Comparative evaluation of three ambulatory plethysmographic devices as regards accuracy and handling in daily practice

Détails

ID Serval
serval:BIB_8258C38DD57C
Type
Article: article d'un périodique ou d'un magazine.
Collection
Publications
Titre
Comparative evaluation of three ambulatory plethysmographic devices as regards accuracy and handling in daily practice
Périodique
European Journal of Vascular Surgery
Auteur(s)
Ris  H. B., Gfeller  C., Mahler  F., Nachbur  B.
ISSN
0950-821X (Print)
Statut éditorial
Publié
Date de publication
04/1991
Volume
5
Numéro
2
Pages
159-64
Notes
Comparative Study
Journal Article --- Old url value: http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?cmd=Retrieve&db=PubMed&dopt=Citation&list_uids=2037087 --- Old month value: Apr
Résumé
We compared a computed strain gauge plethysmograph (SGP1) with a Gutmann strain gauge plethysmograph (SGP2) and a photoplethysmograph (PPG) in 24 normal and 12 radiologically proven postphlebitic limbs with respect to assessment of the calf pump function, discrimination between normal and pathologic values, and handling. Recovery time (RT50), refilling volume (RV) and the Index (RT50xRV) were measured at the ankle and the calf in each limb after 20 dorsiflexions of the feet in the sitting position. The PPG device could only measure RT50. There was a strong positive correlation in RT50, RV and Index values between SGP1 and SGP2 at the ankle and at the calf (p less than 0.001), but none in RT50 ankle and calf values between PPG and SGP1 (p = 0.1) and PPG and SGP2 (p = 0.1). The comparison between normal and postphlebitic limbs revealed significant differences for all three values RT50, RV and Index only for SGP1 ankle measurements (p less than 0.02, p less than 0.01, respectively). Ankle RT50 values were significantly longer than calf RT50 values for both strain gauge devices (p less than 0.01), where PPG results were not influenced by the site of measurement. The average number of tests required to obtain a valid curve in each limb at the ankle and calf was lowest for SGP1 measurements. Vein calf pump function is easily and accurately assessed by SGP1 ankle measurements. However a threshold limit between normal and pathologic values can not be defined either for RT50 or for RV values in the individual case, and the creation of an Index adds little to solve this problem.
Mots-clé
Adult Blood Volume/physiology Evaluation Studies Female Humans Leg/blood supply Male Plethysmography/*instrumentation Postphlebitic Syndrome/*diagnosis
Pubmed
Création de la notice
29/01/2008 14:00
Dernière modification de la notice
03/03/2018 18:50
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