Fetal cardiac arrhythmias: Current evidence.

Area of Science:

• Perinatology
• Fetal Cardiology
• Diagnostic Imaging

Background:

• Persistent fetal arrhythmias can lead to hydrops, preterm delivery, and increased perinatal morbidity/mortality.
• Early diagnosis during routine obstetric ultrasound is critical but challenging.
• Requires a multidisciplinary team of fetal ultrasonography specialists.

Purpose of the Study:

• To review key features for improving fetal arrhythmia diagnosis via ultrasound.
• To highlight diagnostic methods and intrauterine management strategies.
• To enhance diagnostic accuracy and improve perinatal outcomes.

Main Methods:

• Review of M-mode and Doppler ultrasound/echocardiography techniques.
• Inclusion of high-quality imaging examples of normal and abnormal fetal heart rhythms.
• Discussion of various fetal arrhythmias including premature contractions, heart block, and tachycardias.

Main Results:

• Ultrasound, particularly M-mode and Doppler, enhances diagnostic accuracy for fetal arrhythmias.
• Detailed imaging aids in identifying conditions like supraventricular tachycardia and atrial flutter.
• Management and treatment updates focus on improving fetal outcomes.

Conclusions:

• Improved prenatal diagnosis of fetal arrhythmias is achievable with advanced ultrasound techniques.
• Timely intervention and management can mitigate risks associated with fetal arrhythmias.
• Collaborative specialist efforts are essential for effective prenatal cardiac screening and management.