Laryngology Flashcards
Which intrinsic muscle of the larynx has dual RLN innervation?
Interarytenoid
What is an abx that can heal chronic laryngitis or laryngitis sicca?
Doxycycline
Which is deeper: vocal cord cyst or nodule?
Cyst, often attached to vocal process
What kind of mucosa lines the glottis
Stratified squamous
What innervates the cricothyroid muscle
SLN, responsible for pitch
Which branchial arch does the superior laryngeal nerve derive from
4
Which branchial arch does recurrent laryngeal branch come from
6
What’s the epithelium of the subglottis
Columnar
What is jitter
Measure of pitch stability
What is shimmer
Measure of volume
What time frame is laryngeal EMG most useful
1-6 months
What prognosis do polyphasic potentials carry in laryngeal emg?
Good
What is name of nerve that supplies PCA
Inferior laryngeal nerve, terminal branch of RLN
What size glottal gap most amenable to vocal cord injection?
2 mm
What is the biggest risk of type 1 thyroplasty
Extrusion of the implant
What does the GRBAS grading scale of voice quality stand for?
G-Grade R - Roughness B- Breathiness A - Aesthenia S.- Strain
What is the chance of full recovery of vocal cord motion with idiopathic vocal cord paralysis
20-40% chance
How long should someone wait to get another procedure after they get a medialization laryngoplasty
6 months
What is the optimal time to perform Laryngeal EMG in a child after RLN injury
3-6 months (less than an adult)
What kind of mucosa does HPV RRP have predilection for?
Transition zones from pseudostratified columnar to stratified squamous
