Autus Size-Adjustable Valve
Edwards Lifesciences · Pediatrics · First expandable pediatric heart valve
- Type
- Implant
- FDA route
- Premarket approval (PMA)
Children who need a pulmonary valve replacement now have a surgical valve that can be enlarged by balloon catheter as they grow, which the FDA says may reduce the need for repeat open-heart surgeries. Data on expansion are limited and longer-term studies are under way.
- What it is
- A surgically implanted pulmonary heart valve with polymeric leaflets instead of animal-derived tissue. It can be implanted as small as approximately 13 millimeters in diameter and later widened with a balloon catheter, up to 22 millimeters.
- Indicated for
- Pediatric patients with congenital pulmonary valve disease who need pulmonary valve replacement.
- What changes
- The FDA says traditional valves use animal-derived tissue, which tends to harden and break down faster in children and often requires earlier repeat surgery. The release does not describe the design of the clinical study.
- Evidence
- Design not reportedStudy not named in the release · n=62At the six-month follow-up, the first 60 patients demonstrated acceptable hemodynamic performance with no more than mild leakage back through the valve. All patients had a successful procedure, with no deaths, blood clots requiring additional treatment, strokes or other clot-related complications.The source does not describe a clinical study or its design. Common for cleared devices, which can rest on equivalence to a predicate.
- Watch for
- Three patients had a fracture in the valve frame and two had reduced movement of one valve leaflet, none with symptoms. Valve performance began deteriorating in two patients who started to outgrow it; both were expanded successfully, but the FDA says the experience is limited and longer-term studies are being conducted.
- FDA decision
- 510(k)Cleared
- De NovoGranted
- PMAApproved