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Angiology
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Photoplethysmography of the Distal Pulp in the Assessment of the Vasospastic Hand

Ernest Davidson Cooke, M.D., F.I.C.A.

Department of Medical Electronics, St. Bartholomew's Hospital, West Smithfield, London, England

Sally Ann Bowcock, S.R.N.

Department of Medical Electronics, St. Bartholomew's Hospital, West Smithfield, London, England

Albert Trevor Smith, Ph.D.

Department of Medical Electronics, St. Bartholomew's Hospital, West Smithfield, London, England

A procedure for assessing the peripheral vasculature and a new technique for determining the characteristics of the a.c. (arterial) photoplethysmographic (PPG) waveform are described. Comparing 12 normal female volunteers and 12 female patients with Raynaud's phenomenon, PPG amplitude is as good as the results of a standard thermographic test in distinguishing between the groups. The limb arterial flow measured by strain gauge plethysmography (SPG) and the timing of features in the PPG waveform showed differences between the groups, which did not reach statistical significance. The rise time of the PPG waveform, however, was found to be correlated with age independently of vasospasticity.

Angiology, Vol. 36, No. 1, 33-40 (1985)
DOI: 10.1177/000331978503600106
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This article has been cited by other articles:


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 ANGIOLOGYHome page
N. E. Almond, D. P. Jones, and E. D. Cooke
Noninvasive Measurement of the Human Peripheral Circulation: Relationship Between Laser Doppler Flowmeter and Photoplethysmograph Signals from the Finger
Angiology, January 1, 1988; 39(9): 819 - 829.
[Abstract] [PDF]

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 ANGIOLOGYHome page
E.D. Cooke, S. A. Bowcock, C.J. Watkins, M.H.A. Rustin, and J.D.T. Kirby
CL115,347, an Analogue of Prostaglandin E2: Peripheral Circulatory Effects of Single Ascending Doses Administered Transdermally in Normal Subjects and in Patients with Raynaud's Phenomenon
Angiology, December 1, 1985; 36(12): 867 - 871.
[Abstract] [PDF]


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