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Multifocal Atrial Tachycardia

An irregular, rapid rhythm arising from multiple atrial foci.

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 Multifocal Atrial Tachycardia?

Multifocal atrial tachycardia (MAT) is an irregular arrhythmia arising from multiple atrial foci and characterized by at least three distinct P-wave morphologies. Heart rate is typically 100–180 bpm and it can be confused with atrial fibrillation.

MAT frequently occurs in advanced COPD, pulmonary hypertension, heart failure, hypoxia, electrolyte imbalance and theophylline toxicity. Treatment is generally unsuccessful unless the underlying condition is corrected.

Diagnosis is made by 12-lead ECG. Management involves optimization of underlying pulmonary disease, oxygenation, electrolyte correction and, when needed, calcium channel blockers or beta-blockers.

Symptoms

Palpitations
Dyspnea
Chest pressure
Weakness and fatigue
Dizziness
Occasionally asymptomatic
Deterioration during COPD exacerbations

Risk Factors

Advanced COPD
Pulmonary hypertension
Congestive heart failure
Sepsis and systemic infection
Theophylline use or toxicity
Hypokalemia and hypomagnesemia
Advanced age

When to See a Doctor?

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

  • Palpitations during a COPD exacerbation
  • New-onset irregular pulse
  • Increasing dyspnea and weakness
  • Hypoxia or falling oxygen saturation
  • Chest pain and hemodynamic compromise

Treatment Methods

01
Optimization of the underlying pulmonary disease
02
Oxygen therapy and correction of hypoxemia
03
Correction of electrolytes (K, Mg)
04
Stopping or dose-reducing theophylline
05
Verapamil or metoprolol in suitable cases
06
Cardioversion is ineffective; recurrences are common due to multiple foci

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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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.