Dr. Smith's ECG Blog

FEBRUARY 2, 2024

Written by Pendell Meyers First try to interpret this ECG with no clinical context: The ECG shows an irregularly irregular rhythm, therefore almost certainly atrial fibrillation. After an initially narrow QRS, there is a very large abnormal extra wave at the end of the QRS complex. There is also large T wave inversion and long QT.

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Blog Cardiac Arrest Atrial Fibrillation Bradycardia 137

Dr. Smith's ECG Blog

OCTOBER 10, 2022

The rhythm is atrial fibrillation. He had multiple cardiac arrests with ROSC regained each time. Then there is loss of pulses with continued narrow complex on the monitor ("PEA arrest") Learning Points: Sudden witnessed Cardiac Arrest due to ACS is almost always due to dysrhythmia.

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Dr. Smith's ECG Blog

DECEMBER 13, 2024

Whenever it is this fast, you need to be very careful to ascertain whether it is irregular ( as in atrial fibrillation with rapid ventricular respsonse ) or regular ( as in VT ). This is not because it is polymorphic VT; it is because it is WPW with atrial fibrillation. Atrial fibrillation/flutter in pre-excitation.

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AFIB Atrial Fibrillation Tachycardia Blog 103

MIBHS

FEBRUARY 28, 2025

Arrhythmias: Genetic mutations can also predispose individuals to irregular heart rhythms, such as atrial fibrillation or long QT syndrome, which may increase the risk of stroke or sudden cardiac arrest. Mutations in specific genes often cause hypertrophic cardiomyopathy and dilated cardiomyopathy.

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HeartRhythm

APRIL 30, 2024

Nearly two decades ago, an alarm was sounded about potential cardiac risks of stimulant medication (SM). The risk of cardiac arrest in WPW is due to rapid conduction of atrial fibrillation via the accessory pathway to the ventricles. The use of SM in Wolff-Parkinson-White (WPW) has not been well studied.

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HeartRhythm

JUNE 11, 2024

Atrioesophageal fistula (AEF), although rare, is a dreaded and often lethal complication of thermal ablation of atrial fibrillation (AF).Several

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Cardiac Arrest Atrial Fibrillation Ablation Outcomes 40

DAIC

JULY 30, 2024

6 , the program will include, among networking and roundtables, the following: HRX Pitch Competition #1 Cardiac Arrest, the Next Digital Health Frontier: Mina K. Kathryn Zavala | Stephen Flaim | Giovanni Leo | Daniel Gottlieb | David Kim | David Roman During day two of HRX 2024, Friday, Sept.

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Wellnest

DECEMBER 21, 2022

Atrial Fibrillation Atrial fibrillation causes irregular heartbeat, and the heart's normal blood supply is affected. Since atrial fibrillation can also be intermittent, such patients should continuously monitor their heart activity while performing daily activities with a portable ECG device.

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Dr. Smith's ECG Blog

SEPTEMBER 12, 2023

Smith’s ECG Blog: SQTS is an inherited cardiac channelopathy determined by the presence of symptoms ( syncope, cardiac arrest ) — positive family history — and the ECG finding of an abnormally short QTc interval. SQTS is a relatively new diagnosis that has only been recognized as a distinct clinical entity since 2000.

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Cardiac Arrest Blog Atrial Fibrillation AFIB 68

Dr. Smith's ECG Blog

OCTOBER 20, 2024

The rhythm now is atrial fibrillation. This patient is actively dying from a left main coronary artery OMI and cardiac arrest from VT/VF or PEA is imminent! Complete LMCA occlusion is associated with clinical shock and/or cardiac arrest. A repeat ECG was recorded about 15 minutes after the initial ECG.

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Dr. Smith's ECG Blog

OCTOBER 23, 2023

Edited by Bracey, Meyers, Grauer, and Smith A 50-something-year-old female with a history of an unknown personality disorder and alcohol use disorder arrived via EMS following cardiac arrest with return of spontaneous circulation. Cardiac Motion Alternans — is the result of cardiac movement rather than electrical alternation.

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Circulation

NOVEMBER 11, 2024

Logistic regression was used to analyze the relationship between the treatment groups and hospital readmission within 90 days.Results:Only 517 AA met inclusion criteria and did not meet exclusion criteria, which included a history of valvular heart disease, hypertrophic or restrictive cardiomyopathy, active myocarditis, history of cardiac arrest, and (..)

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Heart Failure Cardiac Arrest Kidney Disease Atrial Fibrillation 40

Dr. Smith's ECG Blog

APRIL 8, 2016

There is atrial fibrillation. Comments: STEMI with hypokalemia, especially with a long QT, puts the patient at very high risk of Torsades or Ventricular fibrillation (see many references, with abstracts, below). If cardiac arrest from hypokalemia is imminent (i.e., mEq/L: The STE is resolved. mEq/L, from 1.9

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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.

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All About Cardiovascular System and Disorders

OCTOBER 26, 2023

Still more are factors are age < 18 years, sudden cardiac death in first degree relative, SCN5A mutations, atrial fibrillation, PR interval > 200 ms, QRS duration > 120 ms, presence of late potentials and aVR sign, manifested as R wave ≥ 0.3 Atrial fibrillation and Brugada syndrome. mV or R/q ≥ 0.75.

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Dr. Smith's ECG Blog

OCTOBER 8, 2023

Another frequent feature of hypothermia is atrial fibrillation (not seen in this case) Core temperature of this patient was 29,5 Celsius. Smith: This bizarre ECG looks like a post cardiac arrest ECG with probable acidosis or hyperkalemia in addition to OMI. Troponins were negative in serial blood tests. Potassium 4,6.

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Dr. Smith's ECG Blog

NOVEMBER 4, 2022

Case submitted and written by Mazen El-Baba MD, with edits from Jesse McLaren and edits/comments by Smith and Grauer A 90-year old with a past medical history of atrial fibrillation, type-2 diabetes, hypertension, dyslipidemia, presented with acute onset chest/epigastric pain, nausea, and vomiting.

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Dr. Smith's ECG Blog

NOVEMBER 24, 2017

Rate correction should not be used when RR interval has large variability, as in atrial fibrillation. Atrial Fibrillation: These authors compared Bazett, Fridericia, and Framingham QT measurements on 54 patients with atrial fibrillation. Dangerously prolonged QT is 480, especially greater than 500 ms.

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Dr. Smith's ECG Blog

NOVEMBER 28, 2022

Conduction and refractoriness alternans may be seen with WPW-related as well as AV Nodal-dependent reentr y tachycardias — atrial fibrillation — acute pulmonary embolus — myocardial contusion — and severe LV dysfunction. Cardiac Motion Alternans — is the result of cardiac movement rather than electrical alternation.

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Circulation

NOVEMBER 11, 2024

Background:Catheter ablation (CA) is increasingly used for treatment of atrial fibrillation (AF). Cox proportional hazards models were used to estimate hazard ratios (HR) for the composite and individual endpoints from CABANA trial (death, stroke, major bleeding or cardiac arrest) and CASTLE-AF trial (death or heart failure).

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Dr. Smith's ECG Blog

FEBRUARY 17, 2023

Smith’s ECG Blog: SQTS is an inherited cardiac channelopathy determined by the presence of symptoms ( syncope, cardiac arrest ) — positive family history — and the ECG finding of an abnormally short QTc interval. SQTS is a relatively new diagnosis that has only been recognized as a distinct clinical entity since 2000.

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Dr. Smith's ECG Blog

JANUARY 21, 2023

The final letter in the SLOWED mnemonic is " D " for "Dead" ( resulting from VT/VF or asystolic cardiac arrest ). In a sense — frequent ventricular ectopy is already included in this "D" ( which frees use of the "E" to prompt recall of ST elevation that may be seen with hypothermia, and which is not the result of acute OMI ).

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Frontiers in Cardiovascular Medicine

FEBRUARY 2, 2025

Typical symptoms associated with HCM include atrial fibrillation (AF), syncope, ventricular fibrillation, and cardiac arrest. Phenotypically, the patient initially presented with syncopal episodes, atrioventricular (AV) block, and atrial fibrillation.

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