Abstract：
BACKGROUND AND OBJECTIVE:To assess the usefulness of a risk scale based on serum procalcitonin (PCT) compared to the Laboratory Risk Indicator for Necrotising Fasciitis (LRINEC) scale in the early discrimination between necrotising fasciitis (NF) and cellulitis of the extremities. MATERIALS AND METHODS:Retrospective study of consecutive patients with confirmed diagnosis of NF in one limb (n=11). This study group was compared with 23 consecutive patients with a diagnosis of severe limbs cellulitis during the same period. The clinical data and laboratory parameters were analysed, the main variable was the serum level of PCT upon admission. The capacity for NF diagnosis of the two methods, PCT level and LRINEC scale score, were evaluated by ROC curve and determined by the calculation of the area under the curve (AUC). RESULTS:The AUC was significantly higher with PCT measurement, both as a continuous variable and when the risk was categorised. The cut-off point for the PCT level with the highest AUC under the curve was from 0.87ng/ml (sensitivity 90.9%, specificity 82.6%), whereas it was a score of 5 on the LRINEC scale (sensitivity 72.7%, specificity 82.6%). CONCLUSION:PCT measurement was a more effective method than the LRINEC score for early discrimination between NF and cellulitis of the extremities. A low level of PCT, associated with the patient's clinical status and physical examination is especially useful to rule out an early diagnosis of NF.
journal_name
Med Clin (Barc)journal_title
Medicina clinicaauthors
Novoa-Parra CD,Wadhwani J,Puig-Conca MA,Lizaur-Utrilla A,Montaner-Alonso D,Rodrigo-Pérez JL,Morales-Suárez-Varela Mdoi
10.1016/j.medcli.2019.01.032subject
Has Abstractpub_date
2019-11-15 00:00:00pages
347-350issue
9eissn
0025-7753issn
1578-8989pii
S0025-7753(19)30127-7journal_volume
153pub_type
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