Aortic Isthmus and Cardiac Monitoring of the Growth-Restricted Fetus

Ganesh Acharya, Ashlie Tronnes, Juha Rasanen

Research output: Contribution to journalReview articlepeer-review

18 Scopus citations


Aortic isthmus acts as an arterial watershed between the cerebral and placental circulations, connecting 2 parallel fetal ventricular pumps. It plays a crucial role in the fetal circulatory dynamics. Information about aortic isthmus blood flow may improve the management of sick fetuses. However, perceived technical difficulties limit the clinical use of aortic isthmus Doppler for fetal hemodynamic monitoring. Changes in aortic isthmus blood flow pattern seem to reflect fetal cardiovascular status accurately and predict perinatal and long-term neurodevelopmental outcome in intrauterine growth restriction. This review evaluates the available scientific information and discusses the role of aortic isthmus in fetal circulation.

Original languageEnglish (US)
Pages (from-to)113-125
Number of pages13
JournalClinics in Perinatology
Issue number1
StatePublished - Mar 2011


  • Aortic isthmus doppler
  • Fetal circulation
  • Fetal echocardiography
  • Fetal heart

ASJC Scopus subject areas

  • Pediatrics, Perinatology, and Child Health
  • Obstetrics and Gynecology


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