I've been reading Rebel Heart's posts on another BBS and he seems like a good guy, a family man with good values. He's also quite seasoned and smart about boats, physically fit and resourceful. I'm pretty sure he's capable of dealing with whatever can be dealt with. Unfortunately when it comes to a health there are some things none of us can anticipate or control.
My sincere best wishes to them and I hope the baby has a full recovery.