What does PAN mean in MEDICAL
PAN, an abbreviation in medical terminology, stands for Positional Alcohol Nystagmus. Nystagmus refers to involuntary rapid and repetitive eye movements that can be horizontal, vertical, or rotational. PAN specifically involves nystagmus that occurs when a person is in a certain head position and consumes alcohol.
PAN meaning in Medical in Medical
PAN mostly used in an acronym Medical in Category Medical that means Positional Alcohol Nystagmus
Shorthand: PAN,
Full Form: Positional Alcohol Nystagmus
For more information of "Positional Alcohol Nystagmus", see the section below.
What is PAN?
PAN is a clinical test used to assess vestibular function, the system responsible for balance and spatial orientation. Specifically, it helps evaluate the function of the semicircular canals, which sense rotational movements of the head.
How is PAN Performed?
The PAN test involves the following steps:
- The patient is positioned on a table with their head tilted back at 45 degrees.
- Alcohol, typically in the form of glycerol or water with a high alcohol concentration, is instilled into one ear canal.
- The patient's eyes are observed for the presence of nystagmus.
Interpretation of Results
A positive PAN test is characterized by the presence of nystagmus that lasts for at least 30 seconds and has a characteristic pattern. The direction of the nystagmus indicates the affected semicircular canal.
- Right-beating nystagmus indicates a problem with the right horizontal semicircular canal.
- Left-beating nystagmus indicates a problem with the left horizontal semicircular canal.
- Downbeat nystagmus indicates a problem with the posterior semicircular canals.
- Upbeat nystagmus indicates a problem with the anterior semicircular canals.
Clinical Significance
A positive PAN test suggests a unilateral vestibular dysfunction, which can be caused by various conditions such as:
- Vestibular neuritis
- Meniere's disease
- Benign paroxysmal positional vertigo (BPPV)
- Labyrinthitis
- Acoustic neuroma
- Head injury
Essential Questions and Answers on Positional Alcohol Nystagmus in "MEDICAL»MEDICAL"
What is Positional Alcohol Nystagmus (PAN)?
Positional Alcohol Nystagmus (PAN) is a condition that causes involuntary eye movements when the head is in certain positions. It's typically caused by damage to the inner ear, which disrupts the body's ability to sense head movement.
What are the symptoms of PAN?
The main symptom of PAN is a rhythmic, jerking eye movement called nystagmus. This movement occurs when the head is tilted back or to the side. Other symptoms may include dizziness, imbalance, and nausea.
What causes PAN?
PAN is caused by damage to the vestibular system in the inner ear. This system is responsible for sensing head movement and balance. Damage can occur due to head trauma, ear infections, or certain medications.
How is PAN diagnosed?
PAN is diagnosed through a physical exam and a series of tests. These may include the Dix-Hallpike maneuver, which involves tilting the head back while lying down. Nystagmus or other symptoms during this maneuver indicate a positive PAN diagnosis.
What is the treatment for PAN?
Treatment for PAN typically involves a series of exercises called canalith repositioning maneuvers. These exercises aim to reposition loose particles in the inner ear and alleviate symptoms. Surgery may be necessary in severe cases.
Can PAN be prevented?
PAN caused by head trauma or ear infections cannot be prevented. However, avoiding excessive alcohol consumption can help reduce the risk of developing PAN.
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