Premature Beats

 

 

 

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Interestingly, both skipped beats and extra beats or palpitations typically have the same cause: the heart’s regular rhythm is interrupted by a premature or early beat. If the premature beat arises from the atria (upper chambers), it is called a premature atrial contraction (PAC). If it arises from the ventricles (lower chambers), it is called premature ventricular contraction (PVC). In most cases, neither is considered dangerous, though exceptions exist. …..
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Premature beats (早搏) are common in healthy people of all ages. Caffeine, alcohol, stress, and fatigue may cause PACs or PVCs to occur more frequently……

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Premature atrial contraction
Premature atrial contractions (PACs), also known as atrial premature complexes (APC) or atrial premature beats (APB), are a common cardiac dysrhythmia characterized by premature heartbeats originating in the atria. While the sinoatrial node typically regulates the heartbeat during normal sinus rhythm, PACs occur when another region of the atria depolarizes before the sinoatrial node and thus triggers a premature heartbeat……
PACs commonly occur in healthy young and elderly people without heart disease, and by themselves are not considered an abnormal finding…….
In most cases, no treatment other than reassurance is needed for PACs …..
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早搏

早搏是過早搏動的簡稱,或稱期外收縮。

規則的心臟跳動之外出現突然提前的心跳稱為過早搏動(早搏),早搏時可無症狀,也可有心悸或心跳暫停感。頻發早搏使心排血量降低,或會引起腦供血不足時引起乏力、頭暈及胸悶,並可使原有的心絞痛或心力衰竭加重。用手測搭脈搏時可發現脈搏不穩定、早跳或「漏跳」。早搏可偶爾出現,也可頻發。早搏可以出現在任何的年齡段的患者。

早搏很常見,本身並非嚴重疾病,可發生在各種心臟病的基礎上,也可出現在正常人。但是如果有其他心臟問題則需要注意及時請醫生查明病因,及早治療為佳。

有早搏症狀的人要注意勞逸結合,不吸煙,不飲酒,注意飲食及有充足的睡眠。
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Premature ventricular contraction
A premature ventricular contraction (PVC) — also known as a premature ventricular complex, ventricular premature contraction (or complex or complexes) (VPC), ventricular premature beat (VPB), or ventricular extrasystole (VES) — is a relatively common event where the heartbeat is initiated by Purkinje fibers in the ventricles rather than by the sinoatrial node, the normal heartbeat initiator…….
Premature ventricular contractions can occur in a healthy person of any age, but are more prevalent in the elderly and in men. They frequently occur spontaneously with no known cause…..

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Premature Ventricular Contractions (PVCs, PVC)
Premature ventricular contractions are common. Many people have premature ventricular contractions without any symptoms. Premature ventricular contractions may be more common among older patients, patients with high blood pressure, and patients with heart disease
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