Clinical Features Of Chronic Subdural Hematoma And Causes Of The Recurrence Of Hematoma

Objective:To improve the understanding and therapeutic effect of chronic subduralhematoma(CSDH) by analysis the etiology, elinieal manifestation andneuroimaging diagnosis and the cause of post operative complications afterburr-hole drainage.Methods:We collected and analyzed the clinical data of91patients after burr-holedrainage during January2010to March2012.Results:1) The etiology:47patients presented with the history of head injury and2patients associated with coagulation function decline. It remained unclear in14patients, accounted for15.4%.2) The clinical symptom: in the younger patients(<60years) shows the most frequent symptom intracranial hypertension whichcause headaches, nausea, vomiting whereas the most frequent symptom in olderpatients (>60years) were numbness or hemiparesis.3) Radiographic inspection:All Patients underwent head CT examinations. Contract-enhanced CT scanswere performed in3patients. The CSDH was classified into five groupsaccording to their density and appearance on CT scans: high, low, iso, mixeddensity and layered.4) Postoperativge complications:88patients completelyrecovered after burr-hole craniostomy.3patients died.12patiens suffered from other postoperative complications, there were9patients of hematomarecurrence and1of epilepsy and stroke respectively.Disccusion:1. For the patients who suffered with CSDH combined withatherosclerosis, the hematoma more easily relapse.2. For the patients who suffered with poor postoperative cerebralrecruitment, the hematoma more easily relapse.3. The recurrence of the CSDH is relative with the density of hematomaas shown in figure CT,for the patients with layered.