Heart attacks are caused by Coronary Heart Disease, which is basically damage to the heart. Not a straight forward complaint by any means, but by far amongst the most common causes of death.
Fact: A heart attack won’t kill you.
Why your charcter dies
The heart pumps oxygenated blood to the other vital organs of the body which need oxygrn to function. If the heart stops beating then the the other organs fail. Your character will go into a terminal shutdown.
Coronary Heart Disease
In basic terms Coronary Heart Disease caused by fatty deposits blocking the arteries. In other words it’s high cholesterol, the scourge of the developed world, and is linked to Diabetes.
Your character is likely to be a diabetic, overweight, middle aged smoker, who loves a fry up, burger and chips, hates exercise and has high blood pressure.
Before he gets anywhere near dying your character is going to suffer from pains in his chest (angina), not to be confused with indigestion (dyspepsia), heartburn or problematic gall stones, though he is likely to. Both gall stones and indigestion or heartburn can cause pain, but the pain originates from the stomach not the heart (admittedly the stomach is not a million miles from the heart and pain has a habit of radiating). Heartburn is caused by stomach acid going where it shouldn’t and it burns rather than squeezing or pressing.
A person with gallstones may have stomach pain, but it will be one that won’t go away and will be accompanied by other symptoms. The poor guy is likely to be feverish, itchy, jaundiced and sitting on the toilet shivering with his heart going ten to the dozen and unaware how he got there. But he won’t be in imminent danger of dying.
Angina on the other hand can’t be directly blamed on the burger and chips your character had for lunch. An angina attack is caused by the slowing of blood to the heart through those blocked arteries. The more serious heart attack is a slowing or stopping of the blood to the heart. One can easily be confused with the other.
“Your character could mis-diagnose a heart attack as the effects of a dodgy curry”
The symptoms for both angina and a heart attack are:
Chest pain (squeezing or pressing)
Chest pain with pain in the jaw, shoulder, neck or arm
Nausea Weakness or fatique (Asthenia)
Shortness of breath(Dyspnea)
The time gap between an angina attack and heart attack can be hours, weeks or months. All those seemingly innocuous symptoms can be a ticking time bomb, and just to confuse matters a heart attack can be painless. Your character could self-diagnose a heart attack as the effects of a dodgy curry.
A heart attack won’t kill straight away, more commonly it damages the heart or causes part of it to die and leaves your poor character defenceless against imminent heart failure (when the heart stops pumping).
Not the same as a heart attack, a Cardiac Arrest is an electrical malfunction that causes the heart to stop beating (heart failure) The vital organs are starved of oxygen and death can be within minutes. The cause of a Cardiac Arrest can be as a result of a trauma (electric shock or drug overdose), stroke or a heart condition and can happen in the middle of a heart attack. In many cases there are no warning symptoms, the effects are sudden and fatal.
The symptoms, should there be time to note them are :-