In utero therapy for fetal thoracic abnormalities

Area of Science:

• Perinatology
• Fetal Medicine
• Pediatric Surgery

Background:

• Fetal thoracic lung anomalies are uncommon conditions affecting prenatal development.
• Early and accurate diagnosis is crucial for appropriate management and improved outcomes.
• These anomalies can lead to significant physiological complications, including hydrops fetalis.

Purpose of the Study:

• To review diagnostic modalities for fetal thoracic lung anomalies.
• To discuss the implications of mediastinal shift and hydrops fetalis.
• To explore current therapeutic approaches and their limitations.

Main Methods:

• Review of diagnostic imaging techniques: ultrasound, MRI, and Doppler studies.
• Analysis of perinatal surveillance requirements for significant lesions.
• Evaluation of in utero therapies versus postnatal management.

Main Results:

• Diagnosis relies on advanced imaging; large lesions necessitate close monitoring.
• Cardiovascular compromise and hydrops can arise from mediastinal shift.
• In utero therapies are variable, lacking large-scale trial data, and often reserved for impending fetal demise.

Conclusions:

• Most fetal lung lesions are managed with observation and postnatal treatment.
• Impending hydrops fetalis mandates consideration of in utero intervention to avert mortality.
• Maternal morbidity, including MIRROR syndrome, is a risk associated with prolonged fetal hydrops and interventions.