Effects of noninvasive ambulatory blood pressure measuring devices on blood pressure

Brigden, G; Broadhurst, Paul; Cashman, P. M. M.; Raftery, Edward B.

doi:10.1016/0002-9149(90)91181-5

Cited by 18 publications

(7 citation statements)

References 9 publications

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“…Thus, subjectively, participants found the cuff inflations uncomfortable and disturbing during sleep, but objectively, cuff inflations did not impair sleep quality. Brigden et al [7] performed 24 h intra-arterial BP monitoring, followed by 24 h combined intra-arterial and arm-cuff BP monitoring in 13 hospitalized patients, showing that brachial cuff inflations did not induce pressor responses or influence daytime or night-time BP, consistent with our results based on measurement during normal everyday activity.…”

Section: Discussionsupporting

confidence: 91%

Cuff inflations do not affect night-time blood pressure

Petersen

Theilade²,

Hansen³

et al. 2015

Blood Pressure Monitoring

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Discomfort related to cuff inflation may bias 24 h ambulatory blood pressure (BP) measurements, especially during night-time. We accessed the impact of cuff inflations by comparing 24 h BP recorded with a cuff-less tonometric wrist device and an upper-arm oscillometric cuff device. Fifty-three participants with type 2 diabetes were assigned randomly to four 24-h BP recordings with a cuff (TM2430: visit 1 or 2, and 4) and a tonometric device (BPro: visit 1 or 2, 3, and 4). The mean 24 h systolic BP was significantly higher when measured with the cuff versus the tonometric device (141.6±14.6 vs. 128.3±14.6 mmHg, P≤0.01), as was nocturnal BP (6.7±5.3 vs. 10.3±7.6%, P=0.002). In conclusion, nocturnal BP decline was higher when measured with the cuff device, suggesting that cuff inflations did not increase night-time BP. Further evaluation of the tonometric device using the updated European Society of Hypertension International Protocol revision 2010 is recommended before applying it in daily clinical practice.

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Section: Discussionsupporting

confidence: 91%

Cuff inflations do not affect night-time blood pressure

Petersen

Theilade²,

Hansen³

et al. 2015

Blood Pressure Monitoring

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“…Our data support and extend these ®ndings, by showing that the underestimation of ongoing HR increases linearly with physical activity at the time of measurement. Brigden et al [28] reported underestimation of HR during BP measurements in two out of 13 hypertensive patients only, and concluded that activity was not reduced during cuff measurements. Apart from the small sample size, the contrast with the present and previous studies [26,27] may derive from the fact that the behaviour of intraarterially cannulated patients in a hospital study, does not generalize to the population at large.…”

Section: Discussionmentioning

confidence: 97%

Ambulatory heart rate is underestimated when measured by an ambulatory blood pressure device

Vrijkotte

Geus

2001

Journal of Hypertension

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Objective To test the validity of ambulatory heart rate (HR) assessment with a cuff ambulatory blood pressure (ABP) monitor.Design Cross-instrument comparison of HR measured intermittently by a cuff ABP monitor (SpaceLabs, Redmond, Washington, USA), with HR derived from continuous electrocardiogram (ECG) recordings (1) in a controlled laboratory experiment and (2) during long-term recording in a true naturalistic setting.Participants Six normotensive subjects participated in the laboratory study. A total of 109 male white-collar workers underwent ambulatory monitoring, of which 30 were mildly hypertensive.Methods Four different laboratory conditions (postures: lying, sitting, standing, walking), repeated twice, were used to assess the short-term effects of cuff in¯ation on the HR. To test the actual ambulatory validity, participants simultaneously wore a continuous HR recorder and the ABP monitor from early morning to late evening on 2 workdays and one non-workday. Diary and vertical accelerometery information was used to obtain periods of ®xed posture and (physical) activity across which HR from both devices was compared.Results. Laboratory results showed that the ABP device reliably detected HR during blood pressure measurement, but that this HR was systematically lower than the HR directly before and after the blood pressure measurement. The ambulatory study con®rmed this systematic underestimation of the ongoing HR, but additionally showed that its amount increased when subjects went from sitting to standing to light physical activity (2.9; 4.3 and 9.1 bpm (beats/min), respectively). In spite of this activity-dependent underestimation of HR, the correlation of continuous ECG and intermittent ABP-derived HR was high (median r 0.81). Also, underestimation was not different for normotensives and mild hypertensives.Conclusions A direct effect of cuff in¯ation leads to the underestimation of ongoing HR during cuff-based ABP measurement. Additional underestimation of HR occurs during periods with physical activity, probably due to behavioural freezing during blood pressure measurements. HR underestimation was not affected by hypertensive state. When its limitations are taken into account, ABP-derived ambulatory HR can be considered a reliable and valid measure.

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“…Previous studies have established that nocturnal pressure measurement at 15-min intervals does not alter the sleep pattern or the nocturnal BP profile [4]. CDI is somewhat disruptive to sleep and often results in partial awakening of the subject.…”

Section: Discussionmentioning

confidence: 99%