While still in the womb, Natalie's heart was already clogged with calcium. Her parents knew it didn't look good. They sought help from national experts in fetal cardiac conditions at The Children's Hospital of Philadelphia.

Thanks to a mechanical sidekick, Allison Carcella pioneered a safer path to a heart transplant at Children's Hospital of Philadelphia.

Chris was diagnosed with a dilated cardiomyopathy when he was 15 years old and underwent a successful heart transplant at CHOP.

Madeline, a healthy girl at 9, had a heart operation at CHOP at 5 days old. Her parents and grandfather donate to CHOP to fund research for cardiac care.

William was born with tetralogy of Fallot, a heart condition that requires open heart surgery shortly after birth, and had surgery at CHOP.

Albe was rushed to the Emergency Department at Children's Hospital of Philadelphia for sudden cardiac arrest. The Critical Care Medicine team was ready to save his life.

Matthew was diagnosed with several atrial septal defects during the first weeks of life and received expert care at CHOP's Cardiac Center, including open heart surgery.

Born with a heart defect called tetralogy of Fallot, Jack was just 9 days old when his family learned he also had chromosome 22q11.2 deletion, a rare chromosomal difference.

Zoey was diagnosed with coarctation of the aorta and ventricular septal defects when she was a few days old. Open heart surgery at CHOP's Cardiac Center saved her life.

Matthew was diagnosed with aortic and pulmonary stenosis when he was 3 months old and underwent heart bypass surgery at CHOP's Cardiac Center.