The Finapres 2300e finger cuff

Jones, R. D. M.; Kornberg, Jennifer; Roulson, C. J.; Visram, A. R.; Irwin, Michael G.

doi:10.1111/j.1365-2044.1993.tb07129.x

Cited by 28 publications

(5 citation statements)

References 13 publications

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“…The large interindividual variability may partly explain the wide range of biases (underestimation of intra‐arterial pressure in some patients and overestimation in others). It may reflect both technical, physiological and pathological influences (disease states affecting peripheral blood flow, presence of a pressure gradient) [ 6, 15, 26]. A study [ 6] compared the accuracy between different cuff sizes, cuff positions and choice of finger and showed that the thumb gives the most accurate results (correlation coefficients of 0.95 for systolic and 0.88 for diastolic blood pressure vs values obtained invasively).…”

Section: Resultsmentioning

confidence: 99%

Evaluation of noninvasive blood pressure recording by photoplethysmography in clinical studies using angiotensin challenges

Buclin¹,

Csajka²,

Brunner

et al. 1999

Brit J Clinical Pharma

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Aims Continuous noninvasive blood pressure measurement by photoplethysmography has been regularly used in the experimental paradigm of angiotensin challenges, applied to the phase I clinical testing of angiotensin-converting enzyme inhibitors and angiotensin receptor antagonists. This work aims to evaluate the performance of this measurement method, in terms of reliability, reproducibility and dependence on technical settings. Methods Data have been gathered from 13 clinical studies on antihypertensive drugs, using the FinapresA device for measuring the response to exogenous angiotensin challenges. The agreement between simultaneous recordings at different fingers and the influence of the reading method are assessed. A literature review addresses the question of the concordance between results obtained noninvasively and through arterial cannulation. Results The relative precision of blood pressure monitoring by photoplethysmography allows reproducible determination of angiotensin-induced blood pressure peaks (agreement limits for systolic and diastolic peaks: 12 and 6 mmHg respectively). The reading method influences the results to a similar extent. As compared with blood pressure measured intra-arterially, the difference is usually within limits of clinical acceptability. Conclusions In the context of phase I studies using the angiotensin challenges methodology, the reliability and reproducibility of noninvasive blood pressure measurement appear satisfactory, despite the technical limitations of this method. The impact of selected changes in the settings and reading methods is limited.

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Section: Resultsmentioning

confidence: 99%

Evaluation of noninvasive blood pressure recording by photoplethysmography in clinical studies using angiotensin challenges

Buclin¹,

Csajka²,

Brunner

et al. 1999

Brit J Clinical Pharma

View full text Add to dashboard Cite

show abstract

“…However, some situation-or procedurerelated errors are not uncommon [13,14]. For example, patients with acrocyanosis are less suitable for Finapres or Portapres recordings.…”

Section: Resultsmentioning

confidence: 99%

“…Lights off 2300 to 0700 h. Black dots, first recording; open dots, second recording. of procedure-related errors have been identified [13,14]. Cold fingers and malapplication of the cuff may cause important errors and reduce repeatability.…”

Section: Discussionmentioning

confidence: 99%

Reproducibility of twenty-four-hour finger arterial blood pressure, variability and systemic hemodynamics

Voogel

Montfrans

1997

Journal of Hypertension

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“…Thus, the excessively small cuff was not appropriate for arterial elasticity analyses using the AC signal of PPG. Meanwhile, Jones et al claimed that the oversize cuff was less accurate for assessments of PPG 35. Moreover, if the oversize cuff was loosely applied to a finger, the P c could have been ineffectively transmitted to the finger, resulting in an overestimation of the mean blood pressure.…”

Section: Discussionmentioning

confidence: 99%

Evaluation of vascular wall elasticity of human digital arteries using alternating current-signal photoplethysmography

Uangpairoj¹,

Shibata²

2013

VHRM

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PurposeA simple method of estimating arterial elasticity in the human finger using a volume-oscillometric technique with photoplethysmography was principally studied under the various effects of age, sex, and cold-stress stimulation for testing the capability of using this technique in arterial elasticity analysis.MethodsAmplitude variations in the alternating current signal of the photoplethysmograph during a continuous change in transmural pressure were analyzed to obtain the blood pressure and the transmural pressure–relative volume difference relationship of the arteries. We first tested the effect of the occluding cuff size on the arterial elasticity analysis in eight subjects (ages 20–45 years) to obtain a suitable cuff size, resulting in the selection of a middle cuff with a 22 mm diameter. Blood pressure and arterial elasticity were measured in six groups of subjects separated into three age-groups of women and men (ages 20–25, 32–45, and over 50 years) for testing the effect of age and sex. Twelve subjects (ages 20–25 years) also had their blood pressure and arterial elasticity measured in three conditions under the influence of the cold-stress stimulation.ResultsAge, sex, and cold-stress stimulation had an impact on mean blood pressure (P < 0.0005, 0.025), whereas pulse pressure and heart rate were statistically unchanged by those factors. Furthermore, an advanced age (over 50 years) was found to induce an increase in relative volume difference values (P < 0.025) and upward shifting of the transmural pressure–relative volume difference relationships, whereas sex, level of mean blood pressure, and cold-stress stimulation had no influence on these forms of the index.ConclusionThis study showed the usefulness of the relative volume difference as being a mean blood pressure-independent indicator for changes in arterial elasticity.

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The Finapres 2300e finger cuff

Cited by 28 publications

References 13 publications

Evaluation of noninvasive blood pressure recording by photoplethysmography in clinical studies using angiotensin challenges

Evaluation of noninvasive blood pressure recording by photoplethysmography in clinical studies using angiotensin challenges

Reproducibility of twenty-four-hour finger arterial blood pressure, variability and systemic hemodynamics

Evaluation of vascular wall elasticity of human digital arteries using alternating current-signal photoplethysmography

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