[Acute hematoma between the dura and the external membrane of hematoma capsule of after the removal of bilateral chronic subdural hematomas by trepanation. Case report].

A case of reported of complication following surgical treatment of bilateral subdural haematomas in an elderly man. Acute haematoma developed after the operation between the dura and the external surface of the capsule of the haematoma which had been removed several hours earlier through a trepanation hole. Attention is called to the atypical localization of the complication with bleeding externally to the capsule and not into the space left after haematoma evacuation which is usually observed in case of haematoma recurrence. The problem is discussed, whether such bleeding during chronic persistence of haematoma can lead to the development of multilayer and multilocular haematomas. In the presented case quick recognition of the complication followed by reoperation with removal of haematoma and bleeding capsule through craniotomy with rehabilitation treatment after the operation has led to very good therapeutic effect.