PURPOSE: OUES has been available for over 10 years but has only recently been readily available in a small practice setting. We looked to see if OUES could help identify patients with poor aerobic capacity that may benefit from pulmonary rehabilitation.
METHODS: In a small pulmonary practice records of patients that underwent metabolic exercise testing were reviewed. OUES and aerobic capacity measured as VO2/ml/min. was divided into 2 groups using a cutoff value of 15 ml/kg/min. T-testing was used to analyze the data (group 1 n=21, group 2 n=12).
RESULTS: There was a significant difference in OUES in the group with low (1.19 ± 0.155 sem) versus adequate aerobic capacity (1.93 ± 0.144 sem) p=0.00072.
CONCLUSIONS: OUES which can be derived by a relatively easy sub-maximal metabolic exercise test may help identify patients with poor aerobic capacity who may benefit from pulmonary rehabilitation. More studies should be conducted with appropriate cutoffs to be determined in the future.
CLINICAL IMPLICATIONS: Sub-maximal exercise testing may be used to identify patients that may benefit from pulmonary rehabilitation. This may be used in the future to replace other criteria such as spirometric values (FEV1) which may not reflect the patients’ true functional status and are unlikely to change after pulmonary rehabilitation.
DISCLOSURE: The following authors have nothing to disclose: Mary Zaremba, Kristin Elliott, Alicia Redford, Nipurn Shah, Syed Ali, Sridhar Reddy
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