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Table 4 Recommended parameters to be considered/reported in prone ventilation outcome studies

From: Clinical review: Intra-abdominal hypertension: does it influence the physiology of prone ventilation?

Intra-abdominal pressure (IAP) (including measurement technique description, zero reference point, priming volume, IAP minimum, and IAP maximum)
Body mass index
Extravascular lung water index
Fluid balance
Body anthropomorphic data
Presence or absence of ascites
Intrathoracic pressure (ideally esophageal pressure and transdiaphragmatic pressure gradient)
Chest wall compliance (as a benefit of measuring intrathoracic pressure)
Etiology of acute lung injury/acute respiratory distress syndrome
Duration of prone ventilation
Technique of prone ventilation
Use or nonuse of thoracopelvic supports and exact position of supports
Total respiratory compliance
Lung compliance
Lower inflection point
Upper inflection point