American journal of perinatology · 2021
Cord-Blood High-Sensitivity Troponin-I Reference Interval and Association with Early Neonatal Outcomes.
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Mondal Tapas, Ryan Paul M, Gupta Kaaran, Radovanovic George, Pugh Edward, Chan Anthony K C, Hill Stephen
Аннотация
OBJECTIVE: This study was aimed to establish a reference interval for high-sensitivity cardiac troponin I (hs-cTnI) in umbilical cord blood of infants and to assess its association with the risk of predetermined early neonatal outcomes in a high-acuity tertiary care hospital.
STUDY DESIGN: Umbilical cord-blood samples were collected and hs-cTnI was measured in all infants born between August 2015 and September 2015 at McMaster Children's Hospital (n = 256). Gestational age, birth weight, Apgar's scores, age in days at which feeding was established, neonatal intensive care unit (NICU) admission, and discharge in days after birth were recorded.
RESULTS: The 90th, 95th, and 99th percentiles for the term infant subcohort were 19.75, 41.45, and 166.30 ng/L, respectively. We observed decreased mean gestational ages and birth weights in both the 90th (37.7 weeks; 2,961.4 g) and 95th percentiles (37.1 weeks; 2,709.9 g) when compared with the remaining infants. Moreover, levels of hs-cTnI were significantly higher in infants with respiratory distress requiring intervention (p < 0.05), low birth weight infants (p < 0.01), preterm infants (p < 0.001), and those requiring NICU admission (p < 0.01). Multiple linear regression of the recorded demographic factors revealed prematurity (gestational age <35 weeks: coefficient 0.346 ± 0.160, p < 0.05; gestational age <37 weeks: coefficient 0.253 ± 0.105, p < 0.05) and male sex (coefficient 0.138 ± 0.047; p < 0.01) to be most predictive of log-hs-cTnI levels.
CONCLUSION: This study establishes the reference values for cord-blood hs-cTnI in infants at a tertiary care center. Premature and sick infants requiring NICU admission had significantly higher levels of hs-cTnI.
KEY POINTS: · Established the 90th, 95th, and 99th percentiles of neonatal cord-blood hs-cTnI in term infants as 19.75, 41.45, and 166.30 ng/L, respectively.. · Infants with hs-cTnI levels exceeding the 90th percentile had lower gestational ages and birth weights with higher rates of NICU admissions.. · Infants with respiratory distress or requiring NICU admission were found to have higher levels of hs-cTnI..
STUDY DESIGN: Umbilical cord-blood samples were collected and hs-cTnI was measured in all infants born between August 2015 and September 2015 at McMaster Children's Hospital (n = 256). Gestational age, birth weight, Apgar's scores, age in days at which feeding was established, neonatal intensive care unit (NICU) admission, and discharge in days after birth were recorded.
RESULTS: The 90th, 95th, and 99th percentiles for the term infant subcohort were 19.75, 41.45, and 166.30 ng/L, respectively. We observed decreased mean gestational ages and birth weights in both the 90th (37.7 weeks; 2,961.4 g) and 95th percentiles (37.1 weeks; 2,709.9 g) when compared with the remaining infants. Moreover, levels of hs-cTnI were significantly higher in infants with respiratory distress requiring intervention (p < 0.05), low birth weight infants (p < 0.01), preterm infants (p < 0.001), and those requiring NICU admission (p < 0.01). Multiple linear regression of the recorded demographic factors revealed prematurity (gestational age <35 weeks: coefficient 0.346 ± 0.160, p < 0.05; gestational age <37 weeks: coefficient 0.253 ± 0.105, p < 0.05) and male sex (coefficient 0.138 ± 0.047; p < 0.01) to be most predictive of log-hs-cTnI levels.
CONCLUSION: This study establishes the reference values for cord-blood hs-cTnI in infants at a tertiary care center. Premature and sick infants requiring NICU admission had significantly higher levels of hs-cTnI.
KEY POINTS: · Established the 90th, 95th, and 99th percentiles of neonatal cord-blood hs-cTnI in term infants as 19.75, 41.45, and 166.30 ng/L, respectively.. · Infants with hs-cTnI levels exceeding the 90th percentile had lower gestational ages and birth weights with higher rates of NICU admissions.. · Infants with respiratory distress or requiring NICU admission were found to have higher levels of hs-cTnI..