Syncope is caused by a decrease in blood flow to the brain. When blood flow to the brain decreases, oxygen to the brain also decreases. Any of the following conditions may cause syncope:A heart condition, such as a narrow artery or an irregular heartbeat A medical condition such as severe...
Near syncope, also called presyncope, is the feeling that you may faint (lose consciousness), but you do not. Each time you have this feeling is called a near syncope episode.What increases my risk for near syncope?Near syncope is often caused by a drop in your blood pressure that ...
Fainting, which medical professionals call syncope (pronounced SIN-ko-pea), is a temporary loss of consciousness. Fainting is caused by a temporary loss of the brain's blood supply and can be a sign of a more serious condition. People of any age can faint, but elderly persons may have a...
“neurocardiogenic” syncope.In children and teens, fainting often occurs after standingaround on a warm day. It can also be related to pain, fear,even straining when going to the bathroom. Most childrenwho faint need no treatment. If fainting is a more frequentproblem and not caused by ...
Fainting, also called syncope (pronounced SIN-ko-pee), is a sudden, brief loss of consciousness and posture caused by decreased blood flow to the brain.Faintingis a common problem, accounting for 3% of emergency room visits and 6% of hospital admissions. A person may feel faint and lightheade...
Edema is caused by the capillaries, tiny blood vessels in your body, leaking fluid, which builds up in the surrounding tissues. Mild cases of edema can be caused by sitting in one position too long, perhaps in an airplane; eating too much salt; and pregnancy. Serious causes of edema inc...
Endothelial dysfunction is when the semi-permeable membrane becomes damaged and cannot do its job properly. Endothelial dysfunction is caused by a... See full answer below.Become a member and unlock all Study Answers Start today. Try it now Create an account Ask a question Our experts can...
[17]. An uncontrollable cough may be an added key manifestation aiding the diagnosis of NMOSD, as described in many case reports. The cough is caused by autonomic dysregulation secondary to loss of parasympathetic innervation, which originates predominantly in the nucleus ambiguous of the medulla ...
What Caused Jeanne-Francoise Champollion, Decipherer of the Ancient Egyptian Scripts, Premature Death?A possible relationship between so recurrent collapse/syncope events hit Jeanne- Francoise Champollion (JFC)'s and his being forty-one years old when he got the p...
Vasovagal syncope is a common cause of dizziness, lightheadedness, and fainting. The vagus nerve is overstimulated and causes the body's blood vessels to dilate and the heart to slow down. This anti-adrenaline effect decreases the ability of the heart to pump blood upward toward the brain. ...