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Efficacy of Percutaneous Transluminal Angioplasty on Dysfunctional Fistulae Because of Inflow Stenosis

2013Journal article Open access
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dc.contributor.authorCaeiro, F
dc.contributor.authorCarvalho, D
dc.contributor.authorCruz, J
dc.contributor.authorRibeiro Santos, J
dc.contributor.authorNolasco, F
dc.date.accessioned2017-04-19T14:37:47Z
dc.date.available2017-04-19T14:37:47Z
dc.date.issued2013
dc.description.abstractPURPOSE: Autogenous fistulas are the preferential vascular access for hemodialysis. The aim of this retrospective study was to determine the efficacy of angioplasty for dysfunctional fistulas because of inflow dysfunction. 
 METHODS: We reviewed all the angiographic procedures performed on our institution between April 2007 and April 2009. Procedures performed in dysfunctional fistulas because of inflow stenoses were analyzed. Fistulas with stenoses out of these areas were excluded. The following data were collected: patient age and sex, fistula age at the time of intervention, location of fistula, number and location of stenosis, angiography referral criteria, clinical findings (presence or absence of thrills, bruits and pulsatility) and date of reintervention or failure. 
 RESULTS: During the study period 215 fistulas were submitted to angiography of which, seventy-one presented inflow stenosis (33%). Mean follow-up was 21.72±9.26 months, and average age was 7.03 months. Two groups were considered: 31 fistulas comprising ≤6 months old, and 40 fistulas >6 months old. Primary patency rates±SE for older fistulas at 6, 12, 18 and 24 months, respectively, was 91.3%± 0.04%, 80.7%± 0.07%, 53.8% ±0.10% and 34.2±0.1% versus 91.7±0.08%, 57.1±0.14%, 23±0.14%, 11.4%± 0.1% for younger fistulas (P=0.04). Fistulas ≤6 months old and multiple stenosis were associated with a poorer primary patency rate (P=0.005).
 CONCLUSIONS: Inflow stenosis is frequently associated with fistula dysfunction. In this study we only analyzed AVF with inflow stenosis and we have shown that angioplasty can have great patency results, particularly for single lesions in matured fistulas.pt_PT
dc.description.versioninfo:eu-repo/semantics/publishedVersionpt_PT
dc.identifier.citationJ Vasc Access. 2013 Jul-Sep;14(3):231-8pt_PT
dc.identifier.doi10.5301/jva.5000129pt_PT
dc.identifier.urihttp://hdl.handle.net/10400.17/2678
dc.language.isoengpt_PT
dc.peerreviewedyespt_PT
dc.publisherWichtigpt_PT
dc.subjectAgedpt_PT
dc.subjectArteriovenous Shunt, Surgicalpt_PT
dc.subjectBlood Flow Velocitypt_PT
dc.subjectConstriction, Pathologicpt_PT
dc.subjectFemalept_PT
dc.subjectGraft Occlusion, Vascularpt_PT
dc.subjectHumanspt_PT
dc.subjectMalept_PT
dc.subjectMiddle Agedpt_PT
dc.subjectRadiographypt_PT
dc.subjectRegional Blood Flowpt_PT
dc.subjectRetrospective Studiespt_PT
dc.subjectRisk Factorspt_PT
dc.subjectTime Factorspt_PT
dc.subjectTreatment Outcomept_PT
dc.subjectVascular Patencypt_PT
dc.subjectAngioplasty, Balloonpt_PT
dc.subjectRenal Dialysispt_PT
dc.subjectHCC NEFpt_PT
dc.titleEfficacy of Percutaneous Transluminal Angioplasty on Dysfunctional Fistulae Because of Inflow Stenosispt_PT
dc.typejournal article
dspace.entity.typePublication
oaire.citation.endPage238pt_PT
oaire.citation.issue3pt_PT
oaire.citation.startPage231pt_PT
oaire.citation.titleJournal of Vascular Accesspt_PT
oaire.citation.volume14pt_PT
rcaap.rightsopenAccesspt_PT
rcaap.typearticlept_PT

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