Introduction

The incidence of chronic subdural hematoma (CSDH) is increasing. This study evaluates the etiologic causes and findings of CSDH and compared unilateral CSDH with bilateral CSDH. This study aims to draw attention to this increasingly prevalent condition.

Methods

We retrospectively analyzed 195 surgically treated cases of CSDH in our clinic between 2008 and 2018.

Results

The average age of the patients was 65.7±19.6 years. The most common symptom was headache (53.3%). The case background was use of anticoagulant (37.9%), head trauma (34.3%). The hematomas were 28.7% right side, 44.6% left side, and 26.7% bilateral. The mean Glasgow Coma Score (GCS) was13.4±2.9, early postop 13.8±2.5, and late postop was 14.6±1.1. Postoperative complications included acute subdural hematoma (5.1%), cerebral infarction (1.5%), wound infection (0.5%) and others (13.3%). Re-expansion of brain were statistically significantly less frequent and impaired consciousness, anticoagulant use, early and late postop thickness were statistically significantly more frequent in patients with bilateral CSDH.

Conclusions

CSDH is seen more patients of advanced age, those who use anticoagulants, patients with hypertension and diabetes and in patients with a history of head trauma. Prognosis is worse in bilateral CSDH. We estimate that the incidence of CSDH will go up in the future.