Can abdominal perimeter be used as an accurate estimation of intra-abdominal pressure?

Intra-abdominal pressure (IAP) is an important parameter and prognostic indicator of the patient's underlying physiologic status [1]. Correct IAP measurement therefore is crucial. Most of the direct and indirect techniques are not free of risks and require some time and skills. This study will look at the possibility of using the abdominal perimeter (AP) as a quick estimation for IAP.