Dr. Smith's ECG Blog

MAY 30, 2023

A 50-something man presented in shock with severe chest pain. 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. His prehospital ECG was diagnostic of inferior posterior OMI. He appeared gray in color, with cool skin.

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Chest Pain Myocardial Infarction STEMI Cardiogenic Shock 97

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. He described his chest pain as pleuritic and reported that it started the day prior while swinging a golf club. His pain suddenly became much worse in the ED and he became acutely diaphoretic, dizzy, and hypotensive.

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Chest Pain Pericarditis Pacemaker STEMI 60

Dr. Smith's ECG Blog

NOVEMBER 10, 2017

This was sent to me by a former resident from a community hospital: A middle-aged woman complained of chest pain and was seen in triage. The computer interpreted the ECG (GE Marquette 12 SL) as: "Sinus Bradycardia. Here it is: Computer interpretation: "Sinus bradycardia. She had a ECG recorded. Normal ECG."

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Chest Pain Bradycardia Technology Electrocardiogram 52

Dr. Smith's ECG Blog

JUNE 5, 2024

The patient presented due to chest pain that was typical in nature, retrosternal and radiating to the left arm and neck. He denied any exertional chest pain. It is unclear if the patient was pain free at this time. He has a medical hx notable for hypertension, hyperlipidemia and previous tobacco use disorder.

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Chest Pain Blog Cardiac Arrest Cardiomyopathy 122

Dr. Smith's ECG Blog

MAY 6, 2019

The patient presented with chest pain. I was taught that the tell-tale sign of ischemia vs an electrical abnormality was in the hx, i.e. chest pain for the ischemia and potential syncope for brugada. Only 5-18% of ED patients with chest pain have a myocardial infarction of any kind. Bradycardia.

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Chest Pain STEMI Ischemia Myocardial Infarction 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. At this time he reported ongoing chest pain and was given aspirin and nitroglycerin.

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Chest Pain Blog Stenosis Myocardial Infarction 52

Dr. Smith's ECG Blog

OCTOBER 13, 2022

Written by Jesse McLaren, with edits from Smith and Grauer A 60 year old with no past medical history presented with two hours of chest pain radiating to the left arm, with normal vitals. Unfortunately, the reality is — that many ( most ) WPW patients who present with chest pain do not manifest intermittent preexcitation.

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Chest Pain Myocardial Infarction Ischemia STEMI 52

Dr. Smith's ECG Blog

JUNE 19, 2023

The patient’s chest pain spontaneously resolved before he was evaluated and has a repeat ECG obtained at 22:12 obtained shown below. Soon afterward, the patient’s symptoms return along with lightheadedness, bradycardia, and hypotension. It is unclear if he received aspirin at triage. This ECG is more difficult.

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Chest Pain STEMI Cardiogenic Shock Bradycardia 52

Dr. Smith's ECG Blog

JULY 5, 2023

The patient has acute chest pain. Instead — my thoughts were as follows: The rhythm is sinus , with marked bradycardia and a component of sinus arrhythmia. This was texted to me in real time. What do you think? Here was my answer: "Not ischemia. Maybe HOCM or another form of LVH. I would not activate cath lab.

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Chest Pain STEMI Congenital Heart Disease Heart Disease 52

Ken Grauer, MD

AUGUST 26, 2023

I see the following: The rhythm is sinus bradycardia at ~55-60/minute. PEARL # 2: Applying PEARL #1 to today's case — the fact that this patient's symptoms began before ECG #1 was obtained, and that his chest pain had resolved by the time ECG #1 was recorded — strongly suggests that the "culprit" artery may have spontaneously opened.

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Blog Chest Pain STEMI Ischemia 141

Dr. Smith's ECG Blog

DECEMBER 22, 2023

The patient with no prior cardiac history presented in the middle of the night with acute chest pain, and had this ECG recorded during active pain: I did not see any ischemia on this electrocardiogram. Their apparently excessive length (QT interval) is due to bradycardia. This is a case I had quite a while back.

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Chest Pain Bradycardia Blog Electrocardiogram 116

Dr. Smith's ECG Blog

JULY 30, 2023

Written by Pendell Meyers A woman in her 50s presented with acute chest pain and lightheadedness since the past several hours. Here is her triage ECG during active symptoms: What do you think? The ED physician read this as "Normal sinus rhythm. Marked ST abnormality, possible anterior subendocardial injury."

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Chest Pain Ischemia STEMI Arrhythmia 52

Dr. Smith's ECG Blog

OCTOBER 9, 2012

A middle-aged woman with a history of hypertension presented with typical chest pain. Here was her presenting ECG, with chest pain: Inferior leads show hyperacute T-waves and reciprocal STD in aVL, with a reciprocally hyperacute T-wave in aVL. Her BP was 160/80. This is all but diagnostic of inferior OMI.

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Chest Pain Bradycardia STEMI Hypertension 52

Ken Grauer, MD

OCTOBER 13, 2023

She was hemodynamically stable — and did not have chest pain, lightheadedness or syncope. Even if we stopped here — We could conclude the following: There is marked bradycardia in today's rhythm ( ie, Heart rate in the low 30s ). QUESTIONS: HOW would you interpret the rhythm in Figure-1 ? Is this " high -grade" AV block?

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Blog Arrhythmia Bradycardia Download 152

Dr. Smith's ECG Blog

DECEMBER 5, 2016

This ECG could easily be seen in an ED chest pain patient, and I have seen many) What do you think? Description Sinus bradycardia. Comment I (Smith) have seen many similar ECGs in ED chest pain patients. I have seen this innumerable times in chest pain patients in the Emergency Department.

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Chest Pain Ischemia Myocardial Infarction Bradycardia 52

Ken Grauer, MD

SEPTEMBER 22, 2023

The rhythm is sinus bradycardia at a rate just over 50/minute. Although difficult to measure ( because of marked overlap of the QRS in multiple chest leads ) — there appears to be greatly increased QRS amplitude, consistent with voltage for LVH. To improve visualization — I've digitized the original ECG using PMcardio ).

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Blog Chest Pain Bradycardia Physiology 174

Ken Grauer, MD

JUNE 2, 2023

to 1828 msec. ) — which corresponds to a variation in the rate of sinus bradycardia from 36-to-33/minute. This makes sense given that the underlying rhythm in today's case appears to be marked sinus bradycardia and arrhythmia , with a ventricular escape rhythm appearing when the SA node rate drops below 33/minute.

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Blog Bradycardia Arrhythmia Tachycardia 78

Dr. Smith's ECG Blog

OCTOBER 25, 2023

He did not have chest pain. Chest pain in high risk patient. Syncope and Bradycardia Syncope in a 20-something woman Long QT: Do not trust the computerized QT interval when the QT is long An Alcoholic Patient with Syncope Cardiac Arrest. Here is his triage ECG: What do you think? Is it STEMI? What is going on here?

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Ischemia Chest Pain Cardiac Arrest Blog 124

Dr. Smith's ECG Blog

OCTOBER 15, 2024

He arrived to the ED by helicopter at 1507, about three hours after the start of his chest pain while chopping wood around noon. He arrived to the ED by ambulance at 1529, only a half hour after the start of his chest pain around 1500 while eating. Angiography revealed a 30% nonobstructive stenosis of the mid LAD.

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Chest Pain STEMI Echocardiogram Stents 116

Dr. Smith's ECG Blog

JULY 16, 2022

This middle aged male with h/o GERD but also h/o stents presented to the ED with chest pain. The computer called "Sinus Bradycardia" only (implying that everything else is normal. The overreading Cardiologist called it only "Sinus Bradycardia" with no other findings. There is zero ST Elevation.

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Chest Pain Bradycardia Blog Critical Care 52

Dr. Smith's ECG Blog

JULY 21, 2024

The patient in today’s case is a previously healthy 40-something male who contacted EMS due to acute onset crushing chest pain. The pain was 10/10 in intensity radiating bilaterally to the shoulders and also to the left arm and neck. Written By Magnus Nossen — with edits by Ken Grauer and Smith. The below ECG was recorded.

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Arrhythmia Cardiogenic Shock Bradycardia Defibrillator 131

Dr. Smith's ECG Blog

OCTOBER 18, 2023

The chest pain quickly subsided. During the night, while on telemetry, the patient became bradycardic, with periods of isorhythmic AV dissociation (nodal escape rhythm alternating with sinus bradycardia), and there were sporadic PVCs. Are you worried about OMI in this case? His response was: "I would not call it OMI.

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Cardiac Arrest Tachycardia Cardiomyopathy Bradycardia 122

Dr. Smith's ECG Blog

OCTOBER 20, 2024

He woke up alert and with chest pain which he also had experienced intermittently over the previous few days. The history in today's case with sudden loss of consciousness followed by chest pain is very suggestive of ACS and type I ischemia as the cause of the ECG changes. What do you think?

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Cardiogenic Shock Ischemia Chest Pain Cardiac Arrest 128

Dr. Smith's ECG Blog

NOVEMBER 11, 2023

Later, I found old ECGs: 5 month prior in clinic: V5 and V6 look like OMI 9 months prior in clinic with no chest symptoms: V5 and V6 look like OMI 1 year prior in the ED with chest pain: V5 and V6 sure look like a STEMI For this ECG and chest pain in the ED, the Cath lab activated. But the angiogram was clean.

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Strokes Stroke Chest Pain Cardiomyopathy 70

Dr. Smith's ECG Blog

FEBRUARY 6, 2024

ECG of pneumopericardium and probable myocardial contusion shows typical pericarditis Male in 30's, 2 days after Motor Vehicle Collsion, complains of Chest Pain and Dyspnea Head On Motor Vehicle Collision. Gunshot wound to the chest with ST Elevation Would your radiologist make this diagnosis, or should you record an ECG in trauma?

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Tachycardia Dysrhythmia Atrial Fibrillation Bradycardia 115

Dr. Smith's ECG Blog

JUNE 1, 2022

A 40-something male with no previous cardiac disease presented with chest pain. The pain continued and the first high sensitivity troponin I returned at 105 ng/L Another ECG was recorded: The ST segment in aVF has flattened a bit, revealing that there is some STD in addition to the non-specific findings in III and aVL.

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Chest Pain STEMI Myocardial Infarction Bradycardia 52

Dr. Smith's ECG Blog

OCTOBER 8, 2023

All of the patients presented with chest pain , and they are all in triage. Triage is backed up, and 10 minutes into your shift one of the ED nurses brings your several ECG s that has not been overread by a physician. Which, if any, of these patients has OMI, with myocardium at risk and need for emergent PCI?

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Ischemia Chest Pain Cardiogenic Shock Cardiac Arrest 123

Dr. Smith's ECG Blog

NOVEMBER 3, 2017

This is the initial ED ECG of a 46 year old male with chest pain: The QTc was 420 ST Elevation at 60 ms after the J-point in lead V3 = 2.5 ng/ml) A 45 year old male called 911 for chest pain: The QTc was 400 ST Elevation at 60 ms after the J-point in lead V3 = 3.5 100% LAD occlusion. He underwent CABG. QRS V2 = 15.5

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Chest Pain STEMI Bradycardia Stenosis 52

Dr. Smith's ECG Blog

MAY 5, 2022

He denied any chest pain or shortness of breath and stated he felt at his baseline yesterday prior to drug use. They recommended repeating his ECG and awaiting troponin since the patient did not have any chest pain. He complained of generalized weakness and left lower extremity numbness. What is it? Activate the Cath Lab?

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Chest Pain Bradycardia Cardiac Arrest STEMI 52

Dr. Smith's ECG Blog

OCTOBER 11, 2020

Apparently he denied chest pain. JAMA 2000) showed that 1/3 of patients with STEMI, and 1/3 of patients with NSTEMI, present without chest pain. Chest pain and Concordant ST Depression in a patient with aortic valve and previously normal angiogram Right Bundle Branch Block and ST Depression in V1-V3.

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Dr. Smith's ECG Blog

FEBRUARY 2, 2024

A 55 year old with no previous cardiac history presented with 3 hours of chest pain. The pain was persistent and reportedly still present at the time of the ECG. He has now implemented the Queen of Hearts in his hospital. He wanted to share one of the first cases. This will be corrected in Version 2, coming soon.

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Hospital STEMI Blog Chest Pain 85

Circulation

NOVEMBER 11, 2024

The relationship between low RHR and CI has yet to be described.Purpose:We hypothesize that resting sinus bradycardia (low RHR) could be a predictor of chronotropic incompetence and reduced exercise capacity.Methods:The derivation cohort consists of 201 patients with normal Bruce protocol treadmill stress echocardiogram. x age in years).Results:The

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Exercise Chest Pain Myocardial Infarction Bradycardia 40

Wellnest

DECEMBER 21, 2022

If you experience any symptoms, such as chest pain, dizziness, unusual tiredness or fatigue, shortness of breath, or irregular heartbeat, your doctor would want you to go for an ECG test to find out the underlying cause. A fast heartbeat is called tachycardia, while a slow heartbeat is called bradycardia in medical terms.

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Ken Grauer, MD

OCTOBER 27, 2023

That said — obvious findings include: i ) Marked bradycardia! — MY " Q uick T houghts" on Today's CASE: The ECG in Figure-1 is highly concerning — so it is indeed fortunate that this elderly woman came to the ED when she did! The rhythm in Figure-1 is complex — and defies precise interpretation without careful study. be regular! —

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Blog Pacemaker Bradycardia Arrhythmia 101

Dr. Smith's ECG Blog

JANUARY 5, 2024

Written by Willy Frick A 46 year old man with a history of type 2 diabetes mellitus presented to urgent care with complaint of "chest burning." The ECG shows sinus bradycardia but is otherwise normal. The patient said his chest pain was 4/10, down from 8/10 on presentation. The following ECG was obtained.

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Angina Plaque Document Stents 121

Dr. Smith's ECG Blog

FEBRUARY 15, 2018

Here are inferior leads, and aVL, magnified: A closer inspection of the inferior leads and aVL Sinus bradycardia. She went on to describe her chest pain as a "buffalo sitting on my chest" and a "weird" sensation in her jaw for 1 hour prior to arrival, associated with lightheadedness and diaphoresis. What do you think?

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Dr. Smith's ECG Blog

JULY 26, 2023

The combination of absence of chest pain and history of LV aneurysm made it easy to assess that this patient does not have acute OMI. In view of the History with the current admission ( ie, presenting to the ED for vertigo — with no new chest pain ) — I interpreted ECG #1 as no OMI.

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