Symptoms of syncope
Introduction
Introduction Ovarian syncope is a common vasomotor syncope in young people. It refers to various stimuli that mediate reflexes through the vagus nerve, leading to visceral and muscle small blood vessel dilatation and bradycardia. The peripheral blood vessels suddenly expand, the venous blood returns to the heart, and the heart is accelerated. And strengthen the contraction of the reflex action, some people will over-excite the vagus nerve and parasympathetic nerve, which will cause the heartbeat to suddenly slow down, the peripheral blood vessels dilate, resulting in lower blood pressure, brain hypoxia, manifested as arterial hypotension with a short-lived consciousness A syndrome that is lost and self-recoverable without neurological signs.
Cause
Cause
Premature syncope occurs in patients with vasomotor syncope and hypertrophic cardiomyopathy in the elderly.
Examine
an examination
Related inspection
EEG examination electrocardiogram
Vasoic syncope is very common, and it often recurs, especially when the mood is under stress, extreme fatigue, pain, panic, or being crowded, and it is easier to get out of a hot room. Because in addition to the heart, blood vessels in other parts of the body are not dominated by the vagus nerve. In recent years, some scholars believe that the use of "neural cardiogenic syncope" may be more appropriate.
Diagnosis
Differential diagnosis
1. Hypertrophic cardiomyopathy (HCM) is characterized by unsymmetric heart disease characterized by asymmetry of the myocardium, uneven hypertrophy and small ventricular cavity. The incidence is mainly in the middle and young, and there are more familial diseases. However, the incidence of the elderly has gradually increased in recent years.
2, vascular neuropathic syncope: common in vasopressive syncope, also known as autonomic (autonomic) dysfunction or simple syncope, orthostatic hypotonic syncope, urinary syncope and coughing syncope. This disease is more common in young and weak women, caused by the sudden expansion of a wide range of small blood vessels. Because small blood vessels are spread all over the body, the number is large. After a sudden expansion, the blood returning to the heart is reduced, and the cardiac output is correspondingly reduced, thereby causing brain ischemia and causing syncope.
Vasomotor syncope is very common, it often recurs, especially when the mood is under considerable stress, extreme fatigue, pain, panic, or being crowded, sultry rooms are more likely to attack. Because of the heart, other parts of the body The blood vessels are not dominated by the vagus nerve. In recent years, some scholars believe that the use of "neural cardiogenic syncope" may be more appropriate.
