Lung Ultrasonography for the Diagnosis of Respiratory Distress Syndrome in Late Preterm Infants: Changing Incidence - A Single Center Experience
- Author(s)
- So Young Sin; Min Ji Jin; Na Hyun Lee; Jae Hyun Park; Chun Soo Kim; Sang Lak
- Keimyung Author(s)
- Kim, Chun Soo; Park, Jae Hyun; Lee, Sang Lak
- Department
- Dept. of Pediatrics (소아청소년학)
- Journal Title
- Neonatal Medicine
- Issued Date
- 2017
- Volume
- 24
- Issue
- 1
- Keyword
- Neonatal respiratory distress syndrome; Ultrasonic diagnosis
- Abstract
- Purpose: Ultrasonography is non-ionizing, easy to operate, and performed at bedside
in neonatal intensive care unit (NICU). We investigated the incidence of respiratory
distress syndrome (RDS) with or without using lung ultrasound (LUS) in late
preterm infants with postnatal respiratory difficulties.
Methods: We retrospectively reviewed medical records of 494 late preterm infants
born at 34–36 weeks’ gestation at Keimyung University Dongsan Medical Center. Fifty
infants with postnatal respiratory difficulties were admitted to the NICU between
May 2015 to October 2015 (period I), and forty-one were between November 2015 to
February 2016 (period II). The diagnosis of RDS was based on chest radiography in
period I. LUS was additionally performed at bedside in period II. All infants with RDS
were received exogenous surfactant therapy.
Results: The overall incidence of RDS with surfactant replacement therapy was decreased
in period II period II (9.4%, 20/212) compared to period I (14.5%, 41/282)
(P=0.088). In terms of infants with postnatal respiratory difficulties, the incidence of
RDS in period II (48.8%, 20/41) was significantly lower than that in period I (82.0%,
41/50) (P=0.001). There are no difference in the rate of reintubation, repeated doses
of surfactant, oxygen demand at 48 hours after birth, air leak syndrome, pulmonary
hemorrhage, persistent pulmonary hypertension of newborn, and mortality (P> 0.05).
Conclusion: We could decrease the incidence of RDS with surfactant replacement
therapy by using LUS in late preterm infants with postnatal respiratory difficulties.
Further prospective studies are needed to apply LUS clinically to diagnose RDS.
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