| Popis: |
Background The gold standard to measure intra-abdominal pressure (IAP) is via intra-vesical measurement via the urinary bladder. However, this technique is restricted in ambulatory settings because of the risk of iatrogenic urinary tract infections. Rectal IAP measurements (IAPrect) may overcome these limitations, but requires validation. This pilot study aims to validate the IAPrect technique against standard intra-vesical IAP measurements (IAPves).Methods IAPrect using an air-filled balloon catheter and IAPves using Foley Manometer Low Volume were measured simultaneously in sedated and ventilated patients. Measurements were performed twice in different positions (supine and 45° elevated head of bed) and with an external abdominal velcro belt. ResultsSixteen patients were included. Seven were not eligible for analysis due to unreliable IAPrect values. IAPrect was significantly higher than IAPves for all positions (pves and IAPrect was not significant in any position (p≥0.25, bias 7.2mmHg, LOA -3.5 to 18mmHg). Repeatability of IAPrect was not reliable (r=0.539, p=0.315). For both techniques, measurements with the external abdominal velcro belt were significantly higher compared to those without (prect has important shortcomings making IAP estimation using a rectal catheter unfeasible because the numbers cannot be trusted nor validated. |
