How to rescue sudden cardiac death from cardiogenic heart disease?

Written by Chen Guang Yin
Cardiology
Updated on December 22, 2024
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Firstly, the rescue approach for cardiogenic sudden death is the same regardless of the cause, whether it is rheumatic heart disease, coronary heart disease, malignant arrhythmia, or any other reason. If cardiogenic sudden death occurs, the rescue method is the same, which is to urgently perform cardiopulmonary resuscitation (CPR). CPR includes chest compressions of at least 100 per minute, and these must be effectively carried out. Secondly, artificial respiration must be performed, at about fourteen to fifteen times per minute. These two measures are the primary measures in the rescue of cardiogenic sudden death caused by rheumatic heart disease.

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Written by Chen Guang Yin
Cardiology
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Precursors of cardiogenic sudden death during sleep

Before the onset of cardiac arrest during sleep, patients often exhibit symptoms of coronary heart disease such as chest tightness, shortness of breath, and palpitations. Often, these individuals do not pay enough attention to the symptoms, do not undergo timely medical examinations at a hospital, and consequently, there is a delay in the treatment of the condition. It is very unfortunate that sudden deaths occur during sleep, possibly due to fatigue, poor rest, and underlying heart disease, which then leads to cardiac arrest. The precursors of such events can vary from person to person; symptoms may include chest tightness and palpitations, among others. Therefore, it is important that we pay attention to these signs.

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Written by Xie Zhi Hong
Cardiology
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Why does cardiogenic sudden death cause pallor throughout the body?

Sudden cardiac death occurs due to heart thrombosis or heart failure caused by various reasons whereby the heart cannot supply blood, leading to death. Most people experience hypotensive shock, insufficient blood and oxygen supply to the body before dying, thus appearing pale, with low blood pressure, and even cyanosis, with cessation of breathing and heartbeat. Some individuals suffer from heart thrombus dislodging into the brain, causing cerebral arterial infarction. Such extensive cerebral infarctions can also lead to the cessation of heartbeat, resulting in insufficient blood and oxygen supply throughout the body, manifesting as pallor and cyanosis.

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Written by Xie Zhi Hong
Cardiology
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Does sudden cardiac death relate to coronary heart disease?

Some studies suggest that 70% of sudden cardiac deaths are caused by arrhythmias. Most of these arrhythmia-induced sudden deaths are associated with coronary artery atherosclerosis. Some are caused by acute myocardial infarction leading to sudden cardiac death. These are all caused by coronary heart disease. Therefore, sudden cardiac death is related to coronary heart disease. Thus, if coronary heart disease is suspected in a patient, it is crucial to perform early examinations and treatments to prevent the occurrence of myocardial infarction. Typical symptoms of coronary heart disease include intermittent chest tightness and chest pain, which can improve after a few minutes, and should therefore be taken seriously.

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Written by Li Hai Wen
Cardiology
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What tests are needed to prevent sudden cardiac death?

To prevent cardiogenic sudden death, the following examinations are needed: First, echocardiography, which can preliminarily determine if there are any organic heart diseases, such as hypertrophic cardiomyopathy, dilated cardiomyopathy, ischemic cardiomyopathy, or heart valve diseases. These heart conditions are significant causes of cardiogenic sudden death; Second, undergo an electrocardiogram (ECG), which can determine if there is an acute myocardial infarction, another significant cause of cardiogenic sudden death. Additionally, a Holter monitor test should be conducted to observe any serious arrhythmias within a 24-hour period; Third, blood tests, such as tests for cardiac enzymes and troponin. If there is a significant increase in cardiac enzymes and troponin, it is important to be vigilant about the possibility of an acute myocardial infarction. Also, blood tests for electrolytes should be done to detect any severe electrolyte imbalances, which are also significant triggers for cardiogenic sudden death.

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Written by Chen Guang Yin
Cardiology
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The difference between sudden cardiac death and myocardial infarction

Sudden cardiac death and myocardial infarction are both types of coronary heart disease, but they are different from each other. Firstly, having a myocardial infarction does not necessarily result in sudden death. Myocardial damage involves a large area of necrosis in the heart, and the patient may experience symptoms such as chest tightness, shortness of breath, chest pain, and sweating. The main symptom of sudden cardiac death is the abrupt cessation of vital signs, with breathing and pulse disappearing. This condition can be caused by a large and extensive acute myocardial infarction, but it can also be caused by other reasons such as electrolyte disturbances or malignant arrhythmias, which are different causes.