Authors: J. Malík; M. Slavíková 1 Authors‘ workplace: III. interní klinika 1. LF UK a VFN, Praha 1Klinika kardiovaskulární chirurgie 1. LF UK a VFN, Praha Published in: Čas. Lék. čes. 2003; : 164-166 Category:
Background. Stenoses are leading factors limiting dialysis vascular access patency. Both physical and haemodynamicexaminations are used in stenoses screening. To estimate potential advantage of ultrasonography as a screeningmeasure, we calculated both sensitivity and specificity of clinical (nephrological) diagnoses of access stenosescompared with ultrasound.Methods and Results. 268 examinations of 193 subjects were included into this comparison. Linear-array 7.5 MHzultrasound probe were used for whole-length access examination. Sensitivity of clinical examination was 35.8 %,specificity 92.8 %. Sensitivity did not differ significantly according to the stenosis localization.Conclusions. Ultrasound use in dialysis access screening would considerably increase the number of stenosesdiagnosed in-time. On the contrary, clinical suspicion on access stenosis is highly specific, therefore it is notindispensable to confirm it by ultrasound.
Key words: haemodialysis, vascular access, ultrasonography.
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