Validation of an automatic device for the self-measurement of blood pressure in sitting and supine positions according to the ANSI/AAMI/ISO81060-2

Kuwabara, Mitsuo; Harada, Kanako; Hishiki, Yukiko; Kario, Kazuomi

doi:10.1097/mbp.0000000000000368

Cited by 11 publications

(8 citation statements)

References 19 publications

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“…The HEM‐9700T is an automatic upper arm‐type device for the self‐measurement of BP. 10 Both the wrist device and the upper arm‐device have an automatic BP measurement function during sleep.…”

Section: Methodsmentioning

confidence: 99%

Reproducibility of nighttime home blood pressure measured by a wrist‐type nocturnal home blood pressure monitoring device

Tomitani

Kanegae

Kario

2021

J of Clinical Hypertension

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The authors investigated the reproducibility of nighttime home blood pressure (BP) measured by a wrist‐type BP monitoring device. Forty‐six hypertensive patients (mean 69.0±11.6 years, 56.5% male) self‐measured their nighttime BP hourly using simultaneously worn wrist‐type and upper arm‐type nocturnal home BP monitoring devices at home on two consecutive nights. Using the average 7.4±1.3 measurements on the first night and the average 7.0 ± 1.8 measurements on the second night, the authors assessed the reliability and the reproducibility of nighttime BP measured on the two nights. The difference between nights in systolic BP (SBP) measured by the wrist‐device was not significant (1.6±7.0 mmHg, p = .124), while the difference in diastolic BP (DBP) was marginally significant (1.4±4.9 mmHg, p = .050). The intraclass correlation coefficients (ICCs) for agreement between nights were high both in SBP and DBP average (SBP: 0.835, DBP: 0.804). Averaging only three points of SBP resulted in lower ICC values, but still indicated good correlations (ICC > 0.6). On the other hand, the correlations of the standard deviation and average real variability of SBP between nights were low, with ICCs of 0.220 and 0.436, respectively. In conclusion, the average SBP values measured on the first night were reliable even when averaging only three readings. The reproducibility of nighttime BP variability seemed inferior to that of BP average; it might be better to measure nighttime BP over multiple nights to assess BP variability. However, this hypothesis needs verification in other study population. In addition, our study population had well‐controlled BP, which limits the generalizability of this findings to all hypertensive patients.

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Section: Methodsmentioning

confidence: 99%

Reproducibility of nighttime home blood pressure measured by a wrist‐type nocturnal home blood pressure monitoring device

Tomitani

Kanegae

Kario

2021

J of Clinical Hypertension

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“…This affects the detecting feature points and calculating feature values of surge BP. Second, we found in our previous study that the BP measured by the wrist-type device in the supine position tend to be approximately 5 mmHg higher than using the auscultation method at the upper arm in the supine position [30]. Therefore, the BbB BP values calibrated by the device in the present study have a potential error in the BP level.…”

Section: Discussionmentioning

confidence: 57%

Automatic detection algorithm for establishing standard to identify “surge blood pressure”

Kokubo

Kuwabara

Nakajima

et al. 2020

Med Biol Eng Comput

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Blood pressure (BP) variability is one of the important risk factors of cardiovascular disease (CVD). “Surge BP,” which represents short-term BP variability, is defined as pathological exaggerated BP increase capable of triggering cardiovascular events. Surge BP is effectively evaluated by our new BP monitoring device. To the best of our knowledge, we are the first to develop an algorithm for the automatic detection of surge BP from continuous “beat-by-beat” (BbB) BP measurements. It enables clinicians to save significant time identifying surge BP in big data from their patients’ continuous BbB BP measurements. A total of 94 subjects (74 males and 20 females) participated in our study to develop the surge BP detection algorithm, resulting in a total of 3272 surges collected from the study subjects. The surge BP detection algorithm is a simple classification model based on supervised learning which formulates shape of surge BP as detection rules. Surge BP identified with our algorithm was evaluated against surge BP manually labeled by experts with 5-fold cross validation. The recall and precision of the algorithm were 0.90 and 0.64, respectively. Processing time on each subject was 11.0 ± 4.7 s. Our algorithm is adequate for use in clinical practice and will be helpful in efforts to better understand this unique aspect of the onset of CVD.

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“…The HEM‐9700T (Omron Healthcare, Kyoto, Japan) is an automatic upper arm‐type device for the self‐measurement of BP, and the validation study of this device was successfully conducted according to the ANSI/AAMI/ISO81060‐2:2013 guidelines 13 . The HEM‐9700T with a standard cuff can adapt to upper arm circumferences of 22‐32 cm.…”

Section: Methodsmentioning

confidence: 99%

“…12 The HEM-9700T (Omron Healthcare, Kyoto, Japan) is an automatic upper arm-type device for the self-measurement of BP, and the validation study of this device was successfully conducted according to the ANSI/AAMI/ISO81060-2:2013 guidelines. 13 The HEM-9700T with a standard cuff can adapt to upper arm circumferences of 22-32 cm. Both the NightView wrist device and the upper arm device can be preset at bedtime to measure the wearer's BP during sleep for nighttime automatic measurements.…”

Section: Bp Measurement Devicesmentioning

confidence: 99%

Simultaneous self‐monitoring comparison of a supine algorithm‐equipped wrist nocturnal home blood pressure monitoring device with an upper arm device

Kario

Tomitani

Iwashita

et al. 2021

J of Clinical Hypertension

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A nocturnal home blood pressure (BP) monitoring device that measures nighttime BP levels accurately with less sleep disturbance is needed for the 24‐h management of hypertension. Here we conducted the first comparison study of simultaneous self‐monitoring by both a supine position algorithm‐equipped wrist nocturnal home BP monitoring device, the HEM‐9601T (NightView; Omron Healthcare) with a similar upper arm device, the HEM‐9700T (Omron Healthcare) in 50 hypertensive patients (mean age 68.9 ± 11.3 years). Both devices were worn on the same non‐dominant arm during sleep over two nights. The patients self‐measured their nighttime BP by starting nocturnal measurement mode just before going to bed. In total, 694 paired measurements were obtained during two nights (7.2 ± 1.5 measurements per night), and the mean differences (±SD) in systolic BP between the devices was 0.2 ± 10.2 mmHg (p = .563), with good agreement. In the comparison of nighttime BP indices, the difference in average SBP at 2:00, 3:00, and 4:00 AM and the average SBP of 1‐h interval measurements was −0.5 ± 5.5 mmHg (p = .337), with good agreement. The HEM‐9601T substantially reduced sleep disturbance compared to the upper arm‐type device. The newly developed HEM‐9601T (NightView) can thus accurately measure BP during sleep without reducing the wearer's sleep quality.

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Validation of an automatic device for the self-measurement of blood pressure in sitting and supine positions according to the ANSI/AAMI/ISO81060-2

Cited by 11 publications

References 19 publications

Reproducibility of nighttime home blood pressure measured by a wrist‐type nocturnal home blood pressure monitoring device

Reproducibility of nighttime home blood pressure measured by a wrist‐type nocturnal home blood pressure monitoring device

Automatic detection algorithm for establishing standard to identify “surge blood pressure”

Simultaneous self‐monitoring comparison of a supine algorithm‐equipped wrist nocturnal home blood pressure monitoring device with an upper arm device

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