Effect of Automated Oxygen Titration during Walking on Dyspnea and Endurance in Chronic Hypoxemic Patients with COPD : A Randomized Crossover Trial
The need for oxygen increases with activity in patients with COPD and on long-term oxygen treatment (LTOT), leading to periods of hypoxemia, which may influence the patient's performance. This study aimed to evaluate the effect of automated oxygen titration compared to usual fixed-dose oxygen treatment during walking on dyspnea and endurance in patients with COPD and on LTOT. In a double-blinded randomised crossover trial, 33 patients were assigned to use either automated oxygen titration or the usual fixed-dose in a random order in two walking tests. A closed-loop device, O2matic delivered a variable oxygen dose set with a target saturation of 90-94%. The patients had a home oxygen flow of (mean ± SD) 1.6 ± 0.9 L/min. At the last corresponding isotime in the endurance shuttle walk test, the patients reported dyspnea equal to median (IQR) 4 (3-6) when using automated oxygen titration and 8 (5-9) when using fixed doses, p < 0.001. The patients walked 10.9 (6.5-14.9) min with automated oxygen compared to 5.5 (3.3-7.9) min with fixed-dose, p < 0.001. Walking with automated oxygen titration had a statistically significant and clinically important effect on dyspnea. Furthermore, the patients walked for a 98% longer time when hypoxemia was reduced with a more well-matched, personalised oxygen treatment.
| Medienart: |
E-Artikel |
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| Erscheinungsjahr: |
2021 |
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| Erschienen: |
2021 |
| Enthalten in: |
Zur Gesamtaufnahme - volume:10 |
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| Enthalten in: |
Journal of clinical medicine - 10(2021), 21 vom: 20. Okt. |
| Sprache: |
Englisch |
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| Beteiligte Personen: |
Kofod, Linette Marie [VerfasserIn] |
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| Links: |
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| Themen: |
Exercise |
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| Anmerkungen: |
Date Revised 18.11.2021 published: Electronic Citation Status PubMed-not-MEDLINE |
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| doi: |
10.3390/jcm10214820 |
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| funding: |
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| Förderinstitution / Projekttitel: |
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| PPN (Katalog-ID): |
NLM333061608 |
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| 520 | |a The need for oxygen increases with activity in patients with COPD and on long-term oxygen treatment (LTOT), leading to periods of hypoxemia, which may influence the patient's performance. This study aimed to evaluate the effect of automated oxygen titration compared to usual fixed-dose oxygen treatment during walking on dyspnea and endurance in patients with COPD and on LTOT. In a double-blinded randomised crossover trial, 33 patients were assigned to use either automated oxygen titration or the usual fixed-dose in a random order in two walking tests. A closed-loop device, O2matic delivered a variable oxygen dose set with a target saturation of 90-94%. The patients had a home oxygen flow of (mean ± SD) 1.6 ± 0.9 L/min. At the last corresponding isotime in the endurance shuttle walk test, the patients reported dyspnea equal to median (IQR) 4 (3-6) when using automated oxygen titration and 8 (5-9) when using fixed doses, p < 0.001. The patients walked 10.9 (6.5-14.9) min with automated oxygen compared to 5.5 (3.3-7.9) min with fixed-dose, p < 0.001. Walking with automated oxygen titration had a statistically significant and clinically important effect on dyspnea. Furthermore, the patients walked for a 98% longer time when hypoxemia was reduced with a more well-matched, personalised oxygen treatment | ||
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| 700 | 1 | |a Brocki, Barbara Cristina |e verfasserin |4 aut | |
| 700 | 1 | |a Ringbæk, Thomas |e verfasserin |4 aut | |
| 700 | 1 | |a Hansen, Ejvind Frausing |e verfasserin |4 aut | |
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