Autoři ve své práci popisují kazuistiku 63leté pacientky s chronickým selháním ledvin při systémovém lupus erytematodes s vyčerpanými možnostmi cévních dialyzačních přístupů na horních končetinách, řešenou implantaci A-V zkratu na dolní končetině transponovanou vena femoralis superficialis jako první publikovaný výkon v České republice., The authors describe the case report of a 63 years old female patient with chronic renal failure in systemic lupus erythematosus. Vascular dialysis access in upper limbs could no more be used. The condition was approached by constructing an arteriovenous (AV) fistula in the thigh with transposed superficial femoral vein as the first procedure in the Czech Republic., and J. Buček, R. Staffa, Z. Kříž, R. Vlachovský
The diameter of a graph G is the maximal distance between two vertices of G. A graph G is said to be diameter-edge-invariant, if d(G−e) = d(G) for all its edges, diametervertex-invariant, if d(G − v) = d(G) for all its vertices and diameter-adding-invariant if d(G + e) = d(e) for all edges of the complement of the edge set of G. This paper describes some properties of such graphs and gives several existence results and bounds for parameters of diameter-invariant graphs.