FDA Approves Edwards' Autus Size-Adjustable Heart Valve for Pediatric Patients

FDA Approval for Pediatric Heart Valve

The US Food and Drug Administration (FDA) has approved the Autus Size-Adjustable Valve, an artificial pulmonary valve developed by Edwards. This valve is designed for implantation in pediatric patients and is the first of its kind that can be expanded after surgery to accommodate a child's growth.

Addressing Congenital Heart Disease

Congenital heart disease affects approximately 400,000 children annually in the US, with about 30 percent involving heart valves. Pulmonary valve abnormalities like stenosis and atresia affect around 4,200 babies in the US each year. Traditionally, artificial pulmonary valves required multiple surgeries to replace them with larger sizes as the child grew.

Post-Surgical Expansion Capability

The Autus valve can be implanted at a size as small as 13 millimeters in toddlers and preschool-aged children. Its key feature is the ability to be expanded inside the body using a balloon catheter, allowing it to grow with the child up to a maximum of 22 millimeters, comparable to adult-sized artificial valves. This capability significantly reduces the need for repeated surgical interventions.

Innovative Material Composition

In addition to its adjustable size, the Autus valve is the first to use polymeric material for its flaps. Conventional implants often use synthetic flaps made from animal materials, which tend to harden and degrade faster in children, necessitating more surgeries. Initial follow-up data after one year suggests the Autus valve may offer improved durability compared to other models.