Abstract: Objective To investigate the treatment,clinical effect and prognosis of subdural effusion after decompressive craniectomy in patients with severe brain injury.Method A retrospective analysis was performed on the clinical data of 54 patients with severe craniocerebral injury secondary to subdural hydrops after decompression after craniectomy admitted to the First Affiliated Hospital of Xinxiang Medical College from January 2015 to December 2020.According to clinical symptoms and fluid accumulation,34 patients were treated conservatively,and 20 patients were treated surgically.3 months after treatment,head CT was re-examined to evaluate fluid absorption.After 6 months of treatment,the daily living ability of patients was assessed by the Daily Living Ability Assessment Scale(ADL).Result The effective rate was 85%(29/34) in the non-surgical group and 90%(18/20) in the surgical group.There was no significant difference in effective rate between the two groups(P>0.05).After 6 months of follow-up,the ADL score of 2 groups was higher than that of the corresponding group before treatment,and the difference was statistically significant(P<0.05). Conclusion For patients with subdural effusion after decompression after craniocerebral decompression,individualized treatment can achieve satisfactory results according to the amount of effusion and clinical symptoms.

Key words: traumatic subdural effusion, decompressive craniectomy, severe brain injury