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Related Concept Videos

Cardiomyopathy V: Interprofessional Care01:29

Cardiomyopathy V: Interprofessional Care

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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...
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Cardiomyopathy II: Dilated Cardiomyopathy01:30

Cardiomyopathy II: Dilated Cardiomyopathy

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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,...
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Acute Coronary Syndrome III: Diagnostic Studies01:30

Acute Coronary Syndrome III: Diagnostic Studies

23
Diagnosing acute coronary syndrome or ACS begins with a thorough patient history. Notable symptoms include central, crushing chest pain radiating to the left arm, neck, jaw, or back, along with shortness of breath, sweating (diaphoresis), nausea, vomiting, dizziness, and palpitations.It is crucial to note any history of cardiac illnesses and assess risk factors, including age, gender, smoking, hypertension, diabetes, hyperlipidemia, and a sedentary lifestyle.During physical examination, vital...
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Heart Failure VI: Adjunct Therapies01:22

Heart Failure VI: Adjunct Therapies

26
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.
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Cardiomyopathy III: Hypertrophic Cardiomyopathy01:29

Cardiomyopathy III: Hypertrophic Cardiomyopathy

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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...
45
Cardiomyopathy IV: Restrictive Cardiomyopathy01:29

Cardiomyopathy IV: Restrictive Cardiomyopathy

25
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...
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Related Experiment Video

Updated: Sep 7, 2025

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

Angelo Auricchio1, Tardu Özkartal1

  • 1Cardiocentro Ticino Institute, Ente Ospedaliero Cantonale, Via Tesserete 48, 6900 Lugano, Switzerland.

Cardiac Electrophysiology Clinics
|June 17, 2022
PubMed
Summary

Cardiac resynchronization therapy (CRT) is established but requires further research. Ongoing studies aim to improve patient selection, lead placement, and device programming for better CRT response in heart failure patients.

Keywords:
Cardiac imagingCardiac resynchronization therapyClinical studiesImplantable cardioverter-defibrillatorImplantationPacemaker

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Area of Science:

  • Cardiology
  • Medical Devices
  • Heart Failure Research

Background:

  • Cardiac resynchronization therapy (CRT) is a clinically established treatment for heart failure patients with ventricular conduction abnormalities.
  • Despite its established role, a significant proportion of patients do not respond optimally to CRT, necessitating further research.

Purpose of the Study:

  • To review and discuss ongoing research aimed at enhancing the effectiveness of CRT.
  • To identify key areas for improvement in CRT patient selection, delivery, and device optimization.

Main Methods:

  • Review of current and ongoing studies in various domains of CRT research.
  • Discussion of novel diagnostic tools and extended clinical criteria for patient selection.
  • Analysis of advancements in left ventricular lead positioning and pacing site optimization.
  • Exploration of strategies for optimizing CRT programming and device selection.

Main Results:

  • The article highlights the importance of understanding the relationship between electrical and mechanical dyssynchrony in heart failure.
  • It identifies several critical research areas that hold promise for improving CRT outcomes.
  • Ongoing studies focus on refining patient selection and optimizing therapy delivery.

Conclusions:

  • Further research in patient selection, lead placement, programming, and device choice is crucial for maximizing CRT benefits.
  • A deeper understanding of electro-mechanical coupling in heart failure is essential for advancing CRT.
  • Optimizing CRT delivery holds significant potential to improve patient response rates.