CO2 automated digital subtraction angiography for endoAVF creation

Recent literature shows how residual renal function (RKF), defined as the urinary clearance of urea and creatinine, is associated with a lower mortality risk in HD patients. The use of non-nephrotoxic contrast media during radiological procedure, may be useful for preservation of RKF in patients with chronic kidney disease not yet in haemodialysis. We describe the case of a 51-year-old male suffering from chronic kidney disease from 2018, due to a right nephrectomy for an adenocarcinoma, who was considered for an endovascular arteriovenous fistula (endoAVF) creation (WavelinQ endoAVF System, Becton Dickinson, Franklin Lakes, New Jersey, US), using Carbon Dioxide as contrast media instead of conventional iodinated ones, with optimal results. CO2 DSA permits to well recognize the patency of target vein, its connection to the perforator vein and finally the endoAVF creation without requiring supplemental iodate contrast medium. We propose, CO2 automated digital subtraction angiography (DSA) as a safer technique that could be substitutive of the standard iodinated ones, in the creation of endo AVF.

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