A Prospective Study On The Correlation Between Six Minute Walk Test And Forced Expiratory Volume At One Second In Chronic Obstructive Pulmonary Disease Patients
DOI:
https://doi.org/10.48047/Keywords:
Six minute walk test, Chronic obstructive pulmonary disease (COPD), forced expiratory volume in 1second (FEV1), 6-min walk distance (6MWD), Spirometry, pulse oximeter, GOLD guidelines, Burden of Obstructive Lung Disease (BOLD)Abstract
COPD is a major cause of morbidity and mortality around the world. At present COPD is diagnosed
and severity is assessed by spirometry base on FEV1 / FEC ratio and FEV1 percentage. In order to
substitute spirometry a prospective cross sectional study is conducted to find the correlation between
6MWD and FEV1 for grading of COPD severity as per GOLD criteria. Materials and methods used
are, a spirometer, pulse oximeter, bp apparatus, timer and 30meter hall was used to conduct the study
from 70 patients diagnosed as COPD according to GOLD criteria. Study was conducted at chest
hospital, Calicut, India from 2012 to 2014. Correlation between 6MWD and FEV1 was calculated
using Spearmans Rank correlation coefficient. The results obtained are that, there was no correlation
between six minute walk distance and FEV1 in COPD patients. There was significant statistical
association between FEV1 and SpO2, i.e. as severity of airflow obstruction based on FEV1 values
increases, chances of de-saturation also increases. And it is concluded that, there was no correlation
between six minute walk distance and FEV1 in COPD patients.
