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Year : 2013  |  Volume : 3  |  Issue : 1  |  Page : 36-39

A recommended method in order to interpret chest x-rays for diagnosing small size pneumothorax

1 Trauma Research Center; Department of Emergency Medicine, Faculty of Medicine, Baqiyatallah University of Medical Sciences, Tehran, I. R. Iran
2 Chemical Injuries Research Center, Baqiyatallah University of Medical Sciences, Tehran, I. R. Iran

Correspondence Address:
Amin Saburi
Chemical Injuries Research Center, Baqiyatallah University of Medical Sciences, Mollasadra St, Vanak Sq, Tehran
I. R. Iran
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Source of Support: None, Conflict of Interest: None

DOI: 10.4103/2229-5151.109417

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Background: Pneumothorax can be a both progressive and life threatening disorder. In this survey we evaluated the diagnostic accuracy of a recommended method for the interpretation of chest X-Rays (CXRs) compared to the common method in diagnosis of iatrogenic Pneumothorax in an emergency department. Materials and Methods: We conducted a study on 100 CXRs (31 with the diagnosis of small size pneumothorax and 69 normal) of patients who have undergone the upper central venous catheterization. CXRs were interpreted by 5 Emergency Specialists (ESs) and 5 general practitioners (GPs) separately using the conventional and recommended method. Recommended method included a 90 degree rotation against the side of chateterization in addition to using a yellow shield as the background color. Presence of pneumothorax on the CXR was confirmed by a radiologist. Results: 64.5% of the CXRs with pneumothorax were correctly diagnosed by GPs and 87.7% by ESs with reutine method and 83.2% and 97.4% by recommended method, respectively (P.value<0.001). 96.8% out of all CXRs were correctly diagnosed by GPs and 99.4% by ESs by conventional method and 97.9% by GP and 99.7% by ES was correctly diagnosed using recommended method(P.value<0.001). None of the underlying variables including sex, age, underlying diseases, the side of intervention did not affect on the diagnostic accuracy in either groups (P.value>0.05). Conclusion: A significant raise was obtained in the diagnostic accuracy of CXR using the recommended method. This study can be a preliminary study to conduct further investigations in order to enhance the diagnostic accuracy of CXRs.

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