Nikki, I remeber those days all to well. It's been just over 5 years since I had a mechanical valve put inside my heart. ICU and the vent thing is not enjoyable and I too, had some problems. Tell your bro to stick with it and dont let it get to him, it just takes a little time and effort. It may seem difficult now, but he will reap the rewards a thousand times over. Had I not had mine when I did, I was 32, I would not have made it to see 33, buy a boat, get out ont eh lake and type this.
God's speed for his safe and uneventfull recovery.
With all my prayers,
Jim