Complex multigestational anomalies.

Area of Science:

• Perinatology
• Pediatric Surgery
• Maternal-Fetal Medicine

Background:

• Multiple gestation pregnancies present unique challenges for maternal and fetal health.
• Advances in diagnosis and intervention have improved outcomes for at-risk pregnancies.
• Pediatric surgeons require foundational knowledge of these complex gestations.

Purpose of the Study:

• To inform pediatric surgeons about the implications of multiple gestation pregnancies.
• To highlight the importance of understanding amnionicity and chorionicity in risk assessment.
• To review specific complications associated with monochorionic pregnancies.

Main Methods:

• Review of current literature on multiple gestation pregnancies.
• Focus on monochorionic pregnancies and associated fetal complications.
• Discussion of diagnostic and interventional strategies.

Main Results:

• Monochorionic pregnancies are at increased risk for twin-twin transfusion syndrome (TTTS), twin reversed arterial perfusion (TRAP) sequence, twin anemia polycythemia sequence (TAPS), and selective fetal intrauterine growth restriction (sIUGR).
• These conditions carry a significant risk of fetal demise.
• Early recognition of warning signs and appropriate surveillance are critical.

Conclusions:

• Understanding chorionicity is key to identifying high-risk multiple gestation pregnancies.
• Pediatric surgeons must be aware of potential complications and the benefits of specialized fetal care centers for in utero interventions.