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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 ...
As exposure continues, it is expected that the phobic response will become less pronounced, and symptoms less debilitating. [12] While AT targets the phobia's physiological response, aiming to raise blood pressure and directly prevent fainting, AR focuses mainly on helping an individual avoid the phobia's associated anxiety.
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 ...
The discussion of the evolutionary basis of needle phobia in Hamilton's review article concerns the vasovagal type of needle phobia, which is a sub-type of blood-injection-injury type phobia. This type of needle phobia is uniquely characterized by a two-phase vasovagal response. [4] First, there is a brief acceleration of heart rate and blood ...
Severe cases of this fear can cause physical reactions that are uncommon in most other fears, specifically vasovagal syncope (fainting). [1] Similar reactions can also occur with trypanophobia and traumatophobia. For this reason, these phobias are categorized as blood-injection-injury phobia by the DSM-IV. [2]
The physiological response to a sudden immersion in cold water may be divided in three or four discrete stages, with different risks and physiological changes, all being part of an entity labelled as Cold Water Immersion Syndrome. Although this process is a continuum, the 4 phases were initially described in the 1980s as follows: [3] [4]
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]
Micturition syncope or post-micturition syncope is the name given to the human phenomenon of fainting shortly after or during urination. The underlying cause is not fully understood, but it may be a result of vasovagal response , postural hypotension , or a combination thereof.