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Episodes of vasovagal syncope are typically recurrent and usually occur when the predisposed person is exposed to a specific trigger. Before losing consciousness, the individual frequently experiences early signs or symptoms such as lightheadedness, nausea, the feeling of being extremely hot or cold (accompanied by sweating), ringing in the ears, an uncomfortable feeling in the heart, fuzzy ...
Syncope ((syncope ⓘ), commonly known as fainting or passing out, is a loss of consciousness and muscle strength characterized by a fast onset, short duration, and spontaneous recovery. [1] It is caused by a decrease in blood flow to the brain, typically from low blood pressure. [1]
A frequent type of syncope, termed vasovagal syncope is originated by intense cardioinhibition, mediated by a sudden vagal reflex, that causes transitory cardiac arrest by asystole and/or transient total atrioventricular block. [1] [2] It is known as “Vaso-vagal Syncope”, “Neurocardiogenic Syncope” or “Neurally-mediated Reflex Syncope ...
[3] [9] Isoproterenol may be used in the short term for those who have frequent life-threatening abnormal heart rhythms, while quinidine may be used longer term. [3] [10] Testing people's family members may be recommended. [3] The condition affects between 1 and 30 per 10,000 people. [2] It is more common in males than females and in those of ...
Inappropriate sinus tachycardia is a chronic medical condition that has a negative impact on one's quality of life. There are numerous treatment options available, which are frequently combined with nonpharmacologic lifestyle and dietary changes. It is frequently advised to avoid triggers or stimulants such as caffeine, nicotine, and alcohol. [7]
Heat syncope is fainting or dizziness as a result of overheating (syncope is the medical term for fainting). It is a type of heat illness. The basic symptom of heat syncope is fainting, with or without mental confusion. [1] Heat syncope is caused by peripheral vessel dilation, resulting in diminished blood flow to the brain and dehydration.
These physiological changes limit blood flow to the brain and can promote pre-syncope (lightheadedness, feelings of faintness) and syncope (fainting): [6] categorized in this instance as vasovagal fainting. [1] This second, fainting phase is not common to other phobias. [3]
Lightheadedness is very similar to pre-syncope. Pre-syncope is the immediate stage before syncope (fainting), particularly in cases of temporary visual field loss (i.e. vision getting "dark" or "closing in").