Hi. I am very sorry for your loss.Some cardiac arrest cases do happen in healthier individuals and can be fatal. Not all cardiac arrest cases are treatable even in an emergency.It's normal to feel lost right now, but you will get through this. Grief counseling may be helpful in your situation for closure.
My father was in his late 40s and went on a walk. He was 160 lbs and 54 and vegetarian, didnt drink or smoke, and exercised pretty regularly. He called my mom and told her he couldnt breathe. She drove to him and got there within two minutes (he wasnt too far from our house). When she got there he was unresponsive and another passerby had started cpr and called 911. He revived before the paramedics got there and was able to talk to my mom. He even called her on the way to the hospital in the ambulance and told her he got there. As soon as he got there he lost his pulse. They did cpr on him and tried to revive him for an hour before they called his death. Im very lost. How could he have been revived on the sidewalk but not in the hospital. I thought cardiac events were treatable if they were caught within the first few minutes. He had calcium deposits on his heart and had tested positive for covid two weeks prior. Any insight would be greatly appreciated as Im looking for some understanding and closure.Edit: thank you all for your comments. Ive read all of them and really appreciate the insights you all have given into what could have happened. Im talking to a doctor about getting a cardiology consult for my siblings and I to make sure there arent genetic/other issues. Im also making sure my family will get the updated covid booster shots. My dad was pretty religious and we therefore cremated him as soon as possible, because thats what he would have wanted, and tbh I value fulfilling his last wishes more than an autopsy at this time. Ive also gotten my mom and siblings into grief counseling and am looking into options myself. Thank you again for all your kind words.