"Mighty Girl": Tiny Michigan baby undergoes rare heart surgery.
GRAND RAPIDS, Mich. -- A 2-pound Michigan newborn dubbed "Mighty Girl" by her parents is one of the smallest babies in the world to undergo a heart procedure to open up a blocked artery caused by a congenital defect. A week later, Alexandra Mae Van Kirk is showing signs that her heart is working as it should, and she's growing. "She's doing fantastic," her father, Matt Van Kirk, told The Grand Rapids Press for a story published Friday. Dr. Joseph Vettukattil, who performed the pulmonary balloon valvuloplasty at DeVos Children's Hospital in Grand Rapids, has done 300 such procedures over 20 years, but the smallest patient on which he performed it was 4 pounds. "It was very tricky," said Vettukattil, who added he has heard of only one or two other babies smaller than Alexandra who have undergone the procedure. When Heidi Van Kirk was 22 weeks pregnant, an ultrasound showed Alexandra was small for her stage of gestation. In foll...