[Blunt kidney trauma in childhood].

In a retrospective analysis of 42 paediatric blunt renal injuries the indications for conservative and surgical treatment were evaluated. The type of injury (contusion, laceration, fragmentation, pedicle injury), associated injuries, the diagnostic procedures, the therapy and its results were analysed. All 18 contusions were treated conservatively. For the 24 severe injuries there was a surgery rate of 66% (16/24), a renal loss rate of 16% (4/24); the other organs could be saved by the operation. With primarily conservative treatment we had to operate in one case only due to recurrent haematuria; the renal loss rate was 0%. The following criteria are defined as indications for surgical treatment: (1) deteriorating vital signs, (2) pedicle injury, (3) large devitalized renal segments, (4) large extravasations of contrast medium ("Page kidney").