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intrapulmonary shunt

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intrapulmonary shunt
Etymology: L, intra + pulmoneus, relating to the lung
(in respiratory therapy) a condition in which a region of the lungs is perfused with little or no ventilation. It is indicated by a low ratio of QS/QT, in which QS represents the difference between end capillary oxygen content and mixed venous oxygen content and QT represents cardiac output. The condition may occur in atelectasis, pneumonia, pulmonary edema, and adult respiratory distress syndrome.


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The intrapulmonary shunt ((Qs/Qt: (Cc02-CaO2)/(CcO2-CvO2)) was calculated 3 times; at the beginning of the operation and 1 and 24 hours after the operation.
This spontaneous breathing aspect has the theoretical potential to expand ventilation-perfusion matching as well as decrease intrapulmonary shunt.
The underlying mechanism mostly involves a right-to-left intracardiac or intrapulmonary shunt.
 
 
 
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