Journal of Neurological Sciences (Turkish) 2016 , Vol 33 , Num 3
Overdrainage by Lumboperitoneal Shunting May Cause Intracranial Hypotension Resulting in Permanent Deafness
1Ankara University, School of Medicine, Department of Neurology, Sıhhıye, Ankara, Turkey
2Ankara University, School of Medicine, Department of Radiology, Sıhhıye, Ankara, Turkey
3Ankara University, School of Medicine, Department of Neurosurgery, Sıhhıye, Ankara, Turkey
Intracranial hypotension (IH) can develop spontaneously or following a spinal intervention such as lumbar puncture, surgery and shunt procedure or a trauma. IH has a wide range of clinical presentation. Although orthostatic headache is the most frequent component of IH symptomatology, it might not be seen in some patients. We present a 27-year-old woman with nausea, vomiting and bilateral severe hearing loss following a lumboperitoneal shunt procedure after she was diagnosed with idiopathic intracranial hypertension. Her audiogram showed bilateral severe sensorineural hearing loss and magnetic resonance imaging showed displacement of cerebellar tonsils 10 mm inferior of foramen magnum, diffuse dural enhancement and pachymeningeal thickening. Cerebrospinal fluid (CSF) opening pressure was 0-1 cmH2O. The patient was diagnosed with intracranial hypotension. After shunt removal surgery; her nausea and vomiting resolved completely while her hearing loss persisted. Permanent hearing loss is infrequent but one of the serious complications of CSF overdrainage after shunt procedures. Keywords : Intracranial Hypotension, Permanent Deafness, Lumboperitoneal Shunting, Sensorineural Hearing Loss