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Validation of the Pliance X System in measuring interface pressure generated by pressure garment
Candy H Y Lai1, Cecilia W P Li-Tsang
1Department of Rehabilitation Sciences, The Hong Kong Polytechnic University, Hung Hom, HKSAR, China.
Introduction:
Pressure monitoring is crucial for effective pressure therapy. Precise and reliable interface pressure measurement system, however, remains unavailable in current practice.
Methodology:
This is a validation study on the application of a recently developed device, the Pliance X System, for static interface pressure measurement. Sensor properties were evaluated through series of laboratory tests in the first phase of the study. Phase II was a clinical study using the Pliance X system to differentiate the loading generated on the patients' scars through additional inserts and pressure garment.
Results:
Results showed high test-retest and inter-rater reliability (ICC > or = 0.995) with good linearity (adjusted R-square=0.997) by measuring standard weights. The maximum deviation between the measurement generated by the sensor and the sphygmomanometer cuff was +/-1.451 mmHg. Results in the clinical trial revealed its discriminant ability in distinguishing different levels of pressure loading on patients with scars (p<0.01).
Conclusion:
The commercially available pressure measurement system was found to be a reliable tool for measurement of low interface pressure under static condition.
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