Help For Gunnar David Tyson

My grandson, Gunnar David Tyson was born with a very rare congenital heart defect known as congenitally corrected transposition of the great arteries. He is undergoing procedures, surgery next week, and a major, open heart surgery at 18 months. He is being treated at Children's Hospital in the twin cities. The financial strain is difficult for his parents. Any help would be much appreciated. Thank you and God Bless!