Bilateral objective tinnitus secondary to congenital middle-ear myoclonus

Howsam, G D; Sharma, Ayushree; Lambden, S P; Fitzgerald, John E.; Prinsley, Peter

doi:10.1258/0022215054273223

Cited by 29 publications

(14 citation statements)

References 5 publications

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“…There have been several case reports showing outcomes following tendon resection for MEMT [Abdul-Baqi, 2004;Cohen and Perez, 2003;Howsam et al, 2005;Zipfel et al, 2000], and most of these case studies reported full resolution of the symptoms after surgery. To the best of our knowledge, this study reports the results of the largest case series of METR which demonstrates convincing results of this surgical therapy.…”

Section: Discussionmentioning

confidence: 99%

Long-Term Effects of Middle Ear Tendon Resection on Middle Ear Myoclonic Tinnitus, Hearing, and Hyperacusis

et al. 2017

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Objective: To evaluate the therapeutic effects of middle ear tendon resection (METR) on middle ear myoclonic tinnitus (MEMT) and to investigate its long-term effects on hearing and hyperacusis. Materials and Methods: Thirty-seven patients with MEMT with a mean age of 33.2 ± 11.8 years were included in this study. METR was performed on all 37 MEMT patients (41 ears) between November 2004 and August 2016. The mean follow-up period was 16.1 months. We examined changes in tinnitus and accompanying stress and depression in patients after surgery, and examined the hearing changes and the occurrence of complications including hyperacusis. Results: After surgery, 34 (91.9%) patients exhibited complete resolution of MEMT during their follow-up period, and 3 patients showed a partial response. The mean Visual Analog Scale (VAS) scores for tinnitus severity, the Tinnitus Handicap Inventory (THI), and stress index decreased significantly after surgery (p < 0.05, paired t test). No patient developed hearing loss or hyperacusis following surgery. Preexisting hyperacusis even improved in most of the patients with intractable MEMT after surgery. Recurrence of the symptom occurred in only 1 patient, who underwent revision surgery with improvement. We observed 1 case of postoperative delayed facial palsy with complete recovery in 2 weeks. Conclusions: METR seems to be an effective and safe treatment option for intractable MEMT, considering its high control rate of tinnitus and no long-term harmful effects on hearing and hyperacusis.

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Section: Discussionmentioning

confidence: 99%

Long-Term Effects of Middle Ear Tendon Resection on Middle Ear Myoclonic Tinnitus, Hearing, and Hyperacusis

et al. 2017

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“…Due to vascular anomalies (Chandler, 1983), vibrations due to pulsatile blood flow near the middle or inner ear (Weissman and Hirsch, 2000;Liyanage et al, 2006;Sonmez et al, 2007) can become audible. Also, involuntary contraction of muscles in the middle ear (Abdul-Baqi, 2004;Howsam et al, 2005) or in palatal tissue (Fox and Baer, 1991) may cause objective tinnitus. Objective tinnitus is rare and has been described only in case reports.…”

Section: Tinnitus Definition and Prevalencementioning

confidence: 99%

Neural activity underlying tinnitus generation: Results from PET and fMRI

2009

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“…Muscular tinnitus is another cause. It has two forms: middle ear tinnitus and palatal myoclonus, both of which are associated with rhythmic contractions of muscles around the skull base and may produce objective tinnitus [44]. A patulous Eustachian tube may produce a variety of extraneous sounds [8].…”

Section: Diseases Without Radiologic Manifestationsmentioning

confidence: 99%