scholarly journals Noise Analysis of Average Blood Pressure in Terms of Aggregation of First-Order Autoregressive Process Models

2013 ◽  
Vol 79 (802) ◽  
pp. 1980-1989
Author(s):  
Takayuki FUJITA ◽  
Akira TSUKAMOTO ◽  
Shigeru TADA
Keyword(s):  
Blood Pressure ◽  
Noise Analysis ◽  
Autoregressive Process ◽  
Process Models ◽  
First Order ◽  
Average Blood Pressure

Getting to know a new protocol in hypertension care

2020 ◽  
Vol 16 (1) ◽  
Author(s):  
Mona Lundin
Keyword(s):  
Blood Pressure ◽  
Digital Technology ◽  
Interaction Analysis ◽  
Medical Discourse ◽  
Graphical Form ◽  
Graph Data ◽  
Average Blood Pressure ◽  
Infrastructure Design

This study explores the use of a new protocol in hypertension care, in which continuous patient-generated data reported through digital technology are presented in graphical form and discussed in follow-up consultations with nurses. This protocol is part of an infrastructure design project in which patients and medical professionals are co-designers. The approach used for the study was interaction analysis, which rendered possible detailed in situ examination of local variations in how nurses relate to the protocol. The findings show three distinct engagements: (1) teasing out an average blood pressure, (2) working around the protocol and graph data and (3) delivering an analysis. It was discovered that the graphical representations structured the consultations to a great extent, and that nurses mostly referred to graphs that showed blood pressure values, which is a measurement central to the medical discourse of hypertension. However, it was also found that analysis of the data alone was not sufficient to engage patients: nurses' invisible and inclusion work through eliciting patients' narratives played an important role here. A conclusion of the study is that nurses and patients both need to be more thoroughly introduced to using protocols based on graphs for more productive consultations to be established. 

Abstract 14652: Systolic Blood Pressure Trajectories and Cardiovascular Outcomes in SPRINT

Circulation ◽  
2020 ◽  
Vol 142 (Suppl_3) ◽  
Author(s):  
Charles A German ◽  
Tali Elfassy ◽  
Matthew J Singleton ◽  
Carlos J Rodriguez ◽  
Walter T Ambrosius ◽  
...  
Keyword(s):  
Myocardial Infarction ◽  
Blood Pressure ◽  
Systolic Blood Pressure ◽  
Latent Class ◽  
Stable Group ◽  
Coronary Syndrome ◽  
Average Blood Pressure ◽  
Increased Risk ◽  
All Cause Mortality ◽  
Over Time

Introduction: Blood pressure trajectories have been associated with cardiovascular disease (CVD) in observational studies. It is unclear whether these associations are independent of average blood pressure over time. Methods: We used data from SPRINT to identify systolic blood pressure (SBP) trajectories among a cohort of 8901 participants by incorporating SBP measures during the first 12 months of the trial post randomization. Trajectories were identified using latent class based modeling. Study outcomes included incident CVD, defined as myocardial infarction, acute coronary syndrome not resulting in myocardial infarction, stroke, acute decompensated heart failure, or death attributable to CVD, and all-cause mortality. Cox proportional hazards models were used to evaluate associations between SBP trajectories and our outcomes of interest. Results: Four distinct SBP trajectories were identified: ‘low decline’ (40%), ‘high decline’ (6%), ‘low stable’ (48%), and ‘high stable’ (5%) (Figure 1). Relative to the low decline group, the low stable group was associated with a 29% increased risk of CVD (HR: 1.29, 95%CI: 1.06-1.57) and the high stable group was associated with a 76% increased risk of all-cause mortality (HR: 1.76, 95%CI: 1.15-2.68) after baseline multivariable adjustment. Relative to the low stable group, the high stable group was associated with a 54% increased risk of all-cause mortality (HR: 1.54, 95%CI: 1.05-2.28). When adjusting for average blood pressure across the 12 month time period, there were no significant differences in outcomes. Conclusion: We identified 4 SBP trajectories using data from SPRINT and found differences in the risk of CVD and all-cause mortality after baseline adjustment. However, there were no differences in the risk of these outcomes after adjusting for average blood pressure over time. These results suggest that the pattern of blood pressure control may not be relevant as long as the target blood pressure is achieved.

scholarly journals Effectiveness Of Rosella Tea On Decreasing Blood Pressure In Hypertension Patients In Tulungagung District

2020 ◽  
Vol 9 (1) ◽  
pp. 162-169
Author(s):  
Farida Farida ◽  
Yusuf Abdillah ◽  
Poppy Farasari
Keyword(s):  
Blood Pressure ◽  
Research Design ◽  
Design Research ◽  
Sampling Technique ◽  
Test Statistics ◽  
Average Blood Pressure ◽  
Quota Sampling ◽  
Stage 1 ◽  
Normally Distributed

The research design used pre experimental. The sampling technique uses quota sampling with a sample of 30 respondents. Design research was one group pretest-posttest. The study used a dose of 2 x 3 grams of dried rosella each day for seven (7) days. Test Statistics using Paired T test.The results of the study were obtained before the treatment as many as 26 respondents (86.7%) with the classification of stage 1 hypertension and after treatment to 18 respondents (60%), this was due to filling vacancies in the incidence of prehypertension and normal tension.normality test Kolmogorov-smirnof data is normally distributed. The results of thestatistical Paired T-testtest showed that the value of p systole = 0,000 and dyastole = 0.001 with α = 0.05 where p <α so that Ho was rejected, which means there was a decrease in the average blood pressure after giving rosella tea

scholarly journals Robust Trend Estimation for AR(1) Disturbances

2016 ◽  
Vol 34 (2) ◽  
Author(s):  
Roland Fried ◽  
Ursula Gather
Keyword(s):  
Robust Estimation ◽  
Linear Trend ◽  
Autoregressive Process ◽  
Trend Estimation ◽  
First Order ◽  
Repeated Median

We discuss the robust estimation of a linear trend if the noise follows an autoregressive process of first order. We find the ordinary repeated median to perform well except for negative correlations. In this case it can be improved by a Prais-Winsten transformation using a robust autocorrelation estimator.

scholarly journals PENGARUH PEMBERIAN JUS CAMPURAN BELIMBING (Averhoa carambola linn) DAN MENTIMUN (Cucumis sativus linn) TERHADAP TEKANAN DARAH PASIEN HIPERTENSI RAWAT JALAN DI RUMAH SAKIT UMUM DAERAH KOTA MATARAM

2019 ◽  
Vol 4 (1) ◽  
pp. 40
Author(s):  
Devi Rahma ◽  
Suhaema Suhaema ◽  
Fifi Luthfiyah ◽  
Made Darawati
Keyword(s):  
Blood Pressure ◽  
Treatment Group ◽  
Antihypertensive Drugs ◽  
Vegetable Consumption ◽  
Research Result ◽  
T Test ◽  
Control Group ◽  
High Potassium ◽  
Control Group Design ◽  
Average Blood Pressure

Background. Hypertension can be a risk factor for stroke, coronary heart disease, heart failure and kidney failure and is known as the thesilent killer. The prevalence of hypertension in West Nusa Tenggara Province is 24.3% (Riskesdas, 2013). Medical Record Data of Mataram City Public Hospital, hypertension became the first of the top 10 outpatient diseases in 2015. The only treatment for non-pharmacological hypertension was by increasing fruit and vegetable consumption due to high potassium content. Research Methods. The type of this research is experimentation with Randomized Control Trial (RCT) design with Pretest-Posttest with Control Group design. The number of subjects is 20 people obtained from the formula Lemeshow (1997). Both groups continued to take antihypertensive drugs, but the treatment group was given 250 ml of starfruit juice and cucumber juice for 7 days. The statistical analysis used was the paired t-test and independent t-test. Research Result. The average blood pressure before the study in the treatment group was 150/91 mmHg, in the control group it was 142/83 mmHg. The average blood pressure after the study for the treatment group was 132/81 mmHg, while the control group was 144/81 mmHg. There was a decrease in blood pressure in the treatment group after the intervention was 18 mmHg for systolic (p = 0.000) and 10 mmHg for diastolic (p = 0.004), but there was no decrease in blood pressure both systolic and diastolic in the control group. Conclusion. Giving a mixture of star fruit and cucumber juice affects the decrease in systolic and diastolic blood pressure.

scholarly journals Modern approaches to the diagnosis of placental insufficiency according to cardiotocography

2018 ◽  
Vol 5 (3) ◽  
pp. 96-101
Author(s):  
I. M. Ordiyants ◽  
U. T. Mekhdieva ◽  
A. M. Savicheva
Keyword(s):  
Blood Pressure ◽  
Body Temperature ◽  
Pregnant Women ◽  
Pressure Pulse ◽  
Automated Analysis ◽  
Well Being ◽  
Placental Insufficiency ◽  
The Real ◽  
Pregnancy And Childbirth ◽  
Average Blood Pressure

Purpose.The goal is to determine the real possibili es of assessing the fetal condi on in the ante- and intranatal periods according to the data of cardiotocography.Paents and methods.73 pa ents with physiological pregnancy at 24-40 weeks were prospec vely examined. The prac cal signifi cance of the g6b plus General MEDITECH automated fetal monitor, which allows to determine the condi on of the mother and fetus at the same  me, was evaluated.Results.The average blood pressure in the examined women was 127.2 ± 3.6 by 73.7 ± 2.3 mm. gt; pillars, pulse – 76 ± 1,5 beats/min. As for the contrac le capacity of the uterus, 47 (64,4%) pregnant women in 24–30 weeks. associated with diagnosis, and 19 (26%) – are harbingers of the forthcoming birth. The average SpO2was 99.12 ± 0.11%. Regardless of the gesta onal age, in 7 (9.6%) pregnant women – 97%, 40 (54.8%) – 99% and 21 (28.8%) – 100%. In order to assess the fetal condi on by the nature of his heartbeat, we performed an automated CTG analysis according to W. Fisher, D. Redman, FIGO: according to W. Fisher, depending on the gesta onal age of 6–7 points, 12 (16.4%) pregnant women in 25–26 weeks and 9 (12.3%) – 40 weeks, which according to the ball scale corresponds to a suspicious type. The Doze–Redman criteria were met in 47 (64.4%) pregnant women and were not met – in 26 (35.6%). Interpreta on according to FIGO guidelines as normal was detected in 64 (87.7%) pregnant women and in 9 (12.3%) – doub ul. Depending on the period of pregnancy, this group consisted of the same 9 (12.3%) pregnant women in a period of 40 weeks.Conclusion.Automated analysis allows for the correla on between the main indicators of the well-being of the maternal organism (SpO2, blood pressure, pulse, body temperature, ECG) and fetal CTG parameters (Fisher scale, Dowz Redman criteria and FIGO guidelines) to develop obstetric tac cs for each specifi c pa ent during pregnancy and childbirth.

Differential Responses of Resistance Arterioles to Elevated Intraluminal Pressure in Blacks and Whites

2021 ◽  
Author(s):  
Ahmad Sabbahi ◽  
Assem Ellythy ◽  
Chueh-Lung Hwang ◽  
Shane A. Phillips
Keyword(s):  
Blood Pressure ◽  
Microvascular Dysfunction ◽  
Normal Pressure ◽  
Intraluminal Pressure ◽  
Internal Diameter ◽  
Mortality And Morbidity ◽  
Black And White ◽  
Average Blood Pressure ◽  
Before And After ◽  
Blacks And Whites

Black Americans have an earlier onset, higher average blood pressure, and higher rates of hypertension-related mortality and morbidity, compared to whites. The racial difference may be related to microvasculature, the major regulatory site of blood pressure. The goal of this study was to compare the response of resistance vessels to high intraluminal pressure between black and white participants. A total of 38 vessels were obtained from human fat samples (21 black, 17 white; mean age 32 ± 12 years and BMI 26.9 ± 4.9; between-group P ≥ 0.05) and included in this study. Internal diameter was measured in response to flow induced by various pressure gradients (Δ10, Δ20, Δ40, Δ60, and Δ100 cmH2O), and flow-induced dilation (FID) was calculated before and after high intraluminal pressure (150 cm H2O). Prior to high intraluminal pressure, FID was not different between blacks and whites (P = 0.112). After exposure to high intraluminal pressure, FID was reduced at every pressure gradient in vessels from blacks (P < 0.001), while FID did not change in white participants except at Δ 100 cmH2O. When incubated with the H2O2 scavenger PEG-catalase, the FID response in vessels from black, but not white, individuals was significantly reduced and the magnitude was higher at normal pressure relative to high pressure. Our findings suggest that vessels from self-identified black individuals are more susceptible to microvascular dysfunction following transient periods of high intraluminal pressure compared to whites and show greater dependence on H2O2 as a main contributor to FID at normal pressures.

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