Abstract
Objective
To investigate the effect of different reference transducer positions on intra-abdominal pressure (IAP) measurement. Three reference levels were studied: the symphysis pubis; the phlebostatic axis; and the midaxillary line at the level of the iliac crest.
Design
Prospective cohort study.
Setting
The intensive care units of participating hospitals
Patients and participants
One hundred thirty-two critically ill patients at risk for intra-abdominal hypertension (IAH).
Interventions
In each patient, three sets of IAP measurements were obtained in the supine position, using the different reference levels. The IAP measurements obtained at the different reference levels were compared using a paired t-test and Bland–Altman statistics were calculated.
Measurements and results
IAPphlebostatic (9.9 ± 4.67 mmHg) and IAPpubis (8.4 ± 4.60 mmHg) were significantly lower that IAPmidax (12.2 ± 4.66 mmHg; p < 0.0001 for both comparisons). The bias between the IAPmidax and IAPpubis was 3.8 mmHg (95% CI 3.5–4.1) and 2.3 mmHg (95% CI 1.9–2.6) between the IAPmidax and the IAPphlebostatic. The precision was 3.03 and 3.40, respectively.
Conclusions
In the supine position, IAPmidax is higher than both IAPphlebostatic and IAPpubis, differences found to be clinically significant; therefore, the symphysis pubis or phlebostatic axis reference lines are not interchangeable with the midaxillary level.
References
Malbrain ML, Chiumello D, Pelosi P, Bihari D, Innes R, Ranieri VM, del Turco M, Wilmer A, Brienza N, Malcangi V, Cohen J, Japiassu A, De Keulenaer BL, Daelemans R, Jacquet L, Laterre PF, Frank G, de Souza P, Cesana B, Gattinoni L (2005) Incidence and prognosis of intraabdominal hypertension in a mixed population of critically ill patients: a multiple-center epidemiological study. Crit Care Med 33:315–322
Kirkpatrick AW, Brenneman FD, McLean RF, Rapanos T, Boulanger BR (2000) Is clinical examination an accurate indicator of raised intra-abdominal pressure in critically injured patients? Can J Surg 43:207–211
Sugrue M, Bauman A, Jones F, Bishop G, Flabouris A, Parr M, Stewart A, Hillman K, Deane SA (2002) Clinical examination is an inaccurate predictor of intraabdominal pressure. World J Surg 26:1428–1431
De Waele JJ, De laet I, Malbrain ML (2007) Rational intraabdominal pressure monitoring: How to do it? Acta Clin Belg Suppl 16–25
Kirkpatrick AW, Balogh Z, Ball CG, Ahmed N, Chun R, McBeth P, Kirby A, Zygun DA (2006) The secondary abdominal compartment syndrome: Iatrogenic or unavoidable? J Am Coll Surg 202:668–679
Kirkpatrick AW, De Waele JJ, Ball CG, Ranson K, Widder S, Laupland KB (2007) The secondary and recurrent abdominal compartment syndrome. Acta Clin Belg 1(Suppl):60–65
Malbrain ML, Cheatham ML, Kirkpatrick A, Sugrue M, Parr M, De Waele J, Balogh Z, Leppaniemi A, Olvera C, Ivatury R, D'Amours S, Wendon J, Hillman K, Johansson K, Kolkman K, Wilmer A (2006) Results from the International Conference of Experts on Intra-abdominal Hypertension and Abdominal Compartment Syndrome. I. Definitions. Intensive Care Med 32:1722–1732
Bland JM, Altman DG (1986) Statistical methods for assessing agreement between two methods of clinical measurement. Lancet 1:307–310
Malbrain ML, De laet I, Cheatham M (2007) Consensus conference definitions and recommendations on intra-abdominal hypertension (IAH) and the abdominal compartment syndrome (ACS): the long road to the final publications, how did we get there? Acta Clin Belg 1(Suppl):44–59
Malbrain ML (2004) Different techniques to measure intra-abdominal pressure (IAP): time for a critical re-appraisal. Intensive Care Med 30:357–371
De Waele J, Pletinckx P, Blot S, Hoste E (2006) Saline volume in transvesical intra-abdominal pressure measurement: enough is enough. Intensive Care Med 32:455–459
McBeth PB, Zygun DA, Widder S, Cheatham M, Zengerink I, Glowa J, Kirkpatrick AW (2007) Effect of patient positioning on intra-abdominal pressure monitoring. Am J Surg 193:644–647
Darovic GO, Vanriper S, Vanriper J (1995) Fluid-filled monitoring systems. In: Darovic GO (ed) Hemodynamic monitoring. Saunders, Philadelphia, pp 149–175
Acknowledgements
This work was supported by an unrestricted grant from Wolfe-Tory Medical.
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This study was performed on behalf of the Clinical Trials Working Group of the World Society for Abdominal Compartment Syndrome. It was presented at the 2007 World Congress on the Abdominal Compartment Syndrome, Antwerp, Belgium.
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De Waele, J.J., De laet, I., De Keulenaer, B. et al. The effect of different reference transducer positions on intra-abdominal pressure measurement: a multicenter analysis. Intensive Care Med 34, 1299–1303 (2008). https://doi.org/10.1007/s00134-008-1098-4
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DOI: https://doi.org/10.1007/s00134-008-1098-4