J Korean Soc Neonatol. Search


Journal of the Korean Society of Neonatology 1997;4(1):48-52.
Published online January 1, 2001.
Spontaneous Closing Time of PDA in Term and Preterm Infants Without Respiratory Distress Syndrome.
Seong Ock Jo, Heon Seok Han, Beom Soo Park, Soo Ahn Chae
Department of Pediatrics, College of Medicine, Chungbuk National University, Cheongju, Korea.
To investigate the spontaneous closing time of PDA in term and preterm infants without respiratory distress syndrome.
For twenty four term and sixteen preterm infants without RDS, prespective echocardiography was performed within 24hr of birth, which was repeated everyday till spontaneous closure of ductus. At the same time, LA/Ao ratio in M-mode echocardiography and blood pressure were checked. RESULT: In term infants, spontaneous ductal closure rate was 15% in the first day of life, 57.7% in the second day, 88.5% in the third day, and 100% in the fourth day. For the preterm infants without RDS, the spontaneous ductal closure rate was 25%, 73.3%, 86.7%, 93.3% in each day. One preterm infant dided of meningitis at second day of life was excluded. One preterm infant (11,23 who had patent ductus arteiosus at fourth day of llife showed persistent ductus at 6 months of life.
Spontaneous closure of patent ductus arteriosus will not occur if there is persistent shunt after 4th day of life in term and preterm infants without RDS.
Key Words: Spontaneous closure of PDA; Term; Preterm infant without RDS


Browse all articles >

Editorial Office
34, Sajik-ro 8–gil(King’s Gargen 3 Block 1207), Jongno-gu, Seoul 03174, Republic of Korea
Tel: +82-2-730-1993    Fax: +82-2-730-1994    E-mail: neonate2002@naver.com                

Copyright © 2024 by The Korean Society of Neonatology.

Developed in M2PI

Close layer
prev next