Factors influencing the recurrence rate of operated chronic subdural hematomas

In this study we are trying to establish a correlation between the surgical technique used for the treatment of chronic subdural hematomas and the risk of recurrence. Between 01.06.2008 and 31.05.2014, 123 patients with 138 chronic subdural hematomas (CSDH) were operated on and followed-up in our department. Among them, 16 hematomas (11,6%) recurred. Factors related to the patients (gender, age, location of the hematoma) are analyzed as possible predictors of recurrence. Several surgical techniques were used in the treatment of chronic subdural hematomas. Each of them is analyzed to find possibly connections with the recurrence risk of the size of the approach, the reposition of the bone flap, the suture of the dura and other aspects. There are obvious, statistically significant correlations between the risk of recurrence and some elements of the surgical technique employed.