Even a single breath counts
Journal Title: IOSR Journal of Dental and Medical Sciences (IOSR-JDMS) - Year 2017, Vol 16, Issue 9
Abstract
Study objective: To assess the correlation of single breath count and breath holding time with standard measures of pulmonary function testing, namely FEV1, FVC, FEV1/FVC ratio and PEFR. Materials and methods: Design: Prospective observational study. Setting: Institute of Thoracic Medicine, Chetpet, between January 2010 -May 2010. Sample size: 200 cases, which included patients greater than 12 years of age, with symptoms and signs of obstructive airway disease referred to Pulmonary function testing lab for assessment. Spirometry (Easy pro one, NDD) was done on all the study participants and the following variables were measured and recorded, FEV1, FVC, FEV1/FVC ratio and PEF. Then single breath count was done by asking the patient to take a deep breath and count as far as possible in their normal speaking voice without taking another breath. Counting was timed to a metronome set at 2 counts per second. Breath holding time was done by asking the patient to hold their breath after an effort inhalation till the breaking point. The time duration in seconds was measured and correlated with, FVC, FEV1/FVC ratio and PEFR. Conclusion: Single breath count and breath holding time correlated well with FEV1 and FVC.In resource poor settings SBC & BHT can be a reasonable alternative to spirometry.
Authors and Affiliations
Arul Kumaran Palaniyandi, Murugan Natarajan, Ammaiyappan Chockalingam, Rajendran Karthick, Chitrakumar A
Keywords
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- EP ID EP255466
- DOI 10.9790/0853-1609017072
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