| タイトル | Effect of the Trendelenburg position on the distribution of arterial air emboli in dogs |
| 著者（英） | Laine, Glen A.; Leiman, Basil C.; Kurusz, Mark; Warters, Dave; Butler, Bruce D. |
| 著者所属（英） | Texas Univ.|Texas Univ. |
| 発行日 | 1988-02-01 |
| 言語 | eng |
| 内容記述 | The effect of Trendelenburg position (TP) on the distribution of arterial air emboli in dogs was examined in a two-part investigation. In the first part, the effects of the bubble size and the vessel angle on the bubble velocity and the direction of flow were investigated in vitro, using a simulated carotid artery preparation. It was found that larger bubbles increased in velocity in the same direction as the blood flow at 0-, 10-, and 30-deg vessel angles, and decreased when the vessel was positioned at 90 deg. Smaller bubbles did not change velocity from 0 to 30 deg, but acted to increase the velocity, in the same direction as the flood flow, at 90 deg. The second series of experiments examined the effect of 0 to 30 deg TP on carotid-artery distribution of gas bubbles injected into the left ventricle or ascending aorta of anesthetized dogs. It was found that, regardless of the degree of the TP, the bubbles passed into the carotid artery simultaneously with the passage into the abdominal aorta. It is concluded that the TP does not prevent arterial bubbles from reaching the brain. |
| NASA分類 | LIFE SCIENCES (GENERAL) |
| レポートNO | 89A14521 |
| 権利 | Copyright |
| URI | https://repository.exst.jaxa.jp/dspace/handle/a-is/367083 |
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