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The aim of this study is to report on ossicular necrosis in the middle ear occurring shortly after head injury.
Our sample included 3 males and 2 females aged 9 to 37 years who complained of unilateral hearing loss after a head trauma that had occurred 3 to 6 months previously. The tympanic membranes were intact, and a CT-scan did not show fracture...
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A non-progressive and conductive hearing loss with normal eardrum, but no history of trauma and infection, is highly suggestive of a congenital ossicular malformation. Among ossicular anomalies, stapes anomaly is the most common. The purpose of this study is to describe patterns of stapes anomaly and to analyze its surgical outcome with special ref...
Middle ear surgery techniques can improve hearing destroyed by disease, but results of treatment are difficult to predict. Therefore, researchers use a Laser Doppler Vibrometer to measure vibrations of human middle ear ossicles.
Measurements of ossicular chain vibrations are performed on fresh human temporal bone specimens using Laser Doppler Vibro...
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Background
Chronic suppurative otitis media (CSOM) is a leading disorder known for hearing loss. We aimed to investigate the associated determinant factors of CSOM with sensorineural hearing loss (SNHL).
Materials and Methods
A prospective observational study of CSOM was conducted at a tertiary care university hospital from December 2020 to December 2022. The study included 149 patients of either gender and unilateral disease who presented to the otorhinolaryngology outpatient door. All subjects underwent clinical examinations and pure-tone audiometry. Bone conduction thresholds for both affected and nonaffected ears at audible frequencies were taken to determine sensorineural hearing loss. The intraoperative visibility of ossicular status was assessed through the operation recordings.
Results
The mean age of the 79 males and 70 females was 26.54 ± 8.75 years. Sensorineural hearing loss was evidenced in 25.5% of cases; afterward, conductive and mixed hearing losses were found in 68.5% and 6% of individuals. It was found that females and the absence of cholesteatoma have a significant ( P < 0.05) association with SNHL, whereas hearing loss >56 dB had a highly significant ( P < 0.001) association with SNHL. We investigated the relationship of SNHL with the status of ossicles. Similarly, incus was the most common ossicle erosion associated with SNHL (10.6%), which was statistically significant ( P = 0.002).
Conclusions
We found that ossicular status, cholesteatoma, and grade of hearing loss were statistically significant and were associated with sensorineural hearing loss in CSOM.
Our objective is to report a rare case of stapes necrosis after placing a prosthesis. We assume the prosthesis caused a strangulation of the blood supply, which caused the stapes to fracture. To the best of our knowledge, this is the first report of stapes necrosis after the use of a clip-on prosthesis.
This retrospective study examined the etiology and treatment results for traumatic, conductive hearing loss in 22 patients who underwent surgery between 1998 and 2008 at Osaka Red Cross Hospital. All patients underwent computed tomography (CT) of the temporal bone preoperatively. The ear surgery comprised closure of the ruptured tympanic membranes and restoration of the sound-transmitting function of the ossicular chain. Their mean age was 30.3 years, and the average delay from injury until treatment was 6.0 years. Of the injuries due to foreign-body insertion, the most common cause was ear-pick injury. Incudostapedial disarticulation was the most common finding, which was diagnosed preoperatively using CT in seven cases and identified at surgery in 15 cases. Closure of the air-bone gap to within 10 and 20 dB was observed in 50.0 and 68.2% of the patients, respectively. The hearing threshold improved by 10 dB or more in 16 (72.7%) patients. If no improvement in hearing loss follows the absorption of hemotympanium or closure of an eardrum perforation, dislocation of the ossicular bones should be suspected. Ossicular reconstruction following trauma produces more stable and better hearing results, even after delayed treatment.
