What is the Agreement Between 6MWD And CPET Performance in COPD?
Received Date: Jul 04, 2022 / Published Date: Jul 29, 2022
Abstract
Introduction: Chronic Obstructive Pulmonary Disease patients typically present breathlessness and reduced exercise capacity. Our study aimed to better understand the correlation between 6MWD and CPET performance.
Methods: We conducted an observational prospective study. Consecutive stable COPD patients referred to the Lung Function Laboratory were recruited.
Results: Our 116 patients were predominantly male (88%), very symptomatic (68% GOLD B or D) and nonexacerbators (69%). Most patients had severe or very severe airflow limitation (55%) - median FEV1 was 48% (IQ 38-68). Median DLCO was 58% (IQ 46-75). Median 6MWD was 480m (406-515) and median workload (CPET) was 64W (46-88) with peakVO2 15.7L/min/kg (13.6-18.1). Median ΔSpO2 was 5% (3-9%) in 6MWT and 2% (1-6) in CPET. FEV1 and DLCO were important predictors of exercise capacity and desaturation in CPET and 6MWT. The 6MWD correlated with CPET peak workload and peak VO2; 6MWD of 440m estimates reduced exercise capacity in CPET (VO2 <60%).
Conclusion: 6MWD can estimate CPET peakVO2.
Citation: Ladeira I, Oliveira P, Martins C, Ricardo Lima MD, Guimarães M (2022) What is the Agreement Between 6MWD And CPET Performance in COPD? J Card Pulm Rehabi 6: 169. Doi: 10.4172/jcpr.1000169
Copyright: © 2022 Ladeira I, et al. This is an open-access article distributed under the terms of the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited.
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