Preterm labour at 34--36 weeks of gestation: should it be arrested?

Area of Science:

• Neonatal Medicine
• Obstetrics
• Perinatology

Background:

• Current clinical practice limits tocolytic agents and prenatal steroids to preterm labor before 34 weeks of gestation.
• This practice may not adequately address neonatal risks associated with late preterm birth.

Purpose of the Study:

• To evaluate the impact of current treatment guidelines for preterm labor at 34-36 weeks of gestation.
• To assess the incidence of neonatal complications and hospital stay duration in infants born at 34, 35, and 36 weeks.

Main Methods:

• Retrospective analysis of seven-year data for preterm infants born between 34-36 weeks gestation.
• Inclusion criteria: singleton, well-dated pregnancies, no maternal complications, normal vaginal delivery.
• Comparison of perinatal complications and length of hospital stay across gestational age groups (34, 35, 36 weeks).

Main Results:

• Significant reductions in respiratory distress syndrome, nosocomial sepsis, and apnea of prematurity were observed between 34 and 36 weeks.
• Length of hospital stay decreased significantly from 16 days at 34 weeks to 4 days at 36 weeks.
• Severity of respiratory distress syndrome also declined significantly, with most improvement noted after 35 weeks.

Conclusions:

• Neonatal complications remain prevalent at 34 and 35 weeks of gestation.
• The study proposes extending the use of tocolytic agents and maternal prenatal steroids to include preterm labor at 34 and 35 weeks.
• This extended treatment may reduce neonatal morbidity and shorten hospital stays for late preterm infants.