Burr hole craniostomy versus minicraniotomy for chronic subdural hematoma: an updated systematic review and meta-analysis

Abstract Background Chronic subdural hematoma (CSHD) is a common neurological disorder, especially in older people and those on anticoagulant therapy, with incidences of 58 per 100,000 and 80 per 100,000 annually in those individuals over 65 and 75 years, respectively. It is caused by tearing of bridging veins after a minor head injury , presenting with signs and symptoms such as headache , gait disturbance , cognitive decline , hemiparesis , and even unconsciousness . The mortality rate for tre