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Related Experiment Videos

Fetal echocardiography.

S Srinivasan1

  • 1Institute of Cardiovascular Diseases, Madras Medical Mission, Chennai. mmmbits@vsnl.com

Indian Journal of Pediatrics
|August 25, 2000
PubMed
Summary
This summary is machine-generated.

Fetal echocardiography advances allow detailed cardiac evaluation in high-risk pregnancies. While effective for many congenital heart diseases (CHD), a comprehensive exam including outflow views is crucial for accurate prenatal diagnosis and management.

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Area of Science:

  • Cardiology
  • Prenatal Medicine
  • Medical Imaging

Background:

  • Fetal echocardiography has evolved significantly since 1972, enabling detailed cardiac anatomy assessment in the second trimester.
  • Indications for fetal echo include high-risk pregnancies with potential congenital heart disease (CHD) due to factors like extracardiac anomalies, family history, maternal diabetes, or connective tissue disorders.

Purpose of the Study:

  • To review the capabilities and limitations of fetal echocardiography in diagnosing congenital heart disease (CHD).
  • To emphasize the importance of comprehensive echocardiographic examination, including outflow views, for effective prenatal diagnosis and management planning.

Main Methods:

  • Review of existing literature on fetal echocardiography and congenital heart disease diagnosis.
  • Analysis of the sensitivity and limitations of fetal echocardiography based on various studies and techniques.

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Main Results:

  • Reported sensitivity of fetal echo for CHD detection varies widely (4-96%) depending on equipment, training, and methodology.
  • Certain CHDs like atrial septal defects and patent ductus arteriosus are not diagnosable in utero as they are part of normal fetal physiology.
  • Difficult-to-diagnose conditions include coarctation of the aorta, small ventricular septal defects, mild valvular stenosis, and partial anomalous pulmonary venous drainage.
  • Fetal ultrasound is valuable for diagnosing, monitoring, and managing fetal arrhythmias.

Conclusions:

  • Prenatal diagnosis of CHD through fetal echocardiography is vital for optimal postnatal management, such as planning delivery at specialized centers for ductus-dependent lesions.
  • Future advancements in fetal medicine, including fetal cardiac surgery, will rely heavily on echocardiography's role.
  • A thorough echocardiographic examination, extending beyond the four-chamber view to include outflow tracts, is essential for detecting a broader range of CHDs requiring early intervention.