PMID- 26520627 OWN - NLM STAT- MEDLINE DCOM- 20160516 LR - 20181202 IS - 1735-9694 (Electronic) IS - 0044-6025 (Linking) VI - 53 IP - 7 DP - 2015 Jul TI - Diagnostic value of IL-6, CRP, WBC, and absolute neutrophil count to predict serious bacterial infection in febrile infants. PG - 408-11 AB - Since clinical manifestations of most febrile infants younger than three months old are nonspecific, differentiation of Serious Bacterial Infection (SBI) from self-limiting viral illness is a significant challenge for pediatricians. This study was performed to assess the diagnostic value of white blood cell count (WBC), Absolute Neutrophil Count (ANC), Interleukin -6 (IL-6) and C-reactive protein (CRP) level to predict SBI in febrile infants younger than three months old who were hospitalized. This was a diagnostic test validation study. In this prospective study, 195 febrile infants admitted to 17 Shahrivar Hospital underwent a full sepsis workup including blood, urine, cerebrospinal fluid cultures and chest radiography. WBC count, ANC and CRP and Il-6 level were measured in all patients. Serum IL-6 concentration was measured by Enzyme-linked Immunosorbent Assay test. Then diagnostic, values of these tests for predicting SBI was compared with each other. Of total cases, 112 (57.4%) infants were male. SBI was diagnosed in 29 (14.9%) patients. The most common type of SBI was Urinary Tract Infection (UTI). Serum IL-6 ((3)20pg/dl) had sensitivity, specificity, positive predictive value (PPV) and negative predictive value (NPV) of 79/1%, 91.6%,75.4%, 60.3%, respectively and for CRP ((3) 10mg/l) values were 81.6%, 89.8%, 78.2%, and 52%,respectively. The predictive values of CRP and IL-6 were higher than WBC and ANC. IL-6 and CRP are more valid and better diagnostic markers for predicting SBI than WBC count and ANC. CRP level seems to be an accessible and cost-effective marker for early diagnosis of SBI. Since by no marker we can totally rule out SBI in febrile infants < three months of age, it is recommended to administer systemic antibiotics until culture results become available. FAU - Zarkesh, Marjaneh AU - Zarkesh M AD - Pediatrics growth disorders research center, 17 Shahrivar Hospital, School of Medicine, Guilan University of Medical Sciences, Rasht, Iran. FAU - Sedaghat, Fatemeh AU - Sedaghat F AD - Pediatrics growth disorders research center, 17 Shahrivar Hospital, School of Medicine, Guilan University of Medical Sciences, Rasht, Iran. FAU - Heidarzadeh, Abtin AU - Heidarzadeh A AD - Department of Social Medicine, School of Medicine, Guilan University of Medical Sciences, Rasht, Iran. FAU - Tabrizi, Manizheh AU - Tabrizi M AD - Pediatrics growth disorders research center, 17 Shahrivar Hospital, School of Medicine, Guilan University of Medical Sciences, Rasht, Iran. FAU - Bolooki-Moghadam, Kobra AU - Bolooki-Moghadam K AD - Pediatrics growth disorders research center, 17 Shahrivar Hospital, School of Medicine, Guilan University of Medical Sciences, Rasht, Iran. FAU - Ghesmati, Soheil AU - Ghesmati S AD - Pediatrics growth disorders research center, 17 Shahrivar Hospital, School of Medicine, Guilan University of Medical Sciences, Rasht, Iran. LA - eng PT - Journal Article PT - Research Support, Non-U.S. Gov't PL - Iran TA - Acta Med Iran JT - Acta medica Iranica JID - 14540050R RN - 0 (Anti-Bacterial Agents) RN - 0 (Biomarkers) RN - 0 (IL6 protein, human) RN - 0 (Interleukin-6) RN - 9007-41-4 (C-Reactive Protein) SB - IM MH - Anti-Bacterial Agents/therapeutic use MH - Bacterial Infections/blood/complications/*diagnosis MH - Biomarkers/blood MH - C-Reactive Protein/analysis MH - Enzyme-Linked Immunosorbent Assay MH - Female MH - Fever/*etiology MH - Humans MH - Infant MH - Infant, Newborn MH - Interleukin-6/blood MH - Leukocyte Count MH - Male MH - *Neutrophils MH - Prospective Studies MH - Sensitivity and Specificity MH - Sepsis MH - Urinary Tract Infections/blood/complications/*diagnosis MH - Virus Diseases/diagnosis OTO - NOTNLM OT - CRP OT - Febrile infants OT - IL-6 OT - Serious bacterial infection EDAT- 2015/11/02 06:00 MHDA- 2016/05/18 06:00 CRDT- 2015/11/02 06:00 PHST- 2015/10/06 00:00 [received] PHST- 2015/10/06 00:00 [accepted] PHST- 2015/11/02 06:00 [entrez] PHST- 2015/11/02 06:00 [pubmed] PHST- 2016/05/18 06:00 [medline] PST - ppublish SO - Acta Med Iran. 2015 Jul;53(7):408-11.