Abstract
Background
Chronic 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.
Methods
We 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.
Results
A 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.
Conclusions
Homogenous 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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Acknowledgments
The authors sincerely thank all the doctors in the neurosurgery department of the First Affiliated Hospital of Zhejiang University College of Medicine for their help in conducting this research.
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The study was approved by the ethics committee of the First Affiliated Hospital, College of Medicine, Zhejiang University, and was performed in accordance with the ethical standards laid down in the 1964 Declaration of Helsinki and its later amendments. Informed consent was obtained from all individual participants included in the study.
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You, W., Zhu, Y., Wang, Y. et al. Prevalence of and risk factors for recurrence of chronic subdural hematoma. Acta Neurochir 160, 893–899 (2018). https://doi.org/10.1007/s00701-018-3513-0
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DOI: https://doi.org/10.1007/s00701-018-3513-0