If you have some hand/arm deformation and heart defect (ASD/VSD). Then likely you do but you need to get a genetic test that test the TBX5 gene for mutations.
I was born with HOS in 1987 - however my hand and heart defects were thought to be 2 separate issues. I had multiple holes in my heart and had open heart surgery at 6months old. I was unwell as a baby, but got better with age. My operation was a succ...