Hemorrhage Ischemia Pericarditis 
Dr. Smith's ECG Blog
OCTOBER 23, 2023
Alternation in ST segment appearance ( or in the amount of ST elevation or depression ) — is often linked to ischemia. Repolarization Alternans — entails beat-to-beat variation in the ST segment and/or T wave. Conduction and Refractoriness Alternans — entails variance of impulse propagation along some par t of the conduction system.
Dr. Smith's ECG Blog
FEBRUARY 6, 2024
The ECG shows sinus tachycardia with RBBB and LAFB, without clear additional superimposed signs of ischemia. Massive Transfusion for Motorcycle Collision with Hemorrhage, Troponin Elevated. Chest trauma was suspected on initial exam. Here is his initial ECG around 1330: What do you think?
Dr. Smith's ECG Blog
NOVEMBER 28, 2022
The second most common cause of medical cardiac tamponade is acute idiopathic pericarditis. Less common etiologies include uremia, bacterial or tubercular pericarditis, chronic idiopathic pericarditis, hemorrhage, and other causes such as autoimmune diseases, radiation, myxedema, etc.
Dr. Smith's ECG Blog
NOVEMBER 25, 2022
A man in his 40s with multitrauma from motor vehicle collision Massive Transfusion for Motorcycle Collision with Hemorrhage, Troponin Elevated. These include ( among others ) — acute febrile illness — variations in autonomic tone — hypothermia — ischemia-infarction — malignant arrhythmias — cardiac arrest — and especially Hyperkalemia.
Dr. Smith's ECG Blog
JANUARY 21, 2023
J waves can also be induced by Occlusion MI (5), STEMI mimics including takotsubo and myocarditis complicated by ventricular arrhythmias (6, 7), and subarachnoid hemorrhage with VF (8). Occurrence of “J Waves” in 12-Lead ECG as a Marker of Acute Ischemia and Their Cellular Basis. Can J Cardiol 2022 Kukla P, Jastrezebski M, Praefort W.
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