N-butyl 2-Cyanoacrylate (NBCA) in Nephron Sparing Superselective Embolization of Iatrogenic Renovascular Injuries: A Single Centre Experience

Purpose To evaluate the safety and efficacy of N-butyl-2-cyano-acrylate (NBCA) for endovascular management of iatrogenic renal-vascular injuries and effects on renal function.Material & Methods Fifteen patients with diagnosed or suspected iatrogenic renal vascular injuries, following percutaneous procedures formed the study group. All the patients were having retroperitoneal hemorrhage or hematuria, with hemodynamic instability at the time of presentation. Pseudoaneurysms, active extravasation of contrast, and the arteriovenous fistula were identified as the cause of bleeding on digital subtraction angiography. Patients underwent trans arterial super-selective embolization. Renal function was monitored using serum creatinine, estimated glomerular filtration rate (eGFR), and mean blood pressure of all the patients at immediate post-procedure and two months intervals.Results Technical and clinical success was achieved in all the cases using NBCA alone. Patients improved hemodynamically. None of the patients required repeat embolization. No derangement in renal function was observed immediately after the procedure and at interval follow-up.Conclusion NBCA can be used as a safe embolizing agent to provide a quick and effective cure for iatrogenic renovascular injuries. Renal parenchymal loss can be minimized by super selective technique.