OC195: Evaluation of perinatal condition in newborns with elevated concentration of cord cardiac troponin I

Abstract

To assess the results of fetal examination and neonatal condition in cases with elevated cord cardiac troponin I concentration. Cardiac troponin I (cTnI) is a specific marker of myocardial injury in adults and children. Perinatal asphyxia can cause cardiac dysfunction. Some 161 samples among fetuses from pathological pregnancies were collected. Twenty-two had an elevated level of cTnI (above 0.1 ng/mL). Disorders in pregnancy, date of gestation, Doppler flow velocimetry in the ductus venosus (DV) and umbilical artery (AU) and vein (DV), mode of delivery, Apgar score and respiratory status after birth were evaluated. cTnI was determined on a dimension clinical chemistry system. There were 22 newborns with a raised level of TnI: seven (31.8%) with SGA, five (22.2%) with fetal cardiac problems (arrhythmia, structural and functional abnormalities), nine (40.9%) with abnormal biophysical test results (abnormal Doppler velocimetry, computerized cardiotocography, biophysical profile score) and six (27.2%) whose mothers who had disorders (diabetes mellitus, hypertension). Results are shown in the table. Median gestational age at delivery was 36.6 (range, 27–43) weeks. Seventeen (77.2%) patients had a Cesarean section. The range of TnI blood concentration was 0.11–6.66 ng/mL in this group. Five (22.7%) had umbilical pH below 7.25. A high level of cTnI was associated with several disorders that could have led to fetal asphyxia. More detailed fetal heart examination is necessary to prove that fetal asphyxia had an impact on heart function.