Fainting, also known as syncope, is a temporary loss of consciousness caused by insufficient blood flow to the brain. According to Dr. Elijah Behr, a cardiologist at Mayo Clinic Healthcare in London, there are different types of fainting, including vasovagal syncope and cardiac syncope.
Vasovagal syncope is the most common type, which occurs when emotional distress or low blood pressure causes the heart to slow down, leading to a drop in blood pressure. This type of fainting usually resolves on its own, but it can be dangerous if someone faints in an awkward position.
Cardiac syncope, on the other hand, is caused by underlying heart disease, such as a heart rhythm abnormality or arrhythmia. This type of fainting is more abrupt and can be a warning sign of a serious condition.
Before experiencing a faint, some people may experience warning signs such as lightheadedness, nausea, or vision loss. If you feel like a faint is coming on, positioning your head lower than your heart, between the knees, can help alleviate symptoms.
If someone faints, it’s essential to check their airway and pulse. If they’re still breathing and have a pulse, lying them flat and ensuring their airway is open can help recover them. However, getting up and walking around immediately after a faint can worsen symptoms.
In some cases, getting hydrated and adding salt to the diet may not be enough to prevent fainting episodes. Medications or lifestyle changes may be necessary to improve blood pressure control and prevent future episodes.
Seek medical attention if someone has had simple faints with clear precipitants, especially if it’s a first onset of symptoms. However, for people who have experienced recurrent faints despite good hydration, an injury due to a faint, or sudden and abrupt blackouts, seeking emergency medical care is crucial.
By understanding the causes and risks associated with fainting, you can take steps to prevent and manage episodes, ensuring your overall heart health and well-being.
Source: https://newsnetwork.mayoclinic.org/discussion/5-things-to-know-about-fainting-the-hearts-role-and-when-it-may-signal-serious-condition