Anomalies Number of ears Number of patients Inner ear Common cavitya 10 10 IP-I 13 11 IP-II 18 14 EVA 9 7 CH-IIIb 6 3 Lateral canal hypoplasia 1 1…
Fetal week Inner ear 3rd Auditory placode; auditory pit 4th Auditory vesicle (otocyst); vestibular-cochlear division 6th Utricle and saccule present; semicircular canal begins 7th One cochlear coil present; sensory cells…
Fig. 11.1 Typical developmental changes in vestibular-evoked myogenic potentials (c-VMEPs) in normal infant and children 11.2 VEMPs in Infants with Congenital Profound Hearing Loss Colebatch et al. [3] showed that…
Fig. 4.1 Structure of the cochlea. A semi-thin plastic section through the cochlea of a 2-month-old rat. OC organ of Corti, TM tectorial membrane, SGN spiral ganglion neuron. Scale bar…
Fig. 8.1 Reformatted parasagittal oblique MRI images. (a) A normal cochlear nerve of larger diameter than the facial nerve. F facial nerve, C cochlear nerve, SV super. (b) A hypoplastic…
Fig. 9.1 Audiological and vestibular findings in a 2-year-old girl with OTOF mutation. (a) Audiogram. (b) Distortion product otoacoustic emission. (c) Auditory brainstem responses in response to 105 dBnHL clicks….
© Springer Science+Business Media Singapore 2017Kimitaka Kaga (ed.)Cochlear Implantation in Children with Inner Ear Malformation and Cochlear Nerve DeficiencyModern Otology and Neurotology10.1007/978-981-10-1400-0_7 7. Outcome of Cochlear Implantation in Children with Cochlear Nerve Deficiency and/or…
Fig. 5.1 Classification system of inner ear malformation which was relevant to the varying stages of inner ear organogenesis 5.2 Nonsyndromic Hearing Loss 5.2.1 DFNB4/Pendred Syndrome DFNB4 is characterized by…
© Springer Science+Business Media Singapore 2017Kimitaka Kaga (ed.)Cochlear Implantation in Children with Inner Ear Malformation and Cochlear Nerve DeficiencyModern Otology and Neurotology10.1007/978-981-10-1400-0_3 3. Embryology of Cochlear Nerve and Its Deficiency Irumee Pai1 (1) St. Thomas’…
