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dc.contributor.authorRamacciotti, Eduardo
dc.contributor.authorGalego, Sidnei José
dc.contributor.authorGomes, Marise
dc.contributor.authorGoldenberg, Saul [UNIFESP]
dc.contributor.authorGomes, Paulo de Oliveira [UNIFESP]
dc.contributor.authorOrtiz, Jayme Pinto
dc.identifier.citationJournal Of Vascular Access. Milan: Wichtig Editore, v. 8, n. 1, p. 33-43, 2007.
dc.description.abstractPurpose: The objective was to evaluate the impact of anastomosis diameter on blood flow in an arteriovenous fistula (AVF), comparing two different anastomosis sizes with a modified side-to-side technique in canine femoral arteries.Methods: Ten mongrel dogs were subjected to two AVFs each, both using a modified side-to-side technique. On one side, the anastomosis diameter was 1.5 times the arterial diameter and on the other side 3.0 times the arterial diameter. Mean proximal and caudal blood flow and mean venous flow were measured using an electronic flowmeter 15, 20 and 25 min after surgery. The Mann-Whitney, Friedman and Wilcoxon non-parametric tests were used for data analysis (alpha <= 0.05).Results: Femoral artery flow cranial to the fistula became 5.6 times greater in the 1.5 arterial diameter group, and 8.4 times greater in the 3.0 arterial diameter group, when compared to initial arterial flow. The mean flow in the cranial vein was greater in the 3.0 group (10.09 times greater vs. 6.46 times greater in the 1.5 group). Both in the proximal artery and in the vein there was a significantly greater flow in the group with the larger anastomosis diameter (Wilcoxon test). In the femoral artery caudal to the fistula, the flow in most of the animals was reversed: 3.5 times greater in the 1.5 group and 1.2 times greater in the 3.0 group, without statistical difference.Conclusions: These results suggest that 3.0 times the arterial diameter for the AVF size in dogs leads to greater venous flow than with 1.5 times the arterial diameter, without increasing the reversed flow.en
dc.publisherWichtig Editore
dc.relation.ispartofJournal Of Vascular Access
dc.rightsAcesso restrito
dc.subjectarteriovenous fistulaen
dc.subjectarteriovenous anastomosisen
dc.subjectarteriovenous derivationen
dc.subjectregional blood flowen
dc.subjectfemoral arteryen
dc.titleFistula size and hemodynamics: an experimental model in canine femoral arteriovenous fistulasen
dc.contributor.institutionUniversidade Federal de São Paulo (UNIFESP)
dc.description.affiliationHosp Maternidade Dr Christovao Gama, Santo Andre, SP, Brazil
dc.description.affiliationUniv Fed Sao Paulo, Univ Fed Sao Paulo, Sao Paulo, Brazil
dc.description.affiliationUniv Sao Paulo, USP, Polytech Sch Sao Paulo, Sao Paulo, Brazil
dc.description.affiliationUnifespUniv Fed Sao Paulo, Univ Fed Sao Paulo, Sao Paulo, Brazil
dc.description.sourceWeb of Science

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