A laryngoscope is a medical instrument used to visualize the larynx for various purposes. Laryngoscope is used for various vocal cord abnormalities, nodules, polyps, and cancers. It is also used for intubation also has a very important function.
Laryngoscope has many uses. When doctors cannot understand the cause of sore throat or diagnose problems like hoarseness, stridor coughing, or bad breath (halitosis) then to diagnose these problems with the help of laryngoscope. Doctors may also use a laryngoscope in the following conditions :
● You struggle to swallow
● You have something stuck in your throat
● You have an earache that isn't going away
● Tissue biopsy to rule out cancer.
To understand the Laryngoscope uses we have to understand laryngoscope Parts.
1. Laryngoscope handle - The laryngoscope handle is used to hold the laryngoscope and contains a battery and a light bulb. It can also be rechargeable.
2. Laryngoscope blade - The Laryngoscope blade is attached to the head of the laryngoscope handle. The blade is inserted in the mouth to properly visualize the larynx.
Now let's see the various types of laryngoscopes and laryngoscope uses.
1. Direct rigid laryngoscope Uses :
● It allows visualization of the larynx. A direct laryngoscope is used during general anesthesia, for surgical procedures of the larynx, and during resuscitation.
● This tool is useful in multiple hospital settings, from the emergency department to the intensive care unit and the operating room.
● By visualizing the larynx, endotracheal intubation is facilitated.
2. Direct flexible laryngoscope Uses :
● A direct flexible laryngoscope is used in younger children to visualize the child's airway including nose, throat, and voice box.
● It is used to examine obstruction, difficulty in swallowing, stridor, nodule, polyp, hoarseness of voice, etc.
● Direct flexible laryngoscope uses a thin tube with a fiber optic camera called a 'scope' to thoroughly examine the airway.
3. Video laryngoscope uses :
● Video laryngoscope use has become a first-line strategy for difficult intubation.
● Video laryngoscope improves the laryngeal view as compared to the direct laryngoscope.
● Video laryngoscope is used for difficult situations like intubation in an Intensive Care Unit, intubation in a patient with cervical spine immobilization, and awake video laryngoscopy-assisted tracheal intubation in the obese.
● Video laryngoscope is the most commonly used laryngoscope. A video laryngoscope is used for tracheal intubation.
4. Flexible fiberoptic laryngoscope uses :
● A flexible fiberoptic laryngoscope has become a standard tool for difficult intubation. They have a working length of 55-60 cm, which is suitable for tracheal intubation.
5. McIntosh laryngoscope uses :
● McIntosh's laryngoscope was designed to move the tongue to the side, which improved the view of the larynx and made more room for a breathing tube. The Macintosh Laryngoscope remains one of the most popular blades worldwide.
● The most popular use of McIntosh laryngoscope is intubation during surgeries or intubation during emergencies.
6. Miller laryngoscope uses :
● Miller's laryngoscope uses a straight blade.
● It is used mostly to secure a floppy airway.
● Miller laryngoscope is used during pediatric anesthesia.
● The Miller laryngoscope is a straight blade designed to obtain a view of the vocal cords by directly lifting the epiglottis.
7. Glidescope uses :
● The Glidescope video laryngoscope (GVL) is the most commonly used video laryngoscope.
● Compared to a direct laryngoscope, it gives a better visualization of the glottis (voice box).
● It is used for first-use intubation, surpassing direct laryngoscope.
● After induction of general anesthesia, a glidescope can be used for intubation.
Laryngoscope has various uses including visualization of larynx for intubation, diagnosis of polyps, vocal nodules, stridor, hoarseness of voice, etc. Doctors use various types of laryngoscopes according to the efficiency, ease of handling, and purpose of laryngoscopy.
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