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Contributions of residual hypoxemia to exercise hyperventilation in Fontan patients
https://doi.org/10.18999/nagjms.82.2.281
https://doi.org/10.18999/nagjms.82.2.2818be57320-5428-4106-a043-9322e9ad1a18
| 名前 / ファイル | ライセンス | アクション |
|---|---|---|
12_Okamura.pdf (1.3 MB)
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| Item type | 紀要論文 / Departmental Bulletin Paper(1) | |||||
|---|---|---|---|---|---|---|
| 公開日 | 2020-06-01 | |||||
| タイトル | ||||||
| タイトル | Contributions of residual hypoxemia to exercise hyperventilation in Fontan patients | |||||
| 言語 | en | |||||
| 著者 |
Okamura, Yukiko
× Okamura, Yukiko× Kito, Machiko× Yasuda, Kazushi× Baba, Reizo |
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| アクセス権 | ||||||
| アクセス権 | open access | |||||
| アクセス権URI | http://purl.org/coar/access_right/c_abf2 | |||||
| 権利 | ||||||
| 言語 | en | |||||
| 権利情報Resource | http://creativecommons.org/licenses/by-nc-nd/4.0/ | |||||
| 権利情報 | Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International | |||||
| キーワード | ||||||
| 主題Scheme | Other | |||||
| 主題 | Fontan | |||||
| キーワード | ||||||
| 主題Scheme | Other | |||||
| 主題 | exercise tolerance | |||||
| キーワード | ||||||
| 主題Scheme | Other | |||||
| 主題 | oxygen uptake efficiency slope | |||||
| キーワード | ||||||
| 主題Scheme | Other | |||||
| 主題 | maximal oxygen uptake | |||||
| キーワード | ||||||
| 主題Scheme | Other | |||||
| 主題 | ventilatory response | |||||
| 抄録 | ||||||
| 内容記述タイプ | Abstract | |||||
| 内容記述 | It is unsettled whether increased exercise ventilation in Fontan subjects is due to increased pulmonary dead space or augmented ventilatory drive. Twenty-six Fontan patients underwent symptom-limited treadmill cardiopulmonary exercise testing. Two groups of age- and sex- matched subjects served as controls: the biventricularly repaired (Bi, n = 18), and the “true” control (C, n = 29) groups. Peak oxygen uptake (VO2peak) was not different among groups (41.0 +/– 8.4 ml/min/kg, 43.5 +/– 6.6 ml/min/kg, and 45.9 +/– 11.6 ml/min/kg for Fontan, Bi, and C groups, respectively, p = 0.16). Fontan subjects, however, showed steeper alveolar ventilation/carbon-dioxide (VA/VCO2) regression slope (35.5 +/– 5.3, 28.7 +/– 3.8, and 29.5 +/– 3.0 l/ml, for Fontan, Bi, and C groups, respectively, p<0.0001), and lower end-expiratory carbon-dioxide fraction (FetCO2VAT) at ventilatory threshold (VAT) (4.4 +/– 0.5%, 5.5 +/– 0.5%, and 5.5 +/– 0.4%, for Fontan, Bi, and C groups, respectively, p<0.001). The dead-space ventilation fraction at VAT was similar among groups (0.33 +/– 0.06, 0.33 +/– 0.04, 0.35 +/– 0.05 for Fontan, Bi, and C groups, respectively, p = 0.54). In Fontan subjects, arterial oxygen saturation at rest (SaO2rest) was correlated with VA/VCO2 regression slope (r = –0.41, p = 0.04) and with FetCO2VAT (p = –0.53, p<0.01). We conclude that Fontan patients show exercise hyperventilation due to augmented central and/or peripheral ventilatory drive, which is further augmented by residual hypoxemia. | |||||
| 言語 | en | |||||
| 出版者 | ||||||
| 出版者 | Nagoya University Graduate School of Medicine, School of Medicine | |||||
| 言語 | en | |||||
| 言語 | ||||||
| 言語 | eng | |||||
| 資源タイプ | ||||||
| 資源タイプ識別子 | http://purl.org/coar/resource_type/c_6501 | |||||
| 資源タイプ | departmental bulletin paper | |||||
| 出版タイプ | ||||||
| 出版タイプ | VoR | |||||
| 出版タイプResource | http://purl.org/coar/version/c_970fb48d4fbd8a85 | |||||
| ID登録 | ||||||
| ID登録 | 10.18999/nagjms.82.2.281 | |||||
| ID登録タイプ | JaLC | |||||
| 関連情報 | ||||||
| 関連タイプ | isVersionOf | |||||
| 識別子タイプ | URI | |||||
| 関連識別子 | http://www.med.nagoya-u.ac.jp/medlib/nagoya_j_med_sci/822.html | |||||
| ISSN（print） | ||||||
| 収録物識別子タイプ | PISSN | |||||
| 収録物識別子 | 0027-7622 | |||||
| ISSN（Online） | ||||||
| 収録物識別子タイプ | EISSN | |||||
| 収録物識別子 | 2186-3326 | |||||
| 書誌情報 |
en : Nagoya Journal of Medical Science 巻 82, 号 2, p. 281-289, 発行日 2020-05 |
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| 著者版フラグ | ||||||
| 値 | publisher | |||||
