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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 ...
Depiction of a drop attack. A drop attack is a sudden fall without loss of consciousness.Drop attacks stem from diverse mechanisms, including orthopedic causes (for example, leg weakness and knee instability), hemodynamic causes (for example, transient vertebrobasilar insufficiency, a type of interruption of blood flow to the brain), and neurologic causes (such as epileptic seizures or ...
[9] [1] When the head is elevated above the feet the pull of gravity causes blood pressure in the head to drop. This is sensed by stretch receptors in the walls of vessels in the carotid sinus and aortic arch. [9] These receptors then trigger a sympathetic nervous response to compensate and redistribute blood back into the brain.
The sensation of chest pain can immediately send your mind racing to: "Oh no, am I having a heart attack?" And, it's true that severe pressure or tightness in the chest is the most common symptom ...
Brain death - Lazarus sign. The Lazarus sign or Lazarus reflex is a reflex movement in brain-dead or brainstem failure patients, [1] which causes them to briefly raise their arms and drop them crossed on their chests (in a position similar to some Egyptian mummies).
Chest pain not related to the heart is known as referred pain: You feel the pain in one location, but another source actually causes it. Take heartburn, for example. Take heartburn, for example.
The pain is agitated by expansion and contraction of the chest. Taking a deep breath and allowing the rib cage to fully expand can relieve the pain, however it will feel unpleasant initially. At the point of full expansion, it can feel like a rubber band snap in the chest, after which the initial pain subsides.
This final phase, the post-drome, is sometimes called a "migraine hangover," and can leave you feeling fatigued. You might also still have some difficulty concentrating and sensitivity to light ...