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Junctional Tachycardia

A rapid, regular rhythm arising from the AV node or adjacent junctional tissue.

Written by: Saygı Hospital Health Guide Editorial Board
Published:

This content is for general information; please consult your physician for diagnosis and treatment.

References (5)

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What is Junctional Tachycardia?

Junctional tachycardia is a narrow QRS complex arrhythmia caused by accelerated automaticity in the AV node or adjacent junctional tissue. Suppression of the sinus node or enhanced junctional automaticity is the main mechanism.

In children, junctional ectopic tachycardia after cardiac surgery can cause hemodynamic compromise and is potentially dangerous. In adults, digoxin toxicity, ischemia, myocarditis and metabolic derangements can trigger junctional tachycardia.

Diagnosis is made by 12-lead ECG and continuous monitoring. Treatment is directed at the underlying cause; beta-blockers, amiodarone, hypothermic cooling and electrolyte correction are commonly used approaches.

Symptoms

Rapid regular palpitations
Dizziness and weakness
Dyspnea
Chest pain or pressure
Syncope
Anxiety
Postoperative hemodynamic deterioration (in children)

Risk Factors

After congenital cardiac surgery
Acute inferior myocardial infarction
Digoxin toxicity
Myocarditis
Electrolyte disturbances
Rheumatic heart disease
Hypoxia and acid-base disorders

When to See a Doctor?

If you experience any of the following symptoms, seek medical attention promptly:

  • Sudden rhythm disturbance after cardiac surgery
  • Syncope or presyncope
  • Palpitations with hypotension
  • Chest pain and dyspnea
  • Clinical worsening during digoxin therapy

Treatment Methods

01
Correction of the underlying cause (electrolytes, ischemia)
02
Beta-blocker or amiodarone
03
Hypothermia therapy after pediatric surgery
04
Overdrive atrial pacing
05
Stopping digoxin and administering antidote
06
Intensive care and hemodynamic support

Which Department to Visit?

You can visit our Kardiyoloji department for these complaints. Our specialist physicians will create the most suitable treatment plan for you.

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You can make an appointment with our specialists or contact us for your concerns.

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Health Disclaimer: The information on this page is prepared for general informational purposes only. It does not replace medical diagnosis and treatment. Please consult your physician for your complaints. Saygı Hospital does not accept responsibility for actions taken based on the information on this page.