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Chronic Otitis Media
Published in R James A England, Eamon Shamil, Rajeev Mathew, Manohar Bance, Pavol Surda, Jemy Jose, Omar Hilmi, Adam J Donne, Scott-Brown's Essential Otorhinolaryngology, 2022
Tympanosclerosis describes the deposition of calcium or bone at sites of previous middle ear inflammation. Usually it affects only the tympanic membrane (myringosclerosis) and is of no consequence. Rarely it may be found to affect the ossicles, often in an ear undergoing exploration for conductive hearing loss, causing fixation of the ossicular heads (treated with partial ossiculoplasty) or around the stapes footplate (usually causing surgery to be abandoned).
Otitis Media with Effusion
Published in John C Watkinson, Raymond W Clarke, Christopher P Aldren, Doris-Eva Bamiou, Raymond W Clarke, Richard M Irving, Haytham Kubba, Shakeel R Saeed, Paediatrics, The Ear, Skull Base, 2018
Hearing loss A study of 224 children following grommet insertion concluded that 25 years after surgical treatment for OME hearing was no different to age- and gender-matched controls. Neither myringotomy alone nor insertion of ventilation tubes resulted in a significant difference in long-term hearing level, compared to a gender-matched normative data set. Where myringosclerosis was present in ears following grommet insertion, there was a small associated loss (4–5 dB) in the high-frequency range. Where pars tensa atrophy occurred after grommet surgery, the long-term change in hearing was limited to an overall loss of 3–4 dB.177
Postero-superior tube in a grooved bone vs. transtympanic tube for middle ear ventilation: a retrospective study comparing outcomes in the Lebanese pediatric population
Published in Acta Oto-Laryngologica, 2022
Elie Bou Sanayeh, Charbel Medawar, Antoine Assaf, Souheil Hallit, Bassam Romanos
A significantly higher number of patients among the TGB group had major/complete closure of their ABG. This was achieved by leaving the TM intact during the procedure thus minimizing the risk of perforation. This will result in better vibration of the TM to adequately conduct the sound waves into the middle ear cavity. In contrast, a perforated TM will reduce the area needed to transmit sound pressure. This was also validated in our study by the fact that the small number of patients among the TGB group, in whom hearing did not, or has minimally improved, were those with TM retraction or myringosclerosis. The mean ABG following the TGB technique, in our case, was slightly lower than the 7.0 ± 9.2 dB reported by Yang et al. [20] when using the subannular technique, possibly for the same reason of leaving the TM intact.
Hyrtl’s fissures in cochlear implant surgery
Published in Cochlear Implants International, 2021
On examination, he had bilateral myringosclerosis. Examination of his vestibular system revealed a full range of external ocular movements, smooth pursuit and no nystagmus. Audiograms showed bilateral profound sensorineural hearing loss.