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Updated: Jul 13, 2026
Intrathecal Application of a Fluorescent Dye for the Identification of Cerebrospinal Fluid Leaks in Cochlear Malformation
Published on: February 29, 2020
Unilateral hearing loss following shunt placement for normal pressure hydrocephalus with a unilateral patent cochlear
Sun-Ho Lee1, Seong-Hyun Park, Jaechan Park
1Department of Neurosurgery, School of Medicine, Kyungpook National University, 50 Samduk-2-ga, Jung-gu, Daegu, 700-721, Republic of Korea.
Abstract:
Hearing loss in patients who have undergone shunt placement for a hydrocephalus is perhaps an underestimated complication rather than a rare event. There appears to be a correlation between the occurrence of hearing loss and patient characteristics consistent with excessive drainage of cerebrospinal fluid (CSF) and patent cochlear aqueduct (CA). We present the case of a 77-year-old man with unilateral dominant sensorineural hearing loss after a shunt placement for normal pressure hydrocephalus (NPH) combined with a patent cochlear aqueduct. Based on our experience and a review of the literature, we suggest an early restoration of the reduced CSF pressure using a programmable valve as a treatment strategy, which might prevent the persistent hearing loss.
