A patient presents with recent onset of breathlessness. An ECG is taken (shown below). What is the diagnosis?
Atrial fibrillation (AF)
Paroxysmal supraventricular tachycardia (PSVT)
Acute myocardial infarction (AMI)
Multifocal atrial tachycardia (MAT)
Ans. D. Multifocal Atrial Tachycardia (MAT)* ECG shows narrow complex tachycardia with irregular rhythm.* Since P waves are seen it rules out AF.* 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 100and150bpm.* Irregularly irregular rhythm with varying FP,PR, and RR intervals.* At least 3 distinct P-wave morphologies in the same lead.Distinct P-wave morphologies* Isoelectric baseline between P waves (i.e., no flutter waves).
C.V.S.