Cardiology Questions? Ask a Cardiologist for Answers ASAP.
Good afternoon, I am Dr Ruff, thank you for contacting us today
I am very sorry to hear of what has happened to your uncle and what you had to witness.
What your uncle experienced would completely depend on the problem that killed him, whether a heart attack, a clot, a stroke, they can all cause a long list of symptoms.
Often in the circumstances you are describing, if your uncle hadn't reached out to ask for help from a doctor or ambulance, then I suspect what has happened was quick.
I am sorry to hear, it certainly sounds like it was sudden.
I can understand, the success of CPR is very low, certainly if there was something underlying.
I hope that you feel better.