Dr. Smith's ECG Blog

AUGUST 9, 2024

There are three mechanisms of arrhythmia: automatic, re-entry, and triggered. The most common triggered arrhythmia is Torsades de Pointes. It is a benign arrhythmia which requires no specific treatment. Possible mechanisms of ventricular arrhythmias elicited by ischemia followed by reperfusion. What is the rhythm?

Chest Pain 108

Chest Pain Arrhythmia Myocardial Infarction STEMI 108

Dr. Smith's ECG Blog

JANUARY 1, 2013

A middle aged male with no h/o CAD presented with one week of crescendo exertional angina, and had chest pain at the time of the first ECG: Here is the patient's previous ECG: Here is the patient's presenting ED ECG: There is isolated ST depression in precordial leads, deeper in V2 - V4 than in V5 or V6. There is no ST elevation.

STEMI 52

STEMI Ischemia Chest Pain Myocardial Infarction 52

Dr. Smith's ECG Blog

OCTOBER 24, 2018

This was clearly severe subepicardial ischemia causing ST Elevation, but it was not of a long enough duration to result in measurable infarct. Therefore this is " Transient ST Elevation Unstable Angina." As there was ruptured plaque, this is NOT Prinzmetal's angina. You can see the deficiency of the definition of MI.

STEMI 40

STEMI Angina Myocardial Infarction Plaque 40

Ken Grauer, MD

JULY 15, 2023

The finding of all negative QRS complexes in leads V3-thru- V6 therefore strongly suggests that the arrhythmia-associated impulse is not traveling over an AP ( Steurer et al — Clin. ie, Severe subendocardial ischemia from sustained VT in a patient severe apical cardiomyopathy resulted in a peak troponin >31,000 ng/L in today's case ).

Blog 78

Blog Coronary Angiogram Cardiomyopathy Ischemia 78

Dr. S. Venkatesan MD

AUGUST 19, 2024

Relationship between Ischemia and arrhythmia While the relationship between Ischemia and VT is really complex, the term “Ischemic VT” itself adds more twists. Even here, it is the associated factors, like hypoxia or acidosis are the triggers which of course are resultant of Ischemia.

Ischemia 52

Ischemia Sudden Cardiac Death Ablation Arrhythmia 52

Dr. Smith's ECG Blog

JANUARY 5, 2025

Unfortunately, although natively conducted beats are the best ones for evaluating ischemia, we only have a few! Moving on to ischemia , the ECG shows reperfused inferoposterolateral infarct. On Sunday, the patient complained of dyspnea and angina while ambulating. It looks like a low atrial rhythm.) Repeat ECG is shown.

Chest Pain 79

Chest Pain Ischemia Angina Echocardiogram 79