Key result
Vasovagal syncope episodes exhibited a circadian pattern with a significantly higher frequency during the morning compared to other periods of the day (P < 0.01).
Why the study?
Are there daily, weekly, monthly, or seasonal patterns in the occurrence of vasovagal syncope in patients with severe neurally mediated syncope?
Population
106 patients aged 30 years or older with severe neurally mediated syncope who had at least one recorded…
Design
Cohort
Authors
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Supports morning vigilance counseling in recurrent cases; leaves open whether chronotherapy alters vasovagal syncope incidence.
Observational (n=106)
Yes
Are there daily, weekly, monthly, or seasonal patterns in the occurrence of vasovagal syncope in patients with severe neurally mediated syncope?
p-value: p=<0.01
Vasovagal syncope exhibits a circadian pattern with a morning peak, similar to diurnal variations in blood pressure and heart rate, but lacks weekly, monthly, or seasonal variation.
Dijk et al. (2007) conducted an observational in Vasovagal syncope (n=106). Vasovagal syncope episodes exhibited a circadian pattern with a significantly higher frequency during the morning compared to other periods of the day (P < 0.01).
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