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Intravesical pressure IAP ivp measurement is considered to be the gold standard for assessment of intra-abdominal pressure IAP. This study evaluated a new minimally invasive IAP monitoring device CiMON against three other devices in a wide range of clinically relevant IAP and in different body positions in healthy pigs. Mean differences and the limits of agreement were calculated.
Simplicity, continuous monitoring, and the combination with a feeding tube should lead to further clinical studies, evaluating this new CiMON device. Intra-abdominal hypertension IAH and abdominal compartment syndrome ACS have significant morbidity and mortality [ 1 — 3 ]. The definitions of IAH and ACS are thus based on the determination of intra-abdominal pressure IAP , measured at end-expiration in the complete supine position after ensuring that abdominal muscle contractions are absent [ 4 ].
Several contraindications for bladder catheterization exist e. Moreover, bladder measurements are still mostly intermittent in nature, being labour intensive and possibly preventing timely recognition of significant changes in IAP [ 5 ]. Some fully automated continuous monitoring techniques have been described and validated in vitro and in animal laboratories [ 6 — 8 ]. Several of these more invasive techniques perform very well in laboratory settings but are less feasible in clinical scenarios.
Transgastric devices might be a reasonable minimally invasive alternative for continuous IAP monitoring [ 9 — 13 ]. Recently, a new transgastric device became available that uses an air-filled balloon positioned on a nasogastric feeding tube [ 14 ]. The aim of the present study was to evaluate this new device against three other IAP measurement devices direct intraperitoneal, bladder, and gastric in a wide range of clinically relevant IAP and in different body positions with regard to precision and applicability in a future human investigation.
