![]() ![]() However, less than 1% of the population have attended an emergency life support course. When someone has a heart attack, a bystander – often a relative with no medical expertise – is usually the first on the scene. Heart failure can happen suddenly (acute heart failure) or gradually, over time (chronic heart failure). The heart becomes too weak to pump blood around the body, which can cause fluid to build up in the lungs, making it increasingly difficult to breathe. Heart failure can also happen in people with CHD. This is known as a silent myocardial infarction and is more common in older people and people with diabetes. ![]() Unlike angina, the symptoms of a heart attack are not usually relieved using a nitrate tablet or spray.Ī heart attack can sometimes happen without any symptoms. If heart pains last longer than 15 minutes, it may be the start of a heart attack. For example, they may include a feeling of heaviness in your chest, a stomach ache or heartburn.Ī heart attack can happen at any time, including while you're resting. The symptoms of a heart attack can also be similar to indigestion.
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