Burr-hole craniostomy with closed-system drainage is a safe and effective method for the management of chronic subdural hematoma. However, contralateral acute subdural hematoma has been reported to be a rare and devastating complication. Only 3 cases have been described in the literature. Herein, we reported an 80-year-old male with chronic subdural hematoma and contralateral subdural hygroma. The burr-hole craniostomy with closed-system drainage was initially performed to treat the chronic subdural hematoma. Three days after surgery, weakness of the extremities developed, and contralateral acute subdural bleeding within the previous subdural hygroma was diagnosed by CT scan of the brain. The pathophysiological mechanism of this rare complication was discussed, and the relevant literature was also reviewed.

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Sharp penetrating trauma to the skull and brain is uncommon in children. The related pediatric literature consists mainly of cases involving penetrating stab wounds to the face or scalp resulting from assaults or accidents. Herein, we present two cases of perioral intracranial penetration. The first case was a 2-year-old boy who presented with septic complications and developed a brain abscess. The second case was a 2-year-old girl who presented with a subarachnoid hemorrhage and developed a traumatic pericallosal artery aneurysm. After craniotomy and clipping, both patients made a satisfactory recovery. A high index of suspicion, liberal use of neuroimaging and early operative intervention are important points in the successful management of such cases.

The type of hypospadias and the surgeon caseload volume were significantly associated with the need for secondary hypospadias surgery. The findings of this study provide important information on the outcomes of hypospadias repair for parents and specialists.