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Vascular access outcome in patients aged over 75 years
Authors:López-Menchero R  del Pozo C  Andreo L  Sánchez L  Albero M D  Alvarez L  Pinar A
Affiliation:Sección de Nefrología, Hospital Virgen de los Lirios de Alvoy, Polígono de Caramanchel s/n, 03804 Alvoy, Alicante. lopezmanchero_ram@gva.es
Abstract:We report a retrospective study on the results of 132 native fistulas, 12 grafts and 27 tunneled catheters followed during 30 months in 144 patients on hemodialysis. The results were compared according to patient age: 75 years or over (n = 58, 80.3 +/- 3.5) vs below 75 years (n = 86, 59.5 +/- 13.3). Gender, presence of diabetes and type of fistula were also included in the analysis. RESULTS: There were no statistically significant differences between both groups in the use of tunneled catheters or grafts (8.6% vs 5.8% y 5.2% vs 10.5% respectively), primary failure of native fistulas (7.1% in those aged 75 years or over vs 25.5% in patients below 75 years), rate of thrombosis (0.03 vs 0.09/patient year at risk respectively) or number of percutaneous or surgical procedures in order to maintain the fistula patency (0.11 vs 0.16/patient year at risk respectively). At the same time no differences were seen in the primary, primary assisted and secondary patency of the native fistulas. The mean age of the patients when the first access fistula was created was different according to the area of surgery (74.9 +/- 9.3 for the elbow vs 64.9 +/- 16.2 years for the forearm, p < 0.005). Diabetes was an unfavourable factor for primary (HR Cox 2.08, p < 0.05) or secondary (Log Rank, p <0.05) patency. CONCLUSION: The vascular access for hemodialysis in elderly patients presents a similar evolution to that seen in younger populations if the access creation is based on an exhaustive study, including ecodoppler of the vascular map and the use of more proximal fistulas if necessary. Therefore the more frequent use of grafts or catheters in elderly patients is not justified.
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