Dr. Smith's ECG Blog

NOVEMBER 15, 2023

This suggests further severe ischemia. MINOCA may be due to: coronary spasm, coronary microvascular dysfunction, plaque disruption, spontaneous coronary thrombosis/emboli , and coronary dissection; myocardial disorders, including myocarditis, takotsubo cardiomyopathy, and other cardiomyopathies. And yet the arteries remain open.

Coronary Angiogram 109

Coronary Angiogram Plaque Thrombosis STEMI 109

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. Am J Med 2019, 132(5):622-630.

Ischemia 52

Ischemia STEMI Stenosis Chest Pain 52

EMS 12-Lead

MAY 20, 2022

There is broad subendocardial ischemia as demonstrated by STE aVR with concomitant STD that almost appears appropriately maximal in Leads II and V5. There is LBBB-like morphology with persistent patterns of subendocardial ischemia. This is the initial ECG: The QRS is widened with a regular cadence, and there are no discernable P waves.

Cardiomyopathy 52

Cardiomyopathy Ischemia STEMI Coronary Angiogram 52

Dr. Smith's ECG Blog

NOVEMBER 30, 2022

MINOCA may be due to: coronary spasm, coronary microvascular dysfunction, plaque disruption, spontaneous coronary thrombosis/emboli , and coronary dissection. link] We know that most type 1 acute MI due to plaque rupture and thrombosis occurs in lesions that are less than 50% (see Libby reference).

Plaque 52

Plaque Chest Pain Thrombosis Stenosis 52

DAIC

JANUARY 23, 2024

12,16 In 2017, CANTOS (Canakinumab Anti-inflammatory Thrombosis Outcomes Study) provided proof-of-principle that inflammation inhibition in the absence of lipid lowering can significantly reduce cardiovascular event rates and helped to define the interleukin-1 (IL-1) to IL-6 to CRP pathway as a central target in CV disease.16 References: 1.

Cardiovascular Disease 111

Cardiovascular Disease Heart Attack Heart attacks Coronary Artery Disease 111

EMS 12-Lead

AUGUST 14, 2022

A second 12 Lead ECG was recorded: This is a testament to the dynamic nature of coronary thrombosis and thrombolysis. Accurate identification is absolutely necessary as this pattern can be easily misinterpreted for something less nefarious: for example, generic “subendocardial ischemia.” But the lesion is still active!

STEMI 52

STEMI Sudden Cardiac Death Thrombosis Thrombolysis 52

Dr. Smith's ECG Blog

MARCH 8, 2025

It is possible there is microvascular dysfunction producing residual transmural ischemia. But this is most common when there is prolonged ischemia, and this patient had the fastest reperfusion imaginable! Here is the final angiogram following placement of a stent in the ostial RCA. She was defibrillated perhaps 25 times.

Cardiomyopathy 75

Cardiomyopathy Myocardial Infarction Defibrillator Bradycardia 75