Ariella was born prematurely on March 24, at 30 weeks, via emergency C-section weighing one pound, five ounces because she was not thriving inside the womb, according to Walker.

he also has pulmonary vein stenosis, a rare condition in which the blood vessels that bring blood from the lungs to the heart are too narrow or even blocked.

However, Walker said that despite Ariella's medical conditions, she was thriving and hitting her developmental milestones.

"Outside of her sickness, she was pretty much just a normal baby, always laughing and kicking her feet," Walker said.

However, not long after Ariella was admitted to the hospital, she was transferred to Oregon Health & Science University Doernbecher Children's Hospital in Portland, where she is currently in the pediatric intensive care unit.