Page 33 - Revista Portuguesa - SPORL - Vol 62. Nº1

Figure 3
The association between the weekly number of BPPV patients and the weekly mean value of climate
factors: (a) atmospheric temperature, (b) atmospheric pressure, (c) humidity, (d) cloud amount, (e)
daylight time and (f) solar radiation.

Discussion In order to minimize BPPV incidence and
BPPV is the most common vestibular disorder recurrence, it is necessary to understand the
across the lifespan and frequently presents pathophysiology of BPPV and to investigate
with a limited period with clusters of episodes, the factors associated with it. Several studies
followed by an interval of no attacks before have reported seasonal variation in BPPV.
recurring again. The BPPV 5-year recurrence Whitman et al. analyzed 956 visits for BPPV
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rate was reportedly around 50%. The results over 5 years in Boston (United States of
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of this study are in agreement with those America), and reported that the incidence of
reported in the literature regarding the age, BPPV was significantly higher during the early
gender, semicircular canal and affected sides. 12 spring months (March to May). Zuma e Maia
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Volume 62 . Nº1 . Março 2024 33