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Aneurysms and Carotid Artery Block in Newborns

This study has been completed.
Information provided by:
National Institutes of Health Clinical Center (CC) Identifier:
First received: March 26, 2008
Last updated: January 24, 2017
Last verified: April 16, 2010

This study will determine the risk of brain aneurysm (abnormal outpouching of a brain artery) in young adults who had their carotid artery tied off as an infant as part of the extracorporeal membrane oxygenation (ECMO) procedure. This procedure is sometimes performed on newborns with lung problems so that they can have oxygen brought to their blood outside the body. ECMO operates similar to a heart-lung machine. Blood drained from the veins has the carbon dioxide removed and oxygen added. The oxygenated blood is then returned to the body through the arteries.

People 18 to 25 years of age who underwent ECMO as an infant at the Children's National Medical Center in Washington, D.C., may be eligible for this study.

Participants undergo the following procedures:

  • Medical history and physical and neurological examinations.
  • Magnetic resonance imaging (MRI) of the head and neck. MRI uses a strong magnetic field and radio waves to obtain images of body organs and tissues. The subject lies in the scanner (a metal cylinder surrounded by a magnetic field) for about 90 minutes, lying still for up to 15 minutes at a time. During part of the procedure, a contrast dye is injected into a vein through a catheter (thin plastic tube) to enhance the images.

Cerebrovascular Disorder

Study Type: Observational
Study Design: Time Perspective: Retrospective
Official Title: Assessment of Cerebral Circulation and Perfusion in Adults After Neonatal Carotid Occlusion

Resource links provided by NLM:

Further study details as provided by National Institutes of Health Clinical Center (CC):

Enrollment: 6
Study Start Date: March 17, 2008
Estimated Study Completion Date: April 16, 2010
Detailed Description:


To assess whether the hemodynamic stress of long-term common carotid artery occlusion can lead to cerebral aneurysm formation in young adults.

Study population:

100 adults 18-25 years of age who underwent common carotid artery (CCA) occlusion as a neonate as part of the extracorporeal membrane oxygenation (ECMO) procedure performed in the setting of pulmonary insufficiency.


Patients who underwent CCA occlusion as a neonate for ECMO at Children's National Medical Center will be identified and contacted. The study will be explained and informed consent will be obtained. Subjects will undergo outpatient evaluation to include history and physical, magnetic resonance angiography and magnetic resonance imaging of the head.

Outcome measures:

  • Cerebrovascular anatomic anomalies such as cerebral aneurysms and persistent fetal circulation pathways, etc.
  • Cerebral perfusion asymmetry on MRI.
  • Cerebral parenchymal abnormalities such as stroke.

Ages Eligible for Study:   18 Years to 25 Years   (Adult)
Sexes Eligible for Study:   All
Accepts Healthy Volunteers:   No

Subjects must be 18-25 years of age.

Subjects had VA ECMO as a neonate at Children's National Medical Center.

Subjects must be in good health.

Subjects must provide informed, written consent for participation in this study.


Subjects with a history or evidence of mental retardation precluding a written consent unless this consent could be obtained from a legal guardian.

Subjects with a history of reaction to MR contrast media or who are unable to have an MRI.

Subjects who underwent carotid artery reconstruction after neonatal ECMO.

Females who are pregnant or nursing.

  Contacts and Locations
Choosing to participate in a study is an important personal decision. Talk with your doctor and family members or friends about deciding to join a study. To learn more about this study, you or your doctor may contact the study research staff using the Contacts provided below. For general information, see Learn About Clinical Studies.

Please refer to this study by its identifier: NCT00646672

United States, Maryland
National Institutes of Health Clinical Center, 9000 Rockville Pike
Bethesda, Maryland, United States, 20892
Sponsors and Collaborators
National Institute of Neurological Disorders and Stroke (NINDS)
  More Information

Publications: Identifier: NCT00646672     History of Changes
Other Study ID Numbers: 080095
Study First Received: March 26, 2008
Last Updated: January 24, 2017

Keywords provided by National Institutes of Health Clinical Center (CC):
Cerebral Perfusion
Carotid Artery
Cerebral Circulation
Common Carotid Artery Occlusion

Additional relevant MeSH terms:
Cerebrovascular Disorders
Brain Diseases
Central Nervous System Diseases
Nervous System Diseases
Vascular Diseases
Cardiovascular Diseases processed this record on April 26, 2017