Clinical and Experimental Pediatrics

대한소아청소년과학회 (The Korean Pediatric Society)
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Usefulness of the procalcitonin test in young febrile infants between 1 and 3 months of age

  • Lee, In Sul (Department of Pediatrics, Samsung Changwon Hospital, Sungkyunkwan University School of Medicine) ;
  • Park, Young Jin (Department of Pediatrics, Samsung Changwon Hospital, Sungkyunkwan University School of Medicine) ;
  • Jin, Mi Hyeon (Department of Biostatistics, Samsung Changwon Hospital, Sungkyunkwan University School of Medicine) ;
  • Park, Ji Young (Department of Pediatrics, Samsung Changwon Hospital, Sungkyunkwan University School of Medicine) ;
  • Lee, Hae Jeong (Department of Pediatrics, Samsung Changwon Hospital, Sungkyunkwan University School of Medicine) ;
  • Kim, Sung Hoon (Department of Pediatrics, Samsung Changwon Hospital, Sungkyunkwan University School of Medicine) ;
  • Lee, Ju Suk (Department of Pediatrics, Samsung Changwon Hospital, Sungkyunkwan University School of Medicine) ;
  • Kim, Cheol Hong (Department of Pediatrics, Samsung Changwon Hospital, Sungkyunkwan University School of Medicine) ;
  • Kim, Young Don (Department of Pediatrics, Samsung Changwon Hospital, Sungkyunkwan University School of Medicine) ;
  • Lee, Jun Hwa (Department of Pediatrics, Samsung Changwon Hospital, Sungkyunkwan University School of Medicine)
  • 투고 : 2017.10.13
  • 심사 : 2018.03.05
  • 발행 : 2018.09.15
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초록

Purpose: To study the usefulness of the procalcitonin (PCT) test in young febrile infants between 1 and 3 months of age. Methods: We evaluated the medical records of 336 febrile infants between 1 and 3 months of age who visited the Emergency Department or outpatient department of Samsung Changwon Hospital from May 2015 to February 2017, and analyzed the clinical characteristics between infants in the serious bacterial infection (SBI) group and non-SBI group. Results: Among the 336 infants, 38 (11.3%) had definitive SBI (bacteremia, n=3; meningitis, n=1; urinary tract infection, n=34). The mean PCT ($6.4{\pm}11.9ng/mL$) and C-reactive protein (CRP) level ($3.8{\pm}2.6mg/dL$), and the absolute neutrophil count (ANC) ($6,984{\pm}4,675$) for patients in the SBI group were significantly higher than those for patients in the non-SBI group (PCT, $0.3{\pm}1.2ng/mL$; CRP, $1.3{\pm}1.6mg/dL$; ANC, $4,888{\pm}3,661$). PCT had lower sensitivity (43.6%), but higher specificity (92.6%) and accuracy (86.9%) than CRP (92.3%, 25.3%, and 33.0%) for identifying SBI. The area under the receiver operating characteristic curves (AUCs) for definitive SBI were PCT 77.0%, CRP 80.8%, WBC 56.8%, ANC 67.8%, and PLT 48.1%. The AUCs for definitive SBI were PCT+CRP 85.4%, PCT+WBC 77.2%, PCT+ANC 81.3%, CRP+WBC 80.1%, and CRP+ANC 81.6%. Conclusion: Our results suggest that the PCT test or a combination of PCT and CRP tests is a more accurate and specific biomarker to detect and rule out SBIs.

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참고문헌

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