Quantitative Assessment of Cross-sectional Area of Small Pulmonary Vessels in Chronic Obstructive Pulmonary Disease Using Inspiratory and Expiratory MDCT

CHEST Journal ◽  
2011 ◽  
Vol 140 (4) ◽  
pp. 545A
Author(s):  
Yukiko Matsauura ◽  
Naoko Kawata ◽  
Toshihiko Sugiura ◽  
Noriyuki Yanagawa ◽  
Koichiro Tatsumi
Keyword(s):  
Chronic Obstructive Pulmonary Disease ◽  
Pulmonary Disease ◽  
Quantitative Assessment ◽  
Cross Sectional Area ◽  
Chronic Obstructive ◽  
Sectional Area ◽  
Cross Sectional ◽  
Obstructive Pulmonary Disease ◽  
Pulmonary Vessels

scholarly journals Is the 1-Minute Sit-To-Stand Test a Good Tool to Evaluate Exertional Oxygen Desaturation in Chronic Obstructive Pulmonary Disease?

Diagnostics ◽  
2021 ◽  
Vol 11 (2) ◽  
pp. 159
Author(s):  
Ana L. Fernandes ◽  
Inês Neves ◽  
Graciete Luís ◽  
Zita Camilo ◽  
Bruno Cabrita ◽  
...  
Keyword(s):  
Chronic Obstructive Pulmonary Disease ◽  
Pulmonary Disease ◽  
Intraclass Correlation ◽  
Oxygen Desaturation ◽  
Walking Distance ◽  
Chronic Obstructive ◽  
Cross Sectional ◽  
Obstructive Pulmonary Disease ◽  
Stand Test ◽  
Sit To Stand

Background: Chronic obstructive pulmonary disease (COPD) is frequently associated with exertional oxygen desaturation, which may be evaluated using the 6-minute walking test (6MWT). However, it is a time-consuming test. The 1-minute sit-to-stand test (1STST) is a simpler test, already used to evaluate the functional status. The aim of this study was to compare the 1STST to the 6MWT in the evaluation of exertional desaturation. Methods: This was a cross-sectional study including 30 stable COPD patients who performed the 6MWT and 1STST on the same day. Six-minute walking distance (6MWD), number of 1STST repetitions (1STSTr), and cardiorespiratory parameters were recorded. Results: A significant correlation was found between the 6MWD and the number of 1STSTr (r = 0.54; p = 0.002). The minimum oxygen saturation (SpO2) in both tests showed a good agreement (intraclass correlation coefficient (ICC) 0.81) and correlated strongly (r = 0.84; p < 0.001). Regarding oxygen desaturation, the total agreement between the tests was 73.3% with a fair Cohen’s kappa (κ = 0.38; p = 0.018), and 93.33% of observations were within the limits of agreement for both tests in the Bland–Altman analysis. Conclusion: The 1STST seems to be a capable tool of detecting exercise-induced oxygen desaturation in COPD. Because it is a less time- and resources-consuming test, it may be applied during the outpatient clinic consultation to regularly evaluate the exercise capacity and exertional desaturation in COPD.

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