Abstract
Simple cardiopulmonary functions were studied serially in 26 mountaineers between sea level and an altitude of 25,200 ft. Up to 12,000 ft there was no altitude sickness, though there were complaints of leech bite (26.9%) and blisters (3.8%). One member died of exhaustion, two developed pulmonary oedema, one “flu” (at 15,600 ft) and one pleural rub (at 21,000 ft). Up to 16,000 ft altitude, 4 to 7.7% developed diarrhoea or epistaxis only, but at higher levels 25 to 50% subjects developed several symptoms, besides excessive dyspnea. These included diarrhoea (35–60%), vomiting (30%) abdominal pain (35–60%), rectal bleeding (15%), chest pain (10–40%), dry cough (40–60%), giddiness (30%) and poor memory (7.7%). A small rise in blood pressure was seen (for systolic at lower and diastolic at greater altitudes).
After 18,200 ft the steady increase seen in V E slowed and the rise in heart rate and respiratory rate (f) became steeper. After a small rise at 7,800 ft, FVC and FEVI showed a gradual decline at higher altitudes. After a large initial increase in PEFR up to 12,000 ft, a gradual decline was seen. The mean weight loss during the expedition was 8 ± 2.7 kg. These changes seem to be due to an incomplete acclimatisation, which future moutaineering teams should take into consideration to avoid health problems and improve performance.
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References
BuskirkE.R., KolliasJ., AkersR.F., ProkopE.K. and ReateaguiE.P. (1967): Maximal performance at altitude and on return from altitude in conditioned runners. J. Appl. Physiol. 23: 259–267.
CotesJ.E., DabbsJ.M., MalhotraM.S. and SaundersM.J. (1977): Why is the lung function of hill people superior to that of plain dwellers. Chapter 60, selected topics in Environmental Biology Ed. Bhatia B., Chhina G.S., Baldev Singh, Publ. Interprint Publications, New Delhi - 28.
GillM.B. and PughL.G.C.E. (1964): Basal metabolism and respiration in men living at 5800 m. (19000 ft). J. Appl. Physiol. 19: 949–954.
HackettP. and RennierD. (1976): The incidence and prophylaxis of acute mountain sickness. Lancet. 2: 1149–1155.
HuligrenH.N. and MarticorenaE.A. (1978): High altitude pulmonary edema: epidemiologic observations in Peru. Chest74: 372–376.
KamatS.R. and BanerjiB.C. (1972): Study of cardiopulmonary function on exposure to high altitude. I-acute acclimatisation to an altitude of 3500 to 4000 meters in relation to altitude sickness and cardiopulmonary function. Am. Rev. Resp. Dis. 106: 404–413.
KamatS.R., RaoT.L., SarmaB.S., VenkataramC. and RajuY.R.K. (1972): Study of cardiopulmonary function on exposure to high altitude. II — Effects of prolonged stay at 3500 to 4000 meters and reversal on return to sea level. Am. Rev. Resp. Dis. 106: 414–431.
KrygerM., AldrichF., ReevesJ.T. and GroverR.F. (1978): Diagnosis of air flow obstruction at high altitude. Am. Rev. Resp. Dis. 117: 1055–1058.
MenonN. (1965): High altitude pulmonary edema. N. Engl. J. Med. 273: 66–73.
MilledgeJ.S. (1983): Acute mountain sickness. Thorax. 38: 641–645.
PunghL.G.G.E. (1962): Physiological and medical aspects of the Himalayan scientific and mountaineering expedition. 1960–61 Brit. Med. J. 2: 621–627.
SinghI., KapilaCC, KhannaP.K., NandaR.B. and RaoB.D.P. (1965): High altitude pulmonary oedema. Lancet i: 229–234.
TenneyS.M., RahnH., StroudR.C. and MethoeferJ.C. (1953): Adaptation of high altitude: changes in lung volumes during the first seven days at Mt. Evans, Colorado. - J. Appl. Physiol. 5: 607–613.
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Rupwate, R.U., Chitaley, M. & Kamat, S.R. Cardiopulmonary functional changes in acute acclimatisation to high altitude in mountaineers. Eur J Epidemiol 6, 266–272 (1990). https://doi.org/10.1007/BF00150431
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DOI: https://doi.org/10.1007/BF00150431