Safety of cerebral angiography and neuroendovascular therapy in patients with chronic kidney disease

Contrast-induced nephropathy is a common clinical concern in patients undergoing neuroendovascular procedures, especially in those with pre-existent kidney disease. We aimed to define the incidence of contrast-induced nephropathy in these high-risk patients in our practice. We analyzed data retrospectively from patients undergoing neuroendovascular procedures at two academic medical centers over a 4-year period. Contrast-induced nephropathy was determined by an absolute increase in serum creatinine of 0.5 mg/dL or a rise from its baseline value by ≥ 25%, at 48–72 h after exposure to contrast agent after excluding other causes of renal impairment. High-risk patients were identified as those with pre-procedural estimated glomerular filtration rate