• The Journal of the Convergence on Culture Technology
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• v.8 no.3
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• pp.91-97
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• 2022

The purpose of this study was to analyze the measurements of blood pressure and time using manual and automatic blood pressure monitors in various road conditions to verify reliable blood pressure monitor in a moving ambulance. First, the manual blood pressure monitor palpation on unpaved roads showed a systolic pressure deviation of 5 mmHg. However, the automatic blood pressure monitor showed two measurement failures, one reading failure, and the measured systolic pressure deviation was 35 mmHg. The measurement time was 102 seconds faster on average than the automatic blood pressure monitor. Second, the palpation of the manual blood pressure monitor while going over speed bumps remained constant at 130 mmHg. However, the automatic blood pressure monitor had a systolic pressure deviation of 52 mmHg. The measurement time was 61 seconds faster on average than the automatic blood pressure monitor. Finally, the manual blood pressure monitor palpation on the sharp curve road showed a systolic pressure deviation of 5 mmHg. The automatic blood pressure monitor had one reading failure and the measured systolic pressure deviation was 21 mmHg. The measurement time showed that the manual blood pressure monitor was 101 seconds faster than the automatic blood pressure monitor. As a result, in a moving ambulance during an emergency, the manual blood pressure monitor showed high reliability because the blood pressure measurement was constant and the measurement time was short.

• Journal of Korean Academy of Fundamentals of Nursing
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• v.8 no.3
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• pp.366-378
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• 2001

Objective: The purpose of this study was to identify differences in measurement methods for blood pressure (Direct measurement, HP automatic indirect measurement, and SE 7000 Korean made indirect measurement), and to evaluate the clinical trial of the Korean made automatic indirect blood pressure measurement. Material & Methods: From June, 1999 to February, 2000, fifty five consecutive patients were randomized into hypertension group (n=20), normotension group (n=20), and hypotension group (n= 15). Measuring blood pressure by indirect methods (HP NIBP M 1008B and SE 7000 NIBP Korean made) was done simultaneously in the same arm with arterial line for direct blood pressure measurement (HP M1006A). The procedures were repeated ten times at intervals of 2 minutes. Statistical analysis was Performed using SPSS (version 8.0 for windows) software package. Values were expressed as means and standard deviation and means were compared using t-test. Statistical significance was considered present with a p value less than 0.05. Results: In the hypertension group and noromotension group, the disparity between HP direct measurement and indirect SE 7000 NIBP did not show any differences compared to the disparity between HP direct measurement and indirect HP NIBP. In the hypotension group, the disparity in the diastolic pressure between HP direct measurement and indirect SE 7000 NIBP was significantly different compared to the disparity between HP direct measurement and indirect HP NIBP (p<0.001), however, disparities in systolic pressure did not showed any differences. Conclusion: Direct blood pressure measurement (HP M1006A) can be replaced with indirect blood pressure measurements (HP NIBP M 1008B & SE 7000 NIBP) in normotension and hypertension patients. Korean made indirect measurement was found to be more accurate compared to HP indirect measurement in hypotension Patients, but more study is needed.

• 한국IT서비스학회:학술대회논문집
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• 2010.05a
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• pp.469-474
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• 2010

본 연구에서는 보건기관이 효율적으로 고혈압 관리 대상자를 탐색하고, 고혈압 관련 요인에 대한 지식을 효과적으로 관리할 수 있도록 하는 고혈압 고위험군 추정 모형 및 우선 사업 대상자 탐색 모형을 제안한다. 특히, 대용량 데이터 처리 및 실시간 시스템 운영, 외부 환경 변화를 고려한 자동 학습과 같은 현실적인 제약 조건을 해결하는 모형을 개발하는 것을 주 목표로 한다. 지역 보건소에서 수집된 의료 데이터를 이용하여 최적의 파라미터 값을 설정한 고혈압 고위험군 탐색 모형을 도출하였으며, 모형의 검증을 위하여 고혈압 환자정보로 구성된 평가용 데이터를 사용하여 고혈압 자연 발병률 대비 약 2배 수준으로 향상된 고혈압 환자 예측 정확도가 얻어지는 것을 확인하였다. 시스템 운영과 유비보수 측면에서 현실적으로 중요한 문제인 대용량 데이터 처리 및 외부 환경 변화에 강인한 자동학습 이슈를 해결하기 위한 방안에 대해서도 설명하였다.

• Clinical and Experimental Pediatrics
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• v.51 no.9
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• pp.998-1006
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• 2008

Purpose : Hypertension is defined as average systolic blood pressure and/or diastolic blood pressure that is ${\geq}95^{th}$ percentile for gender, age, and height on ${\geq}three$ occasions. Knowing that blood pressure values increase in children as they grow older, the purposes of this study were to measure blood pressure by an oscillometric device and to determine normal values and percentile curves for children. Methods : Systolic and diastolic blood pressures were measured twice with an oscillometric device in 3,545 boys and 3,145 girls under six years of age, in Seoul. Using this data, we determined average blood pressure values and percentile curves based on gender and age; we subdivided these values into blood pressures of $50^{th}$, $90^{th}$, $95^{th}$, and $99^{th}$ percentiles, by percentile of height. The regression coefficients and standard deviations of the systolic and diastolic blood pressure values were obtained from linear regression models. Results : Older boys and girls had higher systolic and diastolic blood pressure values. Older boys and girls in the same percentile of height for age had higher systolic and diastolic blood pressure values. Taller boys and girls within the same age group had higher systolic and diastolic blood pressure values. Conclusion : Blood pressure standards based on gender, age, and height were obtained via an oscillometric method. Llimitation of this study is that the study population was not from the whole country, but exclusively from Seoul. Nonetheless, the data from this study will be helpful in diagnosing and managing hypertension in Korean children.

• Childhood Kidney Diseases
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• v.15 no.1
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• pp.22-28
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• 2011

Hypertension is one of the most common chronic diseases in childhood and adolescence. Untreated hypertension adversely affects many organs including heart, brain, kidney and peripheral arteries. We reviewed the complication of central nervous system caused by pediatric hypertension. Cerebral blood flows are maintained constantly in response to changes in blood pressure by cerebral autoregulation. Severe hypertension which destructs cerebral autoregulation results in acute hypertensive encephalopathy syndrome, ischemic or hemorrhagic stroke. Chronic pediatric hypertension induces learning disability and cognitive defect which are subclinical symptom prior to brain damage caused by severe hypertension. We should consider the effect of hypertension on pediatric brain because appropriate antihypertensive drugs could prevent these complications.

• Journal of Biomedical Engineering Research
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• v.24 no.4
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• pp.281-286
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• 2003

Blood Pressure is one of the most fundamental Parameters which reflects physical conditions medically and the blood pressure measurement system using oscillometric method is a Non-Invasive Blood Pressure measurement device by measuring arterial Pressure through a cuff. In this paper. we designed a inflatable wrist blood pressure system which measures blood Pressure during the stepping inflation in the wrist cuff. The hardware system consists of a main power unit, a bladder in cuff unit, signal detection units, signal Processing units. a wireless data transmission unit, and a data display unit. We evaluated the reliability of this system by comparing and analyzing systolic. diastolic blood Pressure, and heart rate with other commercial blood Pressure measurement devices. Characteristic ratio values used to determine systolic and diastolic blood Pressure using MAA(Maximum Amplitude Algorithm) were 0.436 and 0.671 respectively.

• Proceedings of the Korean Operations and Management Science Society Conference
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• 2000.04a
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• pp.758-761
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• 2000

노인인구의 증가로 이에 대한 건강문제와 성인병의 증대 및 바쁜 일상생활로 인하여 본인의 건강상태를 수시로 스스로 확인할 수 있는 방안으로 무선데이터를 이용한 원격진료 시스템에 대한 요구가 크게 일어나고 있다. 이를 위해서 양방향 데이터 전송이 가능한 기기 (예를 들어 무선호출기나 휴대폰을 개량한 기기)를 이용해 실시간으로 혈당치나 혈압 측정치 등 종합적인 건강정보를 전송하고 이를 자동진단프로그램으로 위험여부를 판별해 경고하는 동시에 자신의 주치의에게 통보되는 시스템을 구현하고자 한다. 본 논문에서는 혈당치와 혈압 측정치의 데이터에 대하여 자동진단프로그램을 이용하여 관리도를 자동 생성하고 이를 전 문의사의 지식에 의한 진단프로그램과 연계하여 관리 한계선을 벗어나면 위험을 알리게 되고, 전문가시스템을 도입한 1대 1 대화형으로 자체진단을 하게 하는 인터넷 기반 진단프로그램을 개발하여 고객의 건강상태를 진단하게 한다. 본 연구는 기존의 이동통신기술을 혈압측정기와 결합시켜 의료기관과 연결시키는 데이터 전송기술을 응용하고, 의사가 실제 환자 앞에서 행하는 진료 과정을 원격으로 실시하는 원격진료 시스템의 프로토타입 개발을 목표로 하고 있다.

• Proceedings of the Korea Information Processing Society Conference
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• 2012.04a
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• pp.1342-1344
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• 2012

안드로이드를 기반으로 사용자가 자신의 상태를 점검하고, 혈압 상태를 자동으로 기록하고, 응급상황 발생시 경고하고 가까운 병원으로 안내하는 시스템을 구현하였다. 스마트폰의 통신을 이용하여 평상시의 혈압을 서버에 저장하고 그 데이터를 바탕으로 환자에게 알맞은 처방을 제공한다.

• Proceedings of the Korea Inteligent Information System Society Conference
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• 2000.04a
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• pp.243-249
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• 2000

본 연구의 목적은 휴대폰이나 무선호출기가 가진 양방향 데이터 전송기술을 활용하여 혈압자료를 주기적 혹은 수시로 송신하고 개인별로 축적된 건강관련데이터를 이용하여 혈압과 관련된 심혈관 질환을 예측하는 시스템을 개발하고자 한다. 본 시스템은 크게 5가지 모듈로 구성되어 있다. 첫째는 가정용 혈압측정기에 무선 데이터 전송 기능이 부가된 혈압측정 및 전송장비이다. 둘째는 무선데이터 송수신을 위한 데이터 전송과 관련된 시스템을 구축하는 부분이다. 셋째는 수신된 개인별 혈압 데이트를 DB화하고 이를 자동으로 검사하여 혈압 이상변동 여부를 수시로 확인하고, 필요시 본인에게 경고 메시지를 보내어서 담당의사와 상의하거나 병원에 가서 정밀진단을 받도록 사전에 건강 이상상태를 경고해 주는 조기경보시스템이다. 넷째는 의사의 전문지식과 개인별 혈압자료를 기초로 하여 인터넷 상에서 스스로 심혈관 관련 질병을 진단해 볼 수 있는 인터넷 기반 심혈관 질병 진단 시스템의 구축이다. 다섯 번째로는 이러한 모든 기능이 복합된 전체 시스템을 통합하고 각 부분을 연결하는 시스템 인터페이스 및 사용자가 아주 쉽게 사용할 수 있도록 하는 사용자 인터페이스 부분이다. 본 논문에서는 이를 위한 전체 시스템의 프레임웍을 제시하고 혈압과 의사의 전문지식에 기초한 심혈관 질병 진단 전문가 시스템에 대하여 구축하고자 한다.

• Journal of Korean Academy of Fundamentals of Nursing
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• v.3 no.1
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• pp.96-107
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• 1996

Automated blood pressure monitors have gained acceptance in many clinical settings with the increasing demand, the accurate BP measuring devices reguire the need for validation. We have evaluated the Dinamap 8100, an oscillometric automated blood pressure monitor, using the Mercury sphygmomanometer as a reference. Comparison of sphygmomanometers was conducted 60 patients (30-Normotensive group, 30-Hypertensive group at Seoul National University Hospital. Two trained observers took measure blood pressure(systolic/diastolic) at the same time using the Dinamap 8100 on one arm and the Mercury on the other. For each measurement, the device was randomly selected from a group of devices repetively used for the experiment. Mean readings for systolic pressure with the Dinamap 8100 in normotensive group were lower(mean difference ; 4.26mmHg) than the Mercury type. Mean readings for systolic pressure with the Dinamap 8100 in hypertensive group were lower(mean difference ; 9.05mmHg) than the Mercury type. Mean readings for diastolic pressure with the Dinamap 8100 in normotensive group were lower (mean difference ; 7.46mmHg) than the Mercury type. Mean readings for diastolic pressure with the Dinamap 8100 in hypertensive group were lower(mean difference ; 9.03mmHg) than the Mercury type. We have found that blood pressure readings with the Dinamap 8100 were lower than those with the Mercury type. we are using the Mercury type in clinics, although it has observer bias and terminal digit preference. But the Dinamap 8100 is readily portable, simple to use, and capable of preventing observer bias and terminal digit preference. The Dinamap 8100 is acceptable for blood pressure determination in subjects who are normotensive or hypertensive ones.