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Blood Pressure Monitoring Jun 2019In longitudinal research studies with follow-up examinations, the devices used to measure phenotypes may change over time. When a device change occurs, the two devices... (Comparative Study)
Comparative Study
BACKGROUND
In longitudinal research studies with follow-up examinations, the devices used to measure phenotypes may change over time. When a device change occurs, the two devices should be calibrated to each other to ensure that measurements are comparable. This paper details the Jackson Heart Study (JHS) blood pressure (BP) comparability study.
PARTICIPANTS AND METHODS
During its second clinic exam (2005-2008), the JHS switched from a random-zero sphygmomanometer (RZS) BP measurement device to an oscillometric device (OD). During this exam, BP measurements from both an RZS and an OD were taken simultaneously in 2117 participants for the purpose of calibration. Five methods for calibrating systolic BP (SBP) and diastolic BP (DBP) were considered: ignoring the change, ordinary least squares regression, adding the average difference, Deming regression, and robust regression.
RESULTS
Using the RZS and OD, the mean (SD) SBP was 125.5 (19.2) and 126.5 (19.9), respectively, and the mean (SD) DBP was 76.4 (10.6) and 74.0 (11.0), respectively. The correlation between RZS and the OD was 0.90 for SBP and 0.80 for DBP. The prevalence of high BP and hypertension and associations with albuminuria were similar when applying each of the five calibration methods. Robust regression was chosen for calibration, giving the following equations:(Equation is included in full-text article.)These equations had a higher R statistic than using calibration equations from the Coronary Artery Risk Development in Young Adults Study and the Heinz Nixdorf Recall Study.
CONCLUSIONS
The JHS BP data have been calibrated using the above equations for use in future analyses.
Topics: Adult; Albuminuria; Blood Pressure; Blood Pressure Determination; Calibration; Female; Humans; Hypertension; Longitudinal Studies; Male; Middle Aged; Oscillometry; Prevalence; Sphygmomanometers; Young Adult
PubMed: 30998553
DOI: 10.1097/MBP.0000000000000379 -
Journal of Clinical Hypertension... Apr 2020Most automated sphygmomanometers use oscillometric algorithms. Motion, either patient-based or environmental, will affect the ability of a device to record an accurate... (Review)
Review
Most automated sphygmomanometers use oscillometric algorithms. Motion, either patient-based or environmental, will affect the ability of a device to record an accurate blood pressure (BP). Members of the Association for the Advancement of Medical Instrumentation (AAMI) Sphygmomanometer Committee have been studying this problem for more than a decade. The AAMI TIR44 was the first publication to address the challenges of motion tolerance. The concepts described in TIR44 have led to the development of a draft of ISO 81060-4, a new standard for testing devices for which the manufacturer wishes to claim motion tolerance. The current ISO 81060-2 addresses both stress testing and 24-hour ambulatory BP monitoring. Recent publications have reported on testing of devices in response to voluntary and involuntary patient motion. The ISO 81060-4 will address testing in the presence of patient transport by ground, fixed-wing, and rotary (helicopter) ambulances. The protocol will utilize noise profiles recorded under those three conditions. The profiles will be digitally stored on a library with free access. The proposed testing will be performed using patient simulators introducing the noise library files into known BP oscillometric envelopes. The specifications of the data capture and playback devices are specified, as is the evaluation statistical testing. The authors expect that the final draft will be published in 2020.
Topics: Artifacts; Blood Pressure; Blood Pressure Determination; Humans; Hypertension; Sphygmomanometers
PubMed: 32248602
DOI: 10.1111/jch.13851 -
BMC Cardiovascular Disorders Nov 2021The accurate and independent measurement of blood pressure (BP) by patients is essential for home BP monitoring (HBPM) and determining the quality of hypertension (HTN)...
BACKGROUND
The accurate and independent measurement of blood pressure (BP) by patients is essential for home BP monitoring (HBPM) and determining the quality of hypertension (HTN) control. This study aimed to evaluate the BP self-measurement techniques of hypertensive patients and their accuracy in accordance with established guidelines. We sought to identify the common errors that patients make and suggest improvements that can be implemented in the primary healthcare setting to increase the reliability of HBPM conducted by hypertensive patients.
METHODS
One hundred patients diagnosed with HTN completed a questionnaire inquiring about their health and demographic data and BP monitoring practices. Patients were then observed and filmed while measuring their BP on their own devices in five primary healthcare centres in Kraków, Poland. The correctness of their techniques was assessed in accordance with the European Society of Hypertension guidelines on HBPM.
RESULTS
Only 3% of patients measured their BP without error; 60% made three or more errors. The most frequent error, made by 76% of subjects, was incorrect sphygmomanometer cuff placement (above or below heart level, or/and the indicator mark was not aligned with the brachial artery). Regarding patients' previous instruction for the correct use of their devices, 36% of patients referred to their monitor's user manual, 22% did not receive any prior assistance, and only 29% were adequately counselled by physicians on how to measure their BP correctly.
CONCLUSIONS
Our findings suggest that primary healthcare physicians and their personnel often do not adequately instruct patients on how to measure their BP correctly. Therefore, healthcare systems must provide patients with more adequate training and reference materials on the best practices of BP monitoring.
Topics: Adult; Aged; Aged, 80 and over; Blood Pressure Monitoring, Ambulatory; Cross-Sectional Studies; Diagnostic Errors; Female; Humans; Hypertension; Male; Middle Aged; Reproducibility of Results; Self Care; Sphygmomanometers; Surveys and Questionnaires
PubMed: 34772348
DOI: 10.1186/s12872-021-02351-5 -
Hypertension (Dallas, Tex. : 1979) May 2023To identify and summarize the global research literature on validation of automated noninvasive blood pressure measurement devices (BPMDs) with upper arm cuff, develop a... (Review)
Review
BACKGROUND
To identify and summarize the global research literature on validation of automated noninvasive blood pressure measurement devices (BPMDs) with upper arm cuff, develop a repository of validated BPMDs in compliance with the 2020 World Health Organization technical specifications, and identify challenges and gaps in evidence base on validated BPMDs.
METHODS
A scoping review was conducted. Primary research validating BPMDs complying with the 2020 World Health Organization technical specifications (ie, semiautomated/automated noninvasive devices with upper arm cuff), published in English between January 2000 and December 2021, was included. We searched MEDLINE, Web of Science, Scopus, EMBASE, CINAHL, CENTRAL, ProQuest and the dabl website.
RESULTS
We included 269 studies validating 251 BPMDs across 89 manufacturers. Omron (29%), Microlife (10%), and A&D Company (8%) were the top 3 manufacturers. The 3 most frequently used validation protocols were the European Society of Hypertension-international protocol 2002 (27%), European Society of Hypertension-international protocol 2010 (25%), and modified British Hypertension Society protocol 1993 (16%), respectively. Nearly 45% of the validated BPMDs were intended for use in clinical settings, 38% were for home or self-measurement use, and 48% were for general adults. Most studies reported that BPMDs passed the validation criteria. There was inadequate reporting across studies, especially pertaining to validation settings.
CONCLUSIONS
Most BPMDs fulfilled the validation criteria. However, there are considerable gaps in BPMD research in terms of geographical representation, including specific target populations and diseases/conditions, and a range of arm circumferences. Additionally, a potential strategy is required to accelerate the adoption of the Association for the Advancement of Medical Instrumentation (AAMI)/European Society of Hypertension/International Organization for Standardization Universal Standard (International Organization for Standardization 81060-2:2018) for BPMD validation.
Topics: Adult; Humans; Blood Pressure; Blood Pressure Determination; Sphygmomanometers; Hypertension; World Health Organization; Blood Pressure Monitors
PubMed: 36912176
DOI: 10.1161/HYPERTENSIONAHA.122.20425 -
Revista Medica de Chile Feb 2018Background A correct blood pressure (BP) measurement is essential for the diagnosis and control of high BP. (Comparative Study)
Comparative Study
UNLABELLED
Background A correct blood pressure (BP) measurement is essential for the diagnosis and control of high BP.
AIM
To evaluate the agreement and repeatability of BP measurements with the OMRON HEM-7320-LA device compared to a mercury sphygmomanometer.
MATERIAL AND METHODS
A cross-sectional study comparing BP measurements made by two randomly selected trained nurses and an automatic oscillometric device. The mercurial sphygmomanometer was connected to the automated device via a "T" type connector and a dual-head stethoscope was used, allowing simultaneous measurements. The results were analyzed with one-factor analysis of variance, Bland-Altman's test, repeatability coefficient (RC), and intra-class correlation coefficient (ICC).
RESULTS
Forty-nine participants aged 56 ± 19 years were included. Nineteen had hypertension (38%). We did not observe a significant difference in either systolic (SBP) or diastolic blood pressure (DBP) pressure measurements between the observers and the device. The mean difference was -0.09 mmHg (95% confidence intervals (CI)-0.9 to 0.7) for SBP and -0.9 mmHg (95% CI -1.7 to -0.13) for DBP. The RC for SBP (6.2, 5.2 and 5.8 mmHg) and DBP (4.7, 4.2 y 5.2 mmHg) was similar between the observers and the device. The ICC for SBP was 0.990 (95% CI 0.983 to 0.995, p < 0.01) and 0.986 (95% CI 0.977 to 0.991, p < 0.01) for DBP.
CONCLUSIONS
There was a high level of agreement and similar measurement repeatability in the measurements performed by the automatic device and the mercurial sphygmomanometer. No differences in BP measurements were observed.
Topics: Blood Pressure Determination; Blood Pressure Monitors; Cross-Sectional Studies; Female; Humans; Hypertension; Male; Middle Aged; Reproducibility of Results
PubMed: 29999155
DOI: 10.4067/s0034-98872018000200190 -
Clinical Techniques in Small Animal... Aug 2000Veterinary care has continued to advance by implementing more of the equipment and techniques that are commonly used in human medicine. This includes the placement of... (Review)
Review
Veterinary care has continued to advance by implementing more of the equipment and techniques that are commonly used in human medicine. This includes the placement of arterial catheters and pulmonary artery catheters and continuous monitoring of arterial pressure, central venous pressure, and pulmonary artery pressure. This article describes the technique for placement of appropriate catheters, the equipment that is needed, and the waveforms that are obtained when measuring direct arterial pressures, central venous pressures, and pulmonary arterial pressures.
Topics: Animals; Blood Pressure Monitoring, Ambulatory; Blood Pressure Monitors; Dogs; Equipment Design; Humans
PubMed: 11109712
DOI: 10.1053/svms.2000.18292 -
Anaesthesia Apr 2013
Topics: Air Ambulances; Blood Pressure; Blood Pressure Monitors; Humans; Monitoring, Ambulatory
PubMed: 23488845
DOI: 10.1111/anae.12200 -
The Netherlands Journal of Medicine Oct 2003Devices measuring blood pressure oscillometrically at the wrist are becoming more and more popular. These devices are small, easy to handle and can measure blood... (Review)
Review
Devices measuring blood pressure oscillometrically at the wrist are becoming more and more popular. These devices are small, easy to handle and can measure blood pressure without the need to undress. However, few of the wrist devices have been validated properly, i.e. according to internationally accepted protocols. In this article current literature on wrist blood pressure measuring devices is presented. The importance of positioning the wrist at heart level for accurate measurements is stressed.
Topics: Automation; Blood Pressure Determination; Equipment Failure Analysis; Humans; Hypertension; Oscillometry; Self Care; Sphygmomanometers; Wrist
PubMed: 14708908
DOI: No ID Found -
Journal of the Royal Society of Medicine Mar 2005
Topics: Blood Pressure Determination; Humans; Hypertension; Mercury; Sphygmomanometers
PubMed: 15738548
DOI: 10.1177/014107680509800301 -
Biomedical Engineering Online May 2018Worldwide, at least 200 million people are affected by peripheral vascular diseases (PVDs), including peripheral arterial disease (PAD), chronic venous insufficiency... (Review)
Review
BACKGROUND
Worldwide, at least 200 million people are affected by peripheral vascular diseases (PVDs), including peripheral arterial disease (PAD), chronic venous insufficiency (CVI) and deep vein thrombosis (DVT). The high prevalence and serious consequences of PVDs have led to the development of several diagnostic tools and clinical guidelines to assist timely diagnosis and patient management. Given the increasing number of diagnostic methods available, a comprehensive review of available technologies is timely in order to understand their limitations and direct future development effort.
MAIN BODY
This paper reviews the available diagnostic methods for PAD, CVI, and DVT with a focus on non-invasive modalities. Each method is critically evaluated in terms of sensitivity, specificity, accuracy, ease of use, procedure time duration, and training requirements where applicable.
CONCLUSION
This review emphasizes the limitations of existing methods, highlighting a latent need for the development of new non-invasive, efficient diagnostic methods. Some newly emerging technologies are identified, in particular wearable sensors, which demonstrate considerable potential to address the need for simple, cost-effective, accurate and timely diagnosis of PVDs.
Topics: Blood Pressure Monitors; Diagnostic Techniques and Procedures; Humans; Lower Extremity; Peripheral Vascular Diseases; Plethysmography; Ultrasonography, Doppler
PubMed: 29751811
DOI: 10.1186/s12938-018-0494-4