Titre du document / Document title
Arteriovenous Fistula Puncture : An Essential Factor for Hemodialysis Efficiency
Auteur(s) / Author(s)
SILVA DIAS Taisa (1) ;
MOYSES NETO Miguel (1 2) ;
CARDEAL DA COSTA José Abrao (1) ;
Affiliation(s) du ou des auteurs / Author(s) Affiliation(s)
(1) Division of Nephrology, Faculty of Medicine of Ribeirão Preto, Silo Paulo University, BRESIL
(2) Serviço de Nefrologia de Ribeirão Preto (SENERP), Silo Paulo, BRESIL
Résumé / Abstract
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.
Revue / Journal Title
Renal failure
ISSN
0886-022X
CODEN REFAE8
Source / Source
2008, vol. 30, n
o9, pp. 870-876 [7 page(s) (article)] (18 ref.)
Langue / Language
Anglais
Editeur / Publisher
Taylor & Francis, Colchester, ROYAUME-UNI
(1987)
(Revue)
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Localisation / Location
INIST-CNRS, Cote INIST : 17418, 35400018388067.0090
Nº notice refdoc (ud4) : 20825275
