning evidence from retrospective reviews with RCTs is crucial for clinical practice guidelines.

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