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Vitamin C for preventing and treating tetanus
1University of Helsinki, Department of Public Health, POB 41, Mannerheimintie 172, Helsinki, Finland, FIN-00014. harri.hemila@helsinki.fi
The Cochrane Database of Systematic Reviews
|April 22, 2008
Summary
Vitamin C may reduce tetanus mortality, but evidence is limited. A single trial showed significant reductions in children and young adults, though more research is needed to confirm these findings for tetanus treatment.
Area of Science:
- Infectious Diseases
- Nutritional Science
- Clinical Trials
Background:
- Tetanus remains a significant global health concern, particularly in regions with low vaccination coverage.
- Elderly populations in developed countries are also at risk due to waning immunity.
- Animal studies suggest vitamin C (ascorbic acid) has protective effects against infections, including tetanus toxin.
Purpose of the Study:
- To evaluate the potential prophylactic and therapeutic benefits of vitamin C in managing tetanus.
- To synthesize evidence from controlled trials on vitamin C's role in tetanus prevention and treatment.
Main Methods:
- Comprehensive literature search across multiple databases including CENTRAL, MEDLINE, and EMBASE up to January 2008.
- Inclusion of controlled trials of vitamin C for tetanus, regardless of language or publication status.
- Independent data extraction and inclusion decisions by two review authors.
Main Results:
- A single, non-randomized trial conducted in Bangladesh involving 117 patients met the inclusion criteria.
- Intravenous vitamin C (1 g/day) alongside conventional treatment showed a 100% reduction in mortality in children (1-12 years) and a 45% reduction in young adults (13-30 years).
- Results were stratified by age group, with statistically significant confidence intervals for the observed mortality reductions.
Conclusions:
- The sole eligible trial suggests a substantial decrease in tetanus-related mortality with vitamin C treatment.
- However, significant concerns regarding the trial's quality and reporting necessitate cautious interpretation of these findings.
- Vitamin C cannot be recommended for tetanus treatment based on current evidence; further high-quality trials are essential.
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