Relating your rotator cuff tear to your car accident can be extremely difficult. Because the majority of tears are caused by wear and tear, it's not uncommon for an insurance company to deny a person's claim and say that the car accident wasn't the cause.
Heart attacks. If your arteries become completely blocked, it can cause a heart attack (myocardial infarction). Heart attacks can permanently damage the heart muscle and, if not treated straight away, can be fatal. Dial 999 for immediate medical assistence if you think you're having a heart attack.
If a main coronary artery is blocked, a large part of the heart muscle is affected. If a smaller branch artery is blocked, a smaller amount of heart muscle is affected. After a heart attack, if part of the heart muscle has died, it is replaced by scar tissue over the following few weeks.