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'Walking distance' test an accurate indicator of disease severity in patients with COPD
Date:5/15/2011

e data confirm the power of the 6MWD to identify subsets of the COPD population at higher risk of exacerbation-related hospitalization or death.

"The ability to group COPD patients according to their functional status disease severity should enable healthcare providers to better tailor therapy for their patients and optimize use of medical resources," he added. "Patient grouping is also useful for those designing interventional studies in COPD; for example, if the aim of an intervention were to reduce the rate of exacerbation related admission, then a study can be designed by including primarily patients at higher risk of that outcome."

Dr. Spruit also noted that the 6MWD test offers benefits over a more traditional test of COPD disease severity, the FEV1 (forced expiratory volume in the first second) which measures a patient's ability to forcefully exhale air in one second. "The FEV1 has limitations as a marker of disease severity in COPD because it fails to capture systemic manifestations of the disease," he said. "This study was designed to determine if the 6MWD could be an additional measure of disease severity, and the results confirmed that it can."


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Contact: Keely Savoie
ksavoie@thoracic.org
212-315-8620
American Thoracic Society
Source:Eurekalert

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