Related Experiment Video

Updated: Feb 4, 2026

Biaxial Mechanical Characterizations of Atrioventricular Heart Valves
11:00

Biaxial Mechanical Characterizations of Atrioventricular Heart Valves

Published on: April 9, 2019

14.9K

Partition of Common Atrioventricular Valve in a Patient With Dextrocardia and Univentricular Circulation

Xin Tao Ye1, Stephanie L Perrier1, Janet E Lang2

  • 1Department of Cardiac Surgery, Royal Children's Hospital, Melbourne, Australia.

Seminars in Thoracic and Cardiovascular Surgery
|October 2, 2018
PubMed

Insights

Outcomes for children with atrioventricular septal defect (AVSD) and univentricular palliation are concerning. However, successful common atrioventricular valve repair, especially with dextrocardia, offers improved survival in Fontan circulation.

Area of Science:

  • Pediatric Cardiology
  • Congenital Heart Disease
  • Surgical Innovation

Background:

  • Long-term survival for children with atrioventricular septal defect (AVSD) and univentricular palliation remains suboptimal, with high rates of common atrioventricular valve (AVV) insufficiency and heart failure.
  • Current surgical options for common AVV repair in univentricular physiology are associated with significant mortality and reoperation rates, particularly in complex cases like dextrocardia.

Observation:

  • Recent observations suggest that outcomes for AVSD patients reaching Fontan circulation may be better than previously thought if the common AVV remains competent.
  • Achieving a high-quality AVV repair in univentricular hearts is technically challenging, impacting long-term results.

Findings:

  • This report details a successful common AVV repair in a patient with unbalanced AVSD and dextrocardia using a novel polytetrafluoroethylene (Gore-Tex) bridge technique.
  • The patient experienced excellent early outcomes following the innovative surgical repair.

Implications:

  • This case highlights the potential of the polytetrafluoroethylene bridge technique for improving outcomes in complex AVSD cases with dextrocardia.
  • Further research into this technique could offer a more effective solution for common AVV repair in challenging pediatric congenital heart disease scenarios.

More Related Videos

Cox-Maze IV Procedure Concomitant with Valvular Surgery In Situs Inversus Dextrocardia: A Single-Center Experience in China08:42

Cox-Maze IV Procedure Concomitant with Valvular Surgery In Situs Inversus Dextrocardia: A Single-Center Experience in China

Published on: February 11, 2022

4.3K
Detection of a Circulating MicroRNA Custom Panel in Patients with Metastatic Colorectal Cancer08:12

Detection of a Circulating MicroRNA Custom Panel in Patients with Metastatic Colorectal Cancer

Published on: March 14, 2019

6.0K

Related Concept Videos

Common Ion Effect03:24

Common Ion Effect

Compared with pure water, the solubility of an ionic compound is less in aqueous solutions containing a common ion (one also produced by dissolution of the ionic compound). This is an example of a phenomenon known as the common ion effect, which is a consequence of the law of mass action that may be explained using Le Châtelier’s principle. Consider the dissolution of silver iodide:
46.8K
Heart Valves01:16

Heart Valves

The human heart is a complex organ with an intricate system of valves that regulate blood flow. There are two main types of valves: atrioventricular (AV) valves and semilunar valves.
The AV valves prevent the backflow of blood from the ventricles to the atria during ventricular contraction. These valves function with the assistance of the chordae tendineae and papillary muscles. When the ventricles are relaxed, the chordae tendineae are slack, allowing blood to flow from the atria into the...
12.1K
Extraction: Partition and Distribution Coefficients01:14

Extraction: Partition and Distribution Coefficients

The distribution law or Nernst's distribution law is the law that governs the distribution of a solute between two immiscible solvents. This law, also known as the partition law, states that if a solute is added to the mixture of two immiscible solvents at a constant temperature, the solute is distributed between the two solvents in such a way that the ratio of solute concentrations in the solvents remains constant at equilibrium.
For extracting a solute from an aqueous phase into an...
4.7K
Coronary Circulation01:21

Coronary Circulation

The heart, an organ critical to survival, gets nourishment not from the blood it pumps but from a separate circulation system known as coronary circulation. This is the shortest circulation in the body and is responsible for supplying the heart with the nutrients it needs to function effectively.
Coronary circulation begins at the base of the aorta, where two main arteries arise—the left and right coronary arteries. These arteries encircle the heart in the coronary sulcus and supply the...
7.3K
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...
3.0K
Overview of Pulmonary Circulation01:19

Overview of Pulmonary Circulation

The pulmonary circulation is a vital system in our body that acts as a bridge between the respiratory and cardiovascular systems. It serves as a transport network for deoxygenated blood from the heart to the lungs and then returns oxygen-rich blood back to the heart.
The process begins with the right ventricle of the heart pumping deoxygenated blood into the pulmonary trunk. This large vessel extends about 5 centimeters before splitting into the left and right pulmonary arteries. These arteries...
3.2K