What are the most common causes of cardiogenic halopathy?

Cardiogenic syncope is a transient loss of consciousness caused by a transient decrease in cerebral blood flow due to a sudden decrease in cardiac output, and although rare, it often causes fatal consequences.

Cardiac syncope** includes arrhythmias and organic cardiopulmonary disease. Arrhythmias can be secondary to structural heart disease, some of which can be directly or indirectly visualized by echocardiography, such as premature ventricular contractions or ventricular tachycardia in intermuscular space-occupying lesions, and acute thrombopulmonary embolism can also induce arrhythmias through vagus reflex. In patients with suspected organic cardiopulmonary disease, echocardiology** can help identify or rule out cardiogenic syncope.

The European guidelines for the diagnosis and treatment of syncope indicate that there are 7 main categories of "structural heart disease or cardiopulmonary disease" in cardiogenic syncope.

a.Mitral stenosis.

b.Viral myocarditis.

c.Aortic stenosis.

d.Strict and naïve spring center of gravity is out of rhythm.

e.Hypertrophic cardiotolerant myopathy.

Correct answer with balance: d

Cardiogenic syncope: This condition is caused by cerebral ischemia caused by a sudden decrease in cardiac output or pause in blood output. It is more common in severe aortic or pulmonary stenosis, atrial myxoma, acute myocardial infarction, severe arrhythmia, and prolonged Q-T syndrome.

It is easy to distinguish by careful history, physical examination, and ECG changes. It is usually manifested as sudden syncope when standing up or sitting, and there may be brief dizziness, inattention, paleness, decreased vision and hearing, nausea, vomiting, sweating, unsteadiness and other aura symptoms before the onset of the disease, and in severe cases, there may be an aura of 10-20 seconds. If you are alert to this aura and lie down in time, it may be relieved or disappear.

At the beginning, the heartbeat is often accelerated, and the blood pressure can be maintained, and then the heartbeat slows down, the blood pressure gradually decreases, and the systolic blood pressure decreases significantly compared with the diastolic blood pressure, so the pulse pressure difference decreases, and when the systolic blood pressure drops, there can be loss of consciousness for a few seconds or minutes, a small number of patients can be accompanied by urinary incontinence, fatigue, dizziness and other discomforts after waking up, and in severe cases, there may be symptoms such as forgetting, mental trance, and headache after waking up, and the symptoms disappear for 1-2 days. Physical examination at the time of the attack may reveal signs of decreased blood pressure, slow heartbeat, and dilated pupils. There are often no positive signs between episodes.

Can be misdiagnosed as epilepsy. High temperatures, poor ventilation, fatigue, and various chronic diseases can precipitate the disease. The above is for reference only o( o....

Answer]: eArrhythmias are the most common cause of cardiogenic syncope. When the cardiac pacing or conduction disorder reaches a certain degree of severe disruption, bradycardia (less than 30 to 35 beats or even asystole) or tachycardia (more than 150 to 180 beats) and ineffective systolic increase and defeat fingers can reduce the stroke volume and lead to syncopal episodes.

a.Cerebral arteriosclerosis.

b.Ventricular fibrillation.

c.Severe ulnar aortic stenosis.

d.Hypertrophic cardiomyopathy.

e.High infarction of myocardium.

Correct Answer: a