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자료유형
학술저널
저자정보
임현균 (한국표준과학연구원) 도일 (한국표준과학연구원) 안봉영 (한국표준과학연구원)
저널정보
대한의용생체공학회 Biomedical Engineering Letters (BMEL) Biomedical Engineering Letters (BMEL) Vol.5 No.4
발행연도
2015.1
수록면
296 - 301 (6page)

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Purpose Blood pressure (BP) is one of the most importantpieces of information to diagnose cardiovascular diseases butthe measurement readings could be easily changed by variousfactors. If these readings are wrong, it may ultimately lead toa misdiagnosis. In addition, there is a problem when thereare different devices used to read blood pressure becausethese devices may give different readings. Methods Four different BP measurement devices were used,including two mercury sphygmomanometers and twoautomatic digital devices. Thirty-eight healthy young people(mean age = 27.1±6.1 years) stayed one night at a clinicalcenter and the BPs were measured from their right arms onthe following day. Factors such as exercise, food, and smokingthat may affect the BP were controlled and prohibited. Alltests were repeated three times and all devices were calibratedbefore the test. Absolute BP value difference between amercury sphygmomanometer and an automatic digital devicewas counted for the BP difference between devices ≥ 5 mmHgand ≥ 10 mmHg of each measurement. Results Significant inter-device BP differences were foundbetween a mercury sphygmomanometer and two automaticdevices (p<0.01) while no significant difference was foundbetween mercury sphygmomanometers (p>0.5); all subjectsshowed BP difference less than 5 mmHg between twomercury sphygmomanometers while only 32% and 38% ofsubjects showed BP difference less than 5 mmHg for two outof three repeated tests between a mercury sphygmomanometerand an automatic device, and even 26% ~ 36% of subjectsshowed BP difference ≥ 10 mmHg. Conclusions This study result stresses that it is necessary tocheck the reliability of automatic blood pressure devicesused in the hospitals. In addition, an easier and moreconvenient protocol should be developed for the routinecalibration of automatic devices.

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