Affiliation:
1. Vladivostok Branch of Far Eastern Scientific Center of Physiology and Pathology of Respiration - Research Institute of Medical Climatology and Rehabilitation Treatment
Abstract
Introduction. The climatic factors affect the mucous membrane of the respiratory tract contacting with the environment. The investigation of pulmonary ventilation plays a leading role in the diagnosis of bronchial obstruction in response to an external stimulus. Material and methods. The study included a healthy population of the city and patients with chronic catarrhal nonobstructive bronchitis (CCNB), controlled and uncontrolled asthma (131 people). The respiratory function (RF) was estimated by spirography and body plethysmography. Meteorological conditions were evaluated from the point of view of contrasting weather changes (on the survey day, on 1st and 2nd days before the survey). The degree of the climatic impact on RF was determined by the statistical module “Discriminant analysis”, used to a group of RF indices relatively adverse levels of impact of the monsoon climate. Results. The low level of the responsiveness in a healthy urban population was identified. The negative impact of climatic indices on the respiratory system in CCNB patients was observed mainly in extreme weather conditions. The influence of climatic conditions on patients with asthma depends on the level of the disease control. Discussion. The influence of climatic conditions was found to be within the adaptive and compensatory responses in a group of healthy people and CCNB patients. We assumed the use of basic drugs in patients with asthma without signs of bronchial obstruction to reduce the susceptibility of the receptors of the bronchi to the negative climatic impact. The greatest negative RF response to the impact of monsoon climate manifested both in static and in dynamic weather conditions, was observed in patients with uncontrolled asthma. It was associated with the impaired pulmonary ventilation. Conclusion. The results indicate the Far East monsoon climate to be an important risk factor for the exacerbation in patients with respiratory diseases.
Publisher
Federal Scientific Center for Hygiene F.F.Erisman
Subject
Health, Toxicology and Mutagenesis,Public Health, Environmental and Occupational Health,Pollution,General Medicine
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