Consequences of Mastoidectomy on Bone Conducted Sound Based on Simulations in a Whole Human Head: Hypothesis:
The aim of this study is to investigate how a mastoidectomy surgery affects bone conduction (BC) sound transmission using a whole head finite element model.
Background:
Air conduction (AC) and BC hearing thresholds are normally used to evaluate the effect of an ear surgery. It is then assumed that the BC hearing thresholds are unaffected by the surgery. Moreover, BC hearing aids are used in cases of unilateral or conductive hearing loss in heads that have undergone a mastoidectomy surgery. Given the invasiveness of the surgery, the BC hearing sensitivity may be altered by the surgery itself.
Methods:
Two types of mastoid surgery, canal wall up and canal wall down, with and without obliteration, were simulated in a whole head finite element model for BC stimulation, the LiUHead. The evaluations were conducted for two different methods of applying the BC sound, at the skin surface (B71 transducer) and directly at the bone (BC hearing aid).
Results:
The results showed that a mastoidectomy surgery increased the cochlear vibration responses with BC stimulation. The increase was less than 5 dB, except for a canal wall down surgery which gave an increase of up to 8 dB at frequencies close to 10 kHz. The increase was greater at the ipsilateral cochlea compared with the contralateral cochlea.
Conclusion:
A mastoidectomy surgery increases the vibration at both cochleae for BC stimulation and the increase generally improved with frequency. Obliteration of the surgical cavity does not influence BC sound transmission.
Σφακιανάκης Αλέξανδρος
ΩτοΡινοΛαρυγγολόγος
Αναπαύσεως 5 Άγιος Νικόλαος
Κρήτη 72100
00302841026182
00306932607174
alsfakia@gmail.com
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- Focused ultrasound robotic system for v
- Macrophage HIF-1{alpha} Is an Independent Prognost...
- Radiation with STAT3 Blockade Triggers Dendritic C...
- Rhabdoid Tumors Are Sensitive to the Protein-Trans...
- Tumor Subtype Determines Therapeutic Response to C...
- Editor's Note: The Pivotal Role of Integrin {beta}...
- Clinical variability in spinal muscular atrophy ty...
- Clinical Balance Testing to Screen for Patients Wi...
- The effectiveness of radiotherapy in the treatment...
- Prophet forecasting model: a machine learning appr...
- TET1 may contribute to hypoxia-induced epithelial ...
- Correlation of Radiologic Versus Endoscopic Visual...
- Consequences of Mastoidectomy on Bone Conducted So...
- Laterality of Audiovestibular Symptoms Predicts La...
- Visualizing Affected Nerve Bundles of Cranial Nerv...
- Malformations Associated With Pediatric Congenital...
- Definitive treatment of sporadic vestibular schwan...
- Long-term survival after cemented versus uncemente...
- giant retroperitoneal neurilemmoma
- Resveratrol prevents TNF-α-induced VCAM-1 and ICAM...
- Vocal trauma especially in females and children is...
- Brazilian butt lift (BBL) surgery
- Adipose-derived stem cell enrichment is counter-pr...
- Cognitive, language and motor development of infan...
- Prolonged Survival of a Patient with Chronic Myelo...
- Correlation between the Epworth Sleepiness Scale a...
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- Flumatinib versus Imatinib for Newly Diagnosed Chr...
- Immediate inhibition of spinal secretory phospholi...
- Eriodictyol produces antidepressant-like effects a...
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