Oscillometric blood pressure: a review for clinicians

Alpert, Bruce S.; Quinn, David; Gallick, David

doi:10.1016/j.jash.2014.08.014

Cited by 181 publications

(103 citation statements)

References 8 publications

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“…Empirical methods are used, similar to cuff-based devices that use fixed-ratio or similar methods to compute brachial BP from an arm oscillogram ( 6 , 7 ). In the fixed-ratio method, mean BP is first obtained as the cuff pressure at which the oscillogram is maximal, and systolic and diastolic BP are then determined as the cuff pressure at which the oscillogram is some fixed ratio of its maximal value.…”

Section: Methodsmentioning

confidence: 99%

“…We proposed to extend the oscillometric principle, which is the basis of most automatic cuff-based BP measurement devices ( 6 , 7 ), for cuff-less BP measurement using a smartphone. In this scenario, the user serves as the actuator (instead of the cuff) by pressing her/his finger against the phone to vary the external pressure of the underlying artery, whereas the phone serves as the sensor (rather than the cuff) to measure the resulting variable-amplitude blood volume variations or oscillations and applied pressure.…”

Section: Introductionmentioning

confidence: 99%

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Smartphone-based blood pressure monitoring via the oscillometric finger-pressing method

et al. 2018

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High blood pressure (BP) is a major cardiovascular risk factor that is treatable, yet hypertension awareness and control rates are low. Ubiquitous BP monitoring technology could improve hypertension management, but existing devices require an inflatable cuff and are not compatible with such anytime, anywhere measurement of BP. We extended the oscillometric principle, which is used by most automatic cuff devices, to develop a cuff-less BP monitoring device using a smartphone. As the user presses her/his finger against the smartphone, the external pressure of the underlying artery is steadily increased while the phone measures the applied pressure and resulting variable-amplitude blood volume oscillations. A smartphone application provides visual feedback to guide the amount of pressure applied over time via the finger pressing and computes systolic and diastolic BP from the measurements. We prospectively tested the smartphone-based device for real-time BP monitoring in human subjects to evaluate usability (n = 30) and accuracy against a standard automatic cuff-based device (n = 32). We likewise tested a finger cuff device, which uses the volume-clamp method of BP detection. About 90% of the users learned the finger actuation required by the smartphone-based device after one or two practice trials. The device yielded bias and precision errors of 3.3 and 8.8 mmHg for systolic BP and −5.6 and 7.7 mmHg for diastolic BP over a 40 to 50 mmHg range of BP. These errors were comparable to the finger cuff device. Cuff-less and calibration-free monitoring of systolic and diastolic BP may be feasible via a smartphone.

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Section: Methodsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Smartphone-based blood pressure monitoring via the oscillometric finger-pressing method

et al. 2018

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“…La medida de la PANI se basa en la oclusión de una arteria por un manguito presurizado y después la medida de las oscilaciones de la presión del manguito o la presión a la cual reaparece el flujo en la arteria mientras se deshincha el manguito 127 . Existen varias técnicas para determinar la PA mediante este método:…”

Section: Monitorización No Invasiva (Pani)unclassified

Monitorización intraoperatoria del bloqueo neuromuscular y la presión arterial con un solo dispositivo (TOF-Cuff): estudio comparativo con la mecanomiografía y la presión arterial invasiva

Ruiz

Cayuela

Montes

et al. 2017

Revista Española de Anestesiología y Reanimación

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“…AOBP devices use the oscillometric technique to estimate BP -systolic and diastolic BP are derived indirectly through algorithm-based analysis of oscillometric waveforms [4]. Many of the leading oscillometric devices have undergone extensive testing to validate BP measurements and, on the basis of this testing, the proprietary algorithms specific to each device have been refined to optimize accuracy.…”

Section: Introductionmentioning

confidence: 99%

Comparability of two commonly used automated office blood pressure devices in the severely obese

Padwal

Majumdar²

2016

Blood Pressure Monitoring

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The accuracy of automated office blood pressure (BP) devices in severely obese individuals is unknown. In an exploratory study, we compared standardized BP measurements using a BpTRU device with those taken using a WatchBP Office monitor. Paired t-tests, Bland-Altman plots, and Pearson's correlations were used to compare devices. A total of 62 patients were analyzed: their mean age was 39.5±9.3 years and their mean BMI was 45.1±5.7 kg/m. Fifty-five patients (89%) were women and 21 (34%) had a diagnosis of hypertension. The mean BpTRU values were 117.2±12.7/76.7±9.7 mmHg and the mean WatchBP measurements were 126.6±13.8/79.7±10.9 mmHg [difference of -9.4±11.6 for systolic (P<0.0001) and -3.0±7.7 mmHg for diastolic (P=0.003)]. A Bland-Altman plot for systolic BP showed considerable variability. Only four (6.5%) patients had hypertension (>140/90 mmHg) according to BpTRU versus 15 (24%) according to WatchBP. In conclusion, the mean BP measurements taken using two commonly used automated office devices differed markedly and by a clinically important magnitude. These data indicate the need for formal validation of these devices specifically in severely obese individuals.

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Oscillometric blood pressure: a review for clinicians

Cited by 181 publications

References 8 publications

Smartphone-based blood pressure monitoring via the oscillometric finger-pressing method

Smartphone-based blood pressure monitoring via the oscillometric finger-pressing method

Monitorización intraoperatoria del bloqueo neuromuscular y la presión arterial con un solo dispositivo (TOF-Cuff): estudio comparativo con la mecanomiografía y la presión arterial invasiva

Comparability of two commonly used automated office blood pressure devices in the severely obese

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