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Exploring risk factors for Raynaud's phenomenon post COVID-19 vaccination
Tzu-Chuan Ho1, Shih-Chang Chuang2, Kuo-Chen Hung3
1Department of Medical Imaging and Radiological Sciences, Kaohsiung Medical University, Kaohsiung 807, Taiwan.
Vaccine
|October 28, 2024
Summary
Raynaud's phenomenon (RP) has been reported after COVID-19 vaccination, but a causal link remains unproven due to small sample sizes and study limitations. Physicians should remain vigilant for RP in vaccinated individuals.
Area of Science:
- Medical Research
- Vaccinology
- Dermatology
Background:
- Recent observations suggest a potential link between COVID-19 vaccination and Raynaud's phenomenon (RP).
- The direct causal relationship between COVID-19 vaccines and RP is not yet established.
- This study investigates the association between RP and COVID-19 vaccination.
Purpose of the Study:
- To examine the potential causation between Raynaud's phenomenon and COVID-19 vaccination.
- To synthesize existing clinical findings on RP post-vaccination.
- To assess the characteristics of RP cases following COVID-19 vaccination.
Main Methods:
- Systematic literature search of PubMed, EMBASE, and Web of Science (Jan 2020 - Mar 2024).
- Inclusion of case reports and case series detailing clinical findings.
- Exclusion of conference abstracts, editorials, preprints, and non-COVID-19 vaccination studies.
Main Results:
- Six articles (5 case reports, 1 case series) involving 24 patients were included.
- RP post-vaccination was more common in females (70.83%).
- 87.5% of patients had pre-existing or potential predisposing factors for RP.
- mRNA vaccines were associated with 75% of RP cases; dose number was not a significant factor.
Conclusions:
- Causation between RP and COVID-19 vaccination cannot be established due to high risk of bias from uncontrolled designs and small sample sizes.
- Observed RP cases may be independent of vaccination.
- Healthcare providers should maintain vigilance for RP in vaccinated individuals, given the increasing vaccination rates.
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