Correlation of Peak Cough Flow Rate with Peak Expiratory Flow Rate In Patients With Chronic Respiratory Diseases
DOI:
https://doi.org/10.70284/njirm.v9i3.2346Keywords:
Chronic Respiratory disease, Peak Expiratory Flow Rate, Peak Cough Flow Rate.Abstract
Background & Objective: Chronic cough is a most common symptom of chronic respiratory disease. Peak expiratory flow rate (PEFR) is routinely used as a bed- side tool to evaluate the degree of airway obstruction in these patients. Whereas Peak cough flow rate (PCFR) a measure of cough strength is rarely used. There is no established data regarding any association between PEFR and PCFR. Hence the objective was to study the association between the two variables and compare PCFR and PEFR of respiratory patients with that of age matched controls. Method: 113 patients diagnosed with stable chronic respiratory diseases and presentation of cough/sputum production as a symptom were included. Patients with exacerbation, or any other recent surgery were excluded. 113 age and BMI matched healthy controls were recruited to obtain normative data. The evaluation of PEFR and PCFR was done by the Mini wright Peak flow meter. Result: A statistically significant positive correlation was found between PEFR and PCFR (r-0.718). Conclusion: The study concluded that there is a significant positive correlation between PEFR and PCFR and a significant reduction in PEFR and PCFR in patients than the matched controls. [N Shahane, Natl J Integr Res Med, 2018; 9(3):21-25]
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