How is the risk for death calculated for Stevens-Johnson syndrome (SJS) and toxic epidermal necrolysis (TEN)?

Updated: Jan 17, 2019
  • Author: C Stephen Foster, MD, FACS, FACR, FAAO, FARVO; Chief Editor: Andrew A Dahl, MD, FACS  more...
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Answer

The SCORTEN score (a severity-of-illness score for toxic epidermal necrolysis) calculates the risk for death in both SJS and TEN based on the following variables:

  • Age >40 years

  • Malignancy

  • Heart rate >120

  • Initial percentage of epidermal detachment >10%

  • Blood urea nitrogen (BUN) level >10 mmol/L

  • Serum glucose level >14 mmol/L

  • Bicarbonate level < 20 mmol/L

Each variable is assigned a value of 1 point. Mortality rates are as follows:

  • 0-1 points, ≥3.2%

  • 2 points, ≥12.1%

  • 3 points, ≥35.3%

  • 4 points, ≥58.3%

  • 5 or more points, ≥90%


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