| ORIGINAL ARTICLE
|Year : 2007 | Volume
| Issue : 3 | Page : 108-112
Do bullae and emphysema increase risk of pneumothorax in silicosis?
Iraj Mohebbi1, Ebrahim Hassani2, Shaker Salarilak3, Abdul Rahman Bahrami4
1 Department of Occupational Medicine, Urmia Medical Sciences University, Urmia, Iran
2 Department of Anesthesiology, Urmia Medical Sciences University, Urmia, Iran
3 Department of Community Medicine, Urmia Medical Sciences University, Urmia, Iran
4 Department of Occupational Health, Hamadan Medical Sciences University, Hamadan, Iran
Background: The occurrence of occupational lung diseases is decreasing due to improvements in occupational health in recent years; however, silicosis and its complications remain important occupational health problems. We have studied the role of emphysema and bullae as predictive factors of secondary spontaneous pneumothorax in acute and accelerated silicosis. Materials and Methods : This study was carried out using questionnaire items on occupational history and conventional computed tomography of lungs. Differences between two groups (silicosis with and without secondary spontaneous pneumothorax) in terms of age, interval of exposure-diagnosis and therefore silica exposure duration were assessed by independent t -test. Fisher's exact test was used to determine the association between secondary spontaneous pneumothorax and both emphysema and bullae. Results: We found a significant association between secondary spontaneous pneumothorax and bullae in acute and accelerated silicosis. Conclusion: Pneumothorax in silicosis could be attributed to previous bullae.
Department of Occupational Medicine, Djahad Avenue, Urmia
Source of Support: None, Conflict of Interest: None
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