• Acta neurochirurgica · May 2018

    Prevalence of and risk factors for recurrence of chronic subdural hematoma.

    • Wendong You, Yuanrun Zhu, Yadong Wang, Wenchao Liu, Hao Wang, Liang Wen, and Xiaofeng Yang.
    • Department of Neurosurgery, First Affiliated Hospital, College of Medicine, Zhejiang University, 79 Qingchun Road, Hangzhou, Zhejiang Province, 310003, China.
    • Acta Neurochir (Wien). 2018 May 1; 160 (5): 893-899.

    BackgroundChronic subdural hematoma (CSDH) is a common disease in neurosurgical practice with substantial recurrence rate. We aimed to estimate recurrence rate of CSDH and to identify risk factors for CSDH recurrence.MethodsWe retrospectively studied consecutive cases with CSDH and performed surgical therapy in our hospital. Univariate and multivariate logistic regression analyses were performed to identify factors associated with recurrence of CSDH.ResultsA total of 226 patients with CSDH were included; 34 patients recurred after surgery with a recurrence rate of 15.0%. Univariate analysis showed that the recurrence group had more patients with homogenous hyper-dense hematoma (20.6 vs 6.3%, p = 0.035) and shorter duration of subdural drainage post-surgery (1.2 ± 1.4 vs 1.5 ± 0.9, p = 0.022) than the non-recurrence group. Logistic regression analysis revealed that duration of subdural drainage (OR = 0.66, p = 0.05) and hyper-dense of hematoma (OR = 4.94, p = 0.012) were independent predictors for CSDH recurrence.ConclusionsHomogenous hyper-dense of hematoma and duration of subdural drainage post-surgery were independent predictors for CSDH recurrence; longer duration of postoperative subdural drainage was associated with lower risk of recurrence.

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