Circulation: Arrhythmia and Electrophysiology

NOVEMBER 29, 2023

Circulation: Arrhythmia and Electrophysiology, Ahead of Print. Atrial cardiomyopathy is a condition that causes electrical and contractile dysfunction of the atria, often along with structural and functional changes.

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Cardiomyopathy Atrial Fibrillation Electrophysiology Arrhythmia 40

All About Cardiovascular System and Disorders

APRIL 30, 2024

Hypertrophic cardiomyopathy is a genetic disorder with a guarded prognosis which occurs in about 1:500 individuals. The most common symptom of hypertrophic cardiomyopathy is dyspnoea which occurs in 90% of cases and is due to elevated left ventricular diastolic pressures as a consequence of the diastolic dysfunction.

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Circulation: Arrhythmia and Electrophysiology

OCTOBER 25, 2023

Circulation: Arrhythmia and Electrophysiology, Volume 16, Issue 11 , Page e012191, November 1, 2023. BACKGROUND:The cause of hypertrophic cardiomyopathy (HCM) in the young is highly varied. Six (21%) patients had clinical atrial fibrillation (1 with shortest preexcited RR interval <250 ms).

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HeartRhythm

APRIL 30, 2024

AF is the most common sustained arrhythmia in HCM. The ability of predicting AF in the HCM population is limited.

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HeartRhythm

NOVEMBER 30, 2023

The advent of transseptal puncture has enabled the study of atrial fibrillation mechanisms, while epicardial access has enabled exploration of the epicardium in ventricular arrhythmias (ventricular tachycardia/ventricular fibrillation [VF]).1,2

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Dr. Smith's ECG Blog

SEPTEMBER 16, 2024

Note: Due to the limited number of normally conducted beats — it is hard to be sure whether the underlying rhythm is sinus with baseline artefact or atrial fibrillation. Note: The patient while on telemetry had alternating atrial fibrillation, sinus rhythm with 1st degree AV block and also periods of Wenckebach conduction.

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Cardiometabolic Health Congress

SEPTEMBER 13, 2024

Updated Mayo Clinic HCM Genotype Predictor Score: Iuri Ferreira Felix, MD (USA) presented the updated Mayo Clinic HCM Genotype Predictor Score, a valuable screening tool for identifying hypertrophic cardiomyopathy (HCM) patients with a high likelihood of testing positive for genetic mutations. Read the published study.

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Hypertension Cardiovascular Disease Bicuspid/Mitral Arrhythmia 59

Dr. S. Venkatesan MD

APRIL 28, 2024

When atrial fibrillation (AF) begins, it can start with a single focus, degenerating to multiple wavelets, and it spreads throughout the entire surface area of both atria. A fibrillatory wave that occurs at a rate of more than 600 beats per minute can cause fatigue in the long run, leading to atrial dilation.

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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

OCTOBER 23, 2023

T-wave alternans and the susceptibility to ventricular arrhythmias. Chronic amiodarone evokes no torsade de pointes arrhythmias despite QT lengthening in an animal model of acquired long-QT syndrome. Both ST segment and T wave alternans have been known to precede malignant ventricular arrhythmias. Pacing Clin Electrophysiol.

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Tachycardia Cardiac Arrest ICU Blood Pressure 123

Dr. Smith's ECG Blog

JANUARY 21, 2023

While traditionally described as “benign early repolarization”, they have been associated with J wave syndromes along with Brugada syndrome, causing ventricular arrhythmias (1, 2). The relationship between J wave and ventricular tachycardia during Takotsubo cardiomyopathy. Indian Pacing Electrophysiol J 2004 Antzelevitch C, Yan G.

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STEMI Bradycardia Arrhythmia Cardiac Arrest 52

Dr. Smith's ECG Blog

DECEMBER 23, 2019

They had a history of non-ischemic cardiomyopathy (EF 30%), as well as PCI with one stent. Detail of Flutter waves The rate of the flutter waves matches the rate of the WCT (about 200/m), proving that the presenting WCT had been 1:1 atrial flutter. The subsequent EP study could not induce VT, only atrial fibrillation.

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Tachycardia Atrial Flutter Cardiomyopathy Atrial Fibrillation 52

Dr. Smith's ECG Blog

MARCH 6, 2020

The absence of any wall motion abnormality makes ischemic cardiomyopathy very unlikely. The new onset cardiomyopathy was thought to be due to both drug/alcohol use and to Tachycardia-Induced Cardiomyopathy. after atrial surgery • Not stopped by adenosine (0/13 pts, incl. Mild to moderate mitral regurgitation.

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Heart Failure Tachycardia Atrial Flutter Cardiomyopathy 52

DAIC

JUNE 19, 2024

By 1909 ECGs were being used to diagnose cases of arrhythmia; by 1910 to diagnose indicators of a heart attack. to develop an AI-algorithm for identifying and triaging patients with Hypertrophic cardiomyopathy (HCM), a condition currently undetected in 80% of cases.

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Stroke Journal

FEBRUARY 7, 2024

The primary outcome was a composite of all-cause death, heart failure, atrial fibrillation, ventricular arrhythmias, myocardial infarction, and Takotsubo cardiomyopathy 30 days from the stroke. 1.34]), atrial fibrillation (HR, 1.11 [95% CI, 1.09–1.13]), 1.13]), ventricular arrhythmias (HR, 1.38 [95% CI, 1.30–1.46]),

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Strokes Stroke Myocardial Infarction Atrial Fibrillation 40

Dr. Smith's ECG Blog

JUNE 28, 2023

It is dangerous in WPW with atrial fibrillation. In Atrial Fibrillation, the tachycardia will always be irregularly irregular. In my opinion — it is a mistake to interpret arrhythmias in strict "binary" fashion — since rather than "either/or" — optimal interpretation is more of a probability statement.

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Tachycardia Ultrasound Heart Disease Atrial Fibrillation 94

Dr. Smith's ECG Blog

NOVEMBER 28, 2022

Both ST segment and T wave alternans have been known to precede malignant ventricular arrhythmias. 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.

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Dr. Smith's ECG Blog

JANUARY 9, 2024

She also has a hx of paroxysmal atrial fibrillation and is on oral anticoagulant treatment. There is almost always the possibility of exceptions ( ie, prior infarction or cardiomyopathy that might result in a very abnormal baseline tracing ). The last echocardiography 12 months ago showed HFmrEF.

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Frontiers in Cardiovascular Medicine

JANUARY 10, 2024

Introduction Apical hypertrophic cardiomyopathy (ApHCM) is a subtype of hypertrophic cardiomyopathy (HCM) that affects up to 25% of Asian patients and is not as well understood in non-Asian patients.

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Dr. Smith's ECG Blog

AUGUST 13, 2020

He had a h/o ischemic cardiomyopathy and right MCA stroke. He was brought to the critical care area where these rhythms were seen on the monitor: Wide complex tachycardia with no apparent P-waves, and very irregular Consistent with atrial fibrillation with aberrancy A Regular wide complex tachycardia.

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