Atrial Fibrillation Ischemia Pacemaker 
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. Exam was completely normal except for an irregular heart rate.
Dr. Smith's ECG Blog
JANUARY 9, 2024
She also has a hx of paroxysmal atrial fibrillation and is on oral anticoagulant treatment. She had a single chamber ICD/Pacemaker implanted several years prior due to ventricular tachycardia. Are you confident there is no ischemia? The heart rate could be compatible with that of a 2:1 conducted atrial flutter.
Dr. Smith's ECG Blog
OCTOBER 23, 2023
T wave alternans is characterized by variation in T-wave morphology in the setting of consistent pacemaker and QRS morphology. (1) Alternation in ST segment appearance ( or in the amount of ST elevation or depression ) — is often linked to ischemia. Teaching Points: 1.
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.
Wellnest
DECEMBER 21, 2022
Atrial Fibrillation Atrial fibrillation causes irregular heartbeat, and the heart's normal blood supply is affected. Since atrial fibrillation can also be intermittent, such patients should continuously monitor their heart activity while performing daily activities with a portable ECG device.
Dr. Smith's ECG Blog
OCTOBER 3, 2018
The medics recorded the following initial ECG at time 0: The computer read (see below) gives no further comment beyond ventricular pacemaker. underlying atrial fibrillation or atrial inactivity). Case An elderly patient had acute chest pain and 911 was called. What do you think?
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