scholarly journals Stress-Induced Blood Pressure Elevation Self-Measured by a Wearable Watch-Type Device

2020 ◽  
Author(s):  
Naoko Tomitani ◽  
Hiroshi Kanegae ◽  
Yuka Suzuki ◽  
Mitsuo Kuwabara ◽  
Kazuomi Kario
Keyword(s):  
Blood Pressure ◽  
Emotional Stress ◽  
Emotional State ◽  
The Self ◽  
Mixed Effect ◽  
Effect Analysis ◽  
Blood Pressure Elevation ◽  
Multiple Factors ◽  
Ambulatory Bp Monitoring ◽  
Type Device

Abstract BACKGROUND Psychological stress contributes to blood pressure (BP) variability, which is a significant and independent risk factor for cardiovascular events. We compared the effectiveness of a recently developed wearable watch-type BP monitoring (WBPM) device and an ambulatory BP monitoring (ABPM) device for detecting ambulatory stress-induced BP elevation in 50 outpatients with 1 or more cardiovascular risk factors. METHODS The WBPM and ABPM were both worn on the subject’s nondominant arm. ABPM was measured automatically at 30-minute intervals, and each ABPM measurement was followed by a self-measured WBPM measurement. We also collected self-reported information about situational conditions, including the emotional state of subjects at the time of each BP measurement. We analyzed 642 paired BP readings for which the self-reported emotional state in the corresponding diary entry was happy, calm, anxious, or tense. RESULTS In a mixed-effect analysis, there were significant differences between the BP values measured during negative (anxious, tense) and positive (happy, calm) emotions in both the WBPM (systolic BP [SBP]: 9.3 ± 2.1 mm Hg, P < 0.001; diastolic BP [DBP]: 8.4 ± 1.4 mm Hg, P < 0.001) and ABPM (SBP: 10.7 ± 2.1 mm Hg, P < 0.001; DBP: 5.6 ± 1.4 mm Hg, P < 0.001). The absolute BP levels induced by emotional stress self-measured by the WBPM were similar to those automeasured by the ABPM (SBP, WBPM: 141.1 ± 2.7 mm Hg; ABPM: 140.3 ± 2.7 mm Hg; P = 0.724). The subject’s location at the BP measurement was also significantly associated with BP elevation. CONCLUSIONS The self-measurement by the WBPM could detect BP variability induced by multiple factors, including emotional stress, under ambulatory conditions as accurately as ABPM.

Effects of Self-Service Blood Pressure Measurement in Outpatient Obstetrics Clinics on waiting time, satisfaction of pregnant women in a tertiary hospital: Cross-sectional Survey (Preprint)

2020 ◽  
Author(s):  
Wanhua Xie ◽  
Yunhe Gao ◽  
Weichi Tan
Keyword(s):  
Blood Pressure ◽  
Pregnant Women ◽  
Waiting Time ◽  
Pressure Measurement ◽  
Medical Center ◽  
Blood Pressure Measurement ◽  
Outpatient Service ◽  
The Self ◽  
Clinical Practices ◽  
Self Service

BACKGROUND In the conventional method, the blood pressure values of pregnant women were measured by nurses in the obstetrics outpatient clinics, and then were entered into the computer system.The pregnant women should wait for long time to complete this process.We hypothesized that the self-service blood pressure measurement by pregnant women could be a better option rather than measuring the blood pressure by nurses. OBJECTIVE This study aimed to analyze the effect of self-service blood pressure measurement in obstetrical outpatient clinic on waiting time, satisfaction of pregnant women and outpatient volume, and provide reference for the optimization of outpatient service processes. METHODS This was a cross-sectional study. The waiting time and satisfaction degree of pregnant women, as well as the outpatient volume in the Obstetrics Outpatient Clinic were compared on the use of self-service blood pressure measurement system with the conventional method. A total of 519 pregnant women in the obstetrics outpatient clinics of Guangzhou Women and Children’s Medical Center in China participated in the satisfaction survey. The sample means were compared with t-test. RESULTS Compared to wait a longer queue for blood pressure measured by nurses, after using the self-service blood pressure measurement system, the waiting time of pregnant women for blood pressure measurement was significantly reduced from (18.57±9.68) min to (2.39±1.96) min (P<0.001). In addition, the satisfaction degree of pregnant women was significantly increased (P<0.001), and the monthly outpatient volume was significantly increased (P=0.02,P<0.05). CONCLUSIONS This study showed that after implementation of self-service blood pressure measurement, the waiting time of the pregnant women for blood pressure measurement was decreased significantly, while the satisfactory degree and outpatient flow were increased significantly, improving the cost-effectiveness.Therefore, this method is worth to be popularized in clinical practices. Relevance to clinical practice: How to use medical intelligence in clinical practices, replace manual works by self-service devices to address the high outpatient flow, high work load of medical personnel, and improve the experience of patients in seeking medical services are the most concerned issues by both patients as well as hospital managers.This study demonstrated that the self-service blood pressure measurement as a promising strategy in clinical practices and provided reference for the optimization of outpatient service processes. CLINICALTRIAL This study was approved by the Ethics Committee of the Guangzhou Women and Children’s Medical Center (approval number:SFE-KL-46401; Supplementary file 4). All the pregnant women included in this study signed the informed consent form.

scholarly journals Morphological variation and development in a Northern Norwegian role play register

2020 ◽  
Vol 43 (3) ◽  
pp. 289-321 ◽  
Author(s):  
Bror-Magnus S. Strand
Keyword(s):  
Morphological Variation ◽  
Role Play ◽  
Mixed Effect ◽  
Effect Analysis ◽  
Morphological Variables ◽  
Effect Of Age

AbstractThis paper investigates the variation in and development of a set of morphological variables in a register known to be used by Norwegian children when engaging in role play. In this register they code-switch to something resembling the standard or Oslo variety for their in-character role utterances. The variation across variables, subjects, and age is demonstrated and discussed, and although most variables are used in the standard variants, their rates vary. A fitted binomial generalised mixed effect analysis on the most frequent variables shows that the rate of standard variants increases significantly as an effect of age.

Day- and night-time blood pressure elevation in children with higher grades of renal scarring

2003 ◽  
Vol 142 (2) ◽  
pp. 117-122 ◽  
Author(s):  
Ludwig Patzer ◽  
Tomas Seeman ◽  
Carmen Luck ◽  
Elke Wühl ◽  
Jan Janda ◽  
...  
Keyword(s):  
Blood Pressure ◽  
Renal Scarring ◽  
Night Time ◽  
Blood Pressure Elevation ◽  
Pressure Elevation

scholarly journals Chronic intermittent hypoxia in humans during 28 nights results in blood pressure elevation and increased muscle sympathetic nerve activity

2010 ◽  
Vol 299 (3) ◽  
pp. H925-H931 ◽  
Author(s):  
G. S. Gilmartin ◽  
M. Lynch ◽  
R. Tamisier ◽  
J. W. Weiss
Keyword(s):  
Blood Pressure ◽  
Sympathetic Nerve ◽  
Intermittent Hypoxia ◽  
Sympathetic Nerve Activity ◽  
Muscle Sympathetic Nerve Activity ◽  
Chronic Intermittent Hypoxia ◽  
Sympathetic Activation ◽  
Nerve Activity ◽  
Blood Pressure Elevation ◽  
Healthy Humans

Chronic intermittent hypoxia (CIH) is thought to be responsible for the cardiovascular disease associated with obstructive sleep apnea (OSA). Increased sympathetic activation, altered vascular function, and inflammation are all putative mechanisms. We recently reported (Tamisier R, Gilmartin GS, Launois SH, Pepin JL, Nespoulet H, Thomas RJ, Levy P, Weiss JW. J Appl Physiol 107: 17–24, 2009) a new model of CIH in healthy humans that is associated with both increases in blood pressure and augmented peripheral chemosensitivity. We tested the hypothesis that exposure to CIH would also result in augmented muscle sympathetic nerve activity (MSNA) and altered vascular reactivity contributing to blood pressure elevation. We therefore exposed healthy subjects between the ages of 20 and 34 yr ( n = 7) to 9 h of nocturnal intermittent hypoxia for 28 consecutive nights. Cardiovascular and hemodynamic variables were recorded at three time points; MSNA was collected before and after exposure. Diastolic blood pressure (71 ± 1.3 vs. 74 ± 1.7 mmHg, P < 0.01), MSNA [9.94 ± 2.0 to 14.63 ± 1.5 bursts/min ( P < 0.05); 16.89 ± 3.2 to 26.97 ± 3.3 bursts/100 heartbeats (hb) ( P = 0.01)], and forearm vascular resistance (FVR) (35.3 ± 5.8 vs. 55.3 ± 6.5 mmHg·ml−1·min·100 g tissue, P = 0.01) all increased significantly after 4 wk of exposure. Forearm blood flow response following ischemia of 15 min (reactive hyperemia) fell below baseline values after 4 wk, following an initial increase after 2 wk of exposure. From these results we conclude that the increased blood pressure following prolonged exposure to CIH in healthy humans is associated with sympathetic activation and augmented FVR.

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