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Monday, April 20, 2015

How to diagnosis multifocal atrial tachycardia or MAT

                           How to diagnosis multifocal atrial tachycardia or MAT


Multifocal atrial tachycardia is an irregularly irregular rhythm that is frequently associated with severe respiratory disease like decompensated  COPD , severe asthma , severe pulmonary infection.............

The irregularly irregular rhythm have 3 major dysrhythmia
      1. Atrial fibrillation
     2. Multifocal atrial tachycardia
     3. Atrial flutter with variable AV conduction
So when we see irregularly irregular rhythm we think to 3 diagnosis above , to day i will show you the EKG of Multifocal atrial tachycardia.
The pattern of this arrhythmia is
       1. Irregularly irregular RR interval 
       2. P wave precede each QRS complex
       3. at leas 3 morphorlogies of P wave ( multifocale origin of P wave )
      4. Heart rate > 100 per minute 


Here the EKG of MAT





                        


We see heart rate >100 , Irregularly irregular with differences P waves precede each QRS

Another case of MAT with exacerbation of COPD(chronic obstructive pulmonary disease)









    We apply the same criteria like above
Another EKG




How to diagnose atrial fibrillation on ECG paper

                    How to diagnose atrial fibrillation on ECG paper


Hi everyone to day i happy to show you how to diagnosis atrial fibrillation on ECG paper , and i wish that after you read this article you really can diagnosis atrial fibrillation easily just take a look on record strip .


Atrial fibrillation is the most arrhythmia that we meet every day and all departments in hospital so we have to familiar and can diagnose it. This arrhythmia is very commonly in patient with dilated atrium , so all pathology that cause enlargement of atrium is the major cause of atrial fibrillation(afib).


Atrial fibrillation can define as :

Irregularly irrregular ventricular  rhythm and low amplitude baseline oscillation (fibrillatory or f wave)

This is the very useful definition and can help to diagnosis.


here is an ECG of atrial fibrillation



You see there is irregular and irregular of RR interval is the key point to diagnosis of afib and you can't find the P wave but we can see the baseline oscillation.



So take home point to diagnose atrial fibrillation , you have to find

        1. irregular and irregular of RR interval

        2.  baseline oscillation


Another ECG for atrial fibrillation




Yes atrial fibrillation criteria

   1. irregular and irregular of RR interval    

 2.  baseline oscillation

Now you can try another EKG to diagnose afib