AFIB Atrial Fibrillation Ischemia 
Dr. Smith's ECG Blog
JULY 5, 2018
PMH: Known paroxysmal Atrial fib. He is usually is in sinus rhythm as far as he knows, but he cannot subjectively feel atrial fibrillation, so he is never completely certain when he is in sinus or atrial fib. Here is his ECG: Atrial Fib with a Ventricular Response of about 66. He immediately completely recovered.
Dr. Smith's ECG Blog
MARCH 15, 2023
Her Apple Watch suddenly told her that she is in atrial fibrillation. Patients with healthy AV nodes who are not on AV nodal blockers and who are not hyperkalemic should have a rapid ventricular response if they have paroxysmal Atrial fibrillation. I focus my comment on a few additional aspects regarding new AFib.
Dr. Smith's ECG Blog
FEBRUARY 2, 2024
Written by Pendell Meyers First try to interpret this ECG with no clinical context: The ECG shows an irregularly irregular rhythm, therefore almost certainly atrial fibrillation. After an initially narrow QRS, there is a very large abnormal extra wave at the end of the QRS complex. There is also large T wave inversion and long QT.
Dr. Smith's ECG Blog
NOVEMBER 26, 2018
Chart review confirmed that he had been started on flecainide for atrial fibrillation. This new information makes the diagnosis of atrial flutter far more likely: first, atrial fibrillation and flutter are closely associated and, second, this makes a flutter rate of 200 bpm (with 1:1 conduction) quite likely.
Dr. Smith's ECG Blog
AUGUST 17, 2022
Atrial fib may cause Occlusion mimic." ACUTE MI (I allowed Acute MI to be in the report because I knew there would be an elevated troponin from ischemia, which is the definition of acute MI -- but in this case it would most likely be a Type 2 MI from tachycardia) There is also LA-RA lead reversal. The rhythm is rapid AFib.
Dr. Smith's ECG Blog
JANUARY 22, 2020
She previously had Atrial fibrillation with LBBB. This shows atrial fibrillation. The fact that the response is regular proves that the atrial fibrillation is NOT conducting. When atrial fib conducts, the ventricular rate must always be irregular. There was no evidence of ischemia.
Heart 2023 Conference
APRIL 20, 2022
(Harvard University Heart Letter) A clinical polygenic risk score test for diseases ranging from atrial fibrillation (AFib) to breast cancer was piloted by scientists.
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