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This 3-year-old has ‘a sparkle’ in her heart: The world’s smallest mechanical heart valve

A young patient with atrioventricular canal defect and other heart problems is now thriving with a “sparkle” in her heart. That sparkle is the world’s smallest mechanical heart valve, placed a few years ago by STS member Jonathan Chen, MD, of Seattle Children’s Hospital, as part of a clinical trial. The tiny heart valve was approved by the FDA in March 2018. Read the story.