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We periodically review this intriguing ECG finding that is best known for its association with hypothermia — but which may also be seen in association with a number of other entities, including acute infarction and cardiacarrest. My Comment addresses a few additional aspects of this phenomenon.
Edited by Bracey, Meyers, Grauer, and Smith A 50-something-year-old female with a history of an unknown personality disorder and alcohol use disorder arrived via EMS following cardiacarrest with return of spontaneous circulation. The described rhythm was an irregular, wide complex rhythm.
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?
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.
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 — cardiacarrest — and especially Hyperkalemia.
NOTE #3: In the context of a long QTc or ischemia — the finding of ST segment and/or T wave alternans may predict the occurrence of malignant ventricular arrhythmias.
This ECG is diagnostic of diffuse subendocardial ischemia. Because the patient had asystole, was resuscitated without difficulty, and had no neurologic function, suspected a cerebral hemorrhage was suspected as the etiology of the arrest, specifically subarachnoid hemorrhage. Kurkciyan et al.
Osborn waves have been reported with hypercalcemia, brain injury, subarachnoid hemorrhage, Brugada syndrome, cardiacarrest from VFib — and — severe, acute ischemia resulting in acute MI ( See My Comment in the November 22, 2019 post on Dr. Smith’s Blog ). Rituparna et al — as well as Chauhan and Brahma ( Int.
The patient was unconscious BEFORE the cardiacarrest, at the same time that she had strong pulses. Therefore, cardiacarrest is NOT the etiology of the coma. Moreover, when someone has immediate resuscitation of an arrest witnessed by paramedics, they rarely have a GCS of 3 (deep coma).
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. Pacing Clin Electrophysiol.
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