Follow-up of 2000 second-trimester amniocenteses

Area of Science:

• Perinatology
• Medical Genetics
• Obstetrics

Background:

• Second-trimester amniocentesis is a common prenatal diagnostic procedure.
• Indications often include advanced maternal age (≥34 years).
• Assessing the safety and outcomes of amniocentesis is crucial for patient counseling.

Purpose of the Study:

• To evaluate the perinatal outcomes of second-trimester amniocentesis.
• To determine if the procedure increases risks of fetal loss, malformations, or other complications.

Main Methods:

• Retrospective analysis of 2000 consecutive second-trimester amniocenteses.
• Comparison of outcomes (fetal loss, malformations, prematurity, respiratory issues) with control populations.
• Data collected from a single large medical center.

Main Results:

• Total fetal loss was 2.7%, slightly higher than the 2.2% in controls.
• Congenital malformations occurred in 1.6% of the study group versus 1.9% in controls.
• Rates of prematurity and persistent respiratory difficulties were similar to control groups.

Conclusions:

• Second-trimester amniocentesis performed at a large center did not demonstrate an increased risk of congenital malformations.
• The procedure's associated risks for fetal loss, prematurity, and respiratory issues were comparable to general obstetric populations.