The first clue came with a murmur.
At a mere week old, Joe LaRocca was diagnosed with an extraordinarily rare heart defect. Both ventricles were reversed.
Fortunately, with this particular defect, the arteries are reversed too, essentially “correcting” the abnormality. That’s where it gets its name — congenitally corrected transposition of the great arteries (CCTGA).
In a normal heart, the demanding duty of pumping oxygenated blood into the body is handled by the left ventricle, and the right ventricle pumps blood a short distance into the lungs. But Joe’s heart was far from normal.
“The right ventricle is not meant to do the harder work,” says Dr. Elizabeth Blume, Heart Failure and Heart Transplant Program medical director at Boston Children’s Hospital. “Since the ventricles are reversed in patients with CCTGA, over time, this muscle tires out.”