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AAHYTHMIA DISEASE: Sign, Symptom &Treatment

An arrhythmia is an irregular heartbeat that may feel like a racing or fluttering heart.

It is not always serious but can sometimes indicate a potentially fatal heart problem.


Arrhythmias — sometimes called dysrhythmias — occur when the electrical signals that coordinate heartbeats are not working correctly.

The heart may beat too quickly, too slowly, too early, or with an irregular rhythm. In contrast, a “normal sinus rhythm” refers to how the heart beats when it is working properly.

If they are highly irregular or result from a weak or damaged heart, arrhythmias can cause severe and potentially fatal symptoms and

The heart may beat too quickly, too slowly, too early, or with an irregular rhythm. In contrast, a “normal sinus rhythm” refers to how the heart beats when it is working properly.

If they are highly irregular or result from a weak or damaged heart, arrhythmias can cause severe and potentially fatal symptoms and complications.

Read on to learn more about arrhythmia, including the types, ca

Cardiac arrhythmia refers to conditions in which the heart beats irregularly, too slowly, or too quickly.

There are severalTrusted Source types, including:

Arrhythmias are not always serious, but some can increase the risk of stroke or cardiac arrest.

There are several types of arrhythmia.

AFib

AFib is the irregular beating of the atrial chambers and nearly always involves tachycardia. It is common and mainly develops in adults over 65 yearsTrusted Source.

Instead of a single, strong contraction, the chamber fibrillates or quivers, often producing a rapid heartbeat.

Atrial flutter

While fibrillation causes many random and different quivers in the atrium, atrial flutter usually stems fromTrusted Source one area in the atrium not conducting correcty.

Atrial flutter can be a serious condition and usually leads to fibrillation without treatment.

Some people may experience both flutter and fibrillation.

Supraventricular tachycardia

Supraventricular tachycardia (SVT) is a rapid heartbeat that beginsTrusted Source in the upper chambers of the heart. It prevents blood from filling the heart’s chambers fully between contractions.

Doctors classify atrial fibrillation and flutter under SVT.

Ventricular tachycardia

Ventricular tachycardia (VT) refers to abnormal electrical impulses that start in the lower chambers and cause an abnormally fast heartbeat.

A possible cause of VT is scarring from a previous heart attack.

Ventricular fibrillation

Ventricular fibrillation (VFib) is an irregular heart rhythm consisting of rapid, uncoordinated, and fluttering contractions of the ventricles. The ventricles of the lower chamber do not pumpTrusted Source blood but quiver instead.

VFib can be life threatening and has links to heart disease. A heart attack often triggers it.

Bradycardia

Bradycardia is when the heart rhythm is slower than usual, below 60 beats per minute (bpm)Trusted Source for most people. It happens when there is a problem with the sinoatrial node, the heart’s natural pacemaker.

Possible causes include:

  • various types of heart disease
  • chest trauma
  • genetic factors
  • the use of certain drugs and medications
  • हाइपठेर्मिया

Long QT syndrome

Long QT syndrome refers to a heart rhythm disorder that a person is born with. It sometimes causes rapid, uncoordinated heartbeats. It can be life threatening and causes a rhythm known as QT prolongation.

It can also occur due to genetic susceptibility or taking certain medications.

Learn more about long QT syndrome.

There are many risk factors for arrhythmias, and different types may have different risk factors.

Examples of risk factors for arrhythmias includeTrusted Source:

  • aging, as it is more common in older adults
  • family history of arrhythmia
  • smoking
  • using certain recreational drugs, such as cocaine or amphetamines
  • excess alcohol consumption
  • certain medications, such as antibiotics and over-the-counter cold and allergy medications
  • some conditions, such as:
    • obesity
    • diabetes
    • kidney disease
    • lung disease
    • sleep apnea
    • heart and blood vessel diseases

Arrhythmia does not always cause noticeable symptoms. However, a doctor may detect an arrhythmia during a routine examination.

Having symptoms does not necessarily mean the arrhythmia is severe. Some people have life threatening arrhythmias with no symptoms, while others with symptoms may not have a severe arrhythmia.

Symptoms depend on the type of arrhythmia.

Symptoms of tachycardia

The symptoms of a rapid heartbeat include:

Symptoms of bradycardia

Bradycardia can cause the following symptoms:

Symptoms of AFib

When AFib symptoms occur, they often have a rapid onset and may involve:

  • angina
  • breathlessness
  • dizziness
  • palpitations
  • fainting or nearly fainting
  • weakness

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