Medical Xpress - Cardiology

JUNE 28, 2024

A heart attack is a life-threatening condition, with patients remaining at risk of premature death long after the actual attack—50% to 60% of patients die subsequently as a result of sudden cardiac death, triggered by cardiac arrhythmia.

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Sudden Cardiac Death Pacemaker Heart attacks Heart Attack 91

Ken Grauer, MD

SEPTEMBER 15, 2024

For full discussion of the case — CLICK HERE — ECG Rhythm Overview: A 12-year-old boy was admitted to our hospital with severe myocardial dysfunction and chaotic rhythm with tachy- and bradycardic arrhythmias. In the meantime, a pacemaker may be needed. = Hope this helps — :) ECG-3 — I see sinus bradycardia and arrhythmia.

Arrhythmia 78

Arrhythmia Bradycardia Heart Failure Pacemaker 78

Frontiers in Cardiovascular Medicine

JANUARY 10, 2024

111.87), arrhythmias were detected in 9 (33%) patients. Three patients developed symptomatic sinus node dysfunction at 18, 25, and 38 days and received permanent pacemakers. One patient developed a complete AV block during acute rejection at 76 months and received a temporary pacemaker. On a median follow-up of 35.07

Heart Transplant 59

Heart Transplant Transplant Arrhythmia Pacemaker 59

HeartRhythm

APRIL 30, 2024

Pacemaker malfunction maybe life threatening by inducing malignant arrhythmia or failure to pace in dependent patients. We report a case of syncope and injury related to device malfunction, where the only solution was exchanging the pacemaker generator.

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Pacemaker Arrhythmia 40

Frontiers in Cardiovascular Medicine

FEBRUARY 20, 2024

Background Cardiac arrhythmias have markedly increased in recent decades, highlighting the urgent need for appropriate test systems to evaluate the efficacy and safety of new pharmaceuticals and the potential side effects of established drugs.

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Pacemaker Heart Rhythm Technology Arrhythmia 49

HeartRhythm

SEPTEMBER 23, 2024

External electric cardioversion (ECV) effectively converts atrial and ventricular arrhythmias and is also recommended for patients with cardiovascular implantable electronic devices (CIED) (1, 2).

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Pacemaker Arrhythmia 40

Open Heart

JULY 17, 2023

Cardiac accumulation triggers local tissue injury, electrical instability and arrhythmia. Objective We conducted a systematic review evaluating AF burden and bradycardia requiring permanent pacemaker (PPM) implantation and report any predictive risk factors identified. Age was associated with AF (OR 1.05–1.20

Bradycardia 52

Bradycardia Atrial Fibrillation Pacemaker Risk Factors 52

Dr. Smith's ECG Blog

JANUARY 13, 2024

Written by Willy Frick A man in his 70s with a history of HFrEF and sick sinus syndrome s/p dual chamber pacemaker placement was admitted for overnight observation following outpatient placement of a mitral valve clip. This is unambiguous evidence of pacemaker malfunction. Imagine the pacemaker is set at a minimum rate of 60.

Pacemaker 110

Pacemaker Bicuspid/Mitral Blood Pressure Bradycardia 110

HeartRhythm

APRIL 30, 2024

Cardiac arrhythmias are often encountered in orthotopic heart transplantation (OHT) recipients due to multiple risk factors and may lead to the necessity of permanent pacemaker implantation(PPI). Ischemic time > 4 hours has been associated with graft dysfunction.

Heart Transplant 40

Heart Transplant Transplant Pacemaker Risk Factors 40

Ken Grauer, MD

OCTOBER 13, 2023

Is a pacemaker needed? With P waves labeled — Isn't it now much easier to appreciate that the atrial rhythm is quite regular ( with no more than a slight sinus arrhythmia )? P utting I t A ll T ogether : The precise mechanism of today's arrhythmia is complex and difficult to determine. Is this " high -grade" AV block?

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Blog Arrhythmia Bradycardia Download 159

HeartRhythm

MARCH 12, 2024

Many patients with mild to moderately reduced left ventricular ejection fraction (LVEF) that require permanent pacemaker (PPM) implantation do not have a concurrent indication for implantable cardioverter-defibrillator (ICD) therapy. However, the risk of ventricular tachycardia/fibrillation (VT/VF) in this population is unknown.

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Pacemaker Defibrillator Arrhythmia Tachycardia 40

Dr. Smith's ECG Blog

JULY 21, 2024

However, he suddenly developed a series of malignant ventricular arrhythmias. Below are printouts of some of the arrhythmias recorded. This time, the arrhythmia did not spontaneously terminate — but rather degenerated to VFib, requiring defibrillation. The arrhythmia starts with a PVC having a short coupling interval.

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Arrhythmia Cardiogenic Shock Bradycardia Defibrillator 131

Dr. Smith's ECG Blog

FEBRUARY 18, 2024

Written by Willy Frick A woman in her 90s with a history of end stage renal disease and complete heart block status post dual chamber pacemaker presented from home with acute onset dyspnea. As per Dr. Frick — pacemaker spikes are best seen in lead aVL of ECG #1. ECG is shown below. What do you think?

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Pacemaker Blog Atrial Fibrillation Electrophysiology 109

Penn Heart and Vascular Blog

MAY 24, 2022

A cardiac arrhythmia is an abnormal heartbeat caused by a problem in the "wiring" of your heart muscle. You may or may not feel it but it should not be ignored.

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Pacemaker Arrhythmia 40

Journal of the American Heart Association

FEBRUARY 13, 2024

BackgroundScreening for atrial fibrillation (AF) may reveal incidental arrhythmias of relevance. We furthermore report treatment decisions because of incidental arrhythmias. We found incidental arrhythmias in 94 patients (11.8%). Journal of the American Heart Association, Ahead of Print. of our cohort patients.

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Atrial Fibrillation Arrhythmia Hospital Tachycardia 40

HeartRhythm

APRIL 23, 2024

Refers to: “PVC response Atrial-Pace,” an algorithm designed for preventing pacemaker-induced tachycardia after premature ventricular contractions, triggers atrial high rate episodes.1

Arrhythmia 40

Arrhythmia Pacemaker Tachycardia 40

Dr. Smith's ECG Blog

JUNE 27, 2024

They knew she would need a pacemaker unless some transient and reversible cause was discovered. Once this happens, of course, the patient will require temporary or permanent pacemaker as soon as possible. She required intermittent pacing from the temp wire numerous times overnight so a permanent pacemaker was placed the next day.

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Blog Pacemaker Bradycardia Tachycardia 120

Frontiers in Cardiovascular Medicine

DECEMBER 18, 2023

Workup including echocardiography, cardiac magnetic resonance imaging, and Holter monitor did not show evidence of ACM or significant arrhythmias. He underwent urgent dual chamber pacemaker implantation, during which a ventricular programmed stimulation study was performed and was negative for sustained ventricular arrhythmias.

Cardiomyopathy 64

Cardiomyopathy Arrhythmia Pacemaker Document 64

Dr. Smith's ECG Blog

AUGUST 9, 2024

There are three mechanisms of arrhythmia: automatic, re-entry, and triggered. The most common triggered arrhythmia is Torsades de Pointes. Automatic activity refers to enhanced pacemaking function (typically from a non sinus node source), for example atrial tachycardia. This has been discussed many times before on this blog.

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Chest Pain Arrhythmia Myocardial Infarction STEMI 107

Dr. Smith's ECG Blog

MAY 21, 2023

Here is the first ED ECG: COMPUTER INTERPRETATION: Electronic Atrial Pacemaker. He has a h/o 3rd degree heart block and has a pacemaker. His pacemaker was interrogated and it was found that the pacemaker was not adquately capturing. Lethal arrhythmias may be a terminal event ( VT/VFib; Asystole ). The K was 5.8

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Chest Pain Pacemaker Atrial Fibrillation Blog 94

CTVS

JULY 31, 2023

At CTVS, our team of board-certified thoracic surgeons routinely perform a procedure known as a thoracic sympathectomy to treat hyperhidrosis, or excessive sweating. During this surgery, part of the sympathetic chain of nerves that runs along the spine is carefully severed to halt signals that trigger the sweat glands.

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Arrhythmia Pacemaker 52

Journal of Cardiothoracic Surgery

FEBRUARY 5, 2024

Electrical storm (ES) is a clinical emergency characterized by multiple malignant ventricular arrhythmias or ICD discharges within 24 h, requiring early rational management.

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Pacemaker Arrhythmia 52

Circulation: Arrhythmia and Electrophysiology

NOVEMBER 27, 2024

Circulation: Arrhythmia and Electrophysiology, Volume 17, Issue 12 , Page e013285, December 1, 2024.

Electrophysiology 40

Electrophysiology Pacemaker Arrhythmia Circulation 40

Dr. Smith's ECG Blog

AUGUST 14, 2024

This patient does not have a pacemaker, so this must be a ventricular escape rhythm. Redundant and diverse intranodal pacemakers and conduction pathways protect the human sinoatrial node from failure. The KEY to interpreting many complex arrhythmias lies with determination of what is and what is not a P wave. & Fedorov, V.

Arrhythmia 110

Arrhythmia Pacemaker Outcomes Blog 110

Journal of Cardiovascular Electrophysiology

OCTOBER 16, 2024

LBBAP significantly improved LVEF without causing fatal ventricular arrhythmias. All patients had a reduced LVEF of 36%–50% and underwent pacemaker implantation. No fatal ventricular arrhythmias occurred. Conclusion LBBAP significantly improved cardiac systolic dysfunction without causing fatal ventricular arrhythmias.

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Arrhythmia Heart Failure Cardiomyopathy Pacemaker 61

Open Heart

JULY 28, 2023

Introduction The incidence of arrhythmia in heart failure with non-reduced ejection fraction (HFnon-rEF) in patients who have a history of hospitalisation is unclear. Methods and analysis This is a multicentre single arm study to evaluate the usefulness of ILR for detecting arrhythmia.

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Atrial Fibrillation Arrhythmia Heart Failure Tachycardia 40

Dr. S. Venkatesan MD

MARCH 19, 2024

Massie Block -Ref 1) But, if there is something unusual in the clinical history, be ready to investigate until the arrhythmia, or at least the anxiety disappears. Final message AV blocks, even Mobitz type 2, can occur at normal times of heightened vagal tone.( Reference 1.

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Arrhythmia Sudden Cardiac Death Electrophysiology Cardiomyopathy 52

Circulation

JULY 10, 2024

The rapid technological advancements in cardiac implantable electronic devices such as pacemakers, implantable cardioverter defibrillators, and loop recorders, coupled with a rise in the number of patients with these devices, necessitate an updated clinical framework for periprocedural management.

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Defibrillator Pacemaker Technology Nursing 49

HeartRhythm

SEPTEMBER 13, 2024

Atrioventricular block (AVB) is a frequent initial presentation of cardiac sarcoidosis (CS), but dangerous ventricular arrhythmias (VA) can occur. Despite the scarcity of data, guidelines recommend ICD rather than a pacemaker implantation whenever a device is needed.

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Pacemaker Tachycardia Arrhythmia 40

HeartRhythm

APRIL 30, 2024

Pacemaker implantation combined with atrioventricular node ablation (AVNA) is a well-established strategy for non-controlled atrial arrhythmias. Limited amount of data is available regarding His Bundle Pacing (HBP), or Left Bundle Branch Area Pacing (LBBAP) in this setting.

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Ablation Pacemaker Arrhythmia 40

All About Cardiovascular System and Disorders

MAY 1, 2024

CRT is a type of pacemaker in which three chambers of the heart are paced, right atrium, right ventricle and left ventricle. The timing of the stimuli given by the pacemaker is adjusted to produce synchrony of contractions of the left ventricle. This picture illustrates what reduced ejection fraction means.

Heart Failure 52

Heart Failure Arrhythmia Pacemaker Defibrillator 52

Dr. Smith's ECG Blog

JANUARY 2, 2025

Place temporary pacemaker 3. Discontinue all negative chronotropic agents, since the risk of torsade is much higher with bradycardia or pauses. See this post: How a pause can cause cardiac arrest 2. Discontinue amiodarone, since it prolongs the QT 4. Discontinue all QT proloning medications, including azithromycin 6.

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Tachycardia Cardiomyopathy Blog Bradycardia 116

HeartRhythm

OCTOBER 21, 2024

Sick sinus syndrome (SSS) is a common condition resulting in reduced quality of life, syncope, and pacemaker (PPM) implantation, but predictors have not been elucidated.

Atrial Flutter 40

Atrial Flutter Quality of Life Pacemaker Arrhythmia 40

HeartRhythm

APRIL 30, 2024

Sick sinus syndrome (SSS) is a common condition resulting in reduced quality of life, syncope, and pacemaker (PPM) implantation, but predictors have not been elucidated.

Atrial Flutter 40

Atrial Flutter Quality of Life Pacemaker Arrhythmia 40

The British Journal of Cardiology

OCTOBER 8, 2024

Pathogenic genetic variants in the HCN4 (hyperpolarisation-activated and cyclic nucleotide-gated channel) gene can cause sinus node dysfunction, disrupting the function of the pacemaker region of the heart. Patients with such variants can present with a wide spectrum of arrhythmias but sudden death is generally considered rare.

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Sudden Cardiac Death Pacemaker Arrhythmia Outcomes 40

Dr. Smith's ECG Blog

JANUARY 31, 2019

== P EARL # 1: The easiest way to instantly enhance your arrhythmia interpretation skills is by using calipers. The cardiologist who does not regularly use calipers for interpretation of complex arrhythmias is a cardiologist who will miss the diagnosis on more than a few occasions. Using calipers will NOT slow you down.

Bradycardia 52

Bradycardia Pacemaker Arrhythmia Tachycardia 52

Dr. Smith's ECG Blog

JULY 5, 2018

We admitted him for probable EP study and possible pacemaker. He underwent pacemaker placement and is doing fine. SSS is by far the most common reason for permanent pacemaker placement. during which sinus bradycardia and arrhythmia are seen but not to a degree that produces symptoms. Learning Points: 1.

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Atrial Fibrillation AFIB Bradycardia Pacemaker 52