• Tianyuan Zhao, Wei Ouyang, Shaobing Wang, and Peitao Wu.
• Department of Neurosurgery, Hubei Provincial Hospital of Integrated Chinese & Western Medicine, Wuhan, China. Electronic address: Zhty1002@126.com.
• World Neurosurg. 2017 Jun 1; 102: 696.e17-696.e20.

BackgroundShunting to the cranial venous sinus represents a novel treatment strategy for hydrocephalus. To our knowledge, overdrainage as a complication after shunting to the cranial venous sinus has not previously been reported in the clinical literature. Here we report the case of a 50-year-old man who suffered from overdrainage after a ventriculosinus shunt insertion.Case DescriptionA 50-year-old man was admitted to our hospital with recurring fever and gait difficulty 4 months after a ventriculoperitoneal shunt (VPS) insertion for primary communicating hydrocephalus. Cerebrospinal fluid cultures were positive. The previous VPS was removed, and after successful antibiotic treatment evidenced by repeated negative cerebrospinal fluid (CSF) cultures, we performed a ventriculosinus shunt operation. A postoperative computed tomography scan of the head showed an excessively contracted ventricular system, subdural hemorrhage, and effusion, indicating the occurrence of overdrainage.ConclusionsVentriculosinus shunt surgery is a feasible and reliable option for the treatment of hydrocephalus, especially for cases of failed VPS. However, there remains a risk of overdrainage occurring postsurgery, and this should be taken into consideration in clinical practice.Copyright © 2017 Elsevier Inc. All rights reserved.

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