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Influence of Body Positions on Indirect Measurement of Intra-abdominal Pressure via Bladder

Zhong Wei-lian

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Abstract

Objective To observe the influence of patients' body positions on indirect measurement of intra-abdominal pressure(IAP) via the bladder.Methods From May 2011 to January 2012,indirect measurement of intra-abdominal pressure of 12 patients in ICU was performed 72 times via the bladder.IAP changes were recorded in supine position,15° and 30° head-up tilt positions respectively.Results Compared with IAP values in supine position,IAP values in 15°,30°head-up tilt positions increased(1.94±0.49) and(5.02±0.88) mmHg respectively,which were of significant difference(P0.01).Increased IAP values were positively correlated with bed elevated positions(r=0.87,P0.01).Conclusion The elevation of body position results in the increasing of IAP values.The measurement of IAP values in supine position may underestimate the true IAP values of patients in bed elevated.

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Objective To observe the influence of patients' body positions on indirect measurement of intra-abdominal pressure(IAP) via the bladder.Methods From May 2011 to January 2012,indirect measurement of intra-abdominal pressure of 12 patients in ICU was performed 72 times via the bladder.IAP changes were recorded in supine position,15° and 30° head-up tilt positions respectively.Results Compared with IAP values in supine position,IAP values in 15°,30°head-up tilt positions increased(1.94±0.49) and(5.02±0.88) mmHg respectively,which were of significant difference(P0.01).Increased IAP values were positively correlated with bed elevated positions(r=0.87,P0.01).Conclusion The elevation of body position results in the increasing of IAP values.The measurement of IAP values in supine position may underestimate the true IAP values of patients in bed elevated.

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Available abstract

Objective To observe the influence of patients' body positions on indirect measurement of intra-abdominal pressure(IAP) via the bladder.Methods From May 2011 to January 2012,indirect measurement of intra-abdominal pressure of 12 patients in ICU was performed 72 times via the bladder.IAP changes were recorded in supine position,15° and 30° head-up tilt positions respectively.Results Compared with IAP values in supine position,IAP values in 15°,30°head-up tilt positions increased(1.94±0.49) and(5.02±0.88) mmHg respectively,which were of significant difference(P0.01).Increased IAP values were positively correlated with bed elevated positions(r=0.87,P0.01).Conclusion The elevation of body position results in the increasing of IAP values.The measurement of IAP values in supine position may underestimate the true IAP values of patients in bed elevated.

Key concepts: Supine position, Medicine, Body position, Tilt (camera), Lower body, Body posture, Head-Down Tilt, Urology

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