The Skeptics' Guide to EM

NOVEMBER 25, 2023

A 12-lead electrocardiogram (ECG) demonstrates ST elevations in leads II, III, and aVF with ST depressions in leads I and aVL and the team begins transport to the nearest percutaneous coronary intervention (PCI) capable hospital. We looked at 101 STEMI patients from two rural EDs. Reference: Stopyra et al.

Heart Attack 286

Heart Attack STEMI Emergency Medical Services Coronary 286

Dr. Smith's ECG Blog

OCTOBER 1, 2023

He called EMS who brought him to the ED. ED Diagnoses: 1. The basic principles of emergency ECG interpretation in patients who present to an ED with new symptoms include the following: Respect the History. This patient in today's case was a man in his 60s with a known history of coronary disease, including prior stents.

OR 129

OR STEMI Coronary CAD 129

Core EM

JANUARY 25, 2024

The Case A 41-year-old male presents to the ED with constant palpitations for one day. Risk factors that increase the likelihood of VT include history of previous myocardial infarction, known coronary artery disease, and structural heart disease. Discussion Fascicular VT is a distinct subgroup of idiopathic VT. Brady WJ, Skiles J.

Coronary 246

Coronary Emergency Department ED OR 246

REBEL EM

SEPTEMBER 21, 2023

What Your Gut Says: The patient has a tachydysrhythmia which may be the presentation of acute coronary syndrome (ACS) even though the patient has no ischemic symptoms. Essentially, we are using the troponin assay to find patients with ACO who may be benefited by coronary interventions or risk factor modification. Cardiol Rev.

Coronary 143

Coronary ACS ED OR 143

Dr. Smith's ECG Blog

JULY 25, 2024

The patient was brought to the ED and had this ECG recorded: What do you think? But cardiac arrest is a period of near zero flow in the coronary arteries and causes SEVERE ischemia. Smith's ECG Blog ( See My Comment in the March 1, 2023 post) — DSI does not indicate acute coronary occlusion! sodium bicarbonate.

Defibrillator 113

Defibrillator Coronary Epinephrine ACS 113

Dr. Smith's ECG Blog

JANUARY 25, 2024

A 40-something with severe diabetes on dialysis and with known coronary disease presented with acute crushing chest pain. Here is his ED ECG: What do you think? As per Dr. Smith — today's patient is a 40-something year old patient with severe diabetes, renal failure and known coronary disease — who presents with “acute crushing CP”.

Coronary 79

Coronary ED OR 79

EMDocs

NOVEMBER 6, 2023

This post will focus on the key parts of the guideline that affect ED evaluation and management. Author: Brit Long, MD (@long_brit) // Reviewed by Alex Koyfman, MD (@EMHighAK) The American Heart Association 2023 Guideline for managing cardiac arrest or life-threatening toxicity due to poisoning was recently released. COR Harm, LOE B-R.

Naloxone 94

Naloxone OR Overdose BLS 94

Dr. Smith's ECG Blog

NOVEMBER 29, 2023

Both cases had an EMS ECG that was transmitted to the ED physician asking "should we activate the cath lab?" On arrival to the ED, while waiting for cath lab team, he obtained another ECG: You can now see the full voltage of the high-voltage QRS, likely with some degree of LVH. Both were awake and alert with normal vital signs.

OR 119

OR STEMI EMS ED 119

Dr. Smith's ECG Blog

APRIL 22, 2024

It was present on arrival at triage but then resolved before bed placement in the ED. This is a demonstration of how Wellens' is transient OMI : First ED ECG is Wellens' (pain free). Also see this incredible case of the use of 12-lead ST Segment monitoring. __ Case Continued The Cath lab was activated 70 minutes after ED arrival.

Coronary 120

Coronary STEMI ED OR 120

Dr. Smith's ECG Blog

MAY 20, 2024

This was sent by an undergraduate (not yet in medical school, but applying now) who works as an ED technician (records all EKGs, helps with procedures, takes vital signs) and who reads this blog regularly. They too have dense white masses consistent with coronary atherosclerosis. Edited by Smith He also sent me this great case.

CAD 126

CAD STEMI Coronary ACS 126

The Skeptics' Guide to EM

SEPTEMBER 11, 2021

He is interested and experienced in healthcare informatics, previously worked with ED-directed EMR design, and is involved in the New York City Health and Hospitals Healthcare Administration Scholars Program (HASP). She arrives in the emergency department (ED) with decreased level of consciousness and shock.

EMR 130

EMR Coronary Defibrillator Life Support 130

EMS 12-Lead

MAY 20, 2022

Additional architectural changes include systolic anterior motion of the mitral valve, endothelial dysfunction at the level of the coronary arterial bed, and ventricular diastolic dysfunction. This worried the crew of potential acute coronary syndrome and STEMI was activated pre-hospital. Below is the initial ED ECG.

Coronary 130

Coronary STEMI Firefighter ED 130

Dr. Smith's ECG Blog

MARCH 13, 2023

An ED ECG, if recorded with pain, should show LAD OMI. Smith — in the setting of a patient with new chest pain — the initial ECG in today's case ( = ECG #1 — obtained by the EMS team prior to ED arrival ) — is diagnostic of ACS ( A cute C oronary S yndrome ) until proven otherwise.

ED 52

ED ACS Coronary Paramedic 52

EMS 12-Lead

JUNE 1, 2022

He advises, however, recurrent syncopal episodes for the past six months, some of which have resulted in ED admission, yet no identifying mechanism could be determined. Steve Smith [link] @SmithECGblog A 72 y/o Male experiences a syncopal episode while seated. It’s reported that he regained consciousness after 30 seconds, approximately.

Coronary 130

Coronary ALS Firefighter OR 130

EMS 12-Lead

APRIL 21, 2022

There is appreciable STE aVR with near-global STD that appropriately maximizes in Leads II and V5, and thus suggesting a circumstance of generic, diffusely populated, circumferential subendocardial ischemia versus occlusive coronary thrombus. [1] It’s judicious, then, to arrange for coronary angiogram. Does the ECG normalize?

Coronary 130

Coronary ALS OR ACS 130

Dr. Smith's ECG Blog

AUGUST 11, 2024

The machine indicated STEMI (but it barely meets STEMI criteria, if at all) and the patient was brought to the ED: On arrival 20 minutes later the pain had reduced to 1/10 after aspirin, and the patient had repeat ECG at triage: Now the ST segments and T waves have normalized, and the only abnormality is sinus bradycardia and loss of R waves.

STEMI 76

STEMI Coronary Paramedic EMS 76

EMDocs

FEBRUARY 24, 2024

1: How to Treat Infected Kidney Stones Spoon Feed All patients with infected ureteral stones necessitate a urine culture, antibiotics, and urology consultation in the ED, with the majority requiring admission for surgical intervention. . #3: Originally published at JournalFeed , a site that provides daily or weekly literature updates.

Coronary 77

Coronary STEMI ED OR 77

Dr. Smith's ECG Blog

APRIL 2, 2024

He was unidentified and there were no records available After 7 shocks, he was successfully defibrillated and brought to the ED. Bedside ED ultrasound showed exceedingly poor global LV function, and no B lines. Here is the initial ED ECG. So a dual chamber pacer is placed with one lead through the coronary sinus to the LV.

Defibrillator 131

Defibrillator Coronary Epinephrine CPR 131

EMDocs

JANUARY 8, 2024

This post will focus on the key parts of the guideline that affect ED evaluation and management. Percutaneous coronary intervention after cardiac arrest Coronary angiography should be performed emergently for all cardiac arrest patients with suspected cardiac cause of arrest and ST-segment elevation on electrocardiogram.

Epinephrine 82

Epinephrine Defibrillator Coronary CPR 82

Dr. Smith's ECG Blog

NOVEMBER 1, 2022

The 50-something patient with history of coronary stenting and slightly reduced LV ejection fraction. which would suggest reduced rates of major adverse cardiac events with coronary artery bypass grafting." On the other hand, stable EKG over an hour in the setting of ongoing acute coronary syndrome is again unusual.

Overdose 52

Overdose OR Coronary ACS 52

EMS 12-Lead

MARCH 19, 2023

He denied any known medical history, specifically: coronary artery disease, hypertension, dyslipidemia, diabetes, heart failure, myocardial infarction, or any prior PCI/stent. Learning points 1] Acute Coronary Syndrome has many shades of clinical manifestation. Breath sounds were clear in all lung fields. No appreciable skin pallor.

Coronary 130

Coronary STEMI Paramedic Defibrillator 130

EMDocs

JULY 1, 2023

A 3-year-old male with no past medical history presents to the ED with one week of daily fevers >102°F associated with four days of rash on the trunk. We’ll keep it short, while you keep that EM brain sharp. Tomisaku Kawasaki, who noticed 50+ similar pediatric presentations between the years 1961 and 1967.

EMS 66

EMS Coronary ED OR 66

EMS 12-Lead

JULY 30, 2023

David Didlake, FF/EMT-P, AG-ACNP @DidlakeDW An elder female presented to the ED with worsening shortness of breath. She was known to have a history of poorly controlled COPD, AFib, and multivessel coronary disease. There is bradycardic Atrial Fibrillation with broad ST-depression in most leads and perceptible ST-elevation in aVR.

EMT 130

EMT EMT ACS Coronary 130

Dr. Smith's ECG Blog

SEPTEMBER 11, 2024

When the patient arrived in the ED, he was still hypotensive in 70s, slowly improving with EMS fluids. Here is the ED ECG (a photo of the paper printout) What do you think? QOH ( Q ueen O f H earts ) and Dr. Smith's former resident immediately diagnosed acute OMI — but providers in the ED thought the ECG findings "looked old".

EMS 107

EMS CPR ED Coronary 107

EMDocs

SEPTEMBER 19, 2023

On ED arrival GCS is 3, there are rapid eye movements to the right but no other apparent seizure activity. Official diagnosis requires EEG, which is not something we can typically obtain in the ED. After second dose the tonic clonic movement stop; GCS is 3, and she’s unresponsive. NCSE is likely more common than we think.

STEMI 72

STEMI Coronary Emergency Department EMS 72

EMS 12-Lead

JUNE 20, 2022

One cannot rely on this feature as a means of detecting changes – subtle, or dramatic – for volatile occlusive coronary thrombus. Here is the final ECG just prior to ED transfer. Attached below is the initial ED tracing upon hospital arrival, approximately 25 minutes after the prehospital ECG. A 12 Lead ECG was recorded.

ACS 130

ACS Coronary STEMI CAD 130

Dr. Smith's ECG Blog

JULY 7, 2024

They arrived in the ED 30 minutes later to meet the cardiology team, where an ECG was repeated: Again no STEMI criteria, and there has been improvement in the deWinter and swirl pattern. First trop was 7,000ng/L (normal 25% of ‘Non-STEMI’ patients with delayed angiography have the exact same pathology of acute coronary occlusion.

STEMI 70

STEMI Coronary ALS OR 70

The Skeptics' Guide to EM

JANUARY 18, 2020

Date: January 16th, 2020 Reference: Troponin Testing and Coronary Syndrome in Geriatric Patients With Nonspecific Complaints: Are We Overtesting? Date: January 16th, 2020 Reference: Troponin Testing and Coronary Syndrome in Geriatric Patients With Nonspecific Complaints: Are We Overtesting? Reference: Wang et al.

ACS 130

ACS Coronary Emergency Department OR 130

Dr. Smith's ECG Blog

JANUARY 27, 2024

Old ‘NSTEMI’ A history of coronary artery disease and a stent to the same territory further increases pre-test likelihood of acute coronary occlusion, including in-stent thrombosis. So the patient had a transient acute coronary occlusion that spontaneously reperfused but is at risk for reocclusion. Deutch et al.

STEMI 104

STEMI Coronary ACS ED 104

ALiEM

FEBRUARY 9, 2024

Encourage your ED to set up an algorithm that you can follow based on your laboratory’s assay. Low-risk patients do not routinely require stress testing in the ED. You (or someone in your department) needs to know which assay your ED has, and use the appropriate values for that assay.

E-9-1-1 276

E-9-1-1 ED Coronary ALS 276

Dr. Smith's ECG Blog

DECEMBER 11, 2023

The neighbor recorded a systolic blood pressure again above 200 mm Hg and advised her to come to the ED to address her symptoms. For the same reason, you should not delay coronary angiography because pain resolves with morphine. She contacted her neighbor, a nurse, for help. The patient presented to triage at around 10 PM. At midnight.

E-9-1-1 125

E-9-1-1 ACS Coronary STEMI 125

Dr. Smith's ECG Blog

DECEMBER 19, 2023

The commonest causes of MINOCA include: atherosclerotic causes such as plaque rupture or erosion with spontaneous thrombolysis, and non-atherosclerotic causes such as coronary vasospasm (sometimes called variant angina or Prinzmetal's angina), coronary embolism or thrombosis, possibly microvascular dysfunction. This is not the case.

E-9-1-1 122

E-9-1-1 Coronary ACS BLS 122

EMS 12-Lead

AUGUST 14, 2022

A second 12 Lead ECG was recorded: This is a testament to the dynamic nature of coronary thrombosis and thrombolysis. Here the ST segments are not so deep, nor are the T waves so wide and bulky, because of improved coronary flow at the level of the occlusion. But the lesion is still active! However, when the Troponin I returned 8.4

STEMI 130

STEMI MICU CAD Coronary 130

Dr. Smith's ECG Blog

JUNE 21, 2023

Below is the version standardized by PM Cardio app Meyers interpretation: Findings are specific for posterior (and also likely inferior) wall transmural acute infarction, most likely due to acute coronary occlusion (OMI). There is a relatively normal QRS yet there is STD maximal in V2-V4, which resolves from V4 to V6.

STEMI 96

STEMI Coronary Defibrillator EMS 96

Dr. Smith's ECG Blog

JUNE 27, 2024

Here was his initial ED ECG: Formal interpretation by interventional cardiologist: There is "Non-diagnostic" ST Elevation in V2-V4 and aVL. The proof of this is that only 5% of patients enrolled had acute coronary occlusion. Coronary Angiography after Cardiac Arrest without ST-Segment Elevation. This study failed to do so.

Defibrillator 94

Defibrillator STEMI Coronary ALS 94

Dr. Smith's ECG Blog

APRIL 17, 2023

One case sent by Dr. Sean Rees MD, written by Pendell Meyers, other case by Sam Ghali and Steve Smith Take a look at these two ECGs below from two patients in the ED, first without any clinical context. Full case details and outcomes are below. Case 1: Case 2: Case 1: What do you think? QOH: "Not OMI, High confidence." In this case it is OMI.

OR 52

OR STEMI ACS Emergency Department 52

The Skeptics' Guide to EM

APRIL 10, 2021

JAMA Intern Med 2021 Case: A 60-year-old man presents to the emergency department (ED) after his wife found him to be drowsy and confused at home. On arrival to the ED his vitals are normal aside from a decreased level of consciousness and he is found to have a serum sodium concentration of 118 mmol/L.

Emergency Department 130

Emergency Department Coronary ED OR 130