Blood pressure measurement using oscillometric finger cuffs in children and young adults

In the early part of the century, when adrenaline first became widely available, it was used in an uncontrolled manner and cases of ischaemic necrosis led to it falling into disfavour for hand surgery. Local anaesthesia with adrenaline is currently widely used for palmar and dorsal hand surgery but there remains a very deeply ingrained resistance to its use for digital anaesthesia. It is widely thought that it will cause irreversible digital artery vasospasm. This prospective study reports the effect of 2% lignocaine with 1:80,000 adrenaline digital blocks on various parameters of digital arterial blood flow in 100 consecutive patients. Our findings show that adrenaline only temporarily reduced digital blood flow. Perfusion of the digits persisted in every case.

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Different responses of Finapres and the oscillometric finger blood pressure monitor during intensive vasomotion

Raamat

Jagomägi²,

Talts³

2000

Journal of Medical Engineering & Technology

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Two different techniques for non-invasive beat-to-beat finger arterial blood pressure monitoring are compared in six healthy volunteers during local hand heating from 21 to 38 degrees C. The degree of peripheral vasoconstriction was established by recording the thumb pulp skin blood flow with a laser Doppler instrument. For time episodes without vasoconstriction no systematic difference in the readings of beat-to-beat mean blood pressure of the two monitors was found (the oscillometric device UT9201 minus Finapres difference was 0.3 mm Hg, SD 0.3). For the episodes with vasoconstriction the difference was statistically significant (6.7 mm Hg, SD 2.0). The oscillometric device minus Finapres difference and the laser Doppler signal were found to be inversely correlated, the correlation coefficient varying from -0.28 to -0.67. A disagreement between the readings of the instruments during intensive vasomotion is assumed to be caused mainly by the tendency of the oscillometric method to overestimate the finger mean blood pressure under the condition of peripheral vasoconstriction.

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Blood pressure measurement using oscillometric finger cuffs in children and young adults

Cited by 6 publications

References 11 publications

Monitorización de la presión arterial por medios no invasivos

Monitorización de la presión arterial por medios no invasivos

Digital Blocks with Adrenaline

Different responses of Finapres and the oscillometric finger blood pressure monitor during intensive vasomotion

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