Abstract:
PURPOSE:Differential diagnosis between acute viral and bacterial infection is an emerging common challenge for a physician in the emergency department. Serum C-reactive protein (CRP) is used to support diagnosis of bacterial infection, but in patients admitted with low CRP, its ability to discriminate between viral and bacterial infections is limited. We aimed to use two consecutive CRP measurements in order to improve differential diagnosis between bacterial and viral infection. METHODS:A single-center retrospective cohort (n = 1629) study of adult patients admitted to the emergency department with a subsequent microbiological confirmation of either viral or bacterial infection. Trend of CRP was defined as the absolute difference between the first two measurements of CRP divided by the time between them, and we investigated the ability of this parameter to differentiate between viral and bacterial infection. RESULTS:In patients with relatively low initial CRP concentration (< 60 mg/L, n = 634 patients), where the uncertainty regarding the type of infection is the highest, the trend improved diagnosis accuracy (AUC 0.83 compared to 0.57 for the first CRP measurement). Trend values above 3.47 mg/L/h discriminated bacterial from viral infection with 93.8% specificity and 50% sensitivity. CONCLUSIONS:The proposed approach for using the kinetics of CRP in patients whose first CRP measurement is low can assist in differential diagnosis between acute bacterial and viral infection.
journal_name
Infectionjournal_title
Infectionauthors
Coster D,Wasserman A,Fisher E,Rogowski O,Zeltser D,Shapira I,Bernstein D,Meilik A,Raykhshtat E,Halpern P,Berliner S,Shenhar-Tsarfaty S,Shamir Rdoi
10.1007/s15010-019-01383-6subject
Has Abstractpub_date
2020-04-01 00:00:00pages
241-248issue
2eissn
0300-8126issn
1439-0973pii
10.1007/s15010-019-01383-6journal_volume
48pub_type
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