title: Chronic mountain sickness.
abstract: Chronic mountain sickness was first described in the Peruvian Andes. It consists of an excesive polycythemia for the altitude of residence. Its main symptoms are of cerebral congestion and occasionally of right heart insufficiency. The authors postulate that it is caused by a decay of the ventilatory rate with age with the corresponding increase in hematocrit.
mesh_terms: D000293:Adolescent; D000328:Adult; D000367:Age Factors; D000368:Aged; D000532:Altitude Sickness / Q000097:blood / Q000150:complications*; D000818:Animals; D002648:Child; D002675:Child, Preschool; D002908:Chronic Disease; D006400:Hematocrit; D006801:Humans; D000860:Hypoxia / Q000150:complications*; D008875:Middle Aged; D010568:Peru; D011087:Polycythemia Vera / Q000209:etiology*; D012119:Respiration; D013577:Syndrome