Congenital portosystemic shunts and AMPLATZER vascular plug occlusion in newborns

William N Evans1, Alvaro Galindo, Ruben J Acherman

  • 1Children's Heart Center-Nevada, Las Vegas, NV 89109, USA. WNevans50@aol.com

Pediatric Cardiology
|July 25, 2009
PubMed

Insights

Congenital portosystemic shunts (CPSs) present diverse symptoms and detection timelines, from prenatal to later in life. Early diagnosis of these vascular anomalies is crucial for monitoring and timely interventional treatment when necessary.

Area of Science:

  • Vascular Surgery
  • Pediatric Gastroenterology
  • Congenital Malformations

Background:

  • Congenital portosystemic shunts (CPSs) are abnormal vascular connections between the portal venous system and systemic circulation.
  • These anomalies can lead to a wide spectrum of clinical presentations and potential complications.

Observation:

  • CPSs exhibit variable clinical courses, including prenatal detection, infantile presentation, or later diagnosis.
  • Manifestations range from asymptomatic cases to acute symptoms or chronic disease development.

Findings:

  • The clinical course of congenital portosystemic shunts can involve spontaneous involution, acute symptomatic episodes, or chronic, unrecognized disease.
  • Early identification of CPSs facilitates essential monitoring and timely therapeutic interventions.

Implications:

  • Prompt diagnosis of CPSs is vital for effective patient management and preventing long-term sequelae.
  • Interventional catheterization and embolization offer a treatment option for symptomatic patients at any age.

Related Concept Videos

Fetal Circulation01:14

Fetal Circulation

Fetal circulation is a unique system that facilitates the exchange of gases, nutrients, and waste products between the developing fetus and the mother. This intricate process takes place through a special organ called the placenta.
Two umbilical arteries transport blood from the fetus to the placenta. At the placenta, the blood absorbs oxygen and nutrients while simultaneously eliminating waste products. This oxygen-enriched and nutrient-rich blood then returns to the fetus through one...
Portal Hypertension01:22

Portal Hypertension

Portal hypertension is an increase in blood pressure within the portal venous system. Normally, this pressure is less than 5 mmHg. It is considered clinically significant when it rises above 10 mmHg. At this threshold, complications from altered blood flow and venous congestion emerge.EtiologyPortal hypertension arises from conditions that impede blood flow through the liver. The most common cause is cirrhosis, in which chronic liver injury leads to fibrotic scarring. This fibrosis narrows or...
Development of Blood Vessels01:07

Development of Blood Vessels

The development of the vascular system in a fetus is a complex and intricate process that begins as early as 15 to 16 days post-conception. This process starts outside the embryo, specifically in the mesoderm of the yolk sac, chorion, and connecting stalk. Approximately two days later, the formation of blood vessels occurs within the embryo itself.
The initial formation of this system is facilitated by the small amount of yolk present in the ovum and yolk sac. Blood vessels originate from...
Mechanism of Angiogenesis01:10

Mechanism of Angiogenesis

Blood vessel formation starts early during embryonic development, around day 7. In the extraembryonic yolk sac, mesodermal precursor cells called hemangioblast proliferate and differentiate into angioblast. Angioblasts express vascular endothelial growth factor receptor 2 or VEGFR2, which binds VEGF-A, a proangiogenic factor, guiding blood vessel formation. VEGF signaling promotes angioblasts to form a blood island in the developing embryo. Angioblasts further differentiate, giving rise to...