Serum Procalcitonin Levels in Acute Encephalopathy with Biphasic Seizures and Late Reduced Diffusion

Yosuke Fujii, Masato Yashiro, Mutsuko Yamada, Tomonobu Kikkawa, Nobuyuki Nosaka, Yukie Saito, Kohei Tsukahara, Masanori Ikeda, Tsuneo Morishima, Hirokazu Tsukahara

Research output: Contribution to journalArticle

Abstract

Procalcitonin (PCT) is used as a biomarker in severe infections. Here, we retrospectively investigated levels of serum PCT, C-reactive protein (CRP), and inflammatory cytokines (IL-6, TNF-α, and IFN-γ) in the second phase of patients with acute encephalopathy with biphasic seizures and late reduced diffusion (AESD). Nine AESD pediatric patients (4 men, 5 women; AESD group) admitted to Okayama University Hospital from 2010 to 2016 were compared with 10 control patients with febrile seizures (FS) (3 men, 7 women; FS group). Mean PCT concentrations (ng/mL) in the AESD and FS groups were significantly different, at 9.8 ± 6.7 and 0.8 ± 0.9, respectively (p = 0.0006). CRP (mg/dL) were 0.79 ± 0.89 and 1.4 ± 1.0 (p = 0.94), respectively; IL-6 (pg/mL) were 449.7 ± 705.0 and 118.3 ± 145.4 (p = 0.20), respectively; TNF-α (pg/mL) were 18.6 ± 12.5 and 16.6 ± 6.0 (p = 0.67), respectively; and IFN-γ (pg/mL) were 79.6 ± 158.5 and 41.9 ± 63.7 (p = 0.56), respectively. Ratios of PCT to CRP were 27.5 ± 34.2 and 3.2 ± 6.8 (p < 0.0001), respectively. The sensitivity and specificity in the diagnosis of AESD using a cutoff of PCT/CRP ratio of 1.0 were 79% and 100%, respectively. These results suggest that PCT and the PCT/CRP ratio are useful in auxiliary diagnosis of the second stage of AESD, and in AESD, PCT is likely to increase through a different mechanism.

Original languageEnglish
Number of pages1
JournalDisease Markers
Volume2018
DOIs
Publication statusPublished - Jan 1 2018

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Calcitonin
Brain Diseases
Seizures
C-Reactive Protein
Serum
Febrile Seizures
Interleukin-6
Pediatrics
Biomarkers
Cytokines
Sensitivity and Specificity
Infection

ASJC Scopus subject areas

  • Molecular Biology
  • Genetics
  • Clinical Biochemistry
  • Biochemistry, medical

Cite this

Serum Procalcitonin Levels in Acute Encephalopathy with Biphasic Seizures and Late Reduced Diffusion. / Fujii, Yosuke; Yashiro, Masato; Yamada, Mutsuko; Kikkawa, Tomonobu; Nosaka, Nobuyuki; Saito, Yukie; Tsukahara, Kohei; Ikeda, Masanori; Morishima, Tsuneo; Tsukahara, Hirokazu.

In: Disease Markers, Vol. 2018, 01.01.2018.

Research output: Contribution to journalArticle

Fujii, Yosuke ; Yashiro, Masato ; Yamada, Mutsuko ; Kikkawa, Tomonobu ; Nosaka, Nobuyuki ; Saito, Yukie ; Tsukahara, Kohei ; Ikeda, Masanori ; Morishima, Tsuneo ; Tsukahara, Hirokazu. / Serum Procalcitonin Levels in Acute Encephalopathy with Biphasic Seizures and Late Reduced Diffusion. In: Disease Markers. 2018 ; Vol. 2018.
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abstract = "Procalcitonin (PCT) is used as a biomarker in severe infections. Here, we retrospectively investigated levels of serum PCT, C-reactive protein (CRP), and inflammatory cytokines (IL-6, TNF-α, and IFN-γ) in the second phase of patients with acute encephalopathy with biphasic seizures and late reduced diffusion (AESD). Nine AESD pediatric patients (4 men, 5 women; AESD group) admitted to Okayama University Hospital from 2010 to 2016 were compared with 10 control patients with febrile seizures (FS) (3 men, 7 women; FS group). Mean PCT concentrations (ng/mL) in the AESD and FS groups were significantly different, at 9.8 ± 6.7 and 0.8 ± 0.9, respectively (p = 0.0006). CRP (mg/dL) were 0.79 ± 0.89 and 1.4 ± 1.0 (p = 0.94), respectively; IL-6 (pg/mL) were 449.7 ± 705.0 and 118.3 ± 145.4 (p = 0.20), respectively; TNF-α (pg/mL) were 18.6 ± 12.5 and 16.6 ± 6.0 (p = 0.67), respectively; and IFN-γ (pg/mL) were 79.6 ± 158.5 and 41.9 ± 63.7 (p = 0.56), respectively. Ratios of PCT to CRP were 27.5 ± 34.2 and 3.2 ± 6.8 (p < 0.0001), respectively. The sensitivity and specificity in the diagnosis of AESD using a cutoff of PCT/CRP ratio of 1.0 were 79{\%} and 100{\%}, respectively. These results suggest that PCT and the PCT/CRP ratio are useful in auxiliary diagnosis of the second stage of AESD, and in AESD, PCT is likely to increase through a different mechanism.",
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AU - Kikkawa, Tomonobu

AU - Nosaka, Nobuyuki

AU - Saito, Yukie

AU - Tsukahara, Kohei

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