| Reactive hyperemia increases forearm vein area. | |
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MedLine Citation:
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PMID: 16873341 Owner: NLM Status: MEDLINE |
Abstract/OtherAbstract:
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PURPOSE: To determine the effect of reactive hyperemia on human forearm vein area. METHODS: After obtaining ethics approval and informed consent, an automatic tourniquet was applied to the forearms of 20 healthy subjects for one, two, and three minutes, at pressures of 25 mmHg, 200 mmHg, then 25 mmHg. A blinded radiographer measured the cross-sectional area of the cephalic vein at the wrist using ultrasonography. Measurements were recorded prior to tourniquet application and every minute thereafter for ten minutes, at each pressure setting and each time interval. RESULTS: The mean vein cross-sectional area (mm2) increased from 8.22 +/- 3.09 to 10.77 +/- 3.50 after one minute of ischemia, from 8.31 +/- 2.78 to 10.61 +/- 2.77 after two minutes of ischemia, and from 8.39 +/- 3.34 to 10.94 +/- 3.46 after three minutes of ischemia (P < 0.05 for all). A tourniquet inflated to 25 mmHg for 13 min produced a mean vein cross-sectional area of 10.71 +/- 3.25 mm2. CONCLUSIONS: Reactive hyperemia causes human forearm vein cross-sectional area to increase. A low pressure tourniquet will also increase forearm vein area, but veins dilate more quickly during reactive hyperemia. This may have important clinical implications for attempting venous cannulation in patients with difficult venous access. |
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Authors:
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Heather L Mollison; William P S McKay; Rajesh H Patel; Stefan Kriegler; October E Negraeff |
Publication Detail:
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Type: Journal Article; Research Support, Non-U.S. Gov't |
Journal Detail:
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Title: Canadian journal of anaesthesia = Journal canadien d'anesthésie Volume: 53 ISSN: 0832-610X ISO Abbreviation: Can J Anaesth Publication Date: 2006 Aug |
Date Detail:
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Created Date: 2006-07-28 Completed Date: 2006-12-01 Revised Date: - |
Medline Journal Info:
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Nlm Unique ID: 8701709 Medline TA: Can J Anaesth Country: Canada |
Other Details:
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Languages: eng Pagination: 759-63 Citation Subset: IM |
Affiliation:
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Department of Anesthesia, University of Saskatchewan, Saskatoon, Canada. |
Export Citation:
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APA/MLA Format Download EndNote Download BibTex |
| MeSH Terms | |
Descriptor/Qualifier:
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Adolescent Adult Anatomy, Cross-Sectional Forearm / blood supply* Humans Hyperemia / pathology* Ischemia / pathology Pressure Single-Blind Method Time Factors Tourniquets Vasodilation / physiology Veins / pathology Wrist / blood supply, ultrasonography |
From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine
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