| Abstract Number: 73 |
| Title: INTRA-ABDOMINAL PRESSURE MONITORING IN INTENSIVE CARE |
| Authors: M. Vizcaychipi¹, M.M Laban¹, C. Sekhri¹, V. Ratnam², S. Wallece², M. Bird², C. Schmulian¹ |
| Abstract: Introduction: Intra-abdominal pressure (IAP) is an important parameter to be monitored in intensive care because its value relates to organ failure¹ and its management may affect the outcome of critically ill patients.
Intravesical pressure (IVP) is an indirect method of estimating IAP². The pressure in the bladder increases linearly within a range of 50 to 400ml of infusion and this is very important so as to obtain reproducible and comparable data when subsequent measurements are performed³.
Objective: The aim was to assess the accuracy of intravesical pressure (IVP) as a surrogate for IAP.
Design: A prospective sequential study comparing different volume with a close system and a column of fluid in intensive care patients in supine position.
Setting: Intensive care unit at two district general hospitals in the UK. Ethics Committee approval and patient’s written informed consent was obtained.
Technique: The patients had a urinary catheter in place then this was connected using sterile technique to two-way stopcocks serially to a disposable pressure transducer. A standard intravenous infusion set was connected to 1L normal saline and attached to one stopcock and a 60ml Luer lock syringe was attached to the second stopcock. A 20-G needle was inserted through the catheter sampling membrane and to the first stopcock via 84 inch arterial pressure tubing. The system was flushed and the pressure transducer zeroed at the level of the symphysis pubis with the patient in supine position.
IVP was measured by two techniques: A) a ‘closed ‘system which consisted of clamping the urinary drainage tubing immediately distal to the catheter and injection of sterile saline 50ml, 100ml, 200ml and 300ml; and the pressure measured B) an ‘open’ system using a vertical column of fluid directly connected to the catheter for pressure measurement
Measurements and results: IVP measurement was first recorded after two minutes of equilibration with each volume for the closed system.
Once the clamp was released the ‘open’ IVP was measured.
Statistical analysis will be ready by 28-06-04
Discussion
According to final results we will write our discussion (28-06-04)
Acknowledgments
We wish to express our gratitude to Dr Anita Holdcroft who kindly corrected this abstract
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