Association between Slow and Rapid Weight Gain before 36 Weeks of Corrected Age and 6-Year-Developmental Quotient in Infants Born at <26 Weeks of Gestation.

Objective:  The postnatal growth of preterm infants is influenced by various factors; however, the association between growth and long-term outcomes in extremely preterm infants remains unclear. Therefore, we aimed to determine the association between 6-year development and body weight (BW) at 36 weeks of corrected age (CA) in extremely preterm infants.

Study Design:  We conducted a retrospective observational study including extremely preterm infants born at < 26 weeks of gestation.

Association between neonatal phototherapy and sleep: The Japan Environment and Children's Study.

This observational cohort study aimed to evaluate the association between the duration of neonatal phototherapy and sleep-and-wakefulness states at 1 month, 1.5 years, and 3 years of age. We analysed data from 77,876 infants using the Japan Environment and Children's Study, a nationwide birth cohort study.

Phototherapy and risk of developmental delay: the Japan Environment and Children's Study.

Unlabelled: This observational cohort study aimed to examine the association between the duration of phototherapy for neonatal jaundice and the risk of developmental delay at 3 years of age using nationwide birth cohort data. Data from 76,897 infants were analyzed. We divided participants into four groups: no phototherapy, short phototherapy (1-24 h), long phototherapy (25-48 h), and very long phototherapy (> 48 h).

The Duration of Neonatal Phototherapy and Allergic Disorders: The Japan Environment and Children's Study.

Introduction: Currently, the association between the duration of neonatal phototherapy and the risk of allergic disorders has not been reported. This observational cohort study aimed to examine the association between allergic disorders, including food allergies, that are present before 3 years of age and the duration of phototherapy using the nationwide birth cohort data.

Methods: The Japan Environment and Children's Study was a nationwide birth cohort study.

Feasibility of portable capnometer for mechanically ventilated preterm infants in the delivery room.

This study aimed to determine whether a specific portable capnometer (EMMA™) can facilitate the maintenance of an appropriate partial pressure of arterial carbon dioxide (PaCO) in intubated preterm infants in the delivery room. This study included preterm infants with a gestational age of 26 + 0 to 31 + 6 weeks who required intubation in the delivery room. We prospectively identified 40 infants who underwent the EMMA™ monitoring intervention group and 43 infants who did not undergo monitoring (historical control group).

Availability of portable capnometers in children with tracheostomy.

Background: A capnometer is a noninvasive monitor that is used to assess patients' respiratory status. This study was performed to evaluate the availability of a portable capnometer in children with tracheostomy.

Methods: This retrospective study included children with tracheostomy who were treated at the Osaka Women's and Children's Hospital Osaka, Japan, from 1 September 2018 to 31 October 2019.

Association between amount of dopamine and infections in extremely preterm infants.

This study aimed to assess the effect of dopamine on the development of infections after birth in extremely preterm infants. We retrospectively identified 258 extremely preterm infants (born at < 28 gestational weeks) between July 2009 and December 2018 in a tertiary neonatal intensive care unit (NICU). We extracted data on potential risk factors for infection, total amount of dopamine, and infection history during NICU stay for each infant.