%0 Journal Article %T Electrocardiographic Parameters in Neonates with Hyperbilirubinemia in Northeast Iran %J Iranian Journal of Neonatology %I Mashhad University of Medical Sciences %Z 2251-7510 %A Radgoudarzi, Mohammad %A Alaee, Ehsan %A Besharat, Mahsa %A Porreza, Navid %D 2022 %\ 04/01/2022 %V 13 %N 2 %P 120-124 %! Electrocardiographic Parameters in Neonates with Hyperbilirubinemia in Northeast Iran %K long QTc interval %K Neonatal hyperbilirubinemia %K Tachycardia %R 10.22038/ijn.2022.59816.2141 %X Background: Hyperbilirubinemia, a common illness in neonates, imposes a risk of arrhythmia and sudden death, particularly during blood transfusions. The present study aimed to evaluate the electrocardiographic parameters in term newborns with hyperbilirubinemia in Gorgan, northeast Iran.Methods: This cohort study was conducted on 101 term neonates admitted to our academic hospital with hyperbilirubinemia (direct bilirubin> 20 mg/dL). Those with sepsis, TORCH[(T)toxoplasmosis, (O)ther Agents, (R)ubella (also known as German Measles), (C)ytomegalovirus, and (H)erpes Simplex], congenital heart disease, polycythemia, and asphyxia were excluded. An electrocardiogram (ECG) was taken before the initiation of phototherapy, and heart rate, PR interval, QRS duration, QTc interval, and ST-T changes were recorded after every 8 h during the phototherapy.Results: In this population of neonates with a mean age of 6.09±3.57 days, the results demonstrated that after 32 h of phototherapy, bilirubin decreased to less than 20 mg/dL. Following that, intensive phototherapy was replaced with the conventional method. Changes in ECG parameters were not significantly related to changes in bilirubin levels (P> 0.05).Conclusion: As evidenced by the results of this study, there was no significant relationship between ECG parameters and serum level of bilirubin; nonetheless, changes in cardiovascular parameters along with bilirubin levels were remarkable.   %U https://ijn.mums.ac.ir/article_20310_1dc7acc7c7eeab9125b5dccc9028af7e.pdf