Anglioplastía transluminal percutánea (ATP) y endoprótesis en el tratamiento de estenosis venosas centrales y periféricas, de fístulas arteriovenosas para hemodiálisis crónica / Percutaneous transluminal angioplasty and endoprosthesis in the treatment of the central and peripheral venous stenoses of arteriovenous fistula for chronic hemodialysis

RESUMO

We studied retrospectively 48 patients with arteriovenous fistulae stenoses, that were followed during 24 months. When the fistulography disclosed an stenosis, a percutaneous thrombolysis was done. These procedures were repeated as needed. Twenty four patients had a peripheral vein stenoses, 20 had subclavian vein stenosis and 4 had both veins compromissed. All were dilated with percutaneous transluminal angioplasty. Five stents were installed in the subclavian vein and five in peripheral veins. Two patients required thrombolysis. The procedure was succeful in 96 percent of peripheral lesions and 92 percent of central lesions. There was regression of superior limb edema in 16 of 20 patients. Five patients had an subclavian treated veins remained patent. The use of percutaneous transluminal angioplasty and intravascular stents, maintains long term arteriovenous fistulae permeability and has similar results to surgical procedures