Reversible Hearing Loss from Cerebellopontine Angle Tumors

Vellutini, Eduardo; Cruz, Oswaldo Laércio Mendonça; Velasco, Otavio P.; Miniti, Aroldo; Almeida, Gilberto Machado de

doi:10.1227/00006123-199102000-00024

Cited by 27 publications

(10 citation statements)

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“…In one deaf patient with a retromeatal tumor (Group 5), even dramatic hearing recovery to normal hearing was observed. Few case reports have previously demonstrated that hearing restoration can occur with CPA meningiomas, even in the face of profound preoperative deficit (4,7,18,35). In our view, these cases show that it is worth attempting hearing preservation in as many patients as possible, even in the case of bad or no clinical preoperative hearing.…”

Section: Discussionmentioning

confidence: 61%

Facial and Cochlear Nerve Function after Surgery of Cerebellopontine Angle Meningiomas

et al. 2005

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Although the outcome of facial and cochlear nerve function is different in CPA meningiomas, depending on the topographic classification of these tumors, preservation of the cochlear nerve is possible in every tumor group and should be attempted in every patient with CPA meningioma. It has to be kept in mind that recovery of hearing was also observed in patients with preoperative profound hearing deficits.

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Section: Discussionmentioning

confidence: 61%

Facial and Cochlear Nerve Function after Surgery of Cerebellopontine Angle Meningiomas

et al. 2005

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“…However, for the petroclival meningiomas a transpetrosal approach has recently proved to us to have major advantages. In the patient with no prospect of useful postoperative hearing, a translabyrinthine approach may be appropriate especially for the tumours involving the internal auditory meatus11 although it must always be remembered that hearing may occasionally improve or even return to normal after the resection of non-acoustic cerebellopontine angle tumours22 23 and destructive approaches must therefore be used selectively.…”

Section: Discussionmentioning

confidence: 99%

Clinical features and outcomes in patients with non-acoustic cerebellopontine angle tumours

Mallucci

Ward

Carney

et al. 1999

Journal of Neurology, Neurosurgery & Psychiatry

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Objectives-Non-acoustic tumours of the cerebellopontine angle diVer from vestibular schwannomas in their prevalence, clinical features, operative management, and surgical outcome. These features were studied in patients presenting to the regional neuro-otological unit. Methods-A retrospective analysis of clinical notes identified 42 patients with non-acoustic tumours of the cerebellopontine angle. Data were extracted regarding presenting clinical features, histopathological data after surgical resection, surgical morbidity and mortality, and clinical outcome (mean 32 months follow up). Results-The study group comprised 25 meningiomas (60%), 12 epidermoid cysts/ cholesteatomata (28%), and five other tumours. In patients with meningiomas, symptoms diVered considerably from patients presenting with vestibular schwannomas. Cerebellar signs were present in 52% and hearing loss in only 68%. Twenty per cent of patients had hydrocephalus at the time of diagnosis. After surgical resection, normal facial nerve function was preserved in 75% of cases. In the epidermoid group, fifth, seventh, and eighth nerve deficits were present in 42%, 33%, and 66% respectively. There were no new postoperative facial palsies. There were two recurrences (17%) requiring reoperation. Overall, there were two perioperative deaths from pneumonia and meningitis. Conclusions-Patients with non-acoustic lesions of the cerebellopontine angle often present with diVerent symptoms and signs from those found in patients with schwannomas. Hearing loss is less prevalent and cerebellar signs and facial paresis are more common as presenting features. Hydrocephalus is often present in patients presenting with cerebellopontine angle meningiomas. Non-acoustic tumours can usually be resected with facial nerve preservation. (J Neurol Neurosurg Psychiatry 1999;66:768-771)

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“…We do not favor sacrifice of the labyrinth to gain exposure, 29 because improvements in hearing have been reported after removal of these tumors. 10,28,32,36,37 Because schwannomas within the jugular foramen tend to displace the jugular bulb posteriorly, the suprajugular approach allows the surgeon to remove the tumor without opening the wall of the bulb.…”

Section: Neurosurg Focus / Volume 17 / August 2004mentioning

confidence: 99%

Surgical treatment of dumbbell-shaped jugular foramen schwannomas

Kadri¹,

Al‐Mefty²

2004

FOC

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Object Schwannomas of the jugular foramen are rare, comprising between 2 and 4% of intracranial schwannomas. The authors retrospectively analyzed their surgical experience with schwannomas of the lower cranial nerves that presented with intra- and extracranial extensions through an enlarged jugular foramen. The transcondylar suprajugular approach was used without sacrificing the labyrinth or the integrity of the jugular bulb. In this report the clinical and radiological features are discussed and complications are analyzed. Methods This retrospective study includes six patients (three women and three men, mean age 31.6 years) with dumbbell-shaped jugular foramen schwannomas that were surgically treated by the senior author during a 5.5-year period. One patient had undergone previous surgery elsewhere. Glossopharyngeal and vagal nerve deficits were the most common signs (appearing in all patients), followed by hypoglossal and accessory nerve deficits (66.6%). Two or more signs or symptoms were present in every patient. Three tumors presented with cystic degeneration. In four patients the jugular bulb was not patent on neuroimaging studies. The suprajugular approach was used in five patients; the origin of the tumor from the 10th cranial nerve could be defined in three of them. All lesions were completely resected. No death or additional postoperative cranial nerve deficits occurred in this series. Aspiration pneumonia developed in one patient. Preoperative deficits of the ninth and 10th cranial nerves improved in one third of the patients and half recovered mobility of the tongue. No recurrence was discovered during the mean follow-up period of 32.8 months. Conclusions With careful, extensive preoperative evaluation and appropriate planning of the surgical approach, dumbbell-shaped jugular foramen schwannomas can be radically and safely resected without creating additional neurological deficits. Furthermore, recovery of function in the affected cranial nerves can be expected.

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Reversible Hearing Loss from Cerebellopontine Angle Tumors

Cited by 27 publications

References 0 publications

Facial and Cochlear Nerve Function after Surgery of Cerebellopontine Angle Meningiomas

Facial and Cochlear Nerve Function after Surgery of Cerebellopontine Angle Meningiomas

Clinical features and outcomes in patients with non-acoustic cerebellopontine angle tumours

Surgical treatment of dumbbell-shaped jugular foramen schwannomas

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