Conservative or immediate surgical management of blunt renal injuries.

From 1969 to 1981, 1,176 blunt renal injuries were recorded in 1,166 patients (10 patients had bilateral injuries). Conservative management of 27 patients with severe renal injuries resulted in a delayed renal operation in 30 per cent and total renal loss in 22 per cent. A review of the published series of the conservative management of patients with severe renal injuries (laceration, rupture and pedicle injury) shows a renal surgery rate of 13 to 68 per cent, a renal loss rate of 3 to 33 per cent and a significant complication/renal surgery rate of 13 to 76 per cent. In our patients 88 per cent with severe renal injuries had associated injuries and 73 per cent of these underwent immediate laparotomy for intra-abdominal injury. Immediate renal surgery in 59 patients with severe renal injuries resulted in a nephrectomy rate of 6.5 per cent of 31 renal lacerations, 100 per cent of 14 renal ruptures and 50 per cent of 14 pedicle injuries. Of the 14 patients with pedicle injuries 6 (43 per cent) had immediate vascular repair, with salvage of the kidney. Immediate surgical management of the patients with severe renal injuries obviated the need for a second exploration in a severely injured patient, reduced morbidity and resulted in increased renal salvage.