AFIB Ischemia Tachycardia 
Dr. Smith's ECG Blog
NOVEMBER 26, 2018
In some cases the ischemia can be seen "through" the flutter waves, whereas in other cases the arrhythmia must be terminated before the ischemia can be clearly distinguished. 2) Tachycardia to this degree can cause ST segment changes in several ways. Again, not an expected outcome with diltiazem).
Dr. Smith's ECG Blog
AUGUST 17, 2022
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. Atrial fib may cause Occlusion mimic."
Ken Grauer, MD
FEBRUARY 18, 2023
The finding of a fairly regular, wide tachycardia without clear sign of atrial activity ( especially when seen in an acutely symptomatic patient ) — should immediately prompt a diagnosis of VT until proven otherwise. These findings suggest that instead of VT — the rhythm in Figure-1 is AFib with a fairly rapid ventricular response.
Dr. Smith's ECG Blog
FEBRUARY 6, 2024
The ECG shows sinus tachycardia with RBBB and LAFB, without clear additional superimposed signs of ischemia. The Initial ECG in Today's Case: As per Dr. Meyers — the initial ECG in today's case shows sinus tachycardia with bifascicular block ( = RBBB/LAHB ). Sinus Tachycardia ( common in any trauma patient. ).
Dr. Smith's ECG Blog
APRIL 24, 2022
The ECG there reportedly showed an irregular tachycardia, and the patient was immediately referred to the emergency room. Here is her ECG on arrival: There is a wide complex tachycardia that is irregularly irregular (this is difficult to determine at these very high rates). Vitals were within normal limits other than heart rate.
Dr. Smith's ECG Blog
NOVEMBER 4, 2022
His response: “subendocardial ischemia. Smith : It should be noted that, in subendocardial ischemia, in contrast to OMI, absence of wall motion abnormality is common. With the history of Afib, CTA abdomen was ordered to r/o mesenteric ischemia vs ischemic colitis vs small bowel obstruction. Anything more on history?
Dr. Smith's ECG Blog
MARCH 6, 2020
Here was his ED ECG: There is sinus tachycardia (rate about 114) with nonspecific ST-T abnormalities. There is no evidence of infarction or ischemia. An ECG was recorded: This shows a regular narrow complex tachycardia at a rate of about 160. There are nonspecific ST-T abnormalities. This seems to me to be very unlikely.
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