Sudden Sensorineural Hearing Loss as Prodromal Symptom of Anterior Inferior Cerebellar Artery Infarction

Auditory dysfunction is related to large/small vessel occlusions and hemorrhage. Sudden sensorineural hearing loss (SSNHL) frequently occurs with anterior inferior cerebellar artery occlusion proximal to the internal auditory artery. Moreover, SSNHL has various pathogenetic mechanisms, the main proposed mechanisms being vascular disease, membrane ruptures, infection, and autoimmunity. Tumor necrosis factor (TNF) is an important cytokine in the inflammation process of cerebrovascular diseases. In the current study, the possible effects of polymorphisms in TNF-α and TNF-β genes on SSNHL are evaluated. Two genetic polymorphisms in the TNF locus (TNF-α —308 G - ->A and TNF-β +252 A - ->G) were investigated as risk factors for SSNHL by determining their prevalence in 97 SSNHL patients and in 587 controls. A significant increase was found for the TNF-β allele 1 in SSNHL patients compared with the controls (χ 2 = 7.251, P = .007, odds ratio [OR] = 1.534, confidence interval [CI] = 1.12-2.10). These findings suggest that the TNF-β +252 locus plays an important role in the etiopathogenesis of SSNHL.

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The Clinical Correlation between Anterior Inferior Cerebellar Artery and Sudden Sensorineural Hearing Loss

Korean Journal of Otorhinolaryngology - Head and Neck Surgery ◽

10.3342/kjorl-hns.2009.52.8.660 ◽

2009 ◽

Vol 52 (8) ◽

pp. 660 ◽

Cited By ~ 1

Author(s):

Young Soo Kim ◽

Sung Won Choi ◽

Young Ki Woo ◽

Bo Sung Jeon ◽

Min Han Kim ◽

...

Keyword(s):

Hearing Loss ◽

Sensorineural Hearing Loss ◽

Sudden Sensorineural Hearing Loss ◽

Sensorineural Hearing ◽

Anterior Inferior Cerebellar Artery ◽

Clinical Correlation ◽

Cerebellar Artery

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Acute unilateral sensorineural hearing loss associated with anabolic steroids and polycythaemia: case report

The Journal of Laryngology & Otology ◽

10.1017/s0022215115003187 ◽

2015 ◽

Vol 130 (3) ◽

pp. 309-313 ◽

Cited By ~ 2

Author(s):

T Tikka ◽

N Mistry ◽

A Janjua

Keyword(s):

Risk Factors ◽

Hearing Loss ◽

Case Report ◽

Sensorineural Hearing Loss ◽

Anabolic Steroids ◽

Sensorineural Hearing ◽

Anterior Inferior Cerebellar Artery ◽

Coronary Risk Factors ◽

Management Protocol ◽

Cerebellar Artery

AbstractBackground:Unilateral sudden sensorineural hearing loss due to an infarct in the vertebrobasilar system has been widely reported. Most patients have a background of traditional coronary risk factors related to these cerebrovascular episodes.Case report:A 32-year-old male, a regular user of anabolic steroids, presented to the emergency department with unilateral sensorineural hearing loss and symptoms suggestive of an infarct of the anterior inferior cerebellar artery but in the absence of risk factors for ischaemic stroke.Results:Magnetic resonance imaging confirmed the presence of infarction in the region supplied by the anterior inferior cerebellar artery. Polycythaemia was found on haematological analysis, which we believe was secondary to the use of anabolic steroids. The patient was commenced on aspirin as per the stroke management protocol. There was resolution of neurological symptomatology six weeks after the episode, but no improvement in hearing.Conclusion:To our knowledge, this is the first case report of unilateral sensorineural hearing loss secondary to the use of anabolic steroids causing polycythaemia. This cause should be considered in the differential diagnosis of patients presenting with sensorineural hearing loss, especially in young males, when no other risk factors can be identified.

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Sudden Sensorineural Hearing Loss Associated with the Presence of a Vascular Loop in the Internal Auditory Canal. Case Report

Acta Medica Transilvanica ◽

10.2478/amtsb-2021-0055 ◽

2021 ◽

Vol 26 (3) ◽

pp. 65-66

Author(s):

Simona Șerban ◽

Arthur Weisman

Keyword(s):

Hearing Loss ◽

Sensorineural Hearing Loss ◽

Internal Auditory Canal ◽

Sudden Sensorineural Hearing Loss ◽

Sensorineural Hearing ◽

Type Ii ◽

Depth Of Penetration ◽

Cerebellar Artery ◽

Radiological Classification ◽

Vascular Loop

Abstract The vascular loop refers to a trajectory abnormality of the antero-inferior cerebellar artery or its branch in the internal auditory canal. The Chavda radiological classification identifies three types of trajectory depending on the depth of penetration of the loop at the level of the internal auditory canal. The article presents the case of a 26-year-old patient admitted to the ENT department for left ear sudden sensorineural hearing loss and dizziness. The 3D Fiesta-C axial sequence MRI shows the presence of the vascular loop inside the internal auditory canal, without exceeding half of it. The hearing loss had an unfavourable evolution, without recovery after treatment with steroids and vasodilators. Sudden sensorineural hearing loss may be a consequence of the presence of the vascular loop in the internal auditory canal. The prognosis for recovery from hearing loss is poor if the loop is at least type II.

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