Hypoplastic Left Heart Syndrome (HLHS)

Hypoplastic left heart syndrome (HLHS) is a heart defect where the left side of the heart doesn’t develop properly. This means it’s smaller and weaker, so the right side of the heart must work extra hard to pump blood to the rest of the body. 

At Nemours Children's, we are experts at detecting heart problems early, including babies still in the womb — giving children the best chance. If your child is diagnosed with hypoplastic left heart syndrome, you can trust the pediatric heart specialists in our Nemours Children's Cardiac Center.

Our board-certified, fellowship-trained pediatric cardiologists and cardiothoracic surgeons (specialists in surgical procedures of the chest, including the heart and lungs) are here to answer your questions, address your concerns, and offer treatment options, including hypoplastic left heart syndrome surgery. Our cardiac teams offer the latest in research-backed care, delivered with compassion.

In addition, we offer the Nemours app , which includes special features specifically for patients with HLHS and allows your child's cardiac care team to proactively monitor your child and potentially identify any emerging problems as quickly as possible. 

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Hypoplastic Left Heart Syndrome (HLHS)

Hypoplastic left heart syndrome (HLHS) is a heart defect where the left side of the heart doesn’t develop properly. This means it’s smaller and weaker, so the right side of the heart must work extra hard to pump blood to the rest of the body. 

At Nemours Children's, we are experts at detecting heart problems early, including babies still in the womb — giving children the best chance. If your child is diagnosed with hypoplastic left heart syndrome, you can trust the pediatric heart specialists in our Nemours Children's Cardiac Center.

Our board-certified, fellowship-trained pediatric cardiologists and cardiothoracic surgeons (specialists in surgical procedures of the chest, including the heart and lungs) are here to answer your questions, address your concerns, and offer treatment options, including hypoplastic left heart syndrome surgery. Our cardiac teams offer the latest in research-backed care, delivered with compassion.

In addition, we offer the Nemours app , which includes special features specifically for patients with HLHS and allows your child's cardiac care team to proactively monitor your child and potentially identify any emerging problems as quickly as possible. 

Contact Us
Hypoplastic Left Heart Syndrome (HLHS)

Why Choose Us

Our Nemours Cardiac Center team has the experience to provide accurate, efficient diagnosis and treatment of hypoplastic left heart in children. World-class heart care requires the compassion to understand your family's journey, and the expertise to heal even the most complex conditions.

Our cardiac surgeons treat a vast array of heart defects in infants, children and teens, using the most innovative, up-to-date approaches. Our specialty is the early detection and repair of heart problems, so your child will have the best possible chance for a healthy future. 

Regional Care Highlights

Delaware Valley Highlights

Delaware/Greater Philadelphia

We offer care for newborns and children with hypoplastic left heart syndrome at Nemours Children’s Hospital, Delaware (Wilmington, Del.) and select Nemours locations.  

The Nemours Cardiac Center at Nemours Children’s Hospital, Delaware offers a complete range of pediatric cardiology and heart surgery services. 

Our Palliative and Supportive Care Program located at Nemours Children’s Hospital, Delaware in Delaware provides compassionate care for families and children coping with life-threatening or life-limiting conditions. 

Florida Highlights

Central Florida

We offer care for newborns and children with hypoplastic left heart syndrome at Nemours Children’s Hospital, Florida, in Orlando, and select Nemours specialty care locations.  

Our renowned pediatric cardiology and cardiothoracic surgery team at the Nemours Cardiac Center in Central Florida offers inpatient, critical and surgical care at Nemours Children’s Hospital in Orlando — including dedicated cardiac anesthesiologists and state-of-the-art cardiac intensive care unit (CICU). 

They also have a dedicated program that offers skilled management of single-ventricle defects like hypoplastic left heart syndrome (HLHS). And since early detection means faster treatment, our Nemours Center for Fetal Care is available at multiple locations throughout Central Florida. 

Northwest Florida

We offer care for newborns and children with hypoplastic left heart syndrome at Nemours Children’s Health, Pensacola and our hospital affiliate, West Florida Healthcare, with outpatient and follow-up appointments also available at select Nemours locations.

Our Nemours Cardiac Center in Pensacola is home to one of the few accredited pediatric transthoracic and fetal echocardiography labs in Florida and, if needed, can facilitate the transfer of extremely ill children between our Nemours Cardiac Center locations (e.g., to Nemours Children’s Hospital, Florida).  

Find Care at Nemours

We have many pediatric specialists and locations — find the care closest to you: