Which one of the following lesions of vocal cord is dangerous to life:
(b) Bilateral abductor paralysis(Ref. Current Diagnosis & Treatment Otolaryngology, Lalwani, 3rd ed., 478; Scott Brown, 8th ed., Vol 2; 336)In bilateral abductor paralysis or B/L RLN palsy presentation is stridor because of which it is also known as life threatening palsy.In bilateral adductor paralysis, i.e. B/L complete paralysis, there will be aspiration bronchopneumonias but the presentation will not be acute life threatening in comparison to stridor in B/L RLN palsy.The remaining two options are not life threatening
Bilateral adductor paralysis
Bilateral abductor paralysis
Combined paralysis of left side superior and recurrent laryngeal nerve
Superior laryngeal nerve paralysis
Laryngeal Paralysis