The girl's name is Sarango, and she was born with a congenital heart defect.
Her parents were left without options until they heard about the organization's heart gift.
The non-profit provides heart surgeries to children from around the world where access to care is either scarce or non-existent.
After a couple of tries, the family received the green light --- and on June 28, Sarango underwent the life-saving heart procedure.
Her mother is really happy that her daughter is healthy and recovering well.
During her recovery, Sarango stayed with a host family on the south side of Houston.
Sarango is expected to return to Mongolia on Sunday.
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