• 제목/요약/키워드: Blood pressure measurement

검색결과 401건 처리시간 0.025초

Self-Monitoring of Blood Pressure and Feed-back Using APP in TReatment of UnconTrolled Hypertension (SMART-BP): A Randomized Clinical Trial

  • Dong-Ju Choi;Jin Joo Park;Minjae Yoon;Sung-Ji Park;Sang-Ho Jo;Eung Ju Kim;Soo-Joong Kim;Sungyoung Lee
    • 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.

측정 자세 및 상완 혈압에 의한 맥파 특성 변화 (Change of arterial pulse wave characteristic by measurement posture and brachial blood pressure)

  • 남기창;김은근;허현;허영
    • 감성과학
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    • 제12권3호
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    • pp.299-306
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    • 2009
  • 본 연구에서는 비침습적으로 압력 맥파를 검출하는 토노메트리 방식의 맥파 측정 장비인 SphygmoCor(AtCor, Australia)를 사용하여 측정자세에 따라 맥파를 측정하였다. 측정 결과를 통해 선 자세, 앉은 자세, 누운 자세에 따른 맥파의 분석 지표들의 변화를 분석하였다. 또한 측정된 데이터를 저혈압군, 정상혈압군, 고혈압군으로 구분하여 혈압군에 따른 맥파의 비교를 수행하였다. 그 결과 자세에 따른 요골동맥의 파형에서 유의차를 보인 분석지표는 맥파의 진폭에 해당되는 압력 보다 주요 피크가 발생되는 시간에서 나타났다. 맥압의 경우 맥파증대계수(AI)나 중심동맥압과 요골동맥압의 비율과 같이 맥압 간의 비율이 자세에 따른 변별력이 있었다. 사후검정에 따라 각 자세별로 상호 간에 모두 유의한 차이를 보인 분석지표는 주파(P_$T_1$)와 반사파(P_$T_2$)의 시간, 심박출지속시간(ED), 심박수(HR)로 나타났다. 혈압군에 대한 비교에서 대부분 맥파의 시간에 해당되는 지표보다 주요 피크의 진폭에 해당되는 맥파의 압력을 나타내는 지표가 혈압군에 따른 유의차를 보였다.

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Statistical analysis of KNHANES data with measurement error models

  • Hwang, Jinseub
    • Journal of the Korean Data and Information Science Society
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    • 제26권3호
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    • pp.773-779
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    • 2015
  • We study a statistical analysis about the fifth wave data of the Korea National Health and Nutrition Examination Survey based on linear regression models with measurement errors. The data is obtained from a national population-based complex survey. To demonstrate the availability of measurement error models, two results between the general linear regression model and measurement error model are compared based on the model selection criteria which are Akaike information criterion and Bayesian information criterion. For our study, we use the simulation extrapolation algorithm for measurement error model and the jackknife method for the estimation of standard errors.

선천성 심기형 환아에서 체외순환후 혈청 및 소변 Amylase치의 변화 (The Change of Derum and Urine Amylase Level Following Cardiopulmonary Bypass in the Patients with Congenital heart disease)

  • 백희종;김용진
    • Journal of Chest Surgery
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    • 제28권10호
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    • pp.892-899
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    • 1995
  • Pancreatitis is a known complication of cardiac surgery with cardiopulmonary bypass. Although ischemia is believed to be a factor, the exact cause of pancreatitis after cardiopulmonary bypass remains unknown.We prospectively studied 67 consecutive patients undergoing cardiac surgery with cardiopulmonary bypass for evaluation of the pancreatic injury after cardiopulmonary bypas. Serial measurement of amylase level in serum and urine was done postoperatively. Hyperamylasemia was detected in 15 patients[22.4% , of whom no patient had pancreatitis. There was no significant difference between serum amylase level and parameters such as cardiopulmonay bypass time, aortic cross clamp time, mean blood pressure, rectal temperature, flow rate, and use of circulatory arrest during cardiopulmonary bypass. Hyperamylasuria was detected in 8 patients[11.9% , and urine amylase level was elevated significantly in the groups with prolonged cardiopulmonary bypass, mean blood pressure more than 40mmHg, and rectal temperature more than 20 $^{\circ}$C. We recommend that serum amylase level and/or amylase-creatinine clearance ratio is measured for ealy detection and management of pancreatitis after cardiopulmonary bypass.

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ECG-NIBP 환자감시장치 개발 (Development of ECG-NIBP Patient Monitoring System)

  • 김남현;심원흠;이건기;라상원;김경하
    • 대한의용생체공학회:학술대회논문집
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    • 대한의용생체공학회 1997년도 추계학술대회
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    • pp.315-318
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    • 1997
  • The ECG-NIBP patient monitor consist of Noninvasive Blood Pressure(NIBP) module that have micro controller inside. This module transfer data by serial communication to the main processor. This system apply the fuzzy inflating method to reduce the blood pressure measuring time, and moving artifact removing algorithm, several parameters used or more accurate measurement. The ECG monitor use the Digital Signal Processor(DSP) or digital filtering, peak detection, heart rate calculation. This system also offer convenient user interface by rotary key, menu bar. With 7" CRT display, auxiliary TFT LCD display adapted to display information on wide screen.

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광전용적맥파를 이용한 혈압측정에 관한 연구 (A study on blood pressure measurement using photoplethysmography)

  • 이충렬;김경호
    • 한국컴퓨터정보학회:학술대회논문집
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    • 한국컴퓨터정보학회 2012년도 제46차 하계학술발표논문집 20권2호
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    • pp.225-226
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    • 2012
  • 본 논문에서는 손목과 손가락에서의 광전용적맥파(photoplethysmography:PPG)를 이용한 맥파 동시 측정에 있어서 두 신호의 peak간의 시간차와 혈압과의 관계를 비교하였다. 이를 통하여 연속적인 혈압측정방법에 대해 측정 가능성을 발견하였다. 본 논문에서는 적외선을 이용한 반사형 PPG 측정 시스템을 사용하였으며 손목과 손가락에서 동시에 측정한 신호를 측정된 혈압과 비교하였다. 이를 통하여 혈압에 따라 손목과 손가락의 PPG신호 peak간의 시간차에 일정한 변화가 있음을 발견하였고 이를 통하여 손목과 손가락사이의 PPG 신호만으로 연속혈압측정이 가능하다는 결론을 얻었다.

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A Study on the Assistant Device for the Treatment of Hypertension by Breathing Exercise

  • Kim, Baek-Ki
    • 한국정보기술학회 영문논문지
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    • 제9권1호
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    • pp.47-56
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    • 2019
  • Treatment for hypertension is basically done through drug administration, which is likely to suffer a number of side effects. Various non-drug treatments are presented to solve this problem. In this paper, we proposed a treatment method through breathing induction known as an effective method during non-drug treatment. This treatment encourages patients to reduce the number of breaths. By reducing the number of breaths, it can lower the patient's sympathetic nerves and relax the muscles, thereby lowering blood pressure. We presented these breathing algorithms that could reduce the number of breaths on the patient's own without expert help, and we enabled patients to train their own breathing techniques through a device that implements these breathing induction algorithms.

비침습적 복압 측정을 위한 생체 임피던스 전극의 최적 위치 선정 (Optimum electrode selection for measuring the abdominal pressure using bio-impedance method)

  • 안양수;김거식;송철규
    • 대한전기학회:학술대회논문집
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    • 대한전기학회 2007년도 심포지엄 논문집 정보 및 제어부문
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    • pp.46-48
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    • 2007
  • In this study, we determined the optimum electrode pair for measuring the abdominal pressure using bio-impedance method. Because impedance changes differ from a weight, a height, contractile force, volume of muscle and blood other or whatever of individuals, it was quantified using values of impedance change, correlation coefficient and SNR. Our results showed the optimum electrode pair (1, 9) which could detect impedance changes due to an increase of the intensity of the abdominal pressure. The correlation coefficient and quadratic function between the RMS values of EMG and the impedance changes were 0.87 and $y=0.0014x^2$+0.0620x+0.6958, respectively. It demonstrated that the abdominal pressure could be measured non-invasively and simply using bio-impedance method. We propose that this optimum electrode configuration would be useful for future studies involving the convenient measurement of abdominal pressure by ambulatory urodynamics monitoring study.

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체육전공과 비전공 남학생의 영양섭취, 혈청 무기질과 지질 함량 비교 (Comparison of Nutrient Intakes, Serum Minerals and Lipids between Physical Education Major and Non-major Students)

  • 김명희;최미경
    • 동아시아식생활학회지
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    • 제25권3호
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    • pp.417-424
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    • 2015
  • The purpose of this study was to investigate daily nutrient intakes, serum minerals and lipids in university students majoring in physical education. Anthropometric measurement, dietary survey, and blood analysis were conducted and compared between physical education major (PM) and other major (OM) students. Average age was 21.3 years for PM students and 20.8 years for OM students. Body weight and BMI of PM students were significantly higher than those of OM students (p<0.05). Systolic blood pressure of PM students was significantly lower than that of OM students (p<0.05). Daily energy intake was 2,047.4 kcal for PM students and 2,393.9 kcal for OM students, indicating a significant difference. Carbohydrate and vitamin B1 intakes of PM students were significantly lower than those of OM students. Serum calcium was significantly higher in PM students while serum phosphorus and magnesium levels were higher in OM students. Serum total cholesterol and LDL-cholesterol were significantly lower in PM students while HDL-cholesterol was lower in OM students. In conclusion, university students who major in physical education showed higher serum calcium, lower serum phosphorus and magnesium, and lower systolic blood pressure and serum cholesterol levels than other major students. These results show that physical activity as a major course of study is associated with decreased blood pressure and blood lipids as well as altered serum mineral levels.

혈압과 심박동에 대한 경혈자극 및 피부 분절 자극 효과의 비교연구 (The effect of sensory stimulation on different sites of the body on arterial blood pressures and heart rates)

  • 유기용;이광연;민병일;고은상;김지훈;홍무창
    • Journal of Acupuncture Research
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    • 제19권1호
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    • pp.147-158
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    • 2002
  • Objective : The aim of the present study is to investigate the effect of stimulation on different sites of the body on MBP(mean blood pressure) and HR(heart rate). Methods : Six healthy men have participated in this study. Before and after 10 min, exercise on a running machine of l0km/hr, acupressure, plain acupuncture and electroacupuncture(50Hz) stimulation was practiced on GV20, LI4, ST36, BL40 and non-acupoints on T4 and T10 respectively for 20 min. and in a control group without any treatment. The changes of MBP and HR after exercise have been observed for 20 min. at 5 minute intervals. Results : Compared with control, no significant difference was observed in research of the blood pressure measurement regardless of methods nor sites of stimulation. But there were trends of reduction in the heart rates in all experimental groups. Especially, in the group of acupressure on T10 before exercise, GV20, T10 after exercise and electroacupuncture on GV20, LI4, BL40 after exercise there was statistically significant decreases in heart rates. Conclusion : From the present experiment, it is concluded that somatic stimulation has effect on the heart rates but not on the blood pressures, and the presence of effective sites on the decreases of heart rates suggest that this effect may depend on sites of stimulation.

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