Dr. Smith's ECG Blog

NOVEMBER 15, 2023

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. See "Mechanisms of acute coronary syndromes related to atherosclerosis".)

Coronary Angiogram 109

Coronary Angiogram Plaque Thrombosis STEMI 109

Dr. Smith's ECG Blog

DECEMBER 19, 2023

The commonest causes of MINOCA include: atherosclerotic causes such as plaque rupture or erosion with spontaneous thrombolysis, and non-atherosclerotic causes such as coronary vasospasm (sometimes called variant angina or Prinzmetal's angina), coronary embolism or thrombosis, possibly microvascular dysfunction.

Plaque 127

Plaque Angina Blog Stent 127

Circulation

NOVEMBER 11, 2024

A pathological classification of no-reflow was proposed: structural no-reflow—microvessels within the necrotic myocardium exhibit loss of capillary integrity (it is usually irreversible)—and functional no reflow—patency of microvasculature is compromised due to distal embolization, spasm, ischemic injury, reperfusion injury.

Ultrasound 40

Ultrasound Plaque Blood Pressure Myocardial Infarction 40

Dr. Smith's ECG Blog

MAY 19, 2020

If the arrest was caused by acute MI due to plaque rupture, then the diagnosis is MINOCA. Here is my comment on MINOCA: "Non-obstructive coronary disease" does not necessarily imply "no plaque rupture with thrombus." They often cannot even be recognized as culprits, as fissured or ulcerated plaque. myocarditis).

Defibrillator 52

Defibrillator Circulation Plaque Cardiac Arrest 52

Stroke Journal

FEBRUARY 1, 2024

We have developed a Proximal balloon Occlusion With forcEd aspiRation (POWER) technique to prevent distal embolization in CAS with the filter protection device. Purpose:Since the balloon protection device became unavailable in Japan three years ago, the DWI-positive rate after carotid artery stenting (CAS) has increased.

Stent 40

Stent Stents Stenosis Embolism 40

DAIC

FEBRUARY 29, 2024

24: Joint American College of Cardiology/Journal of the American College of Cardiology Late-Breaking Clinical Trials (Session 402) Saturday, April 6 9:30 – 10:30 a.m.

Aortic valve 103

Aortic valve Myocardial Infarction Aortic Blood Pressure 103

Dr. Smith's ECG Blog

NOVEMBER 30, 2022

To prove there is no plaque rupture, you need to do intravascular ultrasound (IVUS). An angiogram is a "lumenogram;" most plaque is EXTRALUMINAL!! One of the most common is rupture of a non-obstructive plaque, with thrombus formation and OMI that spontaneously lyses and leaves a wide open artery. It can only be seen by IVUS.

Plaque 52

Plaque Chest Pain Thrombosis Stenosis 52