Physiologic effect | Clinical result | |
Improved configuration between lung and thorax | ||
Heart is dependent | More homogeneous Ppl gradient in ventrodorsal and cephalocaudal planes | Improved ventilation distribution |
Smaller volume of dependent lung | Increased FRC (↓ shunt) | |
Abdomen is unsupported* | ||
Secretion mobilization | Improved bronchial drainage | Improved ventilation |
Improved aerosol delivery | Improved effect of aerosolized meds | Improved ventilation |
More homogeneous perfusion | Less dependent perfusion | Improved V/Q matching (↓ shunt) |
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