Detection of impaired gas exchange using the 1-minute sit-to-stand test in patients with interstitial lung disease.
Respir Investig 2023;
61:186-189. [PMID:
36724582 DOI:
10.1016/j.resinv.2022.12.009]
[Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/18/2022] [Revised: 12/14/2022] [Accepted: 12/23/2022] [Indexed: 01/31/2023]
Abstract
BACKGROUND
Although pulmonary function tests (PFTs) are important in patients with interstitial lung disease (ILD), they cannot be easily performed in a primary healthcare setting. This study aimed to examine the usefulness of the difference between pulse oxygen saturation (SpO2) at rest and the lowest SpO2 during the 1-min sit-to-stand test (delta SpO2-1STST) for predicting pulmonary function impairment.
METHODS
We retrospectively reviewed 116 patients with ILD who underwent 1STST and PFTs.
RESULTS
The delta SpO2-1STST and diffusing capacity for carbon monoxide (DLco) strongly correlated (ρ = 0.70). The delta SpO2-1STST was effective in predicting impaired gas exchange (cut-off value, -4%; AUC, 0.86; sensitivity, 74%; specificity, 87%).
CONCLUSIONS
The Delta SpO2-1STST may be a reasonable tool for predicting abnormalities in PFTs.
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