| Measuring venous pumping function by strain-gauge plethysmography. | |
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MedLine Citation:
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PMID: 20924345 Owner: NLM Status: MEDLINE |
Abstract/OtherAbstract:
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AIM: Hemodynamic effects of compression devices in patients with venous insufficiency are still under dispute. The aim of this paper was to describe a method which is able to give quantitative results concerning an improvement of the venous pumping function by using compression devices in patients with venous insufficiency. METHODS: The ejection fraction (EF) of the calf pump can be measured using strain gauge plethysmography proximal to a compression device on the leg and the degree of improvement depending on the exerted pressure and the elastic property of the material can be assessed. Experiments were carried out in 15 normal volunteers and in a total of 68 patients with severe superficial venous incompetence and who were investigated without compression and with various compression devices measuring interface pressure in different body positions. RESULTS: Examples demonstrating the usefulness of the plethysmographic method are given. The median values of EF were 64.6 (IQR 63.4-68.6) in normal subjects and about half in the venous patients. Statistically significant improvement was achieved using inelastic bandages, resulting in further improvements with increasing pressures between 20 and 60 mmHg. Elastic stockings led only to a moderate improvement of the deficient venous pumping function. Significant correlations were found between EF and standing and walking pressure. CONCLUSION: The described plethysmographic method is very useful to assess haemodynamic effects of different compression devices in patients with venous insufficiency. |
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Authors:
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G Mosti; H Partsch |
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Publication Detail:
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Type: Journal Article |
Journal Detail:
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Title: International angiology : a journal of the International Union of Angiology Volume: 29 ISSN: 1827-1839 ISO Abbreviation: Int Angiol Publication Date: 2010 Oct |
Date Detail:
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Created Date: 2010-10-06 Completed Date: 2011-01-28 Revised Date: - |
Medline Journal Info:
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Nlm Unique ID: 8402693 Medline TA: Int Angiol Country: Italy |
Other Details:
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Languages: eng Pagination: 421-5 Citation Subset: IM |
Affiliation:
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Angiology Department, Barbantini Hospital, Lucca, Italy. jmosti@tin.it |
Export Citation:
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| MeSH Terms | |
Descriptor/Qualifier:
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Aged Aged, 80 and over Case-Control Studies Compression Bandages Female Hemodynamics* Humans Leg / blood supply* Male Middle Aged Plethysmography* Posture Predictive Value of Tests Pressure Saphenous Vein / physiopathology*, ultrasonography Stockings, Compression Treatment Outcome Ultrasonography, Doppler, Duplex Venous Insufficiency / diagnosis, physiopathology, therapy |
From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine
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