| Autor: |
Nakajima, Toshiaki, Ohdaira, Tetsuro, Satoh, Makoto, Kurashige, Kazuyuki, Yokota, Tatsuya, Suzuki, Eiichi, Kioi, Satoru, Arakawa, Masaaki |
| Jazyk: |
angličtina |
| Rok vydání: |
1998 |
| Předmět: |
|
| Zdroj: |
Acta medica et biologica. 46(3):81-87 |
| ISSN: |
0567-7734 |
| Popis: |
This study aims to elucidate the relationship between arterial plasma potassium concentration ([K^+]_a) and ventilation, and evaluate the effect of hyperoxia on the ventilation- [K^+]_a relationship during incremental exercise testing in patients with chronic obstructive pulmonary disease (COPD). We studied 16 male patients with COPD. Using a bicycle ergometer, each patient started to exercise with a work load of 25W, which was increased in steps of 5W in one minute intervals until the symptom-limited endpoint. The same trial with oxygen inhalation was also performed in 6 out of 16 patients. During the exercise testing in room air (n=16), [K^+]_a increased from the baseline (3.82 ± 0.18 mEq / L) to 4.62±0.33 mEq/L (p |
| Databáze: |
OpenAIRE |
| Externí odkaz: |
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