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Phasic characteristics of inspiratory crackles of bacterial and atypical pneumonia.
- Source :
-
Postgraduate Medical Journal . Aug2008, Vol. 84 Issue 994, p432-436. 5p. 3 Charts. - Publication Year :
- 2008
-
Abstract
- Background: No known physical findings are available to differentiate between bacterial pneumonia (BP) and atypical pneumonia (AP) in patients with community-acquired pneumonia (CAP). Objective: To evaluate the possible differences in phasic characteristics of inspiratory crackles between BP and AP in patients with CAP. Methods: Retrospective chart reviews were conducted to obtain phasic characteristics of inspiratory crackles (early, early-to-mid, late and pan-inspiratory crackles) in AP and BP groups in a community teaching hospital in Japan (n = 183). Results: 100 patients with BP and 83 patients with AP were evaluated. Patients with BP were significantly more likely to present with pan-inspiratory crackles (49 (49.0) vs 5(6.0); p<0.0001), whereas patients with AP were more likely to present with late inspiratory crackles (28 (33.7) vs 9(9.0); p<0.0001) (mean (SD)). Among pneumonia patients with audible crackles, the sensitivity and specificity of pan-inspiratory crackles for BP were 83.1% and 85.7%, respectively, and the sensitivity and specificity of late inspiratory crackles for AP were 80.0% and 84.7%, respectively. Discussion: In patients with CAP and audible crackles, phasic characteristics of inspiratory crackles may be used to distinguish AP from BP. Prospective studies are needed to confirm these findings. [ABSTRACT FROM AUTHOR]
- Subjects :
- *PNEUMONIA
*VIRAL pneumonia
*LUNG diseases
*TEACHING hospitals
Subjects
Details
- Language :
- English
- ISSN :
- 00325473
- Volume :
- 84
- Issue :
- 994
- Database :
- Academic Search Index
- Journal :
- Postgraduate Medical Journal
- Publication Type :
- Academic Journal
- Accession number :
- 34777500
- Full Text :
- https://doi.org/10.1136/pgmj.2007.067389