Original scientific paper

Digital photoplethysmography in the diagnosis of traumatic vasospastic disease

A. Bogadi-Šare ; Institute for Medical Research and Occupational Health, Zagreb, Croatia
M. Zavalić ; Institute for Medical Research and Occupational Health, Zagreb, Croatia

Abstract

By means of the photoplethysmographic method including the cold test, skin blood flow was recorded m the fingers of 42 chain-saw operators and 36 control subjects. The essential difference between the groups pertained to the height of the pulse wave amplitude after the cold test and to the fall in amplitude expressed as a percentage of its initial value. A limit of a 90% fall in amplitude after the cold test is proposed as s criterion for differentiating a normal from a pathological vasospastic reaction. A fall in amplitude is correlated with the intensity of subjective disorders, Le. the attack of vibration-induced white fingers. The obstructive form and loss of amplitude of the pulse wave form are accepted as pathological.

Keywords

chain-saw operators; cold test; low-frequency vibration; skin blood flow; vibration disease; white fingers

Hrčak ID:

148285

URI

https://hrcak.srce.hr/148285

Publication date:

30.3.1993.

Article data in other languages: croatian

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