Endoscopy

Question 1

When is a high speed video or stroboscopy used?

Answer 1

To see vibratory characteristics of VF vibration

Question 2

Who developed laryngeal mirror?

Answer 2

Manual Garcia in the 1850’s

Question 3

What am I?

My flexible fiber optic cable has a light source on my scope tip and carries the image to a camera and computer monitor

I utilize a flexible nasendoscope

Answer 3

Transnasal flexible endoscopy

Question 4

Name 3 pros of using transnasal endoscopy

Answer 4

1. Patient can speak normally
2. Great view of supraglottic structures and velar function
3. Won’t really elicit a strong gag reflex

Question 5

Name 3 cons associated with using the transnasal endoscopy

Answer 5

1. Image and color distortion, poor magnification

However, NEWER chip in models provide better light and image magnification

Question 6

Name the pros and cons associated with the rigid oral scope

Answer 6

Pros: great image, magnification and light

Cons: may cause gag reflex
Can only produce sustained vowels

Question 7

What is the difference between a normal phrase and a locked phase in videosteoboscopy?

Answer 7

Normal phase: each flash of light takes a picture of a DIFFERENT part of the vibratory cycle. Software combines the pictures to make a complete cycle in one picture.
Pt’s fundamental frequency is used to determine where the light flashes

Locked phase: there light flashes at the same point ever cycle.if the cycle is normal, the VF will look like they’re standing still. If not normal, the cycle will move.

Question 8

When is the laryngeal endoscopy used?

Answer 8

When you need to view the anatomical structures and gross function of the larynx