| Medical compression: effects on pulsatile leg blood flow. | |
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MedLine Citation:
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PMID: 20924348 Owner: NLM Status: MEDLINE |
Abstract/OtherAbstract:
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AIM: Leg compression bandaging is the mainstay of venous ulcer treatment, yet little is known about the impact of therapeutic compression levels on arterial haemodynamics. In this study, the effect of foot-to-knee, four-layer compression bandaging on below-knee arterial pulsatile blood flow was assessed by nuclear magnetic resonance flowmetry. METHODS: In 14 healthy supine subjects, bilateral pulsatile blood flow measured at five below-knee sites without compression; and during compression of one leg to an average malleolar sub-bandage pressure of 40.7±4.0 mmHg. RESULTS: The forefoot-to-knee compression bandaging caused a highly significant (P<0.001) increase in the bandaged leg pulsatile blood flow due to increases in both peak flow and pulse width. CONCLUSION: It is hypothesized that arteriolar vasodilatation, induced either myogenically by reduced transmural pressure or by vasodilatory substance release triggered by increased venous shear stress and veno-arterial interactions, possibly combined with altered vascular compliance, produce the observed compression-related phenomenon. Whatever the mechanism(s), the finding of a compression-associated pulsatile flow increase suggests an arterial linkage, which may play a role in the well-documented beneficial effects of compression bandaging in venous ulcer and lymphedema treatment. Possible beneficial effects of the arterial flow-pulse increase on venous ulcer outcome may be related to a decrease in leukocyte effects in the distal microvasculature. |
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Authors:
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H N Mayrovitz; J M Macdonald |
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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: 436-41 Citation Subset: IM |
Affiliation:
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Nova Southeastern University, College of Medical Sciences, Ft Lauderdale, FL 33328, USA. mayrovit@nova.edu |
Export Citation:
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| MeSH Terms | |
Descriptor/Qualifier:
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Adult Arteries / physiology Blood Flow Velocity Compression Bandages* Female Humans Leg / blood supply* Magnetic Resonance Spectroscopy Male Middle Aged Pressure Pulsatile Flow* Regional Blood Flow Rheology / methods Supine Position Transducers, Pressure |
From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine
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