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The StenTec Gauge for Measuring Static Intra-access Pressure Ratio (P(Ia Ratio) ) of Fistulas and Grafts.
MedLine Citation:
PMID:  22356546     Owner:  NLM     Status:  Publisher    
Abstract/OtherAbstract:
The StenTec™ Gauge provides a method to determine the static intra-access pressure ratio (P(Ia Ratio) ) within a fistula or graft. The StenTec Gauge estimates the peak systolic pressure within the fistula or graft by measurement of the distance that the blood-air interface progresses into the tubing of the fistula needle, after the needle is inserted "dry" into the fistula or graft and before the cap is removed from the tubing. The peak systolic pressure is graphically compared with the systolic arterial blood pressure of the patient, to determine P(Ia Ratio) . For best accuracy, the StenTec Gauge should be chosen that best matches the internal volume of the fistula needle tubing (2.3-2.6 ml for 12-inch tubing and 3.6 ml for 16-inch tubing) and the approximate elevation of the city in which it is used (0-1000, 1000-3000, and 3000-6000 feet above sea level). In this article, we explain the rationale for this method of surveillance, evidence for accuracy of the StenTec Gauge, and the correlation of changes in the P(Ia Ratio) to the development of stenosis in a fistula or graft.
Authors:
Stephen R Ash; Rajiv Dhamija; Mohamad Y Zaroura; Dirk M Hentschel
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Publication Detail:
Type:  JOURNAL ARTICLE     Date:  2012-2-23
Journal Detail:
Title:  Seminars in dialysis     Volume:  -     ISSN:  1525-139X     ISO Abbreviation:  -     Publication Date:  2012 Feb 
Date Detail:
Created Date:  2012-2-23     Completed Date:  -     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  8911629     Medline TA:  Semin Dial     Country:  -    
Other Details:
Languages:  ENG     Pagination:  -     Citation Subset:  -    
Copyright Information:
© 2012 Wiley Periodicals, Inc.
Affiliation:
HemoCleanse, Inc. and Indiana University Health Arnett, Lafayette, Indiana Interventional Nephrology, Rancho Los Amigos National Rehabilitation Center, Downey, and Department of Internal Medicine, Western University of Health Sciences, Pomona, California Advanced Bioimaging Systems, West Lafayette, Indiana Interventional Nephrology, Renal Division, Brigham and Women's Hospital, Boston, Massachusetts.
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