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A rare case of atrial flutter and a cystic mass in the left atrium

Heart BMJ

A 24-hour 12-lead ECG revealed sinus rhythm, frequent atrial premature beats, paroxysmal atrial flutter with an atrial flutter burden of 9.37% and no paroxysmal ST-T abnormalities. Cystic formation of the foramen ovale Aortic sinus aneurysm Left. Observations revealed a normal temperature of 36.5°C

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A fascinating electrophysiology case. What is this wide complex tachycardia, and how best to manage it?

Dr. Smith's ECG Blog

The ECG was interpreted as showing atrial flutter with 2:1 conduction. The heart rate could be compatible with that of a 2:1 conducted atrial flutter. Also, lead I could give the initial impression of showing flutter waves. The ECG shows what is likely an atrial ectopic rhythm with a left anterior hemiblock.

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Emergency Department Syncope Workup: After H and P, ECG is the Only Test Required for Every Patient.

Dr. Smith's ECG Blog

Look for Vascular Etiology -- think of these while doing H and P: --Bleeding: ruptured AAA, GI bleed, ruptured ectopic pregnancy, other spontaneous bleed such as mesenteric aneurysms. And when you see the list of patients who had adverse events, 26 of 39 were identified in the ED.