Chronobiology of Cerebral Vein and Dural Sinus Thrombosis

Cerebral vein and dural sinus thrombosis in adults in Isfahan, Iran: frequency and seasonal variation

“…Ferro et al (4) reported for the first time on seasonal variation in the incidence of CVST in a cohort of 91 Portuguese patients from 20 hospitals and found a unimodal distribution with the highest number of CVST cases during October. Ferro et al (4) reported for the first time on seasonal variation in the incidence of CVST in a cohort of 91 Portuguese patients from 20 hospitals and found a unimodal distribution with the highest number of CVST cases during October.…”

“…Limited information is available about the incidence of the CVST and none in Iran. Ferro et al (4) reported for the first time on seasonal variation in the incidence of CVST and found a unimodal distribution with the highest number of CVST cases during autumn and winter. The estimated incidence is three to four cases per million per year and up to seven cases per million per year among children (3).…”

“…Cerebral vein and dural sinus thrombosis (CVST) is a rare stroke type but potentially serious disorder, most often affecting children and young and middle-aged adults (1)(2)(3). It is associated with increased risks of disability and death (4). Its rate is higher in women.…”

“…The seasonal variation of CVST has not been well documented. Only two studies have examined the seasonal variation of CVST and suggested that the CVST rate may vary by season (4,5), but the results were inconsistent. Ferro et al (4) reported for the first time on seasonal variation in the incidence of CVST and found a unimodal distribution with the highest number of CVST cases during autumn and winter.…”

Barometric Pressure and the Incidence of Pulmonary Embolism

“…Cooler weather may have a thrombotic effect, with resulting higher rates of the cerebral and coronary thrombosis in the winter. 28,29 Stolz et al 30 found a biphasic distribution with the highest frequency of cerebral thrombosis in the summer and winter.…”