Single Ventricle Defectsenparents, a heart has two working ventricles (pumping chambers). Having a single ventricle means that only one of the two ventricles works well enough to pump blood.hypoplastic left heart syndrome, HLHS, heart defect, atrial septal defect, ASD, patent ductus arteriosus, PDA, left side of the heart, heart conditions, cardiology, cardiologist, heart transplants, hypoplastic, left heart, ductus arteriosus, foramen ovale, ventricles, valves, heart surgery, mitral valve , aortic valve, prostaglandin, norwood, Norwood procedure, Glenn, Glenn shunt operation, Fontan, Fontan operation, hypoplastic left heart syndrome surgery, single ventricle, single ventricle defect, hybrid procedure08/20/201809/19/201809/19/2018Kate M. Cronan, MD08/07/2018a219f33f-7c17-4185-bee0-94605e2c973b<h3>What Is a Single Ventricle Defect?</h3> <p>Usually, a <a href="">heart</a> has two working ventricles (pumping chambers). Having a single ventricle defect means that only one ventricle works well enough to pump blood.</p> <h3>What Are the Signs &amp; Symptoms of a Single Ventricle Defect?</h3> <p>A newborn with a single ventricle defect can have:</p> <ul> <li>trouble breathing</li> <li>trouble feeding</li> <li>blue or grayish color of the skin and nails</li> <li>lethargy (very little activity)</li> <li>weak pulses in the arms and legs</li> <li>few wet diapers</li> </ul> <p>These signs can start a few hours to a day or so after the birth. Without treatment, the baby's <a href="">blood pressure</a> will fall too low to meet the body's needs.</p> <h3>What Are the Types of Single Ventricle Defects?</h3> <p>Single ventricle defects include:</p> <ul> <li><a href="">Ebstein Anomaly</a></li> <li><a href="">Hypoplastic Left Heart Syndrome (HLHS)</a></li> <li><a href="">Tricuspid Atresia</a></li> <li><a href="">Double Outlet Right Ventricle (DORV)</a></li> <li><a href="">Pulmonary Atresia</a></li> <li><a href="">Atrioventricular Canal Defect</a></li> </ul> <h3>What Causes a Single Ventricle Defect?</h3> <p>Most cases of single ventricle defects happen in the developing heart during early pregnancy. Some might be due to a combination of <a href="">genes</a> and things in the baby's and mother's environment during this early stage.</p> <h3>How Is a Single Ventricle Defect Diagnosed?</h3> <p>Single ventricle defects are diagnosed either during pregnancy by a <a href="">fetal echocardiogram</a> ("echo") or shortly after birth with an <a href="">echocardiogram</a>. An echo is a completely safe and painless test that uses ultrasound (sound waves) to build a series of pictures of the heart.</p> <p>Babies born with a single ventricle defect that wasn't found before birth may become very ill. The exact symptoms will depend on the defect causing the single ventricle.</p> <h3>How Is a Single Ventricle Defect Treated?</h3> <p>Single ventricle defects are treated by two or three surgeries. The first surgery varies, depending on the diagnosis. But the second and third surgeries are usually the same no matter what kind of heart defect a child has.</p> <p>The goal of the surgeries is to rebuild the heart and make sure that it:</p> <ul> <li>pumps blood out to the body</li> <li>returns the blood to the lungs (without being pumped by the heart as it would be in a child with two normal ventricles)</li> <li>returns the blood to the heart</li> </ul> <p>Surgeries can include:</p> <ul> <li><a href="">Norwood Procedure</a></li> <li><a href="">Glenn Procedure</a></li> <li><a href="">Fontan Procedure</a></li> </ul> <h3>What Else Should I Know?</h3> <p>Other procedures may be needed, depending on a child's diagnosis. But by the time children have the Fontan procedure, they will have similar medical care, challenges, and potential complications.</p> <p>Most children who have had a single ventricle heart repaired are on medicines for the rest of their lives. Some who had the Fontan operation can exercise normally, but many will have limits on how active they can be.</p>
Double Outlet Right Ventricle (DORV)Double outlet right ventricle (DORV) is a heart defect where the aorta connects to the heart in the wrong place.
Ebstein AnomalyEbstein anomaly is a rare heart defect that affects the tricuspid valve. It can cause problems that range from very mild to very serious.
Heart and Circulatory SystemThe heart and circulatory system are our body's lifeline, delivering blood to the body's tissues. Brush up on your ticker with this body basics article.
Hypoplastic Left Heart Syndrome (HLHS)Hypoplastic left heart syndrome (HLHS) is a birth defect of a baby’s heart. The left side of the heart doesn’t grow as it should, making it smaller and weaker than normal.
Hypoplastic Left Heart Syndrome Surgery: The Fontan ProcedureThe Fontan procedure is open-heart surgery done as the third of three surgeries to treat hypoplastic left heart syndrome (HLHS).
Hypoplastic Left Heart Syndrome Surgery: The Glenn ProcedureThe Glenn procedure is open-heart surgery done as the second of three surgeries to treat hypoplastic left heart syndrome (HLHS).
Hypoplastic Left Heart Syndrome Surgery: The Norwood ProcedureThe Norwood procedure is open-heart surgery done as the first of three surgeries to treat hypoplastic left heart syndrome (HLHS).
Tricuspid AtresiaTricuspid atresia is a congenital heart defect. A baby born with tricuspid atresia often has serious symptoms soon after birth because blood flow to the lungs is much less than normal.
Words to Know (Heart Glossary)A guide to medical terms about the heart and circulatory system. In an easy A-Z format, find definitions on heart defects, heart conditions, treatments, and more.
kh:age-NAkh:clinicalDesignation-cardiothoracicSurgerykh:genre-articlekh:primaryClinicalDesignation-cardiologyHeart & Blood Vessels Conditions