Dear Editors,

In their recently published article entitled “Renovascular hypertension: results in adulthood of renal autotransplantation performed in children”, Chavent et al. present good long-term results for renal autotransplantation performed in children [1]. However, we would like to draw attention to the potential complications of this surgery that are not mentioned in this paper. The surgical technique is not described in the Methods, but in the Discussion, where the authors mention that they used arterial graft as a substitute. To our knowledge, it is the internal iliac artery which is the usual arterial graft for this type of surgery. Yet, as we showed in 2013 [2], the occlusion of the internal iliac artery can lead to such complications as buttock claudication. This complication may be disabling, especially in young patients, and surgical repair is very difficult or impossible. Moreover, case series have shown other complications, such as erectile dysfunction [3]. This complication is alarming for young male patients. We are very interested to know if the use of internal iliac artery in these young patients is a safe technique in the short and long term.