Atrial Fibrillation Dysrhythmia Tachycardia 
Dr. Smith's ECG Blog
MAY 25, 2024
Here is her ECG: Regular Wide Complex Tachycardia. Regular means it can't be atrial fibrillation --Most regular wide complex tachcardia are VT, especially if the patient has poor LV function, as in this case. Could it be atrial tachycardia with RBBB and LPFB aberrancy? What do you think? What do you want to do?
Dr. Smith's ECG Blog
JUNE 11, 2023
The ECGs show a wide complex, irregularly irregular tachycardia. The differential of wide complex irregularly irregular includes: polymorphic VT, atrial fibrillation with WPW, atrial fibrillation with other aberrancy. Thus, the patients rhythm is atrial fibrillation with WPW.
Dr. Smith's ECG Blog
JANUARY 5, 2020
Here is the computer interpretation: ATRIAL FIBRILLATION WITH RAPID VENTRICULAR RESPONSE WITH ABERRANT CONDUCTION OR VENTRICULAR PREMATURE COMPLEXES LEFT AXIS DEVIATION [QRS AXIS beyone -30] NONSPECIFIC ST and T-WAVE ABNORMALITY The over-reading physician confirmed this diagnosis, which is incorrect. It is not atrial fibrillation.
Dr. Smith's ECG Blog
FEBRUARY 6, 2024
The ECG shows sinus tachycardia with RBBB and LAFB, without clear additional superimposed signs of ischemia. Atrial fibrillation is also a predictor of worse outcomes in this case (Alborzi). Between 81-95% of life-threatening ventricular dysrhythmias and acute cardiac failure occur within 24-48 hours of hospitalization.
Dr. Smith's ECG Blog
APRIL 15, 2020
Here is her ED ECG: Here is the ED physician's interpretation: IMPRESSION UNCERTAIN REGULAR RHYTHM, wide complex tachycardia, likely p-waves. LEFT BUNDLE BRANCH BLOCK [120+ ms QRS DURATION, 80+ ms Q/S IN V1/V2, 85+ ms R IN I/aVL/V5/V6] Comparison Summary: LBBB and tachycardia are new. This is clearly ventricular tachycardia.
Dr. Smith's ECG Blog
OCTOBER 25, 2022
We see a regular tachycardia with a narrow QRS complex and no evidence of OMI or subendocardial ischemia. The differential of a regular narrow QRS tachycardia is sinus tachycardia, SVT, and atrial flutter with regular conduction. Now the patient is in sinus tachycardia. Her initial EKG is below. Adenosine worked.
Dr. Smith's ECG Blog
OCTOBER 10, 2022
The rhythm is atrial fibrillation. Then there is loss of pulses with continued narrow complex on the monitor ("PEA arrest") Learning Points: Sudden witnessed Cardiac Arrest due to ACS is almost always due to dysrhythmia. Tachycardia is of course, quite common in patients following cardiac arrest.
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