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Revista de la Sociedad Española de Enfermería Nefrológica

Print version ISSN 1139-1375


ANDRES VAZQUEZ, María del Mar et al. Comparison of two methods for monitoring incident prosthetic arteriovenous fistulas in a health area. Rev Soc Esp Enferm Nefrol [online]. 2011, vol.14, n.3, pp.163-166. ISSN 1139-1375.

Vascular access (VA) is an important challenge, on which the patient's quality of life depends. Object: to find out whether a computerize VA monitoring programme reduces the rate of thrombosis of incident prosthetic AVF (IP-AVF). Material and methods: observational prospective study of IP-AVF monitoring, between 2007 and 2009, in Area 8 of the CAM. Nursing recorded on an Access database: dynamic venous pressure, negative arterial pressure and pump flow in the first hour of dialysis. We compared the results with a historical control group (HCG) of IP-AVF from 2004-2006, when data were only recorded on the nursing chart. IP-AVF thrombosis after 2006 was not valued. Results: Diabetes, sex and age were not related to thrombosis in any group. IP-AVFs at risk in 2007-2009 were: 49 v. 45 of the HCG. We compared the results for the period 2007-2009 compared to the HCG: Annual thrombosis rate: 0.37(18/49) v. 0.67(30/45), (p<0.003). Median first episode of thrombosis 217 v.167 days. Annual rate of fistulographies due to dysfunction 0.98(48/49) v. 0.51(23/45), (p<0.000). Positive predictive value: 94% v. 87%. Sensitivity: 82% v. 44%. Diagnosed stenoses 45 v. 20. Annual repair rate for dysfunction: 0.80(39/49) v. 0.31(14/45), (p<0.000). Annual repair rate before first thrombosis: 0.41(7/17) v. 0.19(4/21), (p<0.001). Annual repair rate for thrombosis: 0.43(21/49) v. 0.69(31/45), (0.01). Through the computerized recording of VA parameters, nurses contribute to diagnosing pre-thrombosis events in IP-AVFs, increasing the number of preventive repairs for dysfunction and reducing the rate of thrombosis.

Keywords : Vascular access; Haemodialysis; Prostheses incident; Computerized record.

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