Email this article FIVE-YEAR MONITORING OF ANNUAL PULMONARY FUNCTION DECLINE IN INDIVIDUALS EXPOSED TO CHRONIC INTERMITTENT HYPOXIA
- Authors: Vinnikov DV1
-
Affiliations:
- Kyrgyz State Medical Academy
- Issue: Vol 84, No 3 (2012)
- Pages: 45-48
- Section: Editorial
- URL: https://journals.rcsi.science/0040-3660/article/view/31005
- ID: 31005
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Abstract
Aim. To study annual decline of pulmonary function in individuals exposed to chronic intermittent hypoxia (CIH) working in conditions of high altitude for 5 years. Material and methods. A total of 9553 spirograms were obtained during 5 annual examinations of 795 open-cast miners (age 38.6 ± 8.5 years, 6.4 ± 5.0 years of service) working at the altitude of 3800-4500 m above the sea level. The miners were examined using spirometry with bronchodilation test. Results. An annual decline of vital lung capacity (VC) was 33.5 ml/year, of forced VC 33.8 ml/year, forced expiratory volume (FEV) 64.4 ml/year. In the group of non-smokers the decline was less than in smokers FEV. 59.5 ml/year vs 72.0 ml/year. No-smoking rules in the open-cast mine inhibited a respiratory function decline. Conclusion. Individuals exposed to CIH show an accelerated decline of spirometric indices. No-smoking rules at open-cast high altitude mines result in inhibition of annual decline of respiratory function in CIH-exposed individuals including non-smokers. Smoking ban in such conditions not only inhibits decline of the respiratory function but improves this function.
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##article.viewOnOriginalSite##About the authors
D V Vinnikov
Kyrgyz State Medical Academy
Email: denisvinnikov@mail.ru
Медицинский отдел Кумтор Оперейтинг Компани
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