scholarly journals Role of Radiologic Imaging in Otosclerosis

2022 ◽  
Author(s):  
Paul M. Manning ◽  
Michael R. Shroads ◽  
Julie Bykowski ◽  
Mahmood F. Mafee
Keyword(s):  
Hearing Loss ◽  
Conductive Hearing Loss ◽  
Ct Imaging ◽  
Imaging Evaluation ◽  
Radiologic Imaging ◽  
Operative Planning ◽  
Operative Assessment ◽  
Conductive Hearing ◽  
Variant Anatomy

Abstract Purpose of Review To review the role of imaging in otosclerosis with an emphasis on pre- and post-operative imaging evaluation. Recent Findings Pre-operative CT imaging can help define the extent of bone involvement in otosclerosis and may help avoid surgical complications due to variant anatomy or unsuspected alternative causes of conductive hearing loss. In patients with recurrent hearing loss after surgery, CT imaging can clarify prosthesis position and re-assess anatomy. Summary CT imaging complements otologic exam and audiometry findings in patients with suspected otosclerosis, for pre-operative planning, and post-operative assessment for patients with recurrent symptoms.

Language Growth in Children With Expressive Language Delay

PEDIATRICS ◽  
1990 ◽  
Vol 85 (6) ◽  
pp. 1130-1131
Author(s):  
JANET E. FISCHEL ◽  
GROVER J. WHITEHURST ◽  
CHRISTOPHER LONIGAN ◽  
REBECCA SEMENAK JORDON
Keyword(s):  
Hearing Loss ◽  
Conductive Hearing Loss ◽  
Expressive Language ◽  
Language Delay ◽  
Language Growth ◽  
Conductive Hearing ◽  
Expressive Language Delay

In Reply.— Dr Ruben raises concerns about our publication in this journal on language growth in children with expressive language delay.1 Ruben's position is that hearing loss accounts "for much of the expressive language delay seen in children at this age" and that, because we did not include that variable in our study, this "brings into question any conclusions drawn from their data." We are pleased that Ruben has raised the issue of the role of conductive hearing loss because we have gathered relevant data since the publication he questions.

Predictive role of Carhart's notch in pre-operative assessment for middle-ear surgery

2006 ◽  
Vol 121 (3) ◽  
pp. 219-221 ◽  
Author(s):  
H Yasan
Keyword(s):  
Hearing Loss ◽  
Otitis Media ◽  
Middle Ear ◽  
Pure Tone ◽  
Conductive Hearing Loss ◽  
Pure Tone Audiometry ◽  
Stapes Footplate ◽  
Predictive Role ◽  
Conductive Hearing

Objectives: To evaluate the predictive role of the audiometric Carhart's notch for the assessment of middle-ear pathology prior to surgical intervention.Method: In this retrospective analysis, a total of 315 operated ears of 305 patients were evaluated regarding their pre-operative pure tone audiograms and peri-operative findings. The probable relationship between the middle-ear pathologies found and the Carhart's notch found on pre-operative pure tone audiometry was investigated. Patients with conductive hearing loss who obtained at least a 10 dB improvement (at 1 and 2 kHz frequencies) in their bone conduction threshold post-operatively were included in the Carhart's notch group. The pathologies underlying Carhart's notch were compared.Results: Three hundred and fifteen ears of 305 consecutive patients with conductive hearing loss were operated on due to middle-ear pathology. In patients with otosclerosis and tympanosclerosis, a Carhart's notch was seen at 2 kHz in 28 (93 per cent) patients but at 1 kHz in only two (7 per cent). However, in patients with chronic otitis media, a Carhart's notch was seen at 1 kHz in 10 (55 per cent) patients and at 2 kHz in eight (45 per cent) patients.Conclusions: Otitis media with effusion, tympanosclerosis and congenital malformations should be considered in the differential diagnosis of a patient with a Carhart's notch seen on pure tone audiometry. A Carhart's notch at 2 kHz indicates stapes footplate fixation, whereas one at 1 kHz indicates a mobile stapes footplate; the footplate mobility can thus be predicted pre-operatively.

scholarly journals Fenestral Otosclerosis: A Subtle Lesion Easily Missed

2021 ◽  
Vol 36 (1) ◽  
pp. 65
Author(s):  
Nathaniel Yang
Keyword(s):  
Hearing Loss ◽  
Conductive Hearing Loss ◽  
Imaging Study ◽  
Oval Window ◽  
Ct Imaging ◽  
Middle Ear Surgery ◽  
Focal Region ◽  
Slice Thickness ◽  
Common Location ◽  
Conductive Hearing

A 29-year-old Filipina of Chinese descent presented with progressive bilateral conductive hearing loss of several years’ duration. While working overseas, she consulted with an otolaryngologist and underwent computerized tomographic (CT) imaging of the temporal bone as part of her evaluation. She was informed that no abnormalities were identified in the imaging exam, and she was offered exploratory middle ear surgery with possible stapes surgery. She then sought a second opinion, with the intention of obtaining a more definitive diagnosis prior to any invasive medical intervention. A review of the CT imaging study, with particular emphasis on looking for radiologic evidence of otosclerosis, revealed the presence of a focal region of bone demineralization in the region of the fissula ante fenestram. (Figure 1) This finding is consistent with a diagnosis of fenestral otosclerosis.   Otosclerosis is one of the main differential diagnoses for a patient presenting with bilateral conductive hearing loss and no other visible evidence of otologic disease. Although it is more common in the Caucasian population,1 it must remain as one of the considerations in the Asiatic population, including Filipinos. High-resolution CT is the imaging technique of choice in the evaluation of conductive hearing loss.2 When evaluating a scan for evidence of otosclerosis, it must be remembered that the most common location of involvement is the bone just anterior to the oval window, in a small cleft known as the fissula ante fenestram. It is this relationship that gives rise to the term fenestral otosclerosis. The fissula is a thin fold of connective tissue extending through the endochondral layer, located in the region between the oval window and the cochleariform process, where the tensor tympani tendon turns laterally toward the malleus.3 (Figure 2) Since the average length of the stapes footplate along its short axis is around 1.5 mm, it is highly recommended that submillimeter image slice thickness be routinely ordered for the CT imaging study, in order to maximize the opportunity to identify the oftentimes small and subtle areas of focal demineralization. At a slice thickness of 0.5 mm, such a lesion might only be identified by an astute clinician in 2-3 sequential axial imaging slices.

scholarly journals Demineralization of the Otic Capsule in Otosclerosis (Otospongiosis)

2009 ◽  
Vol 24 (1) ◽  
pp. 35-36
Author(s):  
Nathaniel W. Yang
Keyword(s):  
Hearing Loss ◽  
Temporal Bone ◽  
Middle Ear ◽  
Conductive Hearing Loss ◽  
Ct Imaging ◽  
Focal Region ◽  
Otic Capsule ◽  
Organ Systems ◽  
Temporal Bone Ct ◽  
Conductive Hearing

A 34-year old Filipina presents with bilateral progressive hearing loss and tinnitus of three years' duration. Otologic examination reveals normal external auditory canals and tympanic membranes, with good tympanic membrane mobility on pneumatic otoscopy. Standard audiometric examination shows a bilateral moderate conductive hearing loss. Temporal bone CT imaging reveals the presence of a focal region of bone demineralization involving the dense bone of the otic capsule surrounding the cochlear lumen (Figure 1), a finding consistent with a diagnosis of active otospongiosis.  The diagnosis was confirmed by visualization of an otosclerotic focus during transcanal middle ear exploration, where stapedectomy with placement of a stainless steel stapes prosthesis was performed. Otosclerosis is a condition unique to the temporal bone characterized by abnormal resorption and deposition of bone in the otic capsule and ossicles. Although it occurs more rarely in Asiatic populations compared to Europeans, Americans of Caucasian origin and Indians, it must be considered in patients presenting with primarily conductive hearing loss, especially if there is bilateral involvement. CT imaging of the temporal bone may help to differentiate this condition from other causes of conductive hearing loss, such as tympanosclerosis and bony epitympanic fixation of the ossicular chain from chronic infection and inflammation of the middle ear. One must be cognizant of the fact that a normal temporal bone CT scan does not rule a diagnosis of otosclerosis, because an inactive, highly sclerotic focus that appears as a uniform hyperdense mass may be difficult to distinguish from the normal compact labyrinth capsule (1). Other causes of otic capsule demineralization include osteogenesis imperfecta, Paget disease, otosyphilis, and Camurati-Engelmann disease. These may be differentiated by their individually characteristic patterns of bone involvement and evidence of disease in other organ systems.2  

scholarly journals Cone-Beam CT compared to Multi-slice CT for the diagnostic analysis of conductive hearing loss, a pilot study

2016 ◽  
Vol 130 (S3) ◽  
pp. S188-S188
Author(s):  
Pieter Kemp ◽  
Jiska van Stralen ◽  
Pim de Graaf ◽  
Erwin Berkhout ◽  
Jan Wolff ◽  
...  
Keyword(s):  
Hearing Loss ◽  
Pilot Study ◽  
Conductive Hearing Loss ◽  
Cone Beam Ct ◽  
Cone Beam ◽  
Diagnostic Analysis ◽  
Conductive Hearing

Long-term Compliance and Satisfaction With Percutaneous Bone Conduction Devices in Patients With Congenital Unilateral Conductive Hearing Loss

2015 ◽  
Vol 36 (5) ◽  
pp. 826-833 ◽  
Author(s):  
Rik C. Nelissen ◽  
Emmanuel A. M. Mylanus ◽  
Cor W. R. J. Cremers ◽  
Myrthe K. S. Hol ◽  
Ad F. M. Snik
Keyword(s):  
Hearing Loss ◽  
Conductive Hearing Loss ◽  
Bone Conduction ◽  
Conductive Hearing

scholarly journals Successive ipsilateral surgery of Vibrant Soundbridge and Bonebridge devices for congenital bilateral conductive hearing loss: a case report

2020 ◽  
Vol 48 (12) ◽  
pp. 030006052097228
Author(s):  
Yujie Liu ◽  
Ran Ren ◽  
Shouqin Zhao
Keyword(s):  
Hearing Loss ◽  
Case Report ◽  
Conductive Hearing Loss ◽  
Vibrant Soundbridge ◽  
Patient’S Experience ◽  
Hearing Devices ◽  
Conductive Hearing ◽  
Subjective Outcomes

The Bonebridge and Vibrant Soundbridge systems are semi-implanted hearing devices, which have been widely applied in patients with congenital conductive hearing loss. However, comparison between these two hearing devices is rare, especially in the same patient. We report a 23-year-old man who underwent successive implantation of Vibrant Soundbridge and Bonebridge devices in the same ear because of dysfunction of the Vibrant Soundbridge. We provide insight on the patient’s experience and compare the audiological and subjective outcomes of satisfaction.

Unexplained Conductive Hearing Loss

1980 ◽  
Vol 73 (3) ◽  
pp. 335-338 ◽  
Author(s):  
FRED H. BESS ◽  
G. W. MILLER ◽  
MICHAEL E. GLASSCOCK ◽  
GENE W. BRATT
Keyword(s):  
Hearing Loss ◽  
Conductive Hearing Loss ◽  
Conductive Hearing
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