Multifocal atrial tachycardia

Multifocal Atrial Tachycardia (MAT) is a type of tachycardia characterized by multiple P wave morphologies and irregular P-P intervals. It is often associated with severe pulmonary disease and older adults.

Pronunciation

• Multifocal: /ˌmʌltiˈfəʊk(ə)l/
• Atrial: /ˈeɪtrɪəl/
• Tachycardia: /ˌtakiˈkɑːrdɪə/

Etymology

• Multifocal: Derived from Latin multus (many) and focus (hearth, fireplace), referring to the multiple origins of electrical impulses.
• Atrial: Derived from Latin atrium, referring to the upper chambers of the heart.
• Tachycardia: Derived from Greek tachys (swift) and kardia (heart), referring to a rapid heart rate.

Definition

Multifocal Atrial Tachycardia (MAT) is a type of arrhythmia characterized by three or more distinct P wave morphologies on the ECG, irregular P-P intervals, and a rapid heart rate (>100 beats per minute). It is often seen in patients with severe pulmonary disease, such as COPD, and in older adults.

Related Terms

• Tachycardia
• Arrhythmia
• P wave
• Electrocardiogram
• Chronic Obstructive Pulmonary Disease

See Also

• Supraventricular Tachycardia
• Atrial Fibrillation
• Atrial Flutter

External links

• Medical encyclopedia article on Multifocal atrial tachycardia
• Wikipedia's article - Multifocal atrial tachycardia

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