[Seasonal changes in the vascular tone of patients with cerebral circulatory disorders in an arid area].
For studying the seasonal changes in the cerebral blood flow and the tone of the cerebral vessels under conditions of the arid zone of the Turkmen SSR, clinicorheoencephalographic examinations of 65 patients with residual signs of cerebral stroke were carried out. The results of the dynamic seasonal examinations were compared with data obtained from 35 control subjects. Besides that 219 case histories of patients who had cerebrovascular disorders in 1977 were analyzed. A substantial lowering of the cerebral circulation intensity in winter, an instability and a drop of the cerebral blood flow and the vascular tone in spring, a rise of the vascular tone in summer, and a tendency (in the presence of this rise) to a lowering of the cerebral blood flow in autumn were revealed. Prophylactic measures for increasing the body resistance to unfavourable weather conditions are recommended.
D000328:Adult; D002545:Brain Ischemia / Q000503:physiopathology; D002543:Cerebral Hemorrhage / Q000503:physiopathology; D002560:Cerebrovascular Circulation; D002561:Cerebrovascular Disorders / Q000453:epidemiology / Q000503:physiopathology*; D003889:Desert Climate; D005260:Female; D006801:Humans; D008297:Male; D008875:Middle Aged; D010992:Plethysmography, Impedance; D012621:Seasons; D014423:Turkmenistan; D014887:Weather
Sezonnye izmeneniia sosudistogo tonusa u bol'nykh s rasstroĭstvami mozgovogo krovoobrashcheniia v usloviiakh aridnoĭ zony.