Does sudden cardiac death relate to coronary heart disease?

Written by Xie Zhi Hong

Cardiology

Updated on November 12, 2024

00:00

00:00

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.

Other Voices

home-news-image

Written by Chen Guang Yin

Cardiology

51sec

home-news-image

Golden hour for emergency treatment of cardiogenic sudden death

Cardiac arrest is now also a very frequent event. We have seen some reports of it occurring frequently at airports, train stations, and on public transport, involving middle-aged, elderly, or even young individuals. The golden window for emergency aid is 4 to 6 minutes, with shorter times being preferable. We say time is life because after 4 to 6 minutes, if effective circulation isn't restored, brain cells begin to die. Even if later resuscitation restores breathing and heartbeat, the individual may end up in a vegetative state. Therefore, within the shortest time frame of 4 to 6 minutes, external chest compressions, including opening the airway and artificial respiration, must be administered. The optimal window is 4 minutes, but no more than 6 minutes.

home-news-image

Written by Chen Guang Yin

Cardiology

42sec

home-news-image

The difference between sudden cardiac death and myocardial infarction.

Sudden cardiac death and myocardial infarction are both types of coronary heart disease; they are classified under coronary heart disease. Sudden cardiac death is mostly caused by extensive myocardial infarction, with some patients experiencing it due to severe arrhythmias leading to sudden death. The primary clinical symptoms of myocardial infarction are typically those of coronary heart disease, including chest tightness, chest pain, and sweating. Sudden cardiac death can be triggered by myocardial infarction, but the two are not the same. Having a myocardial infarction does not necessarily result in sudden death, and myocardial infarction can be alleviated with treatment.

home-news-image

Written by Chen Guang Yin

Cardiology

38sec

home-news-image

Will there be any sequelae from cardiogenic sudden death?

So, sudden cardiac death is firstly a sudden event. Whether there are sequelae depends greatly on whether timely rescue was administered at the time of the cardiac arrest. If effective cardiopulmonary resuscitation is given within a short time, generally within 4-6 minutes, then the patient's vital signs including consciousness might gradually recover, and it's possible that no severe sequelae will remain. However, if the rescue is not timely, it's possible for the heartbeat and breathing to be restored but not consciousness, leading to brain death and a vegetative state. This is a possibility.

home-news-image

Written by Li Hai Wen

Cardiology

1min

home-news-image

What does sudden cardiac death mean?

Sudden cardiac death refers to the sudden mortality caused by heart diseases, and the reasons for sudden cardiac death primarily include the following aspects: First, structural heart diseases, such as coronary heart disease and acute myocardial infarction; acute myocardial infarction is currently the most common cause of sudden cardiac death. Second, certain ion channel diseases, such as Brugada syndrome, or long QT syndrome. These types of ion channel diseases often coincide with malignant ventricular arrhythmias, such as torsade de pointes ventricular tachycardia or ventricular fibrillation, thus leading to the occurrence of these fatal phenomena. Third, severe arrhythmias, such as severe bradycardia or ventricular tachycardia related to structural heart disease, often trigger malignant ventricular arrhythmias, leading to death.

home-news-image

Written by Chen Guang Yin

Cardiology

41sec

home-news-image

Can an electrocardiogram be used to check for sudden cardiac death?

Can an electrocardiogram (ECG) detect the potential for sudden cardiac death in the future? Sudden cardiac death cannot be detected by an electrocardiogram. An ECG can only identify conditions such as myocardial infarction, arrhythmias, or premature beats occurring at the time of the test. Sudden cardiac death is a sudden cardiac event that definitely cannot be predicted by an ECG. There are some risk factors for sudden cardiac death, such as high blood pressure, diabetes, and underlying diseases like coronary heart disease, which make individuals more susceptible to sudden cardiac death. We cannot rely on an ECG to predict it.