Byoung Soo Shim

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Clinically, botulinum toxin A blocks the cholinergic innervation of the target tissue. Recently, it has been proved effective not only at a neuromuscular junction but also within parasympathetic or sympathetic neural synapses. Seven women with pain on genitalia that could not be controlled with conventional pain managements were enrolled in this study.(More)
OBJECTIVES/HYPOTHESIS To assess the normative size of the cochlear nerve (CN) and facial nerve (FN) in normal-hearing ears and to determine whether nerve size varies with age. STUDY DESIGN Cross-sectional. METHODS We included 169 ears with normal hearing between 2005 and 2010. The height, width, and cross-sectional area (CSA) of the CN and FN in the(More)
OBJECTIVES/HYPOTHESIS Hearing loss can be associated with a decrease in cerebrospinal fluid (CSF) pressure because changes in CSF pressure induce changes in perilymph pressure. Hearing loss after neurosurgical procedures have been reported, but clinical information on hearing loss after the placement of ventriculoperitoneal (VP) shunts, the most commonly(More)
OBJECTIVE To compare audiologic performances of cochlear implantation (CI) in children with X-linked deafness with those of CI in age- and sex-matched children with normal cochleae. PATIENTS We identified 4 patients with X-linked deafness and selected 10 age- and sex-matched deaf patients with normal cochleae between April 1999 and April 2012. MAIN(More)
CONCLUSION Our findings suggest that migrainous vertigo (MV) has a substantial vestibulo-spinal abnormality that can be uncovered by posturography. Patients with MV also showed a difficulty in using multisystem information, especially somatosensory information. Caloric and sensory organization tests (SOTs) have complementary roles in assessing(More)
We evaluated the short-term efficacy of Epley, Semont, and sham maneuvers for resolving posterior canal benign paroxysmal positional vertigo (BPPV) in a prospective multicenter randomized double-blind controlled study. Subjects were randomly divided into three groups: Epley (36 patients), Semont (32 patients), and sham (Epley maneuver for the unaffected(More)
PURPOSE It is assumed that preoperative use of a bone-anchored hearing aid (BAHA) test-band will give a patient lower gain compared to real post-operative gain because of the reduction of energy through the scalp when using a test-band. Hearing gains using a BAHA test-band were analyzed in patients with unilateral hearing loss. MATERIALS AND METHODS(More)
BACKGROUND To describe the rate and risk factors of central lesions among patients with dizziness in the emergency department based on diffusion-weighted MRI, which otologists consulted for evaluation of patients with dizziness need to know. METHODS 902 Consecutive patients who presented with dizziness symptoms as a chief complaint in the emergency(More)
We investigated the functional and histological changes after oophorectomy in the rabbit clitoris and vagina to determine the mechanism responsible for the development of arousal disorder in postmenopausal women. Twenty mature female New Zealand white rabbits were randomly divided into three groups: control; oophorectomy; and estrogen replacement after(More)
OBJECTIVES/HYPOTHESIS Although labyrinth fistulae are caused mostly by cholesteatoma, they can occur in long-standing chronic otitis media (COM) without cholesteatoma. We aimed to compare the prevalence of radiologic SCD on computed tomography (CT) between normal ears and contralateral COM ears in patients with unilateral COM and to assess the prevalence of(More)