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Seasonal Distribution of Bell's Palsy
1Ear Nose and Throat Clinic, Kumluca State Hospital, Posta Kodu: 07350 Antalya, Turkey.
Summary
Bell's palsy (BP), a facial nerve paralysis, shows a seasonal pattern. This study found the highest incidence of Bell's palsy occurs during winter months, suggesting a link to weather conditions.
Area of Science:
- Neurology
- Epidemiology
- Otolaryngology
Background:
- Bell's palsy (BP) is the most common acute paralysis of the facial nerve with unknown causes.
- Adverse weather conditions are suspected to increase the risk of developing BP.
- BP primarily affects one side of the face.
Purpose of the Study:
- To investigate the seasonal incidence of Bell's palsy.
- To determine if BP exhibits seasonal variation.
Main Methods:
- A retrospective study analyzed 199 patients diagnosed with Bell's palsy.
- Data was collected from ENT clinics in Antalya, Turkey, between January 2017 and December 2020.
- Patient demographics and treatment dates were reviewed.
Main Results:
- The highest incidence of BP was observed in winter (December-February) at 35%.
- BP incidence was significantly higher in November, December, January, and February.
- The study found a statistically significant seasonal variation in BP occurrence (p < 0.05).
Conclusions:
- Bell's palsy demonstrates a distinct seasonal variation.
- The peak incidence of Bell's palsy occurs during the winter months.
- Further research is required to elucidate the specific reasons for these seasonal differences.
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