| Arteriovenous fistula puncture: an essential factor for hemodialysis efficiency. | |
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MedLine Citation:
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PMID: 18925526 Owner: NLM Status: MEDLINE |
Abstract/OtherAbstract:
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OBJECTIVE: To determine the blood recirculation ratio in the vascular access of patients on hemodialysis, and to calculate the Kt/Vs obtained with the different techniques of arteriovenous fistula punctures. MATERIALS AND METHODS: A total of 174 patients were divided according to the technique used for arteriovenous fistula puncture: group 1, needles in opposite directions and with a distance of 5 cm or more between them; group 2, needles in opposite directions but with a distance of less than 5 cm; group 3, unidirectional needles with both directed to the heart and with a distance of 5 cm or more; group 4, unidirectional needles but separated by a distance of less than 5 cm between needles; and group 5, patients carrying a temporary venous catheter. Blood samples were collected for urea analysis, pre and post-dialysis for Kt/V rate, and other samples for calculation of the access recirculation. RESULTS: Group 1 presented the lowest rate of access recirculation (8.51 +/- 4.90%) and the best Kt/V (1.71 +/- 0.36), while group 4 presented the worst access recirculation (20.68 +/- 4.92%) and Kt/V (1.16 +/- 0.26). All groups differed significantly from group 4 (p < 0.05), except group 5 with regard for Kt/V parameter. DISCUSSION: The technique of arteriovenous fistula puncture is an essential factor to decrease the access recirculation and assure better results of measurement of hemodialysis adequacy. On the basis of the results obtained, insertion of the needles in the same direction and with a distance of less than 5 cm between them should be avoided. |
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Authors:
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Taísa Silva Dias; Miguel Moysés Neto; José Abrão Cardeal da Costa |
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Publication Detail:
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Type: Controlled Clinical Trial; Journal Article; Research Support, Non-U.S. Gov't |
Journal Detail:
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Title: Renal failure Volume: 30 ISSN: 1525-6049 ISO Abbreviation: Ren Fail Publication Date: 2008 |
Date Detail:
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Created Date: 2008-10-17 Completed Date: 2009-01-26 Revised Date: - |
Medline Journal Info:
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Nlm Unique ID: 8701128 Medline TA: Ren Fail Country: United States |
Other Details:
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Languages: eng Pagination: 870-6 Citation Subset: IM |
Affiliation:
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Division of Nephrology, Faculty of Medicine of Ribeirão Preto, São Paulo University, São Paulo, Brazil. tadias2006@hotmail.com |
Export Citation:
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APA/MLA Format Download EndNote Download BibTex |
| MeSH Terms | |
Descriptor/Qualifier:
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Adult Aged Arteriovenous Anastomosis / physiopathology*, surgery Blood Flow Velocity / physiology Catheterization, Peripheral* Catheters, Indwelling Female Humans Kidney Failure / physiopathology, therapy* Male Middle Aged Punctures / methods* Regional Blood Flow / physiology* Renal Dialysis* Treatment Outcome |
From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine
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