Is ventricular arrhythmia serious?

Written by Wang Li Bing

Intensive Care Medicine Department

Updated on September 23, 2024

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Arrhythmias are primarily divided into sinus arrhythmias, atrial arrhythmias, and ventricular arrhythmias. Among these, ventricular arrhythmias are further categorized into ventricular premature contractions, ventricular tachycardia, ventricular flutter, and ventricular fibrillation. Ventricular flutter and ventricular fibrillation are fatal types of arrhythmias. Patients generally experience loss of consciousness, generalized convulsions, and even cessation of breathing and death. If ventricular fibrillation occurs, it is imperative to immediately perform defibrillation and cardiopulmonary resuscitation, among other emergency interventions.

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Written by Zhang Yue Mei

Cardiology

46sec

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Causes of arrhythmia

Arrhythmia is a common and frequently occurring disease in clinical practice, primarily caused by various organic heart diseases. Common heart diseases include coronary heart disease, congenital heart disease, rheumatic heart disease, pulmonary heart disease, severe myocarditis, and cardiomyopathy, all of which can lead to arrhythmias that are generally severe. Arrhythmias can also occur in some healthy individuals due to instability of the autonomic nervous system. This type of arrhythmia can be clinically cured through lifestyle adjustments, appropriate exercise, and improvements in myocardial contractility and conductivity.

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Written by Chen Ya

Geriatrics

1min 10sec

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What department should one go to for arrhythmia?

Arrhythmia is an important group of diseases among cardiovascular diseases. It can occur on its own or in conjunction with other cardiovascular diseases, thus it mainly requires consulting a department of cardiology. However, due to other causes such as electrolyte or endocrine disorders, anesthesia, hypothermia, thoracic or cardiac surgery, drug effects, and central nervous system diseases, the assistance of endocrinologists and neurologists is needed for diagnosis and treatment. Sometimes, the arrhythmia might be caused by endocrine disorders, such as thyroid diseases or hypoglycemic symptoms in diabetes, necessitating a consultation with the department of endocrinology. If symptoms like transient blindness, fainting, dizziness, or convulsions occur, it is essential to consider brain-related diseases, such as epilepsy or transient insufficient brain blood supply, and consult the department of neurology to make a differential diagnosis.

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Written by Chen Tian Hua

Cardiology

42sec

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Arrhythmia is what?

Arrhythmia refers to abnormalities in the frequency, rhythm, origin, or conduction of the heartbeats. It can occur in healthy individuals as well as those with related diseases, and may involve cardiac diseases or other medical conditions. The primary mechanism behind the occurrence of arrhythmias is the abnormal formation of cardiac impulses or the abnormal conduction of these impulses. It is important to actively seek the causes of arrhythmias and control the factors that trigger them. For diseases associated with arrhythmias, proactive management is necessary. When severe arrhythmias occur, timely and effective treatment is crucial to prevent adverse outcomes.

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Written by Chen Ya

Geriatrics

1min

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Can arrhythmia cause sudden death?

The clinical manifestations of hemodynamic changes caused by arrhythmias mainly depend on the nature, type, cardiac function, and the extent of impact on hemodynamics. Mild conditions such as slight sinus bradycardia, sinus arrhythmia, occasional atrial premature contractions, and first-degree atrioventricular block have minimal impact on hemodynamics and therefore do not exhibit significant clinical manifestations, and sudden death is generally not expected. However, more severe arrhythmias, such as sick sinus syndrome, rapid atrial fibrillation, paroxysmal supraventricular tachycardia, and sustained ventricular tachycardia, can lead to palpitations, chest tightness, dizziness, hypotension, and sweating. In severe cases, syncope, Adams-Stokes syndrome, or even sudden death may occur.

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Written by Chen Ya

Geriatrics

1min 33sec

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What tests are done for arrhythmia?

The examinations required for arrhythmia are as follows: First, an electrocardiogram, which is the most important non-invasive diagnostic technique for diagnosing arrhythmias. Second, a Holter monitor test should be conducted, which records the electrocardiogram continuously over 24 hours to possibly capture the occurrence of symptoms such as palpitations and fainting, and whether they are related to arrhythmias. It clarifies the relationship between arrhythmias or myocardial ischemia attacks and daily activities, as well as their diurnal distribution characteristics, and can assist in evaluating the efficacy of medications and the condition of pacemakers to some extent. Third is the exercise test; if palpitations occur during exercise, an exercise test can assist in making a diagnosis. Fourth is the esophageal electrocardiogram, which is a useful non-invasive method for diagnosing arrhythmias. Fifth is the cardiac electrophysiological study, typically involving the placement of electrode catheters on the upper and lower parts of the right atrial wall, the tip of the right ventricle, the coronary sinus, and the His bundle area, with the electrical activity at these sites being simultaneously recorded using a multi-channel physiological recorder with 8-12 channels or more.