Comparison of arytenoid vertical height discrepancy in normal versus patients with vocal cord palsy
Author links open overlay panelEugene H.WongaMurraySmithaRichardTjahjonoabDanielle B.StonecNiranjanSritharanabCarsten E.PalmeadMark C.SmithaFaruqueRiffata
a
Department of Otolaryngology-Head and Neck Surgery, Westmead Hospital, University of Sydney, Sydney, Australia
b
Department of Otolaryngology-Head and Neck Surgery, Nepean Hospital, University of Sydney, Sydney, Australia
c
Department of Speech Pathology, Westmead Hospital, University of Sydney, Sydney, Australia
d
Chris O'Brien Lifehouse, PO Box M33, Camperdown, Australia
Received 12 September 2019, Available online 24 October 2019.
Abstract
Objective
Cadaveric experiments and more recently clinical data have demonstrated that patients with vertical height discrepancy between their arytenoids experience poorer voice outcomes in patients with unilateral vocal cord palsy (UVP) after medialisation laryngoplasty. However, the presence or severity of height discrepancy in normal patients without UVP has not yet been clearly defined.
Study design
Case-control study.
Setting
Tertiary Australian hospitals.
Subjects and methods
A retrospective review was performed on patients who underwent high computed tomography imaging of the neck. Scans were assessed for discrepancy in arytenoid vertical height discrepancy and compared to a cohort with known UVP.
Results
44 normal patients (50% female, mean age 57.6 ± 14.8 years) were compared to 23 patients with UVP (43.4% female, mean age 52.3 ± 14.9 years.) Normal patients were found to have a smaller height discrepancy compared to UVP patients (student's t-test,2.00 mm ± 0.00 vs 2.39 mm ± 0.72, p < .001.)
Conclusion
This study suggests that discrepancy is pathologic, and it is plausible that this results in acoustic consequences.
Keywords
Vocal cordHeightDiscrepancyMismatchVariationComputed tomography
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© 2019 Elsevier Inc. All rights reserved.
Author links open overlay panelEugene H.WongaMurraySmithaRichardTjahjonoabDanielle B.StonecNiranjanSritharanabCarsten E.PalmeadMark C.SmithaFaruqueRiffata
a
Department of Otolaryngology-Head and Neck Surgery, Westmead Hospital, University of Sydney, Sydney, Australia
b
Department of Otolaryngology-Head and Neck Surgery, Nepean Hospital, University of Sydney, Sydney, Australia
c
Department of Speech Pathology, Westmead Hospital, University of Sydney, Sydney, Australia
d
Chris O'Brien Lifehouse, PO Box M33, Camperdown, Australia
Received 12 September 2019, Available online 24 October 2019.
Figures (1)
Abstract
Objective
Cadaveric experiments and more recently clinical data have demonstrated that patients with vertical height discrepancy between their arytenoids experience poorer voice outcomes in patients with unilateral vocal cord palsy (UVP) after medialisation laryngoplasty. However, the presence or severity of height discrepancy in normal patients without UVP has not yet been clearly defined.
Study design
Case-control study.
Setting
Tertiary Australian hospitals.
Subjects and methods
A retrospective review was performed on patients who underwent high computed tomography imaging of the neck. Scans were assessed for discrepancy in arytenoid vertical height discrepancy and compared to a cohort with known UVP.
Results
44 normal patients (50% female, mean age 57.6 ± 14.8 years) were compared to 23 patients with UVP (43.4% female, mean age 52.3 ± 14.9 years.) Normal patients were found to have a smaller height discrepancy compared to UVP patients (student's t-test,2.00 mm ± 0.00 vs 2.39 mm ± 0.72, p < .001.)
Conclusion
This study suggests that discrepancy is pathologic, and it is plausible that this results in acoustic consequences.
Keywords
Vocal cordHeightDiscrepancyMismatchVariationComputed tomography
View full text
© 2019 Elsevier Inc. All rights reserved.
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