Am J Perinatol 2019; 36(14): 1464-1470
DOI: 10.1055/s-0039-1677867
Original Article
Thieme Medical Publishers 333 Seventh Avenue, New York, NY 10001, USA.

Perinatal Factors Affecting Coagulation Parameters at Birth in Preterm and Term Neonates: A Retrospective Cohort Study

Authors

  • Hayato Go

    1   Department of Pediatrics, Fukushima Medical University School of Medicine, Fukushima, Japan
  • Hitoshi Ohto

    2   Department of Blood Transfusion and Transplantation Immunology, Fukushima Medical University School of Medicine, Fukushima, Japan
  • Kenneth E. Nollet

    2   Department of Blood Transfusion and Transplantation Immunology, Fukushima Medical University School of Medicine, Fukushima, Japan
  • Nozomi Kashiwabara

    1   Department of Pediatrics, Fukushima Medical University School of Medicine, Fukushima, Japan
  • Kei Ogasawara

    1   Department of Pediatrics, Fukushima Medical University School of Medicine, Fukushima, Japan
  • Mina Chishiki

    1   Department of Pediatrics, Fukushima Medical University School of Medicine, Fukushima, Japan
  • Kyohei Miyazaki

    1   Department of Pediatrics, Fukushima Medical University School of Medicine, Fukushima, Japan
  • Kenichi Sato

    1   Department of Pediatrics, Fukushima Medical University School of Medicine, Fukushima, Japan
  • Maki Sato

    1   Department of Pediatrics, Fukushima Medical University School of Medicine, Fukushima, Japan
  • Yukihiko Kawasaki

    1   Department of Pediatrics, Fukushima Medical University School of Medicine, Fukushima, Japan
  • Nobuo Momoi

    1   Department of Pediatrics, Fukushima Medical University School of Medicine, Fukushima, Japan
  • Mitsuaki Hosoya

    1   Department of Pediatrics, Fukushima Medical University School of Medicine, Fukushima, Japan
Further Information

Publication History

28 September 2018

11 December 2018

Publication Date:
31 January 2019 (online)

Abstract

To date, few studies have investigated whether perinatal factors affect coagulation parameters at birth in preterm and term neonates. We retrospectively investigated coagulation factors on day 1 in 609 consecutive neonates admitted to our neonatal intensive care unit between January 2010 and December 2017. We measured coagulation factors on day 1 using peripheral blood samples. Multivariate analysis revealed that prothrombin time–international normalized ratio correlated with intraventricular hemorrhage (p = 0.000; β = 0.180) and placental abruption (PA; p = 0.000; β = 0.142). Activated partial thromboplastin time (aPTT) correlated with birth weight (BW; p = 0.000; β =  − 0.217), gestational age (GA; p = 0.000; β =  − 0.282), and PA (p = 0.000; β = 0.181). Fibrinogen concentration was associated with respiratory distress syndrome (p = 0.007; β =  − 0.114), pregnancy-induced hypertension (p = 0.000; β =  − 0.141), and Apgar score at 1 minute (p = 0.043; β = 0.147). Furthermore, the level of d-dimer inversely correlated with Apgar score at 5 minutes (p = 0.049). Finally, antithrombin III levels positively correlated with GA (p = 0.000) and BW (p = 0.000). Thus, maternal and neonatal complications affect coagulation parameters in preterm and term neonates.