Critical appraisal of methodological rigor in a systematic review on post-COVID-19 vaccination-associated olfactory dysfunction
Volume: 0 - Issue: 0
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T. Gupta - J.K. Verma
DOI: 10.4193/Rhin25.440
We read with keen interest the article by Kawabata et al. titled “Olfactory disorder after COVID-19 vaccination,” which explores 16 cases of olfactory dysfunction temporally associated with vaccination. The paper addresses an important and under-recognized topic; however, several methodological aspects warrant clarification to aid accurate interpretation.
First, the inclusion of five institutional cases within a review otherwise presented as PRISMA-compliant raises questions regarding methodological consistency. Under PRISMA, all included studies should be identified through transparent and reproducible database searches. Clarifying whether institutional data were processed separately from literature-derived cases would strengthen transparency and avoid confusion about the evidence level.
Rhinology 0 - 0: 0-0, 0000
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