The British Hypertension Society protocol for the evaluation of automated and semi-automated blood pressure measuring devices with special reference to ambulatory systems

O’Brien, Eoin; Petrie, J C; Littler, W. A.; Swiet, Michael de; Padfield, P. L.; O’Malley, K; Jamieson, M. J.; Altman, Douglas G.; Bland, Martin; Atkins, Neil

doi:10.1097/00004872-199007000-00004

Cited by 669 publications

(415 citation statements)

References 16 publications

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“…16 A mercury column sphygmomanometer (Baumanometer, standby model 0661-0250) was utilized for measurement of the BP, since this is the standard method to which other noninvasive devices of BP measurement are validated. 17 The HR was recorded on an electrocardiographic monitor. The respiratory rate and the end-tidal pressure of CO 2 (ETPCO 2 ) were continuously monitored with a Datex Normacap infrared capnometer (Finland).…”

Section: Methodsmentioning

confidence: 99%

Nonspecific dizziness: frequency of supine hypertension associated with hypotensive reactions on head-up tilt

et al. 2005

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The clinical syndrome of supine hypertension associated with orthostatic hypotension (OH) in given individuals is recognized by specialists, but is underdiagnosed in the community. The objective of this study was to assess supine hypertension associated with hypotensive reactions on head-up tilt (SH-HRT) among patients evaluated for nonspecific dizziness. Consecutive patients with nonspecific dizziness were studied with a 10-min supine 30-min head-up tilt test. Supine hypertension (SH) was diagnosed when supine systolic blood pressure (SBP) was X140 mmHg and/or supine diastolic blood pressure (DBP) was X90 mmHg. Hypotensive reactions on tilt (HRT) were diagnosed when SBP decreased by X30 mmHg on tilt and/or DBP decreased by X15 mmHg. Of 430 patients tested, 42 (9.8%) had SH-HRT. The median age was 67 years; 37 had a pretest diagnosis of hypertension, with treatment.The median supine BP was 162/90 mmHg; the median nadir BP on tilt was 118/78 mmHg. Four SH-HRT patterns were recognized: (I) SH with typical neurogenic OH (n ¼ 6), (II) SH with vasovagal reaction on tilt (n ¼ 4), (III) SH with sustained HRT (n ¼ 28), and (IV) SH with mixed orthostatic-vasovagal reaction on tilt (n ¼ 4). Dizziness on tilt occurred in 25% of patients category III (SH with sustained HRT), while appearing universally in other SH-HRT patterns. In conclusion, nonspecific dizziness may be the chief complaint in patients with SH-HRT, a disorder often unrecognized by clinicians. Different patterns of SH-HRT on HUTT may reflect different aberrations in cardiovascular homeostasis and may require differentiated management strategies.

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Section: Methodsmentioning

confidence: 99%

Nonspecific dizziness: frequency of supine hypertension associated with hypotensive reactions on head-up tilt

et al. 2005

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“…Subjects were selected from a general practice database (AAHMeditel) in three equal groups with previous systolic BPs in the ranges shown in Table 1. These are the ranges given in the BHS validation protocol, 7,8 though not as a requirement and not forming any part of the calculations. Having selected equal numbers of patients in this way, they were then put into a single group for the purposes of the investigation and their previous BPs were not used in any subsequent calculations.…”

Section: Methodsmentioning

confidence: 99%

“…One of two observers carried out the tests but since observer error was not an issue, it was not necessary to use the schedule of observer assessment described in instrument validation tests. 7,8 Means of systolic and diastolic values using 'M' and 'L' cuffs were calculated and the differences between these means compared by paired sample ttests and 95% confidence intervals using SPSS.…”

Section: Methodsmentioning

confidence: 99%

“…4 Current official British and United States recommendations are that a 12-cm cuff is suitable for all adult arms. 5,6 The British Hypertension Society's (BHS) protocol for the validation of sphygmomanometers, 7,8 applying mainly to ambulatory devices, uses the BSI recommendation that the bladder of the cuff should encircle 80% of the arm circumference and that the bladder should be changed for obese arms. The American Advancement of Medical Instrumentation (AAMI) document, 6 though not published in a scientific journal, makes similar recommendations.…”

Section: Introductionmentioning

confidence: 99%

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Evaluation of normal and large sphygmomanometer cuffs using the Omron 705CP

et al. 2001

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Sphygmomanometers are usually sold with a single cuff though some are supplied with a short cuff as standard and offer a longer one for larger arms. However, data on the differences in measurements taken with different cuffs applied to different sized arms are conflicting and this study set out to investigate the difference between those taken with 'normal' and 'large' cuffs in arms 28 cm or more in circumference. We avoided observer error by using a semi-automatic digital sphygmomanometer, the Omron 705CP. The 22 subjects employed were selected from one general practice as having a range of previous office blood pressures and a variety of arm sizes above 28 cm in circumference. Omron 'normal' and 'large'

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“…1 Therefore, there is a need for potential purchasers to choose among the available devices on the basis of reliable validation data. 2 In 1990, the British Hypertension Society (BHS) published an evaluation protocol for the assessment of the accuracy of automated and semiautomated devices, 3 which was revised in 1993. 4 These protocols provide standards for the validation procedures that allow for the comparison of different devices with one another.…”

Section: Introductionmentioning

confidence: 99%

Validation of TONOPORT V blood-pressure measuring monitor in adults

2005

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A new automatic blood-pressure (BP) measuring device TONOPORT V was evaluated according to the International Protocol for Validation of Blood Pressure Measuring Devices in adults by the European Society of Hypertension. BP values measured by the TONOPORT V were compared to BP readings from two independent observers. A total of 33 patients (20 males, 13 females) provided systolic and diastolic BP readings in the normotensive, borderline hypertensive, and hypertensive range. Their age varied between 30 and 83 years, and their arm circumference between 23 and 36 cm. The device showed a mean (7s.d.) deviation from observer measurements of À0.7 (4.6) mmHg for systolic and À0.8 (4.4) mmHg for diastolic BP. The accuracy of the device did not vary according to BP values or other patient characteristics. The device passed all phases of the protocol and can be recommended following the regulation rules of the European Society of Hypertension.

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The British Hypertension Society protocol for the evaluation of automated and semi-automated blood pressure measuring devices with special reference to ambulatory systems

Cited by 669 publications

References 16 publications

Nonspecific dizziness: frequency of supine hypertension associated with hypotensive reactions on head-up tilt

Nonspecific dizziness: frequency of supine hypertension associated with hypotensive reactions on head-up tilt

Evaluation of normal and large sphygmomanometer cuffs using the Omron 705CP

Validation of TONOPORT V blood-pressure measuring monitor in adults

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