Early development of the facial nerve in the chick embryo with special reference to the development of the chorda tympani

1988 ◽  
Vol 182 (2) ◽  
pp. 169-182 ◽  
Author(s):  
Shigeru Kuratani ◽  
Shigenori Tanaka ◽  
Yuji Ishikawa ◽  
Chosei Zukeran
Keyword(s):  
Chick Embryo ◽  
Facial Nerve ◽  
Special Reference ◽  
Early Development ◽  
Chorda Tympani

scholarly journals Postoperative radiological assessment of the mastoid facial canal in cochlear implant patients in correlation with facial nerve stimulation

2021 ◽  
Author(s):  
Iris Burck ◽  
Rania A. Helal ◽  
Nagy N. N. Naguib ◽  
Nour-Eldin A. Nour-Eldin ◽  
Jan-Erik Scholtz ◽  
...  
Keyword(s):  
Facial Nerve ◽  
Cochlear Implant ◽  
Nerve Stimulation ◽  
Lateral Wall ◽  
Facial Canal ◽  
Chorda Tympani ◽  
Radiological Assessment ◽  
Canal Diameter ◽  
History Of ◽  
Facial Nerve Stimulation

Abstract Objectives To correlate the radiological assessment of the mastoid facial canal in postoperative cochlear implant (CI) cone-beam CT (CBCT) and other possible contributing clinical or implant-related factors with postoperative facial nerve stimulation (FNS) occurrence. Methods Two experienced radiologists evaluated retrospectively 215 postoperative post-CI CBCT examinations. The mastoid facial canal diameter, wall thickness, distance between the electrode cable and mastoid facial canal, and facial-chorda tympani angle were assessed. Additionally, the intracochlear position and the insertion angle and depth of electrodes were evaluated. Clinical data were analyzed for postoperative FNS within 1.5-year follow-up, CI type, onset, and causes for hearing loss such as otosclerosis, meningitis, and history of previous ear surgeries. Postoperative FNS was correlated with the measurements and clinical data using logistic regression. Results Within the study population (mean age: 56 ± 18 years), ten patients presented with FNS. The correlations between FNS and facial canal diameter (p = 0.09), wall thickness (p = 0.27), distance to CI cable (p = 0.44), and angle with chorda tympani (p = 0.75) were statistically non-significant. There were statistical significances for previous history of meningitis/encephalitis (p = 0.001), extracochlear-electrode-contacts (p = 0.002), scala-vestibuli position (p = 0.02), younger patients’ age (p = 0.03), lateral-wall-electrode type (p = 0.04), and early/childhood onset hearing loss (p = 0.04). Histories of meningitis/encephalitis and extracochlear-electrode-contacts were included in the first two steps of the multivariate logistic regression. Conclusion The mastoid-facial canal radiological assessment and the positional relationship with the CI electrode provide no predictor of postoperative FNS. Histories of meningitis/encephalitis and extracochlear-electrode-contacts are important risk factors. Key Points • Post-operative radiological assessment of the mastoid facial canal and the positional relationship with the CI electrode provide no predictor of post-cochlear implant facial nerve stimulation. • Radiological detection of extracochlear electrode contacts and the previous clinical history of meningitis/encephalitis are two important risk factors for postoperative facial nerve stimulation in cochlear implant patients. • The presence of scala vestibuli electrode insertion as well as the lateral wall electrode type, the younger patient’s age, and early onset of SNHL can play important role in the prediction of post-cochlear implant facial nerve stimulation.

Early Development and Tissue-Specific Patterns of Insulin Binding in Chick Embryo*

Endocrinology ◽  
1984 ◽  
Vol 115 (4) ◽  
pp. 1315-1323 ◽  
Author(s):  
S. ANNE HENDRICKS ◽  
FLORA DE PABLO ◽  
JESSE ROTH
Keyword(s):  
Chick Embryo ◽  
Early Development ◽  
Insulin Binding ◽  
Tissue Specific

scholarly journals Early development of the facial nerve in human embryos at stages 13–15

2015 ◽  
Vol 74 (2) ◽  
pp. 252-257 ◽  
Author(s):  
M. Weglowski ◽  
W. Woźniak ◽  
A. Piotrowski ◽  
M. Bruska ◽  
J. Weglowska ◽  
...  
Keyword(s):  
Facial Nerve ◽  
Early Development ◽  
Human Embryos

Early development of the hypoglossal nerve in the chick embryo as observed by the whole-mount nerve staining method

1988 ◽  
Vol 182 (2) ◽  
pp. 155-168 ◽  
Author(s):  
Shigeru Kuratani ◽  
Shigenori Tanaka ◽  
Yuji Ishikawa ◽  
Chosei Zukeran
Keyword(s):  
Chick Embryo ◽  
Early Development ◽  
Hypoglossal Nerve ◽  
Staining Method ◽  
Whole Mount ◽  
Nerve Staining

Model-based segmentation of the facial nerve and chorda tympani in pediatric CT scans

2011 ◽  
Author(s):  
Fitsum A. Reda ◽  
Jack H. Noble ◽  
Alejandro Rivas ◽  
Robert F. Labadie ◽  
Benoit M. Dawant
Keyword(s):  
Facial Nerve ◽  
Ct Scans ◽  
Chorda Tympani ◽  
Pediatric Ct ◽  
Model Based
Sign in / Sign up

Export Citation Format

Share Document