Citation, DOI, disclosures and article data
Citation:
Radswiki T, Elfeky M, Knipe H, et al. Fetal cardiomegaly. Reference article, Radiopaedia.org (Accessed on 24 Mar 2025) https://doi.org/10.53347/rID-15004
Fetal cardiomegaly (FC) refers to an enlarged fetal heart. It is variably defined with some sources stating the cut-off as a fetal cardio-thoracic circumference above two standard deviations 7.
Pathology
It can arise from a number of situations:
Distribution
In the vast majority of cases the cardiac enlargement involves the right-sided chambers with the right atrium being involved in ~90% of cases.
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1. Chaoui R, Bollmann R, Göldner B et-al. Fetal cardiomegaly: echocardiographic findings and outcome in 19 cases. Fetal. Diagn. Ther. 9 (2): 92-104. - Pubmed citation
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2. Henrich W, Fuchs I, Bührer C et-al. Isolated cardiomegaly in the second trimester as an early sign of fetal hydrops due to intracranial arteriovenous malformation. J Clin Ultrasound. 2003;31 (8): 445-9. doi:10.1002/jcu.10192 - Pubmed citation
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3. Koven MB, Cohen HL, Goldman MA. Fetal intracranial AVM presenting as enlarged cardiac chamber. J Ultrasound Med. 1992;11 (4): 177. J Ultrasound Med (citation) - Pubmed citation
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4. Keck C, Wilhelm C, Wellens E et-al. Fetal cerebral AV-malformation and cardiomegaly, diagnostic and therapeutic problems. J Perinat Med. 1998;26 (3): 225-30. - Pubmed citation
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5. Wuttikonsammakit P, Uerpairojkit B, Tanawattanacharoen S. Causes and consequences of 93 fetuses with cardiomegaly in a tertiary center in Thailand. Arch. Gynecol. Obstet. 2011;283 (4): 701-6. doi:10.1007/s00404-010-1426-0 - Pubmed citation
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6. Kirkpatrick AD, Podberesky DJ, Gray AE et-al. Best cases from the AFIP: Placental chorioangioma. Radiographics. 27 (4): 1187-90. doi:10.1148/rg.274065207 - Pubmed citation
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7. Abuhamad A, Chaoui R. A Practical Guide to Fetal Echocardiography, Normal and Abnormal Hearts. Lippincott Williams & Wilkins. (2009) ISBN:0781797578. Read it at Google Books - Find it at Amazon
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