Does arrhythmia premature beat have danger?

Written by Chen Ya
Geriatrics
Updated on September 02, 2024
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Premature beats, also known as premature contractions, abbreviated as premature beats, are a type of early ectopic heartbeats. They can be classified according to their origin into sinus, atrial, junctional, and ventricular, with ventricular being the most common. Premature beats are a common type of ectopic rhythm that can occur on the basis of sinus or ectopic rhythms, such as atrial fibrillation. They can occur occasionally or frequently and may irregularly or regularly follow each or several normal beats, forming a bigeminy or trigeminy pattern of premature beats. Generally, sinus, atrial, and junctional premature beats do not involve rapid ventricular rates and are usually not life-threatening. Although most premature beats are functional and do not cause damage to the heart, some pathological premature beats occurring on the basis of structural heart disease may further induce arrhythmias. In particular, ventricular premature beats may provoke ventricular tachycardia or ventricular fibrillation and in severe cases, may lead to sudden cardiac death. Additionally, multifocal atrioventricular premature beats are often a precursor to atrial fibrillation.

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Written by Chen Ya
Geriatrics
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What medicine is used for arrhythmia?

There is still no consensus on the drugs commonly used for arrhythmia. The main classes used clinically are as follows: The first class is sodium channel blockers, which include three subclasses: moderate, mild, and significant sodium channel blockers, respectively comprising quinidine, lidocaine, and propafenone. The second class mainly consists of adrenergic receptor blockers, with propranolol being a representative drug. The third class of drugs selectively prolongs the repolarization process, among which amiodarone is commonly used clinically. The fourth class is calcium channel blockers, which mainly block calcium channels and inhibit the inflow of calcium, with verapamil being the main representative drug. Long-term use of anti-arrhythmia drugs can cause varying degrees of side effects, with severe cases possibly leading to ventricular arrhythmia or fatal cardiac conduction block. Therefore, when using these drugs clinically, it is essential to strictly control the indications, monitor adverse reactions, and strictly follow the doctor's prescription for rational medication.

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Written by Zhang Yue Mei
Cardiology
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Causes of sinus arrhythmia

Sinus arrhythmia, the most common cause of which is instability of the nerves that regulate the heart, referred to as the autonomic nervous system. This instability leads to sinus arrhythmia, which is commonly seen in children during their growth phase, women during menopause, or individuals who often stay up late and are under significant work stress, leading to dysfunction of the autonomic nervous system. It can also be caused by patterns of breathing that lead to arrhythmias; the heart rate increases during inhalation and slows during exhalation, producing this type of physiological arrhythmia. Generally, this kind of arrhythmia does not require drug treatment. By improving physical exercise, ensuring adequate sleep, and avoiding stimulating beverages or coffee, this type of heart rate can return to normal.

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Written by Chen Ya
Geriatrics
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Does arrhythmia cause nausea?

Mild arrhythmias, such as sinus bradycardia, sinus arrhythmia, occasional atrial premature contractions, and first-degree atrioventricular block, have minimal impact on hemodynamics, so they generally do not show obvious clinical symptoms. In cases of severe arrhythmias, such as sick sinus syndrome, rapid atrial fibrillation, paroxysmal supraventricular tachycardia, and sustained ventricular tachycardia, significant arrhythmias affect hemodynamics, reduce blood flow, and cause mesenteric artery spasm, which can lead to clinical manifestations of gastrointestinal ischemia, such as nausea, and even bleeding, ulcers, or paralysis.

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Written by Chen Ya
Geriatrics
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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 Ya
Geriatrics
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Arrhythmia is what kind of disease

Arrhythmia is caused by abnormal excitation of the sinoatrial node or excitation originating outside the sinoatrial node, where the propagation of excitation is slow, blocked, or conducted through abnormal channels, leading to abnormalities in the frequency and/or rhythm of heartbeats due to origins and (or) conduction disorders of cardiac activity. Arrhythmia is an important group of diseases within cardiovascular diseases. It can occur independently or in conjunction with other cardiovascular diseases. Its prognosis is related to the causes, inducing factors, and evolutionary trends of the arrhythmia, and whether it leads to severe hemodynamic disturbances. It can cause sudden death or continuously affect the heart leading to its failure.