7/9/2013

7/9/2013

Answers:

All of the following present with a normal cry except. 
A) Laryngomalacia
B) Congenital Laryngeal Webs
C) Subglottic Hemangiomas
D) Juvenile onset papillomatosis
E) A and C
F) B and D
G) B and C

Congenital laryngeal webs and juvenile onset papillomatosis present with abnormal cries whereas patients with laryngomalacia and subglottic hemangiomas typically have normal crys.

In patients with laryngomalacia, what is the typical appearance on endoscopy?
The epiglottis is omega shaped, the aryepiglottic folds are tall and thin and the arytenoids are enlarged.

MC Question:

What is the narrowest portion of the airway in children less than 5?
A) Cricoid cartilage
B) Thyroid cartilage
C) True vocal folds
D) False vocal folds

Free Response Questions:
When a liquid is flowing through a tube, what is the flow rate proportional too?

Quick Facts:
Subglottic Stenosis

-Subglottic stenosis is primarily due to prolonged ETT.

-Pressure necrosis of subglottic mucosa-->edema and ulceration-->infection and perichondritis-->granulation tissue and fibrous depositions occur.

-Most important factor is duration of intubation.

-Several factors have reduced incidence:

        -use of uncuffed polyvinylchloride tubes

        -use of smaller tubes to reduce pressure on the subglottic mucosa

        -nasotracheal intubation (less frictional trauma and better tube fixation)