Vasovagal syncope
Vasovagal syncope is one of the most common causes of heart failure Examples of vasovagal syncope are heart palpitations at the sight of blood or during emotional stress
During vasovagal syncope, the heart rate slows down and blood pressure drops This reduces the blood supply to the brain, causing a brief loss of consciousness
Vasovagal syncope is harmless and does not require treatment, although you can be injured during a cardiac arrest episode. Your doctor may also order additional tests to rule out other more serious causes of heart failure, such as heart disease.
Vasovacal syncope occurs when the part of the brain that controls heart rate and blood pressure malfunctions in response to a trigger, such as the sight of blood. As a result, your heart rate slows down and the blood vessels in your legs dilate Blood begins to accumulate in the legs, which leads to a decrease in pressure Low blood pressure and reduced heart rate lead to heart failure
Common triggers of vasovagal syncope are:
- standing for a long time
- high temperature
- seeing blood
- taking blood
- fear of harming the body
- strain, for example during defecation
Due to vasovagal syncope, you may have the following signs and symptoms before your heart stops:
- pale skin
- feeling like your heart is racing
- loss of peripheral vision
- nausea
- feeling hot
When to see a doctor
A heart attack can indicate a more serious condition, such as heart or brain disease, so it's a good idea to see a doctor after an episode of heart attack, especially if you've never had one before.
