The effects of membranous abnormalities on mortality and morbidity in chronic subdural hematomas [Kronik subdural hematomlarda membranöz abnormalitelerin mortalite ve morbiditeye etkisi]

Objective: our aim was to evaluate the effects of membranous abnormalities on morbidity and mortality in chronic subdural hematomas (csdh). methodology: this retrospective study included 116 patients operated in three different hospitals during last three years. patients were analyzed for the presence of trauma,operation type,recurrence,complication/s,presence of membranous abnormalities like thick outer membrane and septa formation,and mortality. results: the mean age of the patients 62,06±11.4 ranging between 42 and 87. 78 (67.2%) of them were male and 38 (32.8%) were female the most common predisposing factor was the trauma especially in male gender. the presence of membranous abnormalities played significant effects on recurrence and complication rates. however,it didn't have significant effect on mortality. conclusion: trauma is still the most common etiological factor in chronic subdural hematomas. the presence of membranous abnormality in csdh increases the recurrence and complication rates. © 2015,ege university press. all rights reserved.