What tests are done for arrhythmia?

Written by Chen Ya
Geriatrics
Updated on September 02, 2024
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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.

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Written by Chen Ya
Geriatrics
1min 28sec home-news-image

Arrhythmia is caused by what?

Arrhythmia is caused by abnormal excitation of the sinoatrial node or excitation originating outside the sinoatrial node, with slow conduction, blockage, or conduction through abnormal pathways. This results in the frequency and (or) rhythm abnormalities of heartbeats, which are collectively referred to as arrhythmias. Most of the causes include the following: one is genetic arrhythmias, often due to gene channel mutations, such as the commonly seen long QT syndrome, short QT syndrome, Brugada syndrome, etc. There are also acquired arrhythmias, seen in various organic heart diseases, including coronary atherosclerotic heart disease, commonly referred to as coronary heart disease, cardiomyopathy, myocarditis, and rheumatic heart disease, particularly prevalent during heart failure or acute myocardial infarction. Arrhythmias are also not uncommon in basically healthy individuals or patients with autonomic dysfunction. Other causes include electrolyte imbalance or endocrine disorders, and sometimes anesthesia, hypothermia, or surgery, such as thoracic or cardiac surgery, or medications, central nervous system diseases may also cause arrhythmias, but the specific reasons are not very clear.

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Written by Zhang Yue Mei
Cardiology
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Is sinus arrhythmia serious?

Sinus arrhythmia is a relatively common type of arrhythmia in clinical practice. It is typically identified through electrocardiogram testing. If no other specific symptoms are present other than sinus arrhythmia, sinus bradycardia, or sinus tachycardia, and if there is no structural heart disease, generally, there are no serious concerns. Often, these kinds of arrhythmias are caused by autonomic nervous system dysfunction, leading to an imbalance between the sympathetic and parasympathetic nerves. To address this irregular heartbeat, it is advisable to rest adequately in daily life and to include some aerobic exercise. Exercise can enhance cardiac contractility and strengthen regular heart function, which can help correct the arrhythmia.

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Written by Li Hai Wen
Cardiology
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Arrhythmias include:

Arrhythmia is a very common disease in our daily life. What does arrhythmia include? Generally speaking, arrhythmia often includes the following aspects: First, irregular heartbeat, such as sinus arrhythmia, atrial fibrillation, and frequent premature beats. Second, tachycardia, such as paroxysmal supraventricular tachycardia, ventricular tachycardia, and so on. Third, bradycardia diseases, such as sinus bradycardia, severe atrioventricular block, and sick sinus syndrome, etc.

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Written by Zhang Yue Mei
Cardiology
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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
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How to treat arrhythmia?

The treatment of arrhythmias should be based on the symptoms of the patients with arrhythmias, the type of arrhythmias, and their impact on hemodynamics. Control of arrhythmias during episodes involves removing the cause and focus of the disease and preventing recurrence, which can be divided into non-pharmacological and pharmacological treatments. Non-pharmacological treatments include methods such as eyeball compression, carotid sinus massage, pinching the nose to exhale forcefully and hold breath to reflexively excite the vagus nerve, along with electrical treatments like electrical cardioversion, defibrillation, pacemaker implantation, and ablation surgery. There are mainly four types of drugs used: sodium channel blockers; beta-adrenergic blockers; drugs selectively prolonging the repolarization process, such as amiodarone; and calcium channel blockers. However, long-term use of these antiarrhythmic drugs can have varying degrees of side effects, and severe cases can cause ventricular arrhythmias or cardiac conduction block which can be fatal. Therefore, in clinical application, it is essential to strictly control the indications, monitor for adverse reactions, and rigorously follow the doctor's orders.