Authors: Aleemuddin MM., Raheem Fatima, Mohsin, Ashfaq Hasan
Introduction: In COPD excess expectoration secondary to tracheobronchial secretions contributes to symptoms, airflow obstruction and is diagnostic criterion. It also causes increased mortality, risk of hospitalizations and accelerated decline in FEV1. N-acetylcysteine (NAC) helps in liquefying mucus and DNA (via disruption of disulfide bonds) and has antioxidant effects. Aims: Evaluate add-on effect of NAC on clinical-physiological parameters in COPD patients treated according to GOLD guidelines. Material and Methods: Single labeled, randomized, parallel group prospective Observational study. In 120 stable COPD patients Modified medical research council (MMRC) dyspnoea score, COPD Assessment test (CAT score), number of exacerbations and hospitalizations in the last year were recorded and were randomized into 2 groups of 60 each. Group A received NAC 600mg twice daily along with standard treatment. Group B received standard treatment only. Mean and Standard Deviation was compared between groups using unpaired t-test. After 1 year, changes in above parameters were reassessed. Statistical Analysis: Unpaired t-test and chi square test were used. Statistical significance was set at Results: MMRC score reduced from 3.37 study group) to 2.91, difference being -0.46, and in control from 3.37 to 1.18, difference of -0.22 and p value of p
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