Procalcitonin and Neonatal Sepsis: Is This the Biomarker We Are Looking For?

2017 ◽  
Vol 36 (6) ◽  
pp. 380-384 ◽  
Author(s):  
Susan Givens Bell

AbstractResearchers estimate the incidence of early onset sepsis as 0.77–1/1,000 live births. It remains as one of the leading causes of neonatal deaths. Clinicians and researchers continue to search for biomarkers for specific neonatal disease processes. Clinicians frequently trend C-reactive protein levels during evaluation for neonatal sepsis. Recently, researchers have begun to explore procalcitonin as a potentially useful diagnostic marker for neonatal sepsis.

2012 ◽  
Vol 4 (1) ◽  
pp. e2012028 ◽  
Author(s):  
Alireza Abdollahi ◽  
Saeed Shoar ◽  
Fatemeh Nayyeri ◽  
Mamak Shariat

Neonatal sepsis is a major cause of morbidities and mortalities mostly remarkable in the third world nations .We aimed to assess the value of simultaneous measurement of procalcitonin (PCT) and interleukin-6 (IL-6) in association with high sensitive- C reactive protein in prediction of early neonatal sepsis.We performed a follow- up study on 95 neonates who were below 12 hours (h) of age, had clinical signs of sepsis or maternal risk factors for sepsis. Neonates were assigned to 4 groups including “proven early-onset sepsis”, “clinical early-onset sepsis”, “negative infectious status”, and “uncertain infectious status”. Blood samples were obtained within the first 12 h of birth repeated between 24 hours and 36 hours of age for determination of serum levels of PCT, IL-6, high sensitivie- C Reactive Protein (hs-CRP), and white blood cell (WBC) count.On admission, neonates with sepsis had a higher WBC count, IL-6, PCT, and hs-CRP levels compared with those neonates without sepsis. This remained significant even after 12-24 hours of admission. Also, patients with clinical evidences of sepsis had a higher serum level of PCT and IL-6 within 12-24 hours after admission compared to the patients with uncertain sepsis. In final The combination of IL-6, hs-CRP, and PCT seems to be predictive in diagnosis of early onset neonatal sepsis.


2020 ◽  
Vol 8 (1) ◽  
pp. 263-270
Author(s):  
Priti Chowdhary ◽  
Ritesh Ranjan ◽  
Anita Pandey

Introduction: Neonatal sepsis is a major cause of morbidity and mortality most remarkable in the third world nations. Early diagnosis and subsequent therapy for the infected infants may play a vital role in lowering such mortality and morbidity rates. Aim: To study the clinical profile of neonatal sepsis in a tertiary care hospital and to correlate the findings with quantitative C-reactive protein (CRP) and Interleukin-6 (IL-6). Settings and Design: A total of 296 neonates admitted in neonatal intensive care unit (NICU) with clinical signs and symptoms suggestive of sepsis were studied. Based on their age the study population was divided into early onset sepsis (EOS): age group less 72 hours and late onset sepsis (LOS): age group more than 72 hours. Also healthy neonates who had no signs and symptoms of sepsis were taken as control for the study. Material and Methods: Blood culture was carried out using BacT/ Alert-3D automated system. Quantitative CRP by nephelometry and IL-6 by ELISA was done in all culture positive cases and controls. Correlation of detection of cases of sepsis by quantitative CRP and IL-6 with blood culture was carried out. Statistical analysis: Statistical parameters such as sensitivity, specificity, predictive values, accuracy and significance levels were calculated Results: In EOS the sensitivity and negative predictive value (NPV) of IL-6 was 62.32% and 33.33% respectively as compared to sensitivity of 27.5% and NPV of 26.47% of CRP. Conclusions: IL-6 is a good marker for early onset sepsis than CRP detecting a greater number of sepsis cases.


2017 ◽  
Vol 4 (2) ◽  
pp. 527 ◽  
Author(s):  
Reeba Patrick ◽  
Aswathy Rajan ◽  
Ashvij Shriyan

Background: Of the 2.8 million neonatal deaths, worldwide, 0.43 million is contributed by sepsis alone. The objective of this study was to determine the levels of umbilical cord C-reactive protein and assess the suitability of this test in diagnosing early onset sepsis in newborns born to mothers with no risk factors for intrapartum infection. To determine the influence of other factors such as parity, birth weight and mode of delivery on the levels of cord CRP.Methods: CRP levels in cord blood were estimated for 103 consecutive newborns delivered at a tertiary care teaching hospital. These babies were monitored for signs of sepsis for 72 hours and were later followed up with serum CRP and blood cultures.Results: A prospective cohort study of 103 consecutive newborns were taken of which 53.4% were male babies. Comparison of cord CRP levels of baseline characteristics revealed significant elevation in babies born to multipara mothers (p = 0.0028) and in low birth weight babies (p = 0.05), while there were no significant changes in different modes of delivery. The mean cord CRP of the study group was 0.694±0.2979. Out of 104 babies, 16 had elevated cord CRP (above 1.1mg/l) of these, 12 babies were later confirmed to have sepsis. The mean cord CRP level in babies with EOS was 1.3±0.255 (p = 0.001). A sensitivity of 100%, specificity of 90.9%, positive predictive value of 75% and negative predictive value of 100% was determined.Conclusions: This study confirms that cord CRP is an effective marker to predict EONS. An optimal concentration of cord CRP > 1.1 mg/L has maximal sensitivity and specificity to predict EONS.


2012 ◽  
Vol 27 (6) ◽  
pp. 674 ◽  
Author(s):  
Sung Youn Lee ◽  
Kyo Hoon Park ◽  
Eun Ha Jeong ◽  
Kyung Joon Oh ◽  
Aeli Ryu ◽  
...  

2021 ◽  
Vol 9 ◽  
Author(s):  
Arturo Alejandro Canul-Euan ◽  
Gibran Zúñiga-González ◽  
Janelly Estefania Palacios-Luna ◽  
Rolando Maida-Claros ◽  
Néstor Fabián Díaz ◽  
...  

Background: Extracellular heat-shock proteins (eHsp) are highly conserved molecules that play an important role in inflammatory diseases and have been quantified in plasma from patients with infectious diseases, including sepsis. There is a constant search for dependable biochemical markers that, in combination with conventional methods, could deliver a prompt and reliable diagnosis of early-onset neonatal sepsis.Objective: We sought to assess the level of eHsp-27, eHsp-60, eHsp-70, and tumor necrosis factor-alpha (TNFα) in plasma of healthy neonates at term and infants with early-onset neonatal sepsis.Methods: This study included 34 newborns that were classified as healthy neonates at term (blood samples from the umbilical cord, n = 23) or infants with early-onset neonatal sepsis (blood samples obtained from umbilical artery by standard sterile procedures before starting a systemic antibiotic intervention, n = 11). All blood samples were centrifuged, and the plasma recovered to determine eHsp-27, eHsp-60, eHsp-70, and TNFα levels by ELISA.Results: Our results indicate that the level of eHsp-27 in healthy neonates at term was 0.045 ± 0.024 pg/ml. This value decreased 2.5-fold in infants with early-onset neonate sepsis (0.019 ± 0.006 pg/ml, p = 0.004). In contrast, the levels of eHsp-60 and eHsp-70 in healthy neonates at term were 13.69 ± 5.3 and 4.03 ± 2.6 pg/ml, respectively. These protein levels increased significantly 1.8- and 1.9-fold in the plasma of infants with early-onset neonatal sepsis (p ≤ 0.001). The level of TNFα in healthy neonates at term was 2.94 ± 0.46 pg/ml, with a 3.0-fold increase in infants with early-onset neonatal sepsis (8.96 ± 0.72 pm/ml, p ≤ 0.001). The sensitivity, specificity, positive predictive value (PPV), and negative predictive value (NPV) of eHsp compared with that of C-reactive protein were 73.3, 60.0, 47.8, and 33.3%, respectively.Conclusion: This study demonstrated a consistent increase of eHsp-60 and eHsp-70 in the plasma of infants diagnosed with early-onset neonatal sepsis. These proteins showed higher sensitivity and specificity than C-reactive protein and blood culture test.


Neonatology ◽  
2012 ◽  
Vol 102 (1) ◽  
pp. 25-36 ◽  
Author(s):  
Nora Hofer ◽  
Eva Zacharias ◽  
Wilhelm Müller ◽  
Bernhard Resch

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