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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 ...
The “Cardioneuroablation” is a technique created in the nineties and patented in USA, aiming to eliminate the cardiac branch of vagal reflex in order to treat the neurocardiogenic syncope without pacemaker implantation. [6] [7] It is performed without surgery, by using radiofrequency catheter ablation with one-day hospital. [citation needed]
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 ]
Reflex asystolic syncope (RAS) is a form of syncope encountered mainly, but not exclusively, in young children. Reflex anoxic seizures are not epileptic seizures or epilepsy . [ 1 ] This is usually a consequence of a reduction in cerebral perfusion by oxygenated blood .
Symptoms of neurogenic shock are differentiated from other forms of shock by the lack of signs of the compensatory mechanisms triggered by the SNS, usual in other forms of shock. 'This SNS response is effected via release of epinephrine and norepinephrine , and signs of these neurotransmitters ' activity are typically absent where shock is of ...
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.
Hair-grooming syncope (also known as hair-combing syncope) is a form of syncope (a fainting disorder) associated with combing and brushing one's hair. It is most typically seen in children aged five to sixteen. Hair-grooming syncope typically manifests as presyncopal symptoms during hair combing, brushing, braiding, trimming, curling or blow ...
However, if the Bezold–Jarisch reflex is activated due to the reduced ventricular volume this may trigger paradoxical bradycardia and arterial hypotension resulting in syncope. The importance of this mechanism is unclear since vaso-vagal syncope can be observed in cardiac transplant patients who are presumed to lack cardiac innervation. [6]