Dr. Smith's ECG Blog

NOVEMBER 4, 2022

His response: “subendocardial ischemia. Smith : It should be noted that, in subendocardial ischemia, in contrast to OMI, absence of wall motion abnormality is common. With the history of Afib, CTA abdomen was ordered to r/o mesenteric ischemia vs ischemic colitis vs small bowel obstruction. Anything more on history?

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Ischemia STEMI Stenosis Chest Pain 52

EMS 12-Lead

JULY 24, 2023

It should be known that each category can easily manifest the generic subendocardial ischemia pattern. In general, subendocardial ischemia is a consequence of global supply-demand mismatch that usually ameliorates upon addressing, and mitigating, the underlying cause. What’s interesting is that the ECG can only detect ischemia.

Angina 52

Angina Ischemia Coronary Angiogram Stenosis 52

Dr. Smith's ECG Blog

DECEMBER 18, 2022

The differential is: Posterolateral OMI or subendocardial ischemia The distinction between posterior OMI and subendocardial ischemia can be important and sometimes difficult. Ischemic ST depression includes posterior OMI and subendocardial ischemia. Her prior ECG on file is shown below: What are your next steps?

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Chest Pain Ischemia Aortic Aortic valve 40

Dr. Smith's ECG Blog

SEPTEMBER 4, 2016

He had a previous MI with cardiac arrest 2 years prior. Down-up T-waves in inferior leads are almost always reciprocal to ischemia in the territory underlying aVL. This is not normal and is a tip off that there is posterior ischemia accompanying the ischemia in aVL. This ECG is diagnostic of ischemia.

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Ischemia Chest Pain STEMI Stenosis 40

Dr. Smith's ECG Blog

AUGUST 19, 2023

They had had twice the rate of cardiac arrest and twice the in-hospital mortality[1] In another study of patients diagnosed with STEMI, those on dialysis experienced delayed reperfusion and double the mortality.[2] They were less likely to have STEMI on ECG, and more likely to be initially diagnosed as non-ACS.

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Chest Pain STEMI Myocardial Infarction Blog 98

Ken Grauer, MD

OCTOBER 27, 2023

My Immediate Impression — was that this elderly woman with a several week history of symptoms would most likely leave the hospital with a pacemaker. This suggests ischemia of uncertain duration. Unfortunately, before this could be accomplished — the patient went into cardiac arrest.

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Blog Pacemaker Bradycardia Arrhythmia 100

Dr. Smith's ECG Blog

NOVEMBER 30, 2022

Another ECG was recorded 5 minutes later just before arrival at the hospital: Similar The patient was transported to a nearby suburban hospital with PCI capabilities while my partner cared for her. It is apparently fortunate that she had a cardiac arrest; otherwise, her ECG would have been ignored.

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Plaque Chest Pain Thrombosis Stenosis 52

Ken Grauer, MD

MARCH 23, 2023

The 12-lead ECG and long lead II rhythm strip shown in Figure-1 — was obtained from a previously healthy, elderly woman who collapsed in the hospital parking lot. A series of cardiac arrhythmias were seen during the course of her resuscitation — including the interesting arrhythmia shown in the long lead II of Figure-1.

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Blog Tachycardia Arrhythmia Atrial Flutter 78

Dr. Smith's ECG Blog

NOVEMBER 28, 2022

She was discharged after a short hospitalization with oncology and cardiology follow-up. At our hospital, I think all of our docs would want to place a pigtail catheter in the ED, under ultrasound guidance and not wait for cardiology to take the patient to the cath lab. A repeat POCUS showed resolution of her pericardial effusion.

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Tachycardia Pericarditis Ultrasound Blood Pressure 40

Cardiology Update

MARCH 5, 2024

In the ISCHEMIA (International Study of Comparative Health Effectiveness with Medical and Invasive Approaches) trial, researchers examined the risk of ischemic events in patients with stable coronary artery disease. years, with 57.1% occurring within 30 days after CABG. Original article: Redfors B et al.

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Coronary Artery Disease Ischemia Coronary Artery Bypass Graft Myocardial Infarction 116

Dr. Smith's ECG Blog

NOVEMBER 12, 2020

3 studied 416 patients hospitalized with COVID in China, of whom 82 had an initial cTn(I) above the upper reference limit. Association of Cardiac Injury With Mortality in Hospitalized Patients With COVID-19 in Wuhan, China. Cardiac troponin I in patients with coronavirus disease 2019 (COVID-19): Evidence from a meta-analysis.

Cardiac Arrest 52

Cardiac Arrest COVID-19 Myocardial Infarction Cardiogenic Shock 52

Dr. Smith's ECG Blog

OCTOBER 20, 2013

This ECG is diagnostic of diffuse subendocardial ischemia. What is the utility of a head CT in cardiac arrest? We found intracranial hemorrhage in 2% of non-traumatic cardiac arrest patients, and in 4 others the presence of cerebral edema changed management. We studied this and published the abstract below in 2010.

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Cardiac Arrest STEMI Hemorrhage Hospital 52

Dr. Smith's ECG Blog

OCTOBER 10, 2022

In terms of ischemia, there is both a signal of subendocardial ischemia (STD max in V5-V6 with reciprocal STE in aVR) AND a signal of transmural infarction of the inferior wall with Q wave and STE in lead III with reciprocal STD in I and aVL. He had multiple cardiac arrests with ROSC regained each time.

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Cardiac Arrest Chest Pain Embolism Pulmonary 52

Dr. Smith's ECG Blog

OCTOBER 25, 2023

A prior ECG was available for comparison: Normal One might be tempted to interpret the ST depression as ischemia, but as Smith says, "when the QT is impossibly long, think of hypokalemia and a U-wave rather than T-wave." The patient was admitted to the ICU for close monitoring and electrolyte repletion and had an uneventful hospital course.

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Chest Pain Ischemia Cardiac Arrest Blog 123

Dr. Smith's ECG Blog

OCTOBER 20, 2024

The first task when assessing a wide complex QRS for ischemia is to identify the end of the QRS. The ST segment changes are compatible with severe subendocardial ischemia which can be caused by type I MI from ACS or potentially from type II MI (non-obstructive coronary artery disease with supply/demand mismatch). What do you think?

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Cardiogenic Shock Ischemia Chest Pain Cardiac Arrest 128

Dr. Smith's ECG Blog

JUNE 23, 2024

He was intubated in the field and sedated upon arrival at the hospital. This was interpreted by the treating clinicians as not showing any evidence of ischemia. However, he did not remember much from the day of the arrest. At his family's request, he was transferred to a hospital closer to his home to continue care.

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Chest Pain Cardiac Arrest Sudden Cardiac Death Blog 118

Dr. Smith's ECG Blog

MAY 3, 2024

When I was shown this ECG, I said it looks like such widespread ischemia that is might be a left main occlusion, or LM ischemia plus circumflex occlusion (high lateral and posterior OMI). In fact, most do not make it to the hospital alive, which explains why only a tiny percent of OMI are due to full LM occlusion.

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Cardiogenic Shock Cardiac Arrest Hospital Ischemia 126

Dr. Smith's ECG Blog

APRIL 8, 2016

If there is polymorphic VT with a long QT on the baseline ECG, then generally we call that Torsades, but Non-Torsades Polymorphic VT can result from ischemia alone. If cardiac arrest from hypokalemia is imminent (i.e., As I indicated above, in our cardiac arrest case, after pushing 40 mEq, the K only went up to 4.2

STEMI 52

STEMI Myocardial Infarction Cardiac Arrest Arrhythmia 52

Dr. Smith's ECG Blog

JULY 21, 2024

The patient was extubated on Day-3 of the hospital stay. The stay in the cardiac intensive care unit (CICU) was further complicated by sepsis, delirium, GI bleeding, and anuric renal failure with need for renal replacement therapy. There is no definite evidence of acute ischemia. (ie,

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Arrhythmia Cardiogenic Shock Bradycardia Defibrillator 131

Wellnest

DECEMBER 21, 2022

Patients use them to observe their heart activity by themselves when they are not in the hospital. Though their accuracy is not as high as a hospital ECG machine, they are very beneficial in detecting problems in any medical emergency and providing information about long-term heart activity.

Cardiac Arrest 52

Cardiac Arrest Heart Attack Heart attacks Atrial Fibrillation 52

Ken Grauer, MD

JUNE 6, 2023

Part of the ST depression with deep T wave inversion in the lateral chest leads clearly reflects LV "strain" from the marked LVH — but despite the very large QRS amplitudes, this ST-T wave appearance looks disproportionate, suggesting at least a component of ischemia. He could not be resuscitated.

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Blog Pulmonary Hypertension Aortic 78

Dr. Smith's ECG Blog

NOVEMBER 11, 2022

The ECG is diagnostic of LAD occlusion (or even left main occlusion possibly), with the classic pattern of RBBB and LAFB with huge concordant STE in V1-V2, I, and aVL, with reciprocal depression in most other leads (and/or a component of subendocardial ischemia pattern). Plus recommendations from a 5-member panel on cardiac arrest.

Chest Pain 52

Chest Pain Cardiogenic Shock Tachycardia Ischemia 52

DAIC

APRIL 8, 2024

Møller, MD , professor in the Department of Cardiology at the Odense University Hospital in Denmark, consultant at the cardiac intensive care unit of Copenhagen University Hospital Rigshospitalet and the study’s lead author. “I I think this will be a routine device that will be used in these desperately ill patients.”

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Heart Attack Heart attacks Cardiogenic Shock Catheterization Laboratory 52

Dr. Smith's ECG Blog

SEPTEMBER 20, 2018

Written by Pendell Meyers, edits by Steve Smith A man in his 60s with history of hypertension and MI 10 years ago, with PCI, presented to an outside hospital complaining of chest pain that started while mowing the lawn. His chest pain was located in the central chest, non-radiating, and associated with diaphoresis, nausea, and vomiting.

Chest Pain 52

Chest Pain STEMI Cardiac Arrest Aneurysm 52

DAIC

JANUARY 23, 2024

alone, more than 800,000 of these people are at risk of MI and for approximately 200,000 of them, this may well be their second life-threatening cardiac event. Nearly 20% of those people who have had a MI will be hospitalized again within five years due to a second event.5 4 In the U.S. 12 Colchicine, 0.5 34 Colchicine, 0.5

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Cardiovascular Disease Heart Attack Heart attacks Coronary Artery Disease 111

Dr. Smith's ECG Blog

MAY 5, 2022

A few days later an ECG was repeated which showed normal sinus rhythm with no further hyperkalemia findings: After a 3-week hospitalization for acute renal failure, hyperkalemia, and compartment syndrome, the patient was discharged to acute rehab. Steve, what do you think of this ECG in this Cardiac Arrest Patient?"

Chest Pain 52

Chest Pain Bradycardia Cardiac Arrest STEMI 52

Journal of the American Heart Association

FEBRUARY 27, 2024

We evaluated the primary outcome (cardiovascular death, myocardial infarction, or hospitalization for unstable angina, heart failure, or resuscitated cardiac arrest) and other end points, by sex, in 1168 (22.6%) women and 4011 (77.4%) men. of invasive‐assigned women revascularized versus 81.2%

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Ischemia Coronary Artery Disease Myocardial Infarction Outcomes 45

Dr. Smith's ECG Blog

APRIL 16, 2025

She survived the hospitalization, but long term outcome is not available. Discussion: This patient was very lucky that she had a doctor who understood her initial ECG, advocated for her, performed serial ECGs, and that her serial ECGs happened to have temporary lack of RBBB which reduces the complexity of the ischemia interpretation.

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Chest Pain STEMI Tachycardia Cardiac Arrest 68