Can the nonstress test predict congenital sepsis?

Area of Science:

• Obstetrics and Gynecology
• Neonatal Health
• Maternal-Fetal Medicine

Background:

• Prolonged premature rupture of the membranes (PROM) increases the risk of congenital sepsis in newborns.
• Accurate prediction of congenital sepsis is crucial for timely intervention and improved neonatal outcomes.
• The nonstress test (NST) is commonly used to assess fetal well-being.

Purpose of the Study:

• To investigate the predictive value of the nonstress test (NST) for congenital sepsis in pregnancies complicated by prolonged premature rupture of the membranes (PROM).

Main Methods:

• A retrospective controlled study was conducted.
• Nonstress tests (NSTs) from infants with congenital sepsis (n=13) were compared to those from matched controls (n=13) with PROM but no infection.
• NSTs were coded, blinded, and analyzed for reactivity.

Main Results:

• Eleven of 13 infants with congenital sepsis had a reactive NST, while two had a nonreactive test.
• The control group also showed 11 reactive and two nonreactive NSTs.
• The sensitivity of NST for predicting congenital sepsis was 15.4%, specificity was 84.6%, and positive/negative predictive values were 50%.

Conclusions:

• The nonstress test (NST) demonstrates low sensitivity and limited predictive value for congenital sepsis in the context of prolonged PROM.
• NST results are not a reliable indicator for predicting congenital sepsis in this high-risk pregnancy group.
• Alternative or additional diagnostic methods may be necessary for accurate prediction and management of congenital sepsis in PROM pregnancies.