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What does AIVR mean?

Accelerated Idioventricular Rhythm (AIVR) is a ventricular rhythm consisting of three or more consecutive monomorphic beats, with gradual onset and gradual termination. It can rarely manifest in patients with completely normal hearts or with structural heart disease.

What can cause AIVR?

The most common cause of AIVR is myocardial ischemia-reperfusion….Other causes include the following:

  • Buerger disease.
  • Congenital heart disease.
  • Dilated cardiomyopathy.
  • Myocarditis.
  • Drugs: Digoxin toxicity, cocaine toxicity, and various anesthesia agents. [21, 22]
  • Electrolyte abnormality.
  • Postresuscitation.

What is the Idioventricular rhythm?

Idioventricular rhythm is a slow regular ventricular rhythm, typically with a rate of less than 50, absence of P waves, and a prolonged QRS interval.

How is AIVR treated?

Under these situations, atropine can be used to increase the underlying sinus rate to inhibit AIVR. Other treatments for AIVR, which include isoproterenol, verapamil, antiarrhythmic drugs such as lidocaine and amiodarone, and atrial overdriving pacing are only occasionally used today.

What is the difference between IVR and AIVR?

Idioventricular Rhythm (IVR) When Idioventricular Rhythm has a rate greater than 40 bpm it is referred to as Accelerated Idioventricular Rhythm or AIVR.

What are the symptoms of Idioventricular rhythm?


  • Most patients with AIVR have chest pain or shortness of breath, symptoms related to myocardial ischemia.
  • Some patients with AIVR have chest discomfort, shortness of breath, peripheral edema, cyanosis, clubbing, symptoms related to cardiomyopathy, myocarditis, and congenital heart diseases.

Do you treat AIVR?

AIVR is usually hemodynamically tolerated and self-limited; thus, it rarely requires treatment.

Can you have AIVR with AFIB?

AIVR can occur in atrial fibrillation (see image below) and other rhythms when the rate of firing in ectopic ventricular focus surpasses that of the underlying dominant ventricular rate.

What are the symptoms of idioventricular rhythm?

What does Accelerated idioventricular rhythm ( AIVR ) mean?

accelerated idioventricular rhythm (AIVR) an automatic ectopic ventricular rhythm whose rate is greater than 49 beats/min but less than 100 beats/min, without retrograde conduction to the atria. In acute myocardial infarction an AIVR can be a sign of spontaneous reperfusion or a result of thrombolytic therapy.

What is the meaning of the word ethic?

English Language Learners Definition of ethic : rules of behavior based on ideas about what is morally good and bad : an area of study that deals with ideas about what is good and bad behavior : a branch of philosophy dealing with what is morally right or wrong : a belief that something is very important

Which is the best treatment for AIVR recurrence?

Prevention is usually unnecessary due to the benign nature of most AIVR events. Occasionally for patients with significant symptoms and hemodynamic instability, atropine can be used to reduce AIVR recurrence by increasing sinus rate.

How are beta blockers used to treat AIVR?

Patients with AIVR should be treated mainly for its underlying causes, such as digoxin toxicity, myocardial ischemia, and structure heart diseases. Beta-blockers are often used in patients with myocardial ischemia-reperfusion and cardiomyopathy. Transfer to advanced care facility depends on associated conditions.