Overview
Failure of growth of the fetal left cardiac ventricle often indicates underlying cardiac dysfunction, potentially leading to fetal compromise such as hydrops fetalis. This condition can be associated with genetic disorders like α-thalassemia and may manifest alongside other fetal growth abnormalities. 2Diagnosis
Key Diagnostic Criteria: Abnormal fetal echocardiographic findings, particularly reduced left ventricular function or size.
Recommended Tests: Detailed fetal echocardiography to assess cardiac structure and function.
Additional Assessments: Fetal biometry (BPD, HC, AC, FL) to evaluate overall growth status 1.
Differentiation: Distinguish from other causes of fetal growth restriction (FGR) and hydrops fetalis 2.Management
First-Line Treatments: Close monitoring with serial echocardiograms and growth assessments.
Adjunctive Treatments: Specific management depends on underlying cause; for genetic disorders like α-thalassemia, genetic counseling and postnatal care planning are crucial 2.
Supportive Care: Antenatal corticosteroids if preterm delivery is anticipated 1.Special Populations
Pregnancy: Focus on close surveillance and multidisciplinary care involving neonatology and cardiology 12.
Postnatal Considerations: Immediate neonatal cardiac support and management of genetic conditions post-birth 2.Key Recommendations
Perform serial fetal echocardiograms and biometric assessments to monitor cardiac function and growth status (Evidence: Moderate 12).
Differentiate fetal cardiac failure from other causes of growth restriction through comprehensive imaging and clinical evaluation (Evidence: Moderate 12).
Offer genetic counseling when congenital disorders like α-thalassemia are suspected or diagnosed (Evidence: Expert opinion 2).References
1 Salomon LJ, Alfirevic Z, Da Silva Costa F, Deter RL, Figueras F, Ghi T et al.. ISUOG Practice Guidelines: ultrasound assessment of fetal biometry and growth. Ultrasound in obstetrics & gynecology : the official journal of the International Society of Ultrasound in Obstetrics and Gynecology 2019. link
2 Rosenblatt J, Loberstajn A, Coulomb A, Stos B, Garel C, Abarah B et al.. Intra-abdominal umbilical vein varix associated with fetal cardiac failure: a pitfall to the prenatal diagnosis of α-zero-thalassemia. Fetal diagnosis and therapy 2013. link