Larynx

Question 1

Cricothyrodotomy is

Answer 1

An emergency pricedure in severe maxillofacial trauma when intubation is not possible it is aka coniotomy

Question 2

Safety muscle of larynx

Answer 2

Post cricothyroid as it abducts the vc and help in respiraton ( hide post. to make it fight)

Question 3

Thyroarytenoid=

Scratchy croaky voice-

Answer 3

medial part aka vocalis

Spasmodic dysphonia= due to spasm of muscles of phonation nd occurs only during speech no respiratory difficulty ( abduction dysphonia= muscles stay in abduction wont be able to adduct for speech= breathy voice)
Tt= injection of botulinm toxin

Question 4

Medialisation
Lateralisation
Shortening of vc
Lengthening of vc

Answer 4

Tuype 1
Type 2
Type 3 thyroplasty
Type 4 thyroplasty

Question 5

Laryngomalacia

Answer 5

Inlet is large and floppy ( epiglottis, aryepiglottic fold nd aryteinoid)
—>Fold that connects epiglottis nd arytenoids( aryepiglottic fold is short)

Question 6

Mitomycin c

Answer 6

Used in
Subglottic stenosis to prevent fibrosis
Nasalpack
Choaanal atresia( narrow area of operation needs to be prevented fro fibrosis

Question 7

Injury to

ILN
ELN
SLN
Vagus
B/l RLN

Answer 7

Aspiration

Difficulty to raise the pitch ( weak voice due to cricothyroid muscle injured no tension inc )

Both of above

Cadaveric vc ( aphoinia + aspiration)

Stridor ( difficulty in both vc medial unable to breathe)

Question 8

Medical Mx of recurrent laryngeal papillomatosis

Answer 8

Excision is done for stridor
To avoid recurring: A alpha interferon immunomodulator
B bevacizumab
C intralesional cedofovir

Caused by HPV 6 nd 11 in babies of vaginal delivery
Microdebridor is preferred over laser bcoz many sittings are required as it is recurrent and laser causes scarring that can lead to permanent vc anomaly
Could ve been orevented by vaccination of mother : gardacil and cerverix