What Is Swiss Narcolepsy Scale?

Q:
What is swiss narcolepsy scale?

A:
Swiss narcolepsy scale is a validated tool for screening for narcolepsy with cataplexy. It is a 5-item patient-reported scale. It can quickly assess the frequency of 5 symptoms that can be used to screen for the presence of narcolepsy with cataplexy. It is shown to have high specificity and sensitivity for narcolepsy with cataplexy.

Questions that will be asked are:

  • Q1: How often are you unable to fall asleep?
  • Q2: How often do you feel bad or not well rested in the morning?
  • Q3: How often do you take a nap during the day?
  • Q4: How often have you experienced weak knees/buckling of the knees during emotions like laughing, happiness, or anger?
  • Q5: How often have you experienced sagging of the jaw during emotions like laughing, happiness, or anger?

You will get 1pt for answering questions with never, 2pts for a rarely, 3pts for a sometimes, 4 pts for an often, and 5pts for an almost always. The answer will be scored using the weighted formula: 6xQ1 + 9xQ2 – 5xQ3 – 11xQ4 – 13xQ5 + 20. A score of <0 is suggestive of narcolepsy with cataplexy.

The test is not enough to diagnose narcolepsy with cataplexy. Diagnosis of narcolepsy with cataplexy should be established by clinical interview and sleep laboratory testing.

Keywords: swiss narcolepsy scale

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