Dr. Smith's ECG Blog

OCTOBER 4, 2010

He arrived in the emergency department hemodynamically stable. ACS would be highly unusual in a young athlete, and given the information on his race bib, one must first suspect that the abnormal ST elevation is due to demand ischemia, not ACS. On his bib it stated that he had a congenital heart disorder.

ACS 52

ACS Defibrillator Epinephrine STEMI 52

EMS 12-Lead

APRIL 14, 2022

It should be emphasized here that this is a presentation of high-pretest probability for Acute Coronary Syndrome (ACS). There is mixed overlap of ST-segment elevation (STE), ST-segment depression (STD), Hyperacute T waves (HATW), and deWinter pattern (which the ACC regards as a STEMI-equivalent but is better suited under the blanket of OMI).

ACS 130

ACS Paramedic Coronary ALS 130

ACEP Now

DECEMBER 11, 2023

Many conditions outside of acute coronary syndrome (ACS) mimic ST-elevation myocardial infarction (STEMI), but only a handful of cases have reported ST-elevations (STE) in the setting of pancreatic inflammation where underlying ACS was excluded. Mimics of ST elevation myocardial infarction (STEMI). Click to enlarge.)

STEMI 52

STEMI Coronary ACS Critical Care 52

Dr. Smith's ECG Blog

OCTOBER 12, 2024

Written by Bobby Nicholson What do you think of this “STEMI”? A man in his 90s with a history of HTN, CKD, COPD, and OSA presented to the emergency department after being found unresponsive at home. Vital signs were within normal limits on arrival to the Emergency Department. Blood glucose was not low at 162 mg/dL.

STEMI 116

STEMI Coronary Emergency Department ACS 116

Dr. Smith's ECG Blog

JUNE 19, 2023

Written by Kaley El-Arab MD, edits by Pendell Meyers and Stephen Smith A 61-year-old male with hypertension and hyperlipidemia presented to the emergency department for chest tightness radiating to the back of his neck that has been intermittent for the past day or two. It is true this ECG does not meet STEMI criteria (there is 1.0

STEMI 52

STEMI ACS Coronary Defibrillator 52

Dr. Smith's ECG Blog

AUGUST 9, 2024

Written by Colin Jenkins and Nhu-Nguyen Le with edits by Willy Frick and by Smith A 46-year-old male presented to the emergency department with 2 days of heavy substernal chest pain and nausea. The receiving emergency physician consulted with interventional cardiology who stated there was no STEMI. Is there STEMI?

STEMI 107

STEMI Coronary Heart Attack ACS 107

Dr. Smith's ECG Blog

SEPTEMBER 3, 2023

This was sent by anonymous The patient is a 55-year-old male who presented to the emergency department after approximately 3 to 4 days of intermittent central boring chest pain initially responsive to nitroglycerin, but is now more constant and not responsive to nitroglycerin. It is unknown when this pain recurred and became constant.

Defibrillator 135

Defibrillator Coronary STEMI CPR 135

Dr. Smith's ECG Blog

NOVEMBER 30, 2022

The fire department, who operate at an EMT level in this municipality, arrived before us and administered 324 mg of baby aspirin to the patient due to concern for ACS. Upon arrival to the emergency department, a senior emergency physician looked at the ECG and said "Nothing too exciting." From Gue at al.

Emergency Department 52

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

Dr. Smith's ECG Blog

NOVEMBER 4, 2022

This has been termed a “STEMI equivalent” and included in STEMI guidelines, suggesting this patient should receive dual anti-platelets, heparin and immediate cath lab activation–or thrombolysis in centres where cath lab is not available. His response: “subendocardial ischemia. Anything more on history? POCUS will be helpful.”

Coronary 52

Coronary ACS STEMI ALS 52

EMS 12-Lead

APRIL 21, 2022

STEMI was activated and the patient went to Cath on arrival. Such aggressive investigation was particularly warranted in this case because of symptoms compatible with ACS, as well as an equally frightening revelation of family history. Conjecture aside, I believe the lesson here, ultimately, is serial ECG’s. link] [1] Mirand, D.

Coronary 130

Coronary ALS OR ACS 130

Dr. Smith's ECG Blog

DECEMBER 26, 2020

Is this inferor STEMI? Atrial Flutter with Inferior STEMI? Inferolateral ST elevation, vomiting, and elevated troponin The treating team did not identify the flutter waves and they became worried about possible "STEMI" (despite the unusual clinical scenario). The EM provider asked if the cardiologist thought it was a "STEMI."

STEMI 52

STEMI ACS Coronary Emergency Department 52

Dr. Smith's ECG Blog

OCTOBER 20, 2013

Note that they finally have laid to rest the new or presumably new LBBB as a criteria for STEMI. Note that they finally have laid to rest the new or presumably new LBBB as a criteria for STEMI. Also note that they allow ST depression c/w posterior MI to be a STEMI equivalent. Kurkciyan et al.

STEMI 52

STEMI Coronary ACS Emergency Department 52

ECG & Echo Learning

JANUARY 18, 2023

STEMI , ST-segment elevation acute myocardial infarction ). 1 Initial diagnosis of STEMI ECG Management Recommendation Level of evidence A 12-lead ECG should be interpreted immediately (within 10 minutes) at first medical contact. I B Designated PCI centres should provide angiography and reperfusion 24/7 without delay.

STEMI 40

STEMI Coronary OR Defibrillator 40

ACEP Now

AUGUST 12, 2024

A 35-year-old male presented to the emergency department complaining of chest pain that started 1.5 5 Studies looking at this phenomenon in the emergency department setting for patients presenting with chest pain are lacking. Dr. Young is an emergency physician at Saint Francis Hospital and Medical Center, Hartford, Conn.

Emergency Department 52

Emergency Department STEMI ACS ED 52

Dr. Smith's ECG Blog

AUGUST 9, 2019

But if they do present: The very common presentation of diffuse STD with reciprocal STE in aVR is NOT left main occlusion , though it might be due to sub total LM ACS, but is much more often due to non-ACS conditions, especially demand ischemia. All are, however, clearly massive STEMI. TIMI 0/1 flow).(61,62)

Coronary 52

Coronary STEMI ACS ALS 52

Dr. Smith's ECG Blog

JULY 3, 2018

While in the emergency department, he undergoes an additional ECG: 00:49 - Not much change Second ECG with measurements and calculations Magnified view of second ECGs measurements and calculation It is still "negative" for LAD occlusion (less than 23.4) Despite having acute coronary occlusion by cath, his ECGs never met STEMI criteria.

ACS 52

ACS STEMI Coronary CAD 52

Dr. Smith's ECG Blog

NOVEMBER 26, 2015

52-year-old lady presents to the Emergency Department with 2 hours of chest pain, palpitations & SOB. These elevations meet STEMI criteria ( ≥ 1mm in 2 contiguous leads). In STEMI, they are generally upright and large in proportion to the QRS. So this argues against acute STEMI. This case is tough.

STEMI 52

STEMI ACS Emergency Department OR 52

Dr. Smith's ECG Blog

OCTOBER 25, 2023

A man in his 60s with a history of severe alcohol use disorder and epidural abscess on long-term ciprofloxacin presented to the emergency department after an episode of syncope while standing in line at a grocery store. Moreover, the Queen is only supposed to be used with a high pretest probability of ACS/OMI. Is it STEMI?

Overdose 124

Overdose ACS OR ICU 124

Dr. Smith's ECG Blog

APRIL 17, 2023

He had no symptoms of ACS. The remainder of his Emergency Department stay was uneventful. The Queen of Hearts correctly says: Smith : Why is this ECG which manifests so much ST Elevation NOT a STEMI (even if it were a 60 year old with chest pain)? Physician interpretation: "No STEMI." Physician: "No STEMI."

OR 52

OR STEMI ACS Emergency Department 52

Dr. Smith's ECG Blog

MARCH 20, 2023

I finished my residency of Emergency Medicine and I’m working at a great Emergency Department here in Brazil. Since then, I started looking for OMI EKG findings and not just STEMI. mm in lead I, thus not STEMI criteria) and was finally understood by the cardiologist.

STEMI 52

STEMI ACS CAD ED 52

Dr. Smith's ECG Blog

OCTOBER 2, 2021

Because the patient's pain had resolved completely and cardiology had declined immediate intervention, the patient was admitted but continued to board in the emergency department. Approximately 4 hours after arrival, the patient was re-examined by the emergency physician. There is no age cut-off for ACS. 1] Wereski, R.,

OR 52

OR ACS STEMI Coronary 52

Dr. Smith's ECG Blog

AUGUST 26, 2019

She was brought to the Emergency Department and this ECG was recorded while she was still feeling nauseous but denied chest pain, shortness of breath, or other symptoms: What do you think? I wouldn't activate the lab for this EKG alone, but if the patient is clinically compatible with ACS you could call a heart alert.

STEMI 52

STEMI Coronary OR ED 52

Dr. Smith's ECG Blog

OCTOBER 3, 2018

The Smith-Modified Sgarbossa Criteria Accurately Diagnose Acute Coronary Occlusion in Emergency Department Patients With Ventricular Paced Rhythm. And, in cases like the elderly patient with new-onset chest pain presented here — definitive diagnosis of acute STEMI is sometimes deceptively easy. Dodd1 , Deborah L.

Coronary 52

Coronary STEMI Paramedic ALS 52

Dr. Smith's ECG Blog

NOVEMBER 3, 2017

These kinds of cases were excluded from the study as obvious anterior STEMI. --QTc Case 1 Acute anterior STEMI from LAD occlusion, or Benign Early Repolarization (BER)? Appropriately, the physicians repeated the ECG 20 minutes later and it was diagnostic of anterior STEMI. QTc is the computer measurement. 100% LAD occlusion.

STEMI 52

STEMI Coronary OR ALS 52

Dr. Smith's ECG Blog

NOVEMBER 12, 2020

Clin Chem [Internet] 2020;Available from: [link] Smith mini-review: Troponin in Emergency Department COVID patients Cardiac Troponin (cTn) is a nonspecific marker of myocardial injury. 12 All STEMI patients had very high cTn typical of STEMI (cTnT > 1.0 of Cardiology AC, Others. Available from: [link] 9.

E-9-1-1 52

E-9-1-1 STEMI Coronary ALS 52

Dr. Smith's ECG Blog

JANUARY 23, 2023

Submitted and written by Megan Lieb, DO with edits by Bracey, Smith, Meyers, and Grauer A 50-ish year old man with ICD presented to the emergency department with substernal chest pain for 3 hours prior to arrival. The screening physician ordered an EKG and noted his ashen appearance and moderate distress. Triage EKG: What do you think?

ACS 52

ACS Coronary Defibrillator STEMI 52

Dr. Smith's ECG Blog

FEBRUARY 5, 2019

The clinicians later stated they had had no suspicion of ACS, but that the faculty wanted a troponin anyway. PCI mid LCx So this is an OMI (Occlusion Myocardial Infarction), but not a STEMI Echo: Decreased left ventricular systolic performance, mild/moderate. Angiogram: LM 30% ostial. distal stent patent. Sandoval Y. Murakami M.

STEMI 52

STEMI Emergency Department ED OR 52

Dr. Smith's ECG Blog

JUNE 8, 2023

STEMI negative : the EMS automated interpretation read, “STEMI negative. According to the STEMI paradigm, the patient doesn’t have an acute coronary occlusion and doesn't need emergent reperfusion, so the paramedics can bring them to the ED for assessment, without involving cardiologists. Sinus bradycardia.”

STEMI 86

STEMI Coronary Paramedic ALS 86

Dr. Smith's ECG Blog

AUGUST 10, 2023

Case submitted and written by Dr. Mazen El-Baba and Dr. Emily Austin, with edits from Jesse McLaren A 50 year-old patient presented to the Emergency Department with sudden onset chest pain that began 14-hours ago. This doesn’t meet STEMI criteria so in the current paradigm there’s no urgency to getting an angiogram.

STEMI 98

STEMI ACS Emergency Department ED 98

REBEL EM

FEBRUARY 3, 2025

Background: ST-segment elevation myocardial infarction (STEMI) is a critical condition requiring rapid diagnosis and intervention. While ECGs play a central role in detecting STEMI, misinterpretations often occur, leading to unnecessary catheterization or missed diagnoses. Paper: Lee SH, Jeon KL, Lee YJ, Ko YG, Choi D, Hong MK, et al.

STEMI 79

STEMI Coronary Emergency Department ALS 79

Dr. Smith's ECG Blog

NOVEMBER 10, 2024

The is very small STE in III and aVF which do not meet STEMI criteria, hyperacute T waves, reciprocal TWI in aVL, and maximal STD in V2-V3 showing posterior OMI. The ECG was transmitted to the Emergency Medicine physician who recognized inferior and posterior OMI findings, and confirmed that the patient has potential ACS symptoms.

STEMI 81

STEMI OR ED EMS 81

Dr. Smith's ECG Blog

DECEMBER 31, 2024

She presented to the Emergency Department at around 3.5 But thankfully, when the clinical context is clearly and highly concerning for ongoing ischemia from ACS, this distinction doesn't matter much. Final Diagnosis: "STEMI" (of course, as you can see in the ECGs above, this is not true, by definition this was NSTEMI.

Coronary 119

Coronary ACS STEMI CAD 119

Dr. Smith's ECG Blog

JANUARY 28, 2025

His first EKG is shown below, with a lead II rhythm strip: EKG 1, 1645 A provisder who is looking for STEMI would not see much in this EKG. It is possible that the T waves in this EKG are of an intermediate morphology between full-blown STEMI and inferior reperfusion. This is the classic morphology of hyperacute T waves.

STEMI 105

STEMI ED ACS Emergency Department 105

Dr. Smith's ECG Blog

MARCH 3, 2025

A 69 year old woman with a history of hypertension presented to the emergency department by EMS for evaluation of chest pain and shortness of breath. Supply-demand mismatch can cause ST Elevation (Type 2 STEMI). Also see these posts of Type II STEMI. Truly, the Marquette 12 SL algorithm correctly identifies this STEMI.

E-9-1-1 74

E-9-1-1 Coronary STEMI Emergency Department 74

Dr. Smith's ECG Blog

FEBRUARY 26, 2025

He presented to the emergency department for evaluation. 50% of LAD STEMI have Q-waves by one hour. Smith : In limb leads, the ST vector is towards lead II (STE lead II STE lead III, which is more likely with pericarditis than with STEMI). Patients with suspected ACS should be evaluated with echocardiography.

STEMI 89

STEMI ALS OR Coronary 89