Successful emergency renal auto-transplantation in a child with renovascular disease.

Renal artery occlusion is a rare but potentially catastrophic complication of paediatric endovascular renal artery intervention. Emergency auto-transplantation may be required to salvage the kidney; to date this has only been described in adults. We report our experience of performing emergency kidney auto-transplantation following acute renal artery thrombosis in a child undergoing redo renal artery angioplasty A 20-month-old boy presented with refractory hypertension and hypertensive cardiomyopathy secondary to multifocal fibromuscular dysplasia (FMD) with a single functioning kidney. Acute thrombosis of the renal artery during redo-endovascular balloon angioplasty necessitated emergency renal auto-transplantation. Subsequent acute kidney injury was reversible with benefit to renal function in the medium-term despite prolonged warm ischaemic time of two hours. We recommend that high-risk patients undergoing renal artery intervention do so at centres with on-site renal and vascular surgical backup.