The Heart and Pulmonary Circulation at High Altitudes
نویسندگان
چکیده
منابع مشابه
Pulmonary circulation of the llama at high and low altitudes.
We have studied the pulmonary circulation of three closely related animals, the llama, alpaca, and guanaco. The mean pulmonary arterial pressure of 12 llamas and one alpaca indigenous to high altitude in the Andes was found to be slightly but significantly higher than that of three llamas and three guanacos born and bred at low altitude in England. On the other hand, the medial thickness of the...
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More than 140 million people worldwide live >2500 m above sea level. Of them, 80 million live in Asia, and 35 million live in the Andean mountains. This latter region has its major population density living above 3500 m. The primary objective of the present study is to review the physiology, pathology, pathogenesis, and clinical features of the heart and pulmonary circulation in healthy highlan...
متن کاملBronchial circulation in high altitudes.
ZAPATA-ORTIZ, VICENTE, RAMIRO CASTRO DE LA MATA, ENRIQUE FERNANDEZ, ARTURO GEU, AND LUIS BATALLA. Bronchial circulation in high altitudes. Am. J. Physiol. 2 I 2 (6) : I #j41468. 1967. -Bronchial circulation and bronchopulmonary anastomoses have been studied in two groups of sheep native to the high Andes (above 4,000 m) and to the Peruvian coastal plain. The high altitude-adapted animals showed...
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It has been clearly recognized that a low barometric pressure, when first encountered, may interfere with the normal workings of the human machine, but that later by compensatory responses the body may become adapted to the new conditions. The outstanding variable encountered in ascents to high altitudes by airplane, dirigible, free balloon, or mountaineering is the tenuousness of the atmospher...
متن کاملKala-Azar at High Altitudes
Sir,?Major P. Savage, i.m.s., in the June number of your journal lias recorded the apparent occurrence of indigenous kala-azar at Sanawar in the Simla Hills, where up to that time the presence of Phlcbotomus argcntipcs, the suspected carrier of kala-azar, had not been reported. It is, therefore, of interest to note that in a collection of Phlcbotomus from Sanawar village, kindly given me by Cap...
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ژورنال
عنوان ژورنال: Circulation
سال: 2007
ISSN: 0009-7322,1524-4539
DOI: 10.1161/circulationaha.106.624544