Laryngoscopy

Definition:
Its a medical procedure that use in the intubation of Endotracheal tube, to see the vocal cord or glottis, It is performed by an anesthetic to give a general anesthesia, during resuscitate the patient by cardiopulmonary Resuscitation.
Types of Methods:
There are following types that use for intubation;

1. Direct Laryngoscopy
2. Indirect Laryngoscopy
3. Fiber optic Laryngoscopy
4. Conventional Laryngoscopy

1. Direct Laryngoscopy:

It is performed on that patients who laying on his or her back in supine position.
It is inserted to the right side of tongue and slip it toward left side to move the tongue to out of sight.
Laryngoscope push upward and forward away from you and towards the roof.
Now you can seen epiglottis and glottis.
Perform the procedure and secure airway.
It can only perform in unconscious patients because it is slightly intact with gag reflexes.

2. Indirect Laryngoscopy:
It is performed by direct line of sight of tongue to see the vocal cord.
It is mostly performed by Fiber optic bronchoscope and video Laryngoscope etc.

3. Fiber optic Laryngoscopy:
These are the alternatives of Conventional Laryngoscope.
These are performed in the way of indirect Laryngoscope e.g; flexible fiber optic bronchoscope.

4.Conventional Laryngoscopy:
These are most popular devices use for the purpose of intubation and other anesthetic techniques.
Nowadays, Conventional Laryngoscope consists of handle that have batteries, light source, Sets of blades.

Sizes & Types of Blades:
There are two types of blades;

• Miller's Blades
• Macintosh Blades

 Miller's Blades; large adult (males:4), small adults (male/female:3), Peads (children:2), Infants ( 1 or 2).

Macintosh Blades;  large adult (males:4), small adults (male/female:3), Peads (children:2), Infants ( 1 or 2).

Applications:

• Administration of General anesthesia.
• For Invasive mechanical Ventilation.
• To check the voice problems i.e; week voice, breathing voice and horse voice.
• To check the causes of sore throat and ear pain.
• To check the throat injuries and airway obstructions.

Complications:

• Inexperience person can cause the severe injury.
• Soft tissues can  damage in minatory during the procedure.
• Injuries of pharynx and larynx can cause scars, ulceration and obsession.