scholarly journals Contralateral Cochlear Labyrinthine Concussion without Temporal Bone Fracture: Unusual Posttraumatic Consequence

2016 ◽  
Vol 2016 ◽  
pp. 1-4 ◽  
Author(s):  
I. M. Villarreal ◽  
D. Méndez ◽  
J. M. Duque Silva ◽  
P. Ortega del Álamo
Keyword(s):  
Hearing Loss ◽  
Head Injury ◽  
Sensorineural Hearing Loss ◽  
Temporal Bone ◽  
Head Trauma ◽  
Bone Fractures ◽  
Contralateral Side ◽  
Sensorineural Hearing ◽  
Temporal Bone Fracture ◽  
Blunt Head Trauma

Introduction. Labyrinthine concussion is a term used to describe a rare cause of sensorineural hearing loss with or without vestibular symptoms occurring after head trauma. Isolated damage to the inner ear without involving the vestibular organ would be designated as a cochlear labyrinthine concussion. Hearing loss is not a rare finding in head trauma that involves petrous bone fractures. Nevertheless it generally occurs ipsilateral to the side of the head injury and extraordinarily in the contralateral side and moreover without the presence of a fracture.Case Report. The present case describes a 37-year-old patient with sensorineural hearing loss and tinnitus in his right ear after a blunt head trauma of the left-sided temporal bone (contralateral). Otoscopy and radiological images showed no fractures or any abnormalities. A severe sensorineural hearing loss was found in his right ear with a normal hearing of the left side.Conclusion. The temporal bone trauma requires a complete diagnostic battery which includes a neurotologic examination and a high resolution computed tomography scan in the first place. Hearing loss after a head injury extraordinarily occurs in the contralateral side of the trauma as what happened in our case. In addition, the absence of fractures makes this phenomenon even more unusual.

scholarly journals Perilymphatic fistula and pneumolabyrinth without temporal bone fracture: a rare entity

2019 ◽  
Vol 12 (3) ◽  
pp. e228457 ◽  
Author(s):  
Ana Sousa Menezes ◽  
Daniela Ribeiro ◽  
Daniel Alves Miranda ◽  
Sara Martins Pereira
Keyword(s):  
Hearing Loss ◽  
Sensorineural Hearing Loss ◽  
Temporal Bone ◽  
Bone Fracture ◽  
Round Window ◽  
Sensorineural Hearing ◽  
Temporal Bone Fracture ◽  
Perilymphatic Fistula ◽  
Hearing Thresholds ◽  
Post Traumatic

Post-traumatic pneumolabyrinth is an uncommon clinical entity, particularly in the absence of temporal bone fracture. We report the case of a patient who presented to our emergency department with a headache, sudden left hearing loss and severe dizziness which began after a traumatic brain injury 3 days earlier. On examination, the patient presented signs of left vestibulopathy, left sensorineural hearing loss and positive fistula test, normal otoscopy and without focal neurological signs. The audiometry confirmed profound left sensorineural hearing loss. Cranial CT revealed a right occipital bone fracture and left frontal subdural haematoma, without signs of temporal bone fracture. Temporal bone high-resolution CT scan revealed left pneumolabyrinth affecting the vestibule and cochlea. Exploratory tympanotomy revealed perilymphatic fistula at the location of the round window. The sealing of defect was performed using lobule fat and fibrin glue. He presented complete resolution of the vestibular complaints, though the hearing thresholds remained stable.

Cochlear Implantation in Patients With Bilateral Severe Sensorineural Hearing Loss After Major Blunt Head Trauma

2011 ◽  
Vol 32 (1) ◽  
pp. 48-54 ◽  
Author(s):  
Simon L. Greenberg ◽  
David Shipp ◽  
Vincent Y. Lin ◽  
Joseph M. Chen ◽  
Julian M. Nedzelski
Keyword(s):  
Hearing Loss ◽  
Sensorineural Hearing Loss ◽  
Head Trauma ◽  
Cochlear Implantation ◽  
Sensorineural Hearing ◽  
Blunt Head Trauma

Using temporal bone computed tomography to predict sensorineural hearing loss in otic capsule-sparing temporal bone fracture

Injury ◽  
2017 ◽  
Vol 48 (12) ◽  
pp. 2879-2883 ◽  
Author(s):  
Seog Kyun Mun ◽  
Kyung Hyun Oh ◽  
Young Ho Hong ◽  
Hyun Jin Min ◽  
Kyung Soo Kim ◽  
...  
Keyword(s):  
Computed Tomography ◽  
Hearing Loss ◽  
Sensorineural Hearing Loss ◽  
Temporal Bone ◽  
Bone Fracture ◽  
Sensorineural Hearing ◽  
Otic Capsule ◽  
Temporal Bone Fracture

Bilateral temporal bone fractures associated with bilateral profound sensorineural hearing loss

2015 ◽  
Vol 92 (1087) ◽  
pp. 302-303 ◽  
Author(s):  
Osama Kanavati ◽  
Ali A Salamat ◽  
Ting Yang Tan ◽  
William Hellier
Keyword(s):  
Hearing Loss ◽  
Sensorineural Hearing Loss ◽  
Temporal Bone ◽  
Bone Fractures ◽  
Sensorineural Hearing

Imaging case study: enlarged superior vestibular nerve canal with sensorineural hearing loss

2008 ◽  
Vol 123 (5) ◽  
pp. 572-574 ◽  
Author(s):  
M I Redleaf ◽  
J M Pinto ◽  
J J Klemens
Keyword(s):  
Computed Tomography ◽  
Hearing Loss ◽  
Case Report ◽  
Sensorineural Hearing Loss ◽  
Temporal Bone ◽  
Male Infant ◽  
Vestibular Nerve ◽  
Sensorineural Hearing ◽  
Inferior Vestibular Nerve

AbstractObjective:We report a new temporal bone anomaly – an enlarged superior vestibular nerve canal – associated with sensorineural hearing loss.Case report:A 10-month-old male infant presented with sensorineural hearing loss together with bilaterally enlarged superior vestibular nerve canals. Compared with published temporal bone computed tomography measurements, our patient's canals were normal in length but approximately double the normal width. In addition, careful review of the imaging did not clearly identify a bony wedge between the superior and inferior vestibular nerve canals.Conclusion:Enlarged superior vestibular nerve canal malformation may be a marker for sensorineural hearing loss. Increased vigilance amongst otologists may establish the prevalence of this anomaly and its possible effects on hearing.

Dynamics of Sensorineural Hearing Loss after Head Trauma

2002 ◽  
Vol 23 (3) ◽  
pp. 312-315 ◽  
Author(s):  
Samuel Segal ◽  
Ephraim Eviatar ◽  
Leonard Berenholz ◽  
Alexander Kessler ◽  
Nathan Shlamkovitch
Keyword(s):  
Hearing Loss ◽  
Sensorineural Hearing Loss ◽  
Head Trauma ◽  
Sensorineural Hearing

Enlarged Vestibular Aqueduct in Pediatric SNHL

2008 ◽  
Vol 139 (2_suppl) ◽  
pp. P104-P104
Author(s):  
Karuna Dewan ◽  
Judith C. Lieu
Keyword(s):  
Hearing Loss ◽  
Cochlear Implant ◽  
Sensorineural Hearing Loss ◽  
Temporal Bone ◽  
Pediatric Population ◽  
Sensorineural Hearing ◽  
Enlarged Vestibular Aqueduct ◽  
Vestibular Aqueduct ◽  
Current Estimation ◽  
Temporal Bone Ct

Problem Current diagnostic criteria for enlarged vestibular aqueduct (EVA), >1.5mm at the midpoint, was determined in the pre-CT era by Valvassori. Recent research, based on 73 CTs from children with no sensorineural hearing loss (SNHL), suggests new criteria for the diagnosis of EVA—midpoint of >0.9mm or operculum >1.9mm. We evaluated the proposed new radiographic, Cincinnati criteria for the diagnosis of EVA. Methods In a retrospective cohort study, we reviewed temporal bone CT scans of 130 pediatric cochlear implant recipients to measure the vestibular aqueduct midpoint and opercular width and 5 other temporal bone dimensions. Results The Cincinnati criteria identified 44% of patients with EVA versus 16% with the Valvassori criterion (P < 0.01). Of those with EVA, 45% were unilateral and 55% were bilateral using Cincinnati criteria; 64% were unilateral and 36% bilateral using Valvassori criterion (P<0.01). Right and left side measurements of vestibular aqueduct operculum (r=0.67, P<0.01) and midpoint (r=0.58, P<0.01) correlated substantially. The Cincinnati criteria diagnosed 70 ears with EVA classified as normal using the Valvassori criterion (P<0.01). Of these 70 ears, 59 had no other medical explanation for their hearing loss. Conclusion The Cincinnati criteria identified a large percentage of pediatric cochlear implant patients with EVA who otherwise had no known etiology for their deafness. Significant correlations between right and left side measurements suggest that EVA may not be morphologically asymmetric as previously thought. Significance The Cincinnati criteria potentially alters the current estimation of the most common etiologies of bilateral severe-to-profound sensorineural hearing loss in the pediatric population. Support KD is a Doris Duke Clinical Research Fellow, supported by the Doris Duke Foundation.

scholarly journals Radiological Assessment of the Indian Children with Congenital Sensorineural Hearing Loss

2014 ◽  
Vol 2014 ◽  
pp. 1-7 ◽  
Author(s):  
Sangeet Kumar Agarwal ◽  
Satinder Singh ◽  
Samarjit Singh Ghuman ◽  
Shalabh Sharma ◽  
Asish Kr. Lahiri
Keyword(s):  
Hearing Loss ◽  
Sensorineural Hearing Loss ◽  
Inner Ear ◽  
Temporal Bone ◽  
Congenital Anomalies ◽  
Tertiary Care ◽  
Sensorineural Hearing ◽  
Tertiary Care Centre ◽  
Indian Children ◽  
3D Scan

Introduction. Congenital sensorineural hearing loss is one of the most common birth defects with incidence of approximately 1 : 1000 live births. Imaging of cases of congenital sensorineural hearing loss is frequently performed in an attempt to determine the underlying pathology. There is a paucity of literature from India and for this reason we decided to conduct this study in Indian context to evaluate the various cochleovestibular bony and nerve anomalies by HRCT scan of temporal bone and MRI with 3D scan of inner ear in a tertiary care centre.Material and Methods. A total of 280 children with congenital deafness (158 males and 122 females), between January 2002 to June 2013 were included in the study and they were assessed radiologically by HRCT scan of temporal bone and MRI with 3D scan of inner ear.Results. In the present study we found various congenital anomalies of bony labyrinth and vestibulocochlear nerve. Out of 560 inner ears we found 78 anomalous inner ears. Out of these 78 inner ears 57 (73%) had cochlear anomaly, 68 (87.1%) had anomalous vestibule, 44 (56.4%) had abnormal vestibular aqueduct, 24 (30.7%) had anomalous IAC, and 23 (29.4%) had abnormal cochleovestibular nerves.Conclusion. In present study, we found lower incidences of congenital anomalies comparative to existing literature.

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