• Yingfeng Wan, Jixi Xie, Dajiang Xie, Zhaoliang Xue, Yirong Wang, and Shuxu Yang.
• Department of Neurosurgery, Sir Run Run Shaw Hospital, The Affiliated Hospital of Medical College, Zhejiang University, Hangzhou, China.
• Acta Neurol Belg. 2016 Dec 1; 116 (4): 509-512.

AbstractThe etiology of chronic subdural hematoma (CSDH) in patients is diverse. The primary objective of this article was to discuss one of the causes, spontaneous intracranial hypotension with spinal cerebrospinal fluid (CSF) leak, which is usually neglected by the neurosurgeon. All the consecutive 15 patients who underwent operation for CSDHs between June 2012 and June 2014 at Sir Run Run Shaw Hospital of Zhejiang University were included in this retrospective cohort study. The clinical and imaging data of these patients with CSDHs due to spinal CSF leak were retrospectively studied. Fifteen patients, with a mean age of 53.8 ± 8.3 years, underwent operations for CSDH. Hematomas were unilateral in 4 patients and bilateral in 11 patients. Among these patients, eight patients had recurrence of hematomas after operation due to neglect of spinal CSF leak. All patients had fully recovery. Spinal CSF leak is a cause of cSDH, which is overlooked by the doctor.

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