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Related Concept Videos

Heart Failure VI: Adjunct Therapies01:22

Heart Failure VI: Adjunct Therapies

174
Additional therapies for treating patients with heart failure (HF) may include procedural interventions, supplemental oxygen, the management of sleep disorders, and nutritional therapy.Procedural InterventionsImplantable Cardioverter-Defibrillator: For patients at risk of life-threatening arrhythmias due to severe left ventricular dysfunction, an Implantable Cardioverter-Defibrillator (ICD) can detect and terminate these arrhythmias, preventing sudden cardiac death and improving survival rates.
174
Cardiomyopathy II: Dilated Cardiomyopathy01:30

Cardiomyopathy II: Dilated Cardiomyopathy

329
Dilated cardiomyopathy, or DCM, is a progressive myocardial disorder characterized by ventricular chamber dilation and contractile dysfunction.EtiologyVarious factors can cause DCM, including hypertension and heavy alcohol intake, which contribute to the weakening and enlargement of the heart muscle. Viral infections, such as Coxsackievirus B, adenoviruses, and influenza, can lead to DCM by causing inflammation and damage to heart tissue. Certain chemotherapeutic agents, including daunorubicin,...
329
Cardiomyopathy V: Interprofessional Care01:29

Cardiomyopathy V: Interprofessional Care

216
Managing cardiomyopathy involves addressing underlying or precipitating causes, treating heart failure with medications, and implementing dietary changes and a balanced exercise and rest regimen.Lifestyle ModificationsCardiomyopathy patients should adopt a low-sodium diet to reduce fluid retention and manage heart failure. A personalized exercise and rest plan helps maintain physical fitness without overstraining the heart. Avoiding alcohol and tobacco is essential to prevent further damage to...
216
Cardiomyopathy IV: Restrictive Cardiomyopathy01:29

Cardiomyopathy IV: Restrictive Cardiomyopathy

347
Restrictive cardiomyopathy (RCM) is a rare heart muscle disease characterized by impaired ventricular filling due to stiffened ventricular walls, leading to significant diastolic dysfunction.EtiologyRestrictive cardiomyopathy can arise from both inherited and acquired diseases, many of which are systemic. It is categorized into four main types: infiltrative, storage, non-infiltrative, and endomyocardial diseases.Infiltrative diseases, such as amyloidosis, lead to RCM by depositing amyloid...
347
Cardiopulmonary Resuscitation III: AED Use01:23

Cardiopulmonary Resuscitation III: AED Use

382
Introduction to AEDAn Automated External Defibrillator (AED) is a portable medical device that analyzes the heart's rhythm and, if necessary, delivers an electrical shock to help the heart re-establish an effective rhythm during sudden cardiac arrest (SCA). SCA occurs when the heart suddenly and unexpectedly stops beating, leading to a loss of blood flow to the brain and other vital organs. In such emergencies, time is of the essence, and using an AED, combined with Cardiopulmonary...
382
Cardiomyopathy III: Hypertrophic Cardiomyopathy01:29

Cardiomyopathy III: Hypertrophic Cardiomyopathy

277
Hypertrophic cardiomyopathy, or HCM, is an autosomal dominant genetic disorder characterized by asymmetric left ventricular hypertrophy without ventricular dilation. It is more common in men and is typically diagnosed in young, athletic adults.EtiologyHCM is primarily genetic and is caused by mutations in genes encoding sarcomeric proteins. Researchers have identified over 1400 mutations across at least 11 different genes. Among these, the most frequently occurring mutations are found in the...
277

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Related Experiment Video

Updated: Dec 20, 2025

Benefits of Cardiac Resynchronization Therapy in an Asynchronous Heart Failure Model Induced by Left Bundle Branch Ablation and Rapid Pacing
12:45

Benefits of Cardiac Resynchronization Therapy in an Asynchronous Heart Failure Model Induced by Left Bundle Branch Ablation and Rapid Pacing

Published on: December 11, 2017

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Advances in Cardiac Resynchronization Therapy.

Asif Jafferani1, Miguel A Leal1

  • 1Department of Medicine, University of Wisconsin School of Medicine and Public Health, Madison, WI, USA.

The Journal of Innovations in Cardiac Rhythm Management
|June 2, 2020
PubMed
Summary
This summary is machine-generated.

Cardiac resynchronization therapy (CRT) improves outcomes in advanced heart failure but not for all patients. Optimizing patient selection, lead placement, and utilizing new algorithms are key for successful CRT.

Keywords:
Adaptive pacingcardiac resynchronization therapyleadless CRT systemsmultipoint pacing

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Area of Science:

  • Cardiology
  • Medical Devices
  • Heart Failure Management

Background:

  • Cardiac resynchronization therapy (CRT) is vital for reducing morbidity and mortality in advanced heart failure.
  • A notable percentage of patients do not achieve significant clinical benefits from CRT.

Purpose of the Study:

  • To review factors influencing successful CRT outcomes.
  • To discuss current and future advancements in CRT.

Main Methods:

  • Review of existing literature on CRT patient selection.
  • Analysis of factors affecting left ventricular lead positioning and postimplant management.
  • Examination of novel CRT device algorithms and technologies.

Main Results:

  • Successful CRT relies on precise patient selection and optimal lead placement.
  • Postimplant management significantly impacts patient response to CRT.
  • Emerging technologies like multipoint pacing and leadless CRT show promise.

Conclusions:

  • Improving CRT efficacy requires a multifaceted approach.
  • Future directions include advanced algorithms and leadless CRT for better patient outcomes.