[Microcirculatory changes in patients with the initial manifestations of cerebral circulatory failure under the conditions of an arid zone].

Microcirculation was studied in 53 ICCD patients: 28 lived in comfortable weather conditions while 25 patients lived in heat discomfort in arid climatic zone. It is shown that heat discomfort led to compensatory microvascular reactions providing proper supply of oxygen to organs and tissues: tortuosity and dilation of the microvessels, opening of the capillaries, shunting in relative hypoxia and hyperthermia.