Dr. Smith's ECG Blog

JULY 21, 2024

There is no definite evidence of acute ischemia. (ie, Simply stated — t he patient was having recurrent PMVT without Q Tc prolongation, and without evidence of ongoing transmural ischemia. ( Some residual ischemia in the infarct border might still be present. Both episodes are initiated by an "R-on-T" phenomenon.

Arrhythmia 113

Arrhythmia Cardiogenic Shock Bradycardia Defibrillator 113

Dr. Smith's ECG Blog

FEBRUARY 8, 2022

Osborn waves have been reported with hypercalcemia, brain injury, subarachnoid hemorrhage, Brugada syndrome, cardiac arrest from VFib — and — severe, acute ischemia resulting in acute MI ( See My Comment in the November 22, 2019 post on Dr. Smith’s Blog ). Rituparna et al — as well as Chauhan and Brahma ( Int.

Cardiac Arrest 52

Cardiac Arrest Bradycardia Chest Pain Ischemia 52

Wellnest

DECEMBER 21, 2022

A fast heartbeat is called tachycardia, while a slow heartbeat is called bradycardia in medical terms. Cardiac arrest Cardiac arrest is a medical emergency in which the heart stops pumping blood to the body. Electrocardiogram, echocardiogram, and some other tests are done for patients with cardiac arrest.

Cardiac Arrest 52

Cardiac Arrest Heart Attack Heart attacks Atrial Fibrillation 52

Dr. Smith's ECG Blog

MAY 5, 2022

Hyperkalemia causes peaked T waves and the "killer B's of hyperkalemia", including bradycardia, broad QRS complexes, blocks of the AV node and bundle branches, Brugada morphology, and otherwise bizarre morphology including sine wave. Steve, what do you think of this ECG in this Cardiac Arrest Patient?" With a twist.

Chest Pain 52

Chest Pain Bradycardia Cardiac Arrest STEMI 52

Dr. Smith's ECG Blog

OCTOBER 8, 2023

Remember, in diffuse subendocardial ischemia with widespread ST-depression there may b e ST-E in lead s aVR and V1. There are well formed R-waves with good voltage/amplitude which is uncommon for ischemia. Smith: This bizarre ECG looks like a post cardiac arrest ECG with probable acidosis or hyperkalemia in addition to OMI.

Ischemia 109

Ischemia Chest Pain Cardiogenic Shock Cardiac Arrest 109

Dr. Smith's ECG Blog

JANUARY 21, 2023

This ECG shows a sinus bradycardia with a normal conduction pattern (normal PR, normal QRS, and normal QTc), normal axis, normal R-wave progression, normal voltages. Hypothermia can also produce bradycardia and J waves, with a pseudo-STEMI pattern. ECG met STEMI criteria and was labeled STEMI by computer interpretation.

STEMI 52

STEMI Bradycardia Arrhythmia Cardiac Arrest 52

Ken Grauer, MD

OCTOBER 27, 2023

That said — obvious findings include: i ) Marked bradycardia! — This suggests ischemia of uncertain duration. Unfortunately, before this could be accomplished — the patient went into cardiac arrest. She was successfully resuscitated — with a post-arrest rhythm similar to that seen in Figure-1. be regular! —

Blog 103

Blog Pacemaker Bradycardia Arrhythmia 103

Dr. Smith's ECG Blog

MAY 6, 2019

Followup ECG: No Change Absence of evolution is the best evidence against ischemia as the etiology. 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. Ischemia/infarction. Bradycardia. Hypothermia.

Chest Pain 52

Chest Pain STEMI Ischemia Myocardial Infarction 52

Dr. Smith's ECG Blog

DECEMBER 15, 2015

In any case, there is bradycardia. There is ST depression beyond the end of the wide QRS in I, II, aVF, and V4-V6, diagnostic of with subendocardial ischemia. First, what kind of arrest was this? It was a PEA or bradyasystolic arrest , not a shockable rhythm. There is no ST elevation. It can also be due to RV MI.

STEMI 52

STEMI Embolism Pulmonary Ultrasound 52

Dr. Smith's ECG Blog

APRIL 15, 2019

If a patient presents with chest pain and a normal heart rate, or with shockable cardiac arrest, then ischemic appearing ST elevation is STEMI until proven otherwise. It is prudent to treat the other conditions, get the heart rate controlled, and repeat the ECG.

Tachycardia 52

Tachycardia STEMI Chest Pain Ischemia 52

Dr. Smith's ECG Blog

NOVEMBER 18, 2019

U waves may also be found in patients with LVH and/or bradycardia , or occasionally as a normal variant. This is often quite challenging to recognize — but the finding of negative U waves in a patient with chest pain is highly suggestive of ischemia ! N OTE # 1 — U waves are not specific for hypokalemia!

Chest Pain 52

Chest Pain Cardiac Arrest Bradycardia Ischemia 52

Dr. Smith's ECG Blog

NOVEMBER 25, 2022

These include ( among others ) — acute febrile illness — variations in autonomic tone — hypothermia — ischemia-infarction — malignant arrhythmias — cardiac arrest — and especially Hyperkalemia. Other Arrhythmias ( PACs, PVCs, AFib, Bradycardia and AV conduction disorders — potentially lethal VT/VFib ).

Arrhythmia 52

Arrhythmia Blog Chest Pain Cardiac Arrest 52

Dr. Smith's ECG Blog

JANUARY 30, 2019

In addition to a spontaneous or induced Brugada-1 ECG pattern, criteria for B rugada S yndrome require one or more of the following: History of cardiac arrest, of polymorphoic VT, or of non-vagal syncope — positive family history of sudden death at an early age — a similar ECG in close relatives.

Heart Rhythm 52

Heart Rhythm Sudden Cardiac Death Arrhythmia STEMI 52