To investigate the generation and therapeutic strategy of subdural effusion after large decompressive craniotomies in patients with severe traumatic brain injury.

Retrospective analysis of the therapeutic process and results of 15 casas, from October 2017 to March 2019, admitted by the second Department of Neurosurgery, Hebei Yanda Hospital, after large decompressive craniotomies treatment of subdural effusion. There were 6 cases of ipsilateral subdural effusion decompression, 4 cases of contralateral subdural effusion decompression, 3 cases of bilateral subdural effusion, and 2 cases of bilateral subdural effusion. The different treatment methods of subdural hydrops were analyzed and summarized.

Thirteen cases of subdural effusion disappeared, of which 4 cases were cured and 9 cases were improved; 1 case of subdural effusion was significantly reduced, improved and discharged, which still needs long-term observation; 1 case of effusion cavity and abdominal shunt was performed in the external hospital, and the subdural effusion was not significantly reduced; intracranial infection occured, and treatment was finally abandoned.

According to different patient’s condition, the subdural fluid accumulation caused by craniotomy and large bone flap decompression should be treated with different therapeutic methods or comprehensive application could in order to further improve the effect of subdural effusion and life quality of the patients.