Dr. Smith's ECG Blog

OCTOBER 1, 2023

A man in his mid 60s with history of CAD and stents experienced sudden onset epigastric abdominal pain radiating up into his chest at home, waking him from sleep. He called EMS who brought him to the ED. ED Diagnoses: 1. We've come a long way in 2 years! And the pace only quickens. I ordered morphine but he refused.

OR 127

OR STEMI Coronary CAD 127

Dr. Smith's ECG Blog

FEBRUARY 12, 2024

Here is what the Queen of Hearts AI app says: The patient received aspirin and NTG prehospital, and was transported to the ED. It could be a proximal RCA with both inferior OMI, posterior OMI (pulling ST down in V1/V2), and RV OMI causing large ischemic T-waves in V3-4.

CAD 104

CAD ED OR Coronary 104

Dr. Smith's ECG Blog

JANUARY 28, 2018

A man is his late 50’s presents to the ED with 1 hour of post exertional chest pressure associated with diaphoresis and nausea. He has a history of known CAD, diabetes, and dyslipidemia. The ED ECG in the context of the prehospital ECGs was indeed diagnostic of acute coronary occlusion. Leads II, III, aVF show about 0.5

Coronary 52

Coronary STEMI CAD ED 52

Dr. Smith's ECG Blog

MAY 10, 2023

A CT Coronary angiogram was ordered. Here are the results: --Minimally obstructive coronary artery disease. --LAD CAD-RADS category 1. --No Although a lesion is not visible anatomically on this CT scan, coronary catheter angiography could be considered based on Cardiology evaluation." A repeat troponin returned at 0.45

Coronary 52

Coronary STEMI CAD OR 52

Dr. Smith's ECG Blog

OCTOBER 24, 2019

link] A 30 year-old woman was brought to the ED with chest pain. The biphasic T wave is consistent with recent reperfusion of an occluded coronary artery supplying the inferior region. Here’s the angiogram of the RCA : No thrombus or plaque rupture in the RCA (or any coronary artery) was found. This is written by Brooks Walsh.

Coronary 52

Coronary CAD ACS STEMI 52

Dr. Smith's ECG Blog

JANUARY 31, 2020

A middle-aged man complained of 15 minutes of classic angina that resolved upon arrival to the ED. But it does prove that the patient has coronary disease and makes the probability that his chest pain is due to ACS very very high. Figure-1: The initial ECG that was done in the ED ( See text ).

ED 52

ED Coronary ACS CAD 52

Dr. Smith's ECG Blog

MAY 19, 2020

Angiography showed normal coronaries. MINOCA: Myocardial Infarction in the Absence of Obstructive Coronary Artery Disease). Here is my comment on MINOCA: "Non-obstructive coronary disease" does not necessarily imply "no plaque rupture with thrombus." 2) overlooked obstructive coronary disease (e.g., The K was normal.

Defibrillator 52

Defibrillator CPR Coronary CAD 52

Dr. Smith's ECG Blog

APRIL 24, 2015

He had a history of CAD with CABG. Here was his initial ED ECG: There is atrial fibrillation with a rapid ventricular response. Ventricular fibrillation is not only caused by acute coronary syndrome. A middle-aged male had a V Fib arrest. He had not complained of any premonitory symptoms (which is very common).

Defibrillator 52

Defibrillator ACS CAD STEMI 52

ACEP Now

APRIL 4, 2024

A 59-year-old male with a past medical history of a repaired ventricular septal defect (VSD), dextrocardia, hypertension, hyperlipidemia, and current smoker presented to the emergency department (ED). This patient had known coronary artery disease (CAD), and previously required drug eluting stents to the obtuse marginal and diagonal arteries.

Coronary 40

Coronary STEMI CAD Emergency Department 40

Dr. Smith's ECG Blog

JUNE 19, 2024

Case An 82 year old man with a history of hypertension presented to the ED with chest pain at 1211. The ED provider ordered a coronary CT scan to assess the patient for CAD. His pain suddenly became much worse in the ED and he became acutely diaphoretic, dizzy, and hypotensive. Another blood pressure was checked.

STEMI 60

STEMI Coronary CAD ED 60

Dr. Smith's ECG Blog

APRIL 14, 2023

Sent by Anonymous, written by Pendell Meyers A man in his 60s with history of CAD and 2 prior stents presented to the ED complaining of acute heavy substernal chest pain that began while eating breakfast about an hour ago, and had been persistent since then, despite EMS administering aspirin and nitroglycerin. Pre-intervention.

CAD 52

CAD ACS STEMI Coronary 52

Dr. Smith's ECG Blog

JULY 31, 2018

She had zero CAD risk factors. Next day, t he patient was taken for an angiogram and found to have a reperfused LAD lesion with good flow that appeared to the angiographer as if it was a spontaneous coronary artery dissection. What is Spontaneous Coronary Artery Dissection (SCAD)? hours of substernal chest pressure.

Coronary 52

Coronary ACS STEMI OR 52

Dr. Smith's ECG Blog

NOVEMBER 3, 2023

A man in his 70s with past medical history of hypertension, dyslipidemia, CAD s/p left circumflex stent 2 years prior presented to the ED with worsening intermittent exertional chest pain relieved by rest. The De Winter ECG pattern: morphology and accuracy for diagnosing acute coronary occlusion: systematic review. As per Drs.

ACS 82

ACS Coronary ALS CAD 82

Dr. Smith's ECG Blog

NOVEMBER 30, 2022

Hospital Course The patient was taken emergently to the cath lab which did not reveal any significant coronary artery disease, but she was noted to have reduced EF consistent with Takotsubo cardiomyopathy. Just because you don't see hemodynamically significant CAD on angiogram does not mean it is not OMI. It can only be seen by IVUS.

Emergency Department 52

Emergency Department E-9-1-1 Coronary STEMI 52

Dr. Smith's ECG Blog

MARCH 19, 2023

Concerning history, known CAD" Recorded 2 hours after pain onset: What do you think? To realize — Assessment of ECG #1 is complicated by knowing: i ) That today’s patient has a history of documented CAD ; and , ii ) The lack o f a prior tracing for comparison at the time the initial ECG was interpreted. What Do We Learn from ECG #3 ?

STEMI 52

STEMI Coronary CAD OR 52

Dr. Smith's ECG Blog

JUNE 18, 2013

I want all to know that, with the right mind preparation, and the use of the early repol/LAD occlusion formula, extremely subtle coronary occlusion can be detected prospectively, with no other information than the ECG. This was my thought: if this patient presented to the ED with chest pain, then this is an LAD occlusion. Asymmetric.

STEMI 52

STEMI Coronary ALS CAD 52

Dr. Smith's ECG Blog

JUNE 12, 2017

He had a family history of early CAD and occasional drug and tobacco use. The ECG was alarming to the ED physician who did indeed review it. However, subtle coronary occlusion may be completely missed by the computer and called "normal." It is not yet available, but this is your way to get on the list. References : 1.

STEMI 52

STEMI CAD Coronary ALS 52

Dr. Smith's ECG Blog

JANUARY 1, 2013

A middle aged male with no h/o CAD presented with one week of crescendo exertional angina, and had chest pain at the time of the first ECG: Here is the patient's previous ECG: Here is the patient's presenting ED ECG: There is isolated ST depression in precordial leads, deeper in V2 - V4 than in V5 or V6. There is no ST elevation.

STEMI 52

STEMI ACS Coronary CAD 52

Dr. Smith's ECG Blog

SEPTEMBER 4, 2016

Is this due to coronary occlusion? The medic activated the cath lab but was refused by the interventionalist, who did not believe that this ECG represented acute coronary occlusion. But what we truly care about is coronary occlusion, for which STEMI is just a surrogate that is only about 75% sensitive for occlusion. Look at aVF.

E-9-1-1 40

E-9-1-1 STEMI Coronary CAD 40

Dr. Smith's ECG Blog

NOVEMBER 19, 2016

The patient was brought directly to the cardiac catheterization lab for PCI, bypassing the ED. The diagnostic coronary angiogram identified only minimal coronary artery disease, but there was a severely calcified, ‘immobile’ aortic valve. In the cath lab, the patient’s blood pressure remained low.

Coronary 40

Coronary ACS ALS STEMI 40

Dr. Smith's ECG Blog

DECEMBER 13, 2019

They found non-obstructive CAD, with only a 20% stenosis of OM2 and 10% RCA. IF , on the other hand — the patient with new chest pain is older and lacks predisposing viral symptoms — then acute pericarditis becomes a rare diagnosis in an ED setting. A repeat ECG was performed and cardiology was re-consulted: Roughly unchanged.

E-9-1-1 52

E-9-1-1 ACS Coronary CAD 52

Dr. Smith's ECG Blog

JULY 11, 2019

Cardiology was called and the patient was taken for urgent catheterization with the time from ED arrival to cath about 1 hour and 45 minutes. He also had non-acute CAD of the RCA (50%) and LCX (50%). I focus my att ention on the interpretation of the initial ED tracing ( = E CG # 1 in Figure-1 ).

STEMI 52

STEMI ACS CAD ED 52

Dr. Smith's ECG Blog

JULY 3, 2018

Submitted and written by Alex Bracey with edits by Pendell Meyers and Steve Smith Case A 50ish year old man with a history of CAD w/ prior LAD MI s/p LAD stenting presented to the ED with chest pain similar to his prior MI, but worse. Around 19 hours later, he experienced the same pain, which prompted his presentation to the ED.

ACS 52

ACS STEMI Coronary CAD 52

Dr. Smith's ECG Blog

DECEMBER 29, 2015

Case history A middle-aged woman with a history of HTN, but no prior CAD, presented to the ED with chest pain. LVH can mimic an acute anterior coronary occlusion (ACO) on the ECG. Electrocardiographic left ventricular hypertrophy in chest pain patients: Differentiation from acute coronary ischemic events. 2014.06.001.

STEMI 40

STEMI Coronary ALS CAD 40

Dr. Smith's ECG Blog

JUNE 20, 2020

A 75 yo with h/o CAD, CABG, and HFrEF presented after a syncopal episode. Discussion Thus, no further ECGs were recorded and there was no angiogram or stress test or CT coronary angiogram. There was no prodrome and no associated symptoms such as SOB or CP. The medics were worried about STEMI, as it meets STEMI criteria.

STEMI 52

STEMI CAD OR Coronary 52

Dr. Smith's ECG Blog

JUNE 2, 2023

Despite otherwise normal vital signs, she was appropriately triaged to the critical care area of the ED. They are rare and hard to find in normal practice in the ED. She denied chest pain and denied feeling any palpitations, even during her triage ECG: What do you think? There is mild-moderate tricuspid valve regurgitation.

ED 96

ED OR ALS CAD 96

EMS 12-Lead

APRIL 8, 2022

Furthermore, there was no family history of early CAD, MI, or sudden cardiac death. 1] Here is the admitting ED ECG after cancellation of Code STEMI. The patient continued to verbalize cessation of symptoms while in the ED. Cardiology admitted him for observation with plans for next-day coronary angiogram. 1] Driver, B.

STEMI 130

STEMI ALS Coronary CAD 130

EMS 12-Lead

AUGUST 14, 2022

Otherwise, no admission of CAD, HLD, or family history of sudden cardiac death. A second 12 Lead ECG was recorded: This is a testament to the dynamic nature of coronary thrombosis and thrombolysis. He described the pain as “nagging,” and equally not exacerbated by any kind of movement. But the lesion is still active!

MICU 130

MICU STEMI CAD Coronary 130

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?" Smith and Meyers answer: First , LM occlusion is uncommon in the ED because most of these die before they can get a 12-lead recorded.

Coronary 52

Coronary STEMI ACS ALS 52

EM Literature of Note

OCTOBER 18, 2021

Pervasive use of CT coronary angiography has been an unnecessary feature of the evaluation of patient with low-risk chest pain for the better part of a decade now. Patients were eligible by symptoms of an acute coronary syndrome, supported by ECG changes, an elevated troponin, or a history of ischemic heart disease.

Coronary 40

Coronary CAD ED OR 40

Dr. Smith's ECG Blog

JULY 22, 2023

An ECG was performed in the ED at 1554: Original image unavailable, this is the only recorded scanned ECG available. QOH Interpretation: The initial troponin I (older generation) at the first ED was barely positive at 0.06 She has not had a heart catheterization or after this event so the presence or absence of CAD is still unknown.

E-9-1-1 92

E-9-1-1 CAD OR STEMI 92

Dr. Smith's ECG Blog

JANUARY 9, 2023

No family history of sudden cardiac death, cardiomyopathy, premature CAD, or other cardiac issues. Repeat CT angio chest (not CT coronary, unclear what protocol) showed possible LAD aneurysm and thrombus. Acute coronary occlusion almost always occurs in patients who are well beyond their teenage years.

Coronary 52

Coronary STEMI Heart Attack OR 52

Dr. Smith's ECG Blog

OCTOBER 10, 2022

He reportedly told his family "I think I'm having a heart attack", then they immediately drove him to the ED, and he was able to ambulate into the triage area before he collapsed and became unresponsive. The value of Stat Echo in the ED for confirming clinical and ECG suspicion of acute PE cannot be overstated!

ACS 52

ACS CPR CAD Heart Attack 52

Dr. Smith's ECG Blog

SEPTEMBER 16, 2015

A middle-aged male with h/o CAD and stents presented with typical chest pressure. The patient arrived in the ED and had this ECG recorded: Interpretation? Is there likely to be fixed coronary stenosis that led to demand ischemia during pneumonia? --Was This is a very common misread. The trick is to find the end of the QRS.

STEMI 40

STEMI CPR CAD Coronary 40

Dr. Smith's ECG Blog

SEPTEMBER 29, 2018

His ED cardiac ultrasound (which is not at all ideal for detecting wall motion abnormalities, and is also very operator dependent for this finding) was significant for depressed global EF. In this study of dialysis patients with severe CAD, 77% had an abnormal resting EKG and the most common abnormality was LVH. Herzog et al.

CAD 52

CAD OR ED ALS 52

Dr. Smith's ECG Blog

MARCH 24, 2023

Written by Jesse McLaren, with comments from Smith An 85 year old with a history of CAD presented with 3 hours of chest pain that feels like heartburn but that radiates to the left arm. Use STEMI criteria to identify acute coronary occlusion: the ECG was STEMI negative 2. Below is the ECG. What do you think?

STEMI 52

STEMI Coronary CAD OR 52

Dr. Smith's ECG Blog

APRIL 8, 2016

He had significant history of CAD with CABG x5, and repeat CABG x 2 as well as a subsequent PCI of the graft to the RCA (twice) and of the graft to the Diagonal. Here is his ED ECG: There is obvious infero-posterior STEMI. A late middle-aged man presented with one hour of chest pain. Most recent echo showed EF of 60%.

STEMI 52

STEMI Plasma Defibrillator OR 52