A Quantitative Test for Measuring Reactivity to Cold by the Digital Plethysmograph Technique
| Autor: | Ph. de Faucal, J.Y. Grolleau, Bernard Planchon, S. Essboui |
|---|---|
| Rok vydání: | 1986 |
| Předmět: |
Adult
Male 030222 orthopedics medicine.medical_specialty business.industry Hemodynamics Raynaud Disease 030204 cardiovascular system & hematology Control subjects Surgery Cold Temperature Fingers Plethysmography 03 medical and health sciences Vascular reactivity 0302 clinical medicine Internal medicine medicine Cardiology Animals Humans Plethysmograph Female Cardiology and Cardiovascular Medicine business |
| Zdroj: | Angiology. 37:433-439 |
| ISSN: | 1940-1574 0003-3197 |
| DOI: | 10.1177/000331978603700602 |
| Popis: | The authors have developed a vascular reactivity test to cold using the digital plethysmograph technique with a mercury strain gauge. Three types of arterial reactivity were determined: local reactivity after immersion of the hand in 11°C water, general reactivity after thorax ventilation, and cumulative reactivity as sociating both of these cooling modes. The method is based on measurement of the digital plethysmographic signal expressed as a ratio of a reference warm amplitude obtained after immersion of the hand in 45°C water for 3 min. The method was tested and perfected in 66 control subjects before being applied to 65 patients with Raynaud's disease. Significant differences were noted between these 2 groups, especially in cumulative reactivity (p < 10-9), which led to nu merical expression of results in 5 types of increasingly important reactivity. It would appear that the test has diagnostic and prognostic value in the explora tion of vascular acrosyndromes and their therapeutic follow-up. |
| Databáze: | OpenAIRE |
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