Publications by authors named "Forton G"

Objectives: Although vestibular deficits are more prevalent in hearing-impaired children and can affect their development on many levels, a pediatric vestibular assessment is still uncommon in clinical practice. Since early detection may allow for timely intervention, this pioneer project has implemented a basic vestibular screening test for each six-month-old hearing-impaired infant in Flanders, Belgium. This study aims to report the vestibular screening results over a period of three years and to define the most important risk factors for abnormal vestibular screening results.

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Purpose: To evaluate the efficacy and safety of a titanium total prosthesis (TORP) in ossicular chain reconstruction.

Methods: Retrospective analysis of 113 cases of total ossicular chain reconstruction performed by a single surgeon between 2006 and 2018. Follow-up lasted until January 2020.

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The French society of clinical biology "Biochemical markers of COVID-19" has set up a working group with the primary aim of reviewing, analyzing and monitoring the evolution of biological prescriptions according to the patient's care path and to look for markers of progression and severity of the disease. This study covers all public and private sectors of medical biology located in metropolitan and overseas France and also extends to the French-speaking world. This article presents the testimonies and data obtained for the "Overseas and French-speaking countries" sub-working group made up of 45 volunteer correspondents, located in 20 regions of the world.

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Posterior semicircular canal dehiscence is a rare condition and can cause a variety of symptoms. We report three cases of children between 5 and 12 years of age with a PSCD. They all presented with different complaints as follows: Tullio phenomenon in the first case, conductive hearing loss in the second and, conductive hearing loss and pulsatile tinnitus in the third.

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Importance: Satisfactory functional results following ossicular chain reconstruction mainly depend on a stable connection between the tympanic membrane and the stapes, which is in turn dependent on the type of prosthesis used. Knowledge about the safety and functional outcome of the commercially available middle ear prostheses is therefore of great importance.

Objective: To evaluate the efficacy and safety of the Kurz TTP-Variac System partial ossicular replacement prosthesis (PORP) in ossiculoplasty.

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Background: Extracranial meningiomas are common tumours but may occur in unexpected locations. Awareness can avoid misdiagnosis and inappropriate management of these tumours. We report the case of a 54-year-old Caucasian male with en plaque meningioma of the external ear canal and an intracranial temporal lobe meningioma.

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Background: A dehiscence of a semicircular canal can mimic the audiologic characteristics of otosclerosis.

Objective: To present a unique case report of a patient presenting with stapes fixation due to otosclerosis but persisting conductive hearing loss after uneventful laser-assisted stapedotomy with interposition of an àWengen titanium clip stapes prosthesis. Eventually, a bilateral bony dehiscence between the apical turn of the cochlea and the internal carotid artery was eventually identified, which explained the persisting postoperative conductive hearing loss.

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Superior semicircular canal dehiscence (SSCD) can present with a variety of symptoms that can be predominantly auditory, predominantly vestibular or both. It can mimic a wide range of otological disorders, in particular otosclerosis-like stapes fixation. Our study revealed that, in 5.

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Objective: To report on the short-term results of CO2-laser assisted stapedotomy combined with the àWengen titanium clip stapes prosthesis. A comparison with published series using other prostheses and/or different stapedotomy techniques is made.

Study Design: Retrospective case series.

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Conclusion: Our data indicate that Meniett therapy is unlikely to be helpful in the long-term treatment of patients with severe, drug-resistant Ménière's disease (MD) in whom injection of intratympanic gentamicin (ITG) or another destructive procedure would otherwise be performed.

Objective: To investigate the value of Meniett therapy in patients with drug-resistant MD referred for injection of ITG.

Material And Methods: Twelve patients referred for ITG treatment were followed during a 2-month period of Meniett therapy.

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We examined the clinical presentation in patients with a histologically proven ingrowth of the cochlear nerve by acoustic neuroma to see whether this differs from what is known from large acoustic neuroma series. In total, 85 acoustic neuromas had an en bloc dissection to study histologically the relation between the cochlear nerve and the acoustic neuroma. In 21 of these 85 specimens, there was histologic proof of invasion of the cochlear nerve by the tumor.

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This case report discusses the clinical presentation, imaging, surgery and further treatment and course of a primary angiosarcoma of a non-irradiated parotid gland.

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Unlike the acoustic neuroma that occupies the internal acoustic meatus and extends into the cerebellopontine angle, the true intralabyrinthine neuroma is an extremely uncommon finding. The majority of the published cases were found at autopsy or during destructive labyrinthectomy for uncontrollable Meniere's syndrome. To the best of our knowledge, we present the smallest exclusively intrautricular neuroma that has ever been diagnosed preoperatively.

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Unlike the acoustic neuroma, a facial nerve neuroma is an uncommon finding, even in referral clinical centers. Two cases of facial nerve neuromas are presented, with special focus on the importance of adequate radiological imaging techniques and histological characteristics of tumor specimens. Surgical modalities regarding tumor removal as well as facial nerve repair are discussed and the current world literature reviewed.

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Magnetic resonance imaging (MRI) is now considered the diagnostic study of choice for evaluation of patients with suspected acoustic schwannoma. This retrospective study of 118 MR examinations presents an analysis of the MR findings of 89 acoustic tumours in 86 patients. The method of examination included precontrast and gadolinium(Gd)-enhanced MRI in 72 and plain MRI in 14 patients.

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MR imaging is the study of choice for the examination of patients with suspected acoustic schwannoma, because of its high sensitivity, especially after the use of contrast material. This essay illustrates the common MR features of acoustic schwannomas as seen in a study of 84 tumors. We pay special attention to the role of MR imaging in the distinction between acoustic schwannoma and meningioma.

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A neuroma of the facial nerve is a rather uncommon finding. Two cases of facial nerve neuromas, with special focus on the importance of high-definition imaging techniques and on the histologic characteristics are presented. Some surgical modalities regarding tumor removal as well as facial nerve repair are discussed.

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A rare case of cerebellar astrocytoma presenting as a cerebellopontine angle tumour is discussed. A 35-year old woman noticed a bizarre twitching and fatigability of the left upper lip while playing the flute. There was also a mild hearing loss on the left side and she sometimes felt unsure of herself when walking.

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A case of a tumor of the vagus nerve, showing typical features of a neurofibroma, is presented. The natural history is reviewed, and several technical investigations, with particular reference to the contributions of magnetic resonance imaging and immunohistochemical techniques in the differential diagnosis, are discussed.

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Given recent controversy concerning hearing preservation surgery of the acoustic neurinoma, an immunohistochemical study was undertaken to investigate the cochlear nerve-tumor interface. Ten intact medium-sized acoustic neurinomas were studied by means of classic staining procedures and an immunohistochemical technique using monoclonal mouse antibodies to human neurofilaments. Our observations indicate that the cochlear nerve is histologically involved in the tumoral process in those cases in which macroscopically visible adherences between the cochlear nerve and the tumor are present.

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In view of recent controversy concerning the preservation of hearing in acoustic neuroma surgery, a histologic study of the nerve-tumour interface was undertaken in order to investigate cochlear nerve involvement. Twelve intact acoustic neuromas were studied by means of Masson's trichrome stain, the Luxol fast blue technique, Verhoeff's stain and an immunohistochemical technique using monoclonal antibodies to human neurofilaments. In nine out of twelve specimens, macroscopically visible adherences were present between the cochlear nerve and the tumour.

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In view of recent controversies concerning the preservation of hearing in acoustic neurinoma surgery, we examined the courses of the vestibular and cochlear nerve fibers in 12 intact acoustic neurinomas studied in our department. Due to its lack of specificity, the Luxol fast blue stain was found to be inadequate for our study of the nerve fibers. In contrast, Verhoeff's stain proved to be satisfactory when combined with a highly specific immunohistochemical technique.

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A modified Luxol fast blue technique was used to study the development of the temporal bone. This staining method makes it possible to make a clear distinction between the primitive cartilage present and the new forming bone. Although these tissues both contain a significant amount of collagen, their staining properties with the Luxol dyes are widely dissimilar, due to the different physicochemical properties of the collagen types involved in these tissues.

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