Home | About us | Editorial Board | Search | Ahead of print | Current Issue | Archives | Instructions | Online submissionContact Us   |  Subscribe   |  Advertise   |  Login  Page layout
Wide layoutNarrow layoutFull screen layout
Lung India Official publication of Indian Chest Society  
  Users Online: 554   Home Print this page  Email this page Small font size Default font size Increase font size
Year : 1998  |  Volume : 16  |  Issue : 2  |  Page : 65-68

Effect Of Climatic Variation On Spirometric Indices In Patients Of Bronchial Asthma



Correspondence Address:
Dushyant Sharma


Login to access the Email id

Source of Support: None, Conflict of Interest: None


Rights and PermissionsRights and Permissions

The effect of temperature and humidity on pulmonary function was studied in 25 patients of bronchial asthma and 10 normal subjects. The effect was studied by recording the influence of cold dry air, cold humid air, warm dry air, and warm humid air inhalations on pulmonary function in each subject. The average fall in forced expiratory volume in one second (FEV1) and peak expiratory flow rate (PEFR) from pre-test value with cold dry air inhalation was 12.9% and 10.9% respectively, and with cold humid air 3.9% and 3.7% respectively. Warm dry air produced a fall of 6.4% and 3.6% in FEV1 and PEFR respectively. However, warm humid air inhalations registered an increase of 1.6% and 1.9% in FEV1 and PEFR respectively. All these changes were statistically significant. No significant change was observed in control subjects. This study suggests that the adverse effects of temperature and humidity on pulmonary function were more with cold dry air inhalations than with cold humid, warm dry or warm humid air inhalations in patients with bronchial asthma.


[PDF]*
Print this article     Email this article
 Next article
 Previous article
 Table of Contents

 Similar in PUBMED
   Search Pubmed for
   Search in Google Scholar for
 Citation Manager
 Access Statistics
 Reader Comments
 Email Alert *
 Add to My List *
 * Requires registration (Free)
 

 Article Access Statistics
    Viewed361    
    Printed26    
    Emailed0    
    PDF Downloaded156    
    Comments [Add]    

Recommend this journal