|
KMID : 0378019830260120178
|
|
New Medical Journal
1983 Volume.26 No. 12 p.178 ~ p.182
|
|
|
The Effect of Tidal volume on Pulmonary Gas Exchange during Thoracotomy
|
|
|
|
|
Abstract
|
|
|
The distribution of both pulmonary blood flow and alveolar ventilation is abnormal duri4g thoracic anesthesia. Although adequate removal of carbon dioxide is almost always possible with controlled ventilation, satisfactory oxygenation is more difficult to achieve. The particular problem is frequently imposed by lateral position during thoracotomy.
For the purpose of determination of adequate tidal volume during mechanical ventilation. in lateral position, we studied three tidal volumes (8,10,15m1/kg) on the bases of arterial blood gases and AaDO2. In group of 15m1/kg of tidal volume, PaCO2 and PaO2 were decreased, but AaDO2 increased significantly.
This decrease of PaO2 and increase of AaDO2 were supposed to be related to shunt effect and redistribution of pulmonary blood flow to poorly ventilated upper lung.
|
|
|
KEYWORD
|
|
|
|
|
|
FullTexts / Linksout information
|
|
|
|
|
|
Listed journal information
|
|
|
|