Cited by 296Congenital Heart Disease StudiesCardiovascular Conditions and TreatmentsFetal and Pediatric Neurological Disorders

Impact of congenital heart disease on cerebrovascular blood flow dynamics in the fetus

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Kaltman, J. R., Di, H., Tian, Z., Rychik, J.·2005·Ultrasound in Obstetrics & Gynecology

Abstract

Objectives: Neurological abnormalities are present in some children after repair of congenital heart disease (CHD). Recently, structural brain abnormalities have been identified in infants prior to cardiac surgery. By altering in utero blood flow patterns, the type of CHD may impact upon cerebrovascular flow dynamics prior to birth. We sought to determine whether left‐ and right‐sided obstructive congenital heart lesions modify cerebrovascular flow dynamics in the fetus. Methods: Pulsed Doppler was used to measure blood flow velocities in the umbilical (UA) and middle cerebral (MCA) arteries in 172 fetuses from 20 to 39 weeks' gestational age referred for fetal echocardiography. Pulsatility index (PI), an indicator of downstream vascular resistance, was determined by (peak systolic velocity—end‐diastolic velocity)/mean velocity. Results: Fetuses with hypoplastic left heart syndrome (HLHS; n = 28) had decreased MCA‐PI ( P = 0.009) compared to normal fetuses ( n = 114). Fetuses with right‐sided obstructive lesions (RSOL; n = 17) had increased MCA‐PI ( P = 0.001) when compared to fetuses with HLHS. The UA‐PI was elevated in fetuses with RSOLs ( P = 0.045). Conclusions: Cerebrovascular resistance is lower than normal in fetuses with HLHS, a condition in which cerebral perfusion occurs retrograde via the ductus arteriosus. Fetuses with RSOL had significantly higher cerebrovascular resistance compared to fetuses with HLHS. The type of CHD impacts upon fetal cerebrovascular blood flow distribution and this may have implications for later development of neurological sequelae. Copyright © 2004 ISUOG. Published by John Wiley & Sons, Ltd.

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Authors
Kaltman, J. R., Di, H., Tian, Z., & Rychik, J.
Affiliations
Children's Hospital of Philadelphia (US)
Corresponding author
Rychik, J.
Venue
Ultrasound in Obstetrics & Gynecology
Publisher
Wiley
Published
2004-12-08
Volume
25
Issue
1
Pages
32-36
ISSN
  • 0960-7692 (ISSN-L)
  • 1469-0705
OpenAlex
W2082589628
Cited by
296
References
26
Citations by year
2026: 11 · 2025: 10 · 2024: 12 · 2023: 11 · 2022: 21 · 2021: 16 · 2020: 15 · 2019: 15 · 2018: 15 · 2017: 16 · 2016: 18 · 2015: 10 · 2014: 12 · 2013: 17 · 2012: 15
FWCI
6.23
Type
journal article
Language
en
Open access
Locations
  • Ultrasound in Obstetrics and Gynecology (publishedVersion)
  • PubMed (publishedVersion)
Funders
  • National Institutes of Health
  • U.S. Public Health Service (T32 07915)
Topics
  • Health Sciences › Medicine › Epidemiology › Congenital Heart Disease Studies
  • Health Sciences › Medicine › Radiology, Nuclear Medicine and Imaging › Cardiovascular Conditions and Treatments
  • Health Sciences › Medicine › Pediatrics, Perinatology and Child Health › Fetal and Pediatric Neurological Disorders
Keywords
congenital heart disease, hypoplastic left heart syndrome, middle cerebral artery pulsatility index, umbilical artery pulsatility index, cerebrovascular resistance, ductus arteriosus, fetal neurological development, fetal echocardiography
MeSH terms
Blood Flow Velocity, Cerebrovascular Circulation, Cross-Sectional Studies, Fetal Diseases, Gestational Age, Heart Defects, Congenital, Humans, Pulsatile Flow, Umbilical Arteries, Vascular Resistance, Ultrasonography, Doppler, Pulsed, Middle Cerebral Artery

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