Analysis of 31 Chronic Subdural Hematoma Patients Treated by Trepanation and Drainage

Objective:To explore the clinical experience and effect of trepanation and drainage for chronic subdural hematoma.Method:Clinical data of 31 patients with chronic subdural hematoma treated by trepanation and drainage were retrospectively analyzed.The clinical effect and factors that influence the recurrence were analyzed.Result:31 cases of patients with neurological classification than before treatment significantly improved after treatment,comparing difference was statistically significant( P 0.05).The complication included 2 cases of intracranial hematoma,4 cases of subdural effusion,2 cases of tension pneumocephalus,1 case of epilepsia.With 6 months followed up,28 patients cured and 3 patients recurred,recurrence rate was 9.7%.The coagulation dysfunction rate,the rate of inhomogeneous density hematoma on CT image and the rate of cerebral midline shift ≥ 10 mm were significantly higher in the patients with recurrent of CSDHs than those in the patients without recurrent of CSDHs,comparative difference was statistically significant( P 0.05).Conclusion:The trepanation and drainage surgery in chronic subdural hematoma is safe,effective,which complication and efficacy can be improved by taking attention to the factors as coagulation dysfunction,inhomogeneous density of hematomas on CT image and cerebral midline shift ≥ 10 mm.