The Left ventricular out flow tract size in preterm neonate

Authors

  • Uthen Bunmee Faculty of Medicine, Ramathibodi Hospital, Mahidol University

DOI:

https://doi.org/10.14456/jmu.2021.21

Keywords:

Left ventricular out flow tract, LVOT, Preterm neonate, Echocardiography

Abstract

          Preterm infants were born with developing organs. Comparing to full term neonates, they had different size of cardiac structures and physiology. Normal range of parameters from full term newborns might not represent preterm infants. Also, there were few studies mentioned normal range of parameters in Asian population. LVOT is one of the important parameters using frequently for compared and described cardiac  abnormal in preterm neonates. Thus, we proposed our study about LVOT size in preterm infants. This is a retrospective study. The echocardiographic results of 102 preterm infants performed within first month of life were included. The study populations did not have major cardiac defects. Fifty-three percent of study populations were male. There was no statistical significant different of LVOT size in both genders. On the other hand, bodyweight correlated with LVOT size. Preterm infants with bodyweight more than 1,400 g had statistical significant larger LVOT size (p-value < 0.05). Preterm infants with bodyweight under and more than 1,400 g had LVOT size between 5.1-5.5 mm, 5.5-5.7 mm, respectively. 60 patients were followed up. There was no different of LVOT size when having and not having ductus arteriosus. These results could be an important knowledge base and option for echocardiographer to use as a reference of LVOT size and made it easier to interpret the results in Thai children.

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Published

2021-08-26

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Research Articles