• 한국산학기술학회논문지
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• 제14권3호
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• pp.1213-1220
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• 2013

본 연구는 지식경제부가 주도한 u-Health 공공시범 사업의 하나인 스마트케어서비스의 효과를 분석하고자 시도되었다. 2011년 12월 1일부터 2012년 8월 30일 까지 연구에 동의한 51명의 고혈압 대상자(수축기압 140mmHg이상)들은 기존의 1차 의료기관의 내원진료와 투약을 유지하면서 원격모니터링을 포함한 24주간의 원격건강관리서비스를 받았다. 24 주 동안의 평균 자가 측정 혈압 모니터링 횟수와 원격 상담횟수는 121회와 14.8회였다. 24주 스마트케어 서비스 후 수축기와 이완기혈압은 유의하게 감소하였으며, 서비스 초기 수축기압이 140mmHg 이상이던 전체 대상자의 86.3%가 24주후 정상 수축기혈압을 유지하였다. 스마트케어서비스는 고혈압대상자의 혈압변화에 있어 긍정적인 영향을 미치는 것으로 나타났다.

• 지역사회간호학회지
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• 제15권4호
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• pp.517-527
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• 2004

Purpose: This research is to find a solution for educational work on high blood pressure control in public health centers by analyzing their current status. Method: It analyzed data from 133 public health centers that had been doing educational work on high blood pressure, through a questionnaire. Also, it developed recommendations by converging opinions from an expert group made of 25 people with nominal group technique. Result: The educational methods of public health centers did not make any approach to get to the goal of the work. The mass media education and campaign activities for the general public had just temporary and passive propensities. In education for patients, it did not use appropriate methods to present management techniques for diagnosis process of patients, medication management, self monitoring BP, and risk factors. Pocket book for monitoring high blood pressure was not focused on self-recording for self-management. The expert group recommended that educational materials for adults should be developed focusing on treatments and observance of risk factors through daily living, and those for children should be focused on basic understanding about diseases, and life style. Conclusion: Presenting direction and strategy of fundamental education work is needed for public health centers by giving them standard educational guidelines of managing high blood pressure nationally, and it is desirable that fundamental frameworks of educational materials should be developed and distributed by professional groups nationally.

• KSII Transactions on Internet and Information Systems (TIIS)
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• 제16권1호
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• pp.173-187
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• 2022

Recent studies have focused on self-management of hypertension using smart devices (cellular phones, tablets, watches). It has proven to be an effective tool for early detection and control of high Blood Pressure (BP) without affecting patients' daily routines. This systematic review surveys the existing self-monitoring systems, evaluate their effectiveness and compares the different approaches. We investigated the current systems in terms of various attributes, including methods used, sample size, type of investigation, inputs/ outputs, rate of success in controlling BP, group of users with higher response rate and beneficiaries, acceptability, and adherence to the system. We identified some limitations, shortcomings, and gaps in the research conducted recently studying the impact of mobile technology on managing hypertension. These shortcomings can generate future research opportunities and enable it to become more realistic and adaptive. We recommended including more observable factors and human behaviors that affect BP. Furthermore, we suggested that vital monitoring/logging and medication tuning are insufficient to improve hypertension control. There is also a need to observe and alter patient behavior and lifestyles.

• 한국정보통신학회:학술대회논문집
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• 한국정보통신학회 2015년도 춘계학술대회
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• pp.308-311
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• 2015

전세계적으로 건강에 대한 관심이 증가되어 기존 의료 장비보다 편리하고 정밀한 비접촉, 실시간 헬스 모니터링 시스템 개발이 요구되고 있다. 그러므로 우리는 UWB(Ultra Wide Band) 레이더를 통해서 인체에 비접촉, 연속적으로 혈관의 운동 신호를 수집하고 이 수집된 데이터를 실시간적으로 신호처리해서 맥박, 수축기 혈압, 이완기 혈압을 측정할 수 있는 임베디드 기반의 전파를 이용한 혈압 모니터링 시스템을 개발하였다. 이 시스템은 임베디드 기반 GUI(Graphic User Interface)의 프로그램을 통해서 UWB 레이더 및 제어 시스템을 모니터링하면서 정확한 정보를 실시간으로 LCD(Liquid Crystal Display)에 표시한다. 임베디드 시스템은 소형화를 위해 제한된 자원을 사용해야 하기 때문에 기존의 PC GUI 설계 모드는 상대적으로 더 큰 메모리를 사용하므로 임베디드 시스템에 적합하지 않을 뿐 만 아니라 더 많은 CPU(Central Processing Unit) 처리시간을 요구한다.

• 기본간호학회지
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• 제12권3호
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• pp.307-316
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• 2005

Purpose: The purpose of this study was to identify 24 hours blood pressure variations among adults over 40 years of age. Method: The participants(50 adults) were recruited from P hospital and B company. The participants were divided into normotensive and hypertensive tendency groups and then sub-divided into non-dipper, dipper, and extreme dipper. The data were collected from April, 2003 to September, 2004 and analyzed using SPSS for Window program. Results: 1) There were significant differences in cardiovascular risk factor, systolic and diastolic blood pressures, and LDH, diet between the normotensive and hypertensive tendency groups. 2) Dippers in both groups showed a marked decrease in blood pressure during the night, but non-dippers in both groups didn't show a marked nocturnal decrease in blood pressure. 3) There were significant differences in heart rate, WHR, BMI, LDH, triglyceride, glucose, affective-oriented coping strategies between dippers and non-dippers. 4) There were significant differences in heart rate, WHR, BMI, LDH, triglyceride, affective-oriented coping strategies between dipper and non-dipper within hypertensive tendency group. Conclusion: Further studies are needed to provide effective intervention in hypertension when applying 24 hour blood pressure monitoring.

• 전기학회논문지
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• 제67권7호
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• pp.917-927
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• 2018

High blood pressure causes various cardiovascular diseases and is associated with mortality. Periodic self-monitoring and recording of blood pressure is very helpful in preventing the occurrence of secondary diseases caused by hypertension. However, existing cuff-type blood pressure monitors have many limitations. As an alternative of that, a method of estimating the blood pressure by measuring the velocity change of the blood flow using the photo plethysmography is widely known. However, photo plethysmography have a low correlation with blood flow. So, we will propose an algorithm for estimating blood pressure using the relationship between velocity change of blood flow measured by magnetic field instead of photo plethysmography and electrocardiogram. For this purpose, First, we analyzed the correlation between photo plethysmography and magneto plethysmography. the correlation between MPG and PPG was r = 0.9449. Second, we compared estimated blood pressure and measured blood pressure. In the four experiment each result was r = 0.5737, r = 0.7863, r = 0.5669, and r = 0.7445.

• 한국컴퓨터정보학회논문지
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• 제28권11호
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• pp.155-160
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• 2023

본 논문은 광혈류신호를 이용하여 혈압을 예측하는 방법을 제시한다. 제시한 방법은 먼저, 광혈류신호를 측정한 후, 전처리 과정을 통해 아티펙트를 제거하고 학습을 위한 신호를 얻는다. 그리고 혈압에 영향을 주는 몸무게와 키를 부가 정보로 측정한다. 다음으로, 인공지능 알고리즘을 통해 광혈류신호, 키, 그리고 몸무게를 입력변수로 학습하여 수축기와 이완기 혈압을 추정하도록 시스템을 구축한다. 구축된 시스템은 사전에 입력된 키와, 몸무게, 그리고 측정한 광혈류신호를 가지고 수축기와 이완기 혈압을 예측한다. 제안한 방법은 무구속 방식으로 피검자의 키와 몸무게, 그리고 심장 및 혈관의 상태를 반영하는 광혈류신호를 입력받아 실시간, 연속적으로 혈압 예측이 가능하다. 본 연구에서 제시한 인공지능 기반 혈압예측시스템의 유용성을 확인하기 위해 측정한 혈압과 예측한 혈압의 비교를 통해 결과의 유용성을 확인한다.

• 한국농촌간호학회지
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• 제6권1호
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• pp.33-43
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• 2011

Purpose: This study was done to verify the effects of a self-regulation program for management of hypertension. Method: Thirty patients with hypertension registered in a community health center were selected as the experiment group, and control group were patients in another community health center, matched for age and gender. The self-regulation program included daily blood pressure checks, periodic counseling, and health education. A self-check digital device with instructions was provided for self-monitoring of blood pressure, and the participants were interviewed before they took part in the program. Results: The first hypothesis was supported: There will be a greater reduction in both systolic and diastolic blood pressure for patients with hypertension who participate in the self-regulation program compared to patients in the control group. The second hypothesis was also supported: Patients with hypertension who participate in the self-regulation program will perform self-care activities better than those in the control group. Conclusion: The findings indicate that a self-regulation program reduces systolic and diastolic blood pressure and improves self-care in patients with hypertension. It is recommended that this self-regulation program be used in community health clinics for management of hypertension and prevention of complications.

• Clinical and Experimental Pediatrics
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• 제57권9호
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• pp.403-409
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• 2014

Purpose: Although high morning blood pressure (BP) is known to be associated with the onset of cardiovascular events in adults, data on its effects in children with hypertension are limited. Our retrospective study aimed to define the clinical characteristics of children with morning hypertension (MH) and to determine its associated factors. Methods: We reviewed 31 consecutive patients with hypertension, confirmed by the ambulatory blood pressure monitoring (ABPM). We divided these patients into 2 groups: the MH group (n=21, 67.7%), morning BP above the 95th percentile for age and height (2 hours on average after waking up) and the normal morning BP group (n=10, 32.3%). We compared the clinical manifestations, laboratory results, and echocardiographic findings including left ventricular hypertrophy (LVH) between the groups. Results: The early/atrial (E/A) mitral flow velocity ratio in the MH group was significantly lower than that in the normal morning BP group. In addition, LV mass was higher in the MH group than in the normal morning BP group, although the difference was not statistically significant. The age at the time of hypertension diagnosis was significantly higher in the MH group than in the normal morning BP group (P =0.003). The incidence of hyperuricemia was significantly higher in the MH group than in the normal morning BP group. Conclusion: Older patients and those with hyperuricemia are at higher risk for MH. The rise in BP in the morning is an important factor influencing the development of abnormal relaxation, as assessed by echocardiography. Clinical trials with longer follow-up periods and larger sample sizes are needed to clarify the clinical significance of MH.

• Korean Circulation Journal
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• 제52권10호
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• pp.785-794
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• 2022

Background and Objectives: Self-monitoring of blood pressure (SMBP) is a reliable method used to assess BP accurately. However, patients do not often know how to respond to the measured BP value. We developed a mobile application-based feed-back algorithm (SMBP-App) for tailored recommendations. In this study, we aim to evaluate whether SMBP-App is superior to SMBP alone in terms of BP reduction and drug adherence improvement in patients with hypertension. Methods: Self-Monitoring of blood pressure and Feed-back using APP in Treatment of UnconTrolled Hypertension (SMART-BP) is a prospective, randomized, open-label, multicenter trial to evaluate the efficacy of SMBP-App compared with SMBP alone. Patients with uncomplicated essential hypertension will be randomly assigned to the SMBP-App (90 patients) and SMBP alone (90 patients) groups. In the SMBP group, the patients will perform home BP measurement and receive the standard care, whereas in the SMBP-App group, the patients will receive additional recommendations from the application in response to the obtained BP value. Follow-up visits will be scheduled at 12 and 24 weeks after randomization. The primary endpoint of the study is the mean home systolic BP. The secondary endpoints include the drug adherence, the home diastolic BP, home and office BP. Conclusions: SMART-BP is a prospective, randomized, open-label, multicenter trial to evaluate the efficacy of SMBP-App. If we can confirm its efficacy, SMBP-App may be scaled-up to improve the treatment of hypertension.