Useful Tool: Necrotizing fasciitis score

6 Jul

the LRINEC = laboratory risk indicator for necrotizing fasciitis

 

-the score is based off of a retrospective observational study comparing laboratory results of patients with confirmed necrotizing fasciitis and those with severe cellulitis or abscess

 

-six criteria: CRP, WBC, hemoglobin, sodium, creatinine, glucose

 

-each of the criteria are weighted with a point value

 

-values totaling a LRINEC score >6 had a sensitivity of 90% and specificity of 95%; PPV 92% and NPV 95%

 

-useful tool? Sure. But also keep in mind this cut-off still missed 10% of patients with necrotizing fasciitis

 

-Summary: a LRINEC score > 6 could be used as a potential tool to rule in necrotizing fasciitis, but a score <6 should not be used to rule out the diagnosis

 

Sources:

Wong CH, Khin LW, Heng KS, Tan KC, Low CO. The LRINEC (laboratory risk indicator for necrotizing fasciitis) score: a tool for distinguishing necrotizing fasciitis from other soft tissue infections. Crit Care Med. 2004 Jul; 32 (7):1535-41. PubMed PMID: 15241098.; MDCalc site; picture

 

Submitted by K Estes

 

 

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