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- Title
EARLY DETECTION OF SMOKING INDUCED LUNG DAMAGE IN PATIENTS WITH NORMAL PULMONARY FUNCTION TESTS: EVALUATION WITH HIGH RESOLUTION COMPUTED TOMOGRAM (HRCT) CHEST.
- Authors
Bhat, Tariq; Yousuf, Qayoom; Wani, Abdul Ahad; Naik, Muzafar Ahmed; Robbani, Irfan; Naqash, Mubarik
- Abstract
Background: Spirometry is accepted universally to diagnose chronic obstructive pulmonary disease. However, many current and former smokers who do not meet the spirometric criteria for COPD may assume that they are disease free and may be having significant respiratory disease demonstrable by imaging. Study design & Objective: It was a Cross-sectional observational study. To evaluate the possibility of detecting early COPD/smoking induced lung damage in current and former smokers having normal spirometry, by using HRCT chest. Materials & Methods: Sixty-four patients either former or current smokers aged 40-70 years who had normal pulmonary function test were included in this study. The cases were subjected to detailed history, clinical examination including pulmonary function tests (PFT) and highresolution computed tomography (HRCT) chest. Results: Out of 64 cases 57 were current and 7 were former smokers. Around 64 % of smokers had one or more respiratory related symptoms. Around 12.5 % of smokers with normal PFT had significant emphysema on quantitative CT (QCT) measurements. Around 4.7 % smokers with normal PFT had significant air trapping on QCT. Almost 12.5 % of smokers had other CT chest findings other than emphysema & air trapping. There was a significant correlation between CT documented emphysema with age, pack years (> 35 pack years) & sputum production. Conclusion: Relying exclusively on pulmonary function tests to diagnose COPD/ smoking related lung disease may underestimate significant early smoking related lung diseases, hence it is imperative to supplement patient evaluation with HRCT for identifying early disease and thus motivating current smokers to quit smoking.
- Subjects
PULMONARY function tests; OBSTRUCTIVE lung diseases; SMOKING; LUNG diseases; LUNGS
- Publication
JK Practitioner, 2020, Vol 25, Issue 1-4, p6
- ISSN
0971-8834
- Publication type
Article