Katherine D Heidenreich

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OBJECTIVE Document a case of bilateral otosclerosis with coexisting bilateral superior semicircular canal dehiscence syndrome and the treatment of hearing loss in this setting. PATIENT A 33-year-old woman presented with bilateral mixed hearing loss; worse in the left ear. This was gradual in onset, and she denied dizziness. Computerized tomographic scan(More)
Involvement of the superior semicircular canal (SSC) in benign paroxysmal positional vertigo (BPPV) is rare. SSC BPPV is distinguished from the more common posterior semicircular canal (PSC) variant by the pattern of nystagmus triggered by the Dix-Hallpike position: down-beating torsional nystagmus in SSC BPPV versus up-beating torsional nystagmus in PSC(More)
OBJECTIVES To describe the rationale, intraoperative details, and histopathologic findings discovered when treating an unusual case of apogeotropic horizontal canal positional vertigo with a transmastoid labyrinthectomy. PATIENT A single case report. INTERVENTION Therapeutic. MAIN OUTCOME MEASURES Resolution of apogeotropic nystagmus and improvement(More)
Tullio phenomenon refers to eye movements induced by sound.(1) This unusual examination finding may be seen in superior semicircular canal dehiscence (SSCD) syndrome.(2) This disorder is due to absent bone over the superior semicircular canal (figure). Patients complain of dizziness triggered by loud sound, aural fullness, autophony, and pulsatile tinnitus.(More)
OBJECTIVE Document the use of transmastoid labyrinthectomy to treat disabling vertigo secondary to a lesion in the internal auditory canal. PATIENT A 69-year-old man with nonserviceable left hearing experienced disabling attacks of vertigo refractory to medical measures. Magnetic resonance imaging revealed a small left intracanalicular lesion with an(More)
OBJECTIVE To determine the electrocochleographic characteristics of ears with superior semicircular canal dehiscence (SSCD) and to examine its use for intraoperative monitoring in canal occlusion procedures. STUDY DESIGN Case series. SETTING Academic medical center. PATIENTS Thirty-three patients (45 ears) had clinical and computed tomographic(More)
OBJECTIVE Document the use of transcanal labyrinthectomy to treat disabling attacks of vertigo after unilateral cochlear implantation. PATIENT A 46-year-old woman with severe-profound bilateral sensorineural hearing loss secondary to enlarged vestibular aqueducts underwent cochlear implantation for her right ear with a Nucleus Freedom device. The surgery(More)
We present a patient with positive head thrust test (HTT) and video-oculography (VOG) findings suggestive of active lateral semicircular canal (LSCC) benign paroxysmal positional vertigo (BPPV). This patient was seen in a tertiary vestibular clinic for episodic vertigo. He exhibited robust corrective refixation saccades on HTT to the right and evidence of(More)
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