:SCORTEN scale

The SCORTEN scale (SCORe of Toxic Epidermal Necrosis) is a severity-of-illness scale with which the severity of certain bullous conditions can be systematically determined. It was originally developed for toxic epidermal necrolysis,{{cite journal |vauthors=Bastuji-Garin S, Fouchard N, Bertocchi M, etal |title=SCORTEN: a severity-of-illness score for toxic epidermal necrolysis|journal=Journal of Investigative Dermatology|publisher=J Invest Dermatol|year=2000|pages=149–53 | doi=10.1046/j.1523-1747.2000.00061.x | pmid=10951229 | volume=115 | issue=2|doi-access=free }} but can be used with burn victims, sufferers of Stevens–Johnson syndrome, cutaneous drug reactions, or exfoliative wounds.{{citation needed|date=September 2013}} These conditions have in common that they compromise the integrity of the skin and/or mucous membranes.

In the SCORTEN Scale 7 independent risk factors for high mortality are systematically scored, so as to determine the mortality rate for that particular patient.

class="wikitable" border="1" ! Risk factor ! 0 ! 1

Age | < 40 years | > 40 years

Associated malignancy | no | yes

Heart rate (beats/min) | <120 | >120

Serum BUN (mg/dL) | <28 | >28

Detached or compromised body surface | <10% | >10%

Serum bicarbonate (mEq/L) | >20 | <20

Serum glucose (mg/dL) | <252 | >252

The more risk factors present, the higher the SCORTEN score, and the higher the mortality rate, as shown in the following table.

class="wikitable" border="1"
No of risk factors ! Mortality rate
0-1 | 3.2%
2 | 12.1%
3 | 35.3%
4 | 58.3%
5 or more | >90%