Electrocardiogram Ischemia Tachycardia 
Dr. Smith's ECG Blog
JANUARY 1, 2024
An initial electrocardiogram (ECG) is provided below. While the initial impression might not immediately suggest ventricular tachycardia (VT), a closer examination raises suspicion. His current medication regimen includes apixaban, carvedilol, perindopril, spironolactone, torasemide, dapagliflozin, amiodarone, and ivabradine.
Dr. Smith's ECG Blog
JANUARY 1, 2013
Precordial ST depression may be subendocardial ischemia or posterior STEMI. Notice there is tachycardia. I have warned in the past that one must think of other etiologies of ischemia when there is tachycardia. V4-V6, is much more likely to be posterior than subendocardial ischemia. There is no ST elevation.
All About Cardiovascular System and Disorders
MARCH 25, 2024
Pediatric exercise testing may be used for evaluation of various disorders of cardiac rhythm rather than for inducible ischemia as in adults. Ventricular arrhythmias during exercise can be documented in congenital long QT syndromes as well as in catecholaminergic polymorphic ventricular tachycardia.
All About Cardiovascular System and Disorders
NOVEMBER 16, 2023
Mechanism is thought to be due to sustained sympathetic stimulation, probably caused by dysfunction of insular cortex resulting in reversible neurogenic damage to the myocardium which could include contraction bands and subendocardial ischemia [2]. Lead electrocardiogram changes after supratentorial intracerebral hemorrhage.
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?
EMS 12-Lead
APRIL 21, 2022
There is appreciable STE aVR with near-global STD that appropriately maximizes in Leads II and V5, and thus suggesting a circumstance of generic, diffusely populated, circumferential subendocardial ischemia versus occlusive coronary thrombus. [1] There is evolution from Wellens Pattern A to Pattern B, now inclusive of V6.
Dr. Smith's ECG Blog
AUGUST 9, 2019
Post by Smith and Meyers Sam Ghali ( [link] ) just asked me (Smith): "Steve, do left main coronary artery *occlusions* (actual ones with transmural ischemia) have ST Depression or ST Elevation in aVR?" That said, complete LM occlusion would be expected to have subepicardial ischemia (STE) in these myocardial territories: STE vector 1.
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