Remove Blood Pressure Remove Bradycardia Remove Stent
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Texted from a former EM resident: 70 yo with syncope and hypotension, but no chest pain. Make their eyes roll!

Dr. Smith's ECG Blog

Former resident: "Just saw cath report, LAD stent was 100% acutely occluded." They of course opened and stented it. Acute MI per se usually does not depress cardiac function and blood pressure enough to cause syncope ( Mostafa et al — J Com Hosp Intern Med Perspect 13(4):9-12, 2023 - ). Smith : "What was the outcome?"

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Three normal high sensitivity troponins over 4 hours with a "normal ECG"

Dr. Smith's ECG Blog

The ECG shows sinus bradycardia but is otherwise normal. On the combined basis of angiography and IVUS, this patient received stents to his mid RCA, proximal PDA, and OM. RCA and PDA before and after, arrows indicating stented regions. OM before and after, arrow indicating stented region. The following ECG was obtained.

Angina 119
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Chest pain and shock: Is there a right ventricular OMI on this ECG? And should he undergo trancutaneous pacing?

Dr. Smith's ECG Blog

BP was 108 systolic (if a cuff pressure can be trusted) but appeared to be maintaining BP only by very high systemic vascular resistance. Here is his ED ECG: There is bradycardia with a junctional escape. Case continued A bedside ultrasound showed diminished LV EF and of course bradycardia. What is the atrial activity?

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A 40-Something male with a "Seizure," Hypotension, and Bradycardia

Dr. Smith's ECG Blog

Both of these features make inferior + RV MI by far the most likely ( Pseudoanteroseptal MI is another name for this ) There is also sinus bradycardia and t he patient is in shock with hypotension. A narrow complex bradycardia without any P-waves is also likely to respond to atropine, as it may be a junctional rhythm.

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See OMI vs. STEMI philosophy in action

Dr. Smith's ECG Blog

Blood pressure: 130/80 mmHg, heart rate: 45/min, respiratory rate: 18/min, SaO2: %98, body temperature: normal. His first electrocardiogram ( ECG) is given below: --Sinus bradycardia. The lesion was successfully stented. On his physical examination, cardiac and pulmonary auscultation was completely normal.

STEMI 52
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Inferior ST elevation with reciprocal change: which of these 4 patients has Occlusion MI?

Dr. Smith's ECG Blog

Patient 2 : 55 year old with 5 hours of chest pain radiating to the shoulder, with nausea and shortness of breath ECG: sinus bradycardia, normal conduction, normal axis, normal R wave progression, no hypertrophy. Smith : The fact that the ECG did not evolve is further proof that this was the baseline ECG. nearly identical to the first case).

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Unresponsive and Acidotic: OMI? Acute, subacute, or reperfused? What is the rhythm? Why RV dysfunction? Can CT scan help?

Dr. Smith's ECG Blog

They were unable to obtain a blood pressure. His heart rate was in the low 20s and we were also unable to obtain a blood pressure. He was given 50 mcg epinephrine with good response in both heart rate and blood pressure. His rhythm on telemetry seemed to be sinus bradycardia vs junctional rhythm.