Question
Patient presents with recent onset breathlessness and ECG is taken. ECG is shown below. What is the diagnosis?
A. AF
B. PSVT
C. AMI
D. MAT
Show Answer
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Correct Answer » D
Explanation
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Ans. d. MAT
- ECG shows narrow complex tachycardia with irregular rhythm.
- Since P waves are seen it rules out AE
- Different morphologies of P waves (3) in lead II rules out Sinus arrhythmia.
- All the above said features confirm MAT.
- Also absence of chest pain and significant ST elevations rules out AMI.
Multifocal Atrial Tachycardia (MAT)
ECG Findings
- Heart rate typically between 100 and 150 bpm.
- Irregularly irregular rhythm with varying PP, PR and RR intervals.
- At least 3 distinct P-wave morphologies in the same lead.
- Isoelectric baseline between P-waves (i.e. no flutter waves).
