What are atrial tachyarrhythmias?

What are atrial tachyarrhythmias?

Atrial tachycardia (AT) is a type of abnormal heart rhythm, or arrhythmia. It occurs when the electrical signal that controls the heartbeat starts from an unusual location in the upper chambers (atria) and rapidly repeats, causing the atria to beat too quickly.

What are the causes of tachyarrhythmia?

Things that may lead to tachycardia include:

  • Fever.
  • Heavy alcohol use or alcohol withdrawal.
  • High levels of caffeine.
  • High or low blood pressure.
  • Imbalance of substances in the blood called electrolytes — such as potassium, sodium, calcium and magnesium.
  • Medication side effects.
  • Overactive thyroid (hyperthyroidism)

What drug is used for tachyarrhythmia?

amiodarone (Cordarone, Pacerone) flecainide (Tambocor) ibutilide (Corvert), which can only be given through IV. lidocaine (Xylocaine), which can only be given through IV.

How are tachycardia and tachyarrhythmias classified?

Introduction. Tachyarrhythmia is defined as a heart rhythm with a ventricular rate of 100 beats/min or greater. Tachyarrhythmias are broadly categorized as narrow complex tachycardia (NCT; < 120 ms) or wide complex tachycardia (≥ 120 ms).

Where do tachyarrhythmias originate pals?

Tachyarrhythmia: A tachyarrhythmia is an abnormally rapid heartbeat accompanied by an irregular rhythm. The electrical impulse of the rhythm may have its origin in the atria or the ventricles.

What are examples of tachyarrhythmias?

Examples of tachyarrhythmia include:

  • Multifocal atrial tachycardia.
  • Paroxysmal atrial tachycardia.
  • Paroxysmal supraventricular tachycardia.
  • Sinus tachycardia.
  • Ventricular tachycardia.
  • Atrial fibrillation.
  • Atrial flutter.

Do you give atropine for Vtach?

of atropine sulphate administered intravenously prevented the development of ventricular tachycardia. Apparently this is due, on occasion, to the action of atropine in permitting the sinus node to discharge at a rate more rapid than that of the ventricular focus, the former, thereby, retaining its pacemaker function.

How are tachyarrhythmias classified?

Arrhythmias can be classified based on various criteria. The most common way to categorize them is based on the rate of conduction as bradyarrhythmia with a heart rate of fewer than 60 beats per minute (bpm) and tachyarrhythmia with a heart rate higher than 100 bpm.

Is tachycardia and tachyarrhythmias same?

A racing heart rate is known as tachycardia. If it is fast and an arrhythmia, it is called tachyarrhythmia and it can be a potentially serious medical problem. You may be able to sense a tachyarrhythmia, but sometimes a faster-than-normal heart rate isn’t always noticeable.

Which antiarrhythmic drugs are used to treat tachycardia?

Class III antiarrhythmic drugs such as amiodarone, sotalol, dronedarone, and dofetilide have variable efficacy in terminating atrial tachycardia. However, these agents may be highly effective for maintaining sinus rhythm after conversion to a normal sinus rhythm.

What is atrial tachycardia (at)?

Atrial tachycardia is defined as a supraventricular tachycardia (SVT) that does not require the atrioventricular (AV) junction, accessory pathways, or ventricular tissue for its initiation and maintenance.

What are the treatment options for ventricular tachycardia?

Ventricular Tachycardia Treatment & Management 1 Approach Considerations. Sustained ventricular tachycardia (VT) may lead to hemodynamic collapse. 2 Initial Supportive Management. Rapid transport to an emergency department (ED) is essential. 3 Cardioversion in Acute Ventricular Tachycardia. 4 Poststabilization Management. Initiation…

What is the incidence of AVT tachyarrhythmias?

AV tachyarrhythmias. AVRT is another common form of paroxysmal SVT. The incidence rate of AVRT in the general population is 0.1-0.3%. AVRT is more common in males than in females (male-to-female ratio of 2:1), and patients with AVRT commonly present at a younger age than do patients with AVNRT.