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Related Concept Videos

Cardiomyopathy IV: Restrictive Cardiomyopathy01:29

Cardiomyopathy IV: Restrictive Cardiomyopathy

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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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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Related Experiment Video

Updated: Jul 27, 2026

Thermal Ablation for the Treatment of Abdominal Tumors
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Cardiac radioablation-A systematic review.

Martijn H van der Ree1, Oliver Blanck2, Jacqueline Limpens3

  • 1Heart Center, Department of Clinical and Experimental Cardiology, Amsterdam UMC, University of Amsterdam, Cardiovascular Sciences, Amsterdam, The Netherlands.

Heart Rhythm
|March 25, 2020
PubMed
Summary

Stereotactic radioablation shows promise for treating drug-resistant ventricular arrhythmias, reducing episodes by over 85% in patients. However, further research is needed to confirm efficacy and safety due to limited evidence quality.

Keywords:
ArrhythmiasAtrial fibrillationRadioablationStereotactic body radiotherapySystematic reviewVentricular fibrillationVentricular tachycardia

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Area of Science:

  • Cardiology
  • Radiation Oncology
  • Electrophysiology

Background:

  • Ventricular arrhythmias pose a significant clinical challenge, with limited success rates for current treatments like drugs and catheter ablation.
  • Stereotactic body radiotherapy (SBRT) has emerged as a novel therapeutic option for patients with refractory ventricular arrhythmias.

Purpose of the Study:

  • To systematically review the electrophysiological and histopathological effects of radioablation in preclinical and clinical studies.
  • To assess the efficacy and safety of radioablation for ventricular arrhythmias.

Main Methods:

  • Systematic literature search across multiple databases (MEDLINE, Embase, Cochrane, Web of Science, etc.) from inception to September 2019.
  • Inclusion of 13 preclinical and 10 clinical publications, with risk of bias and quality assessment.
  • Narrative synthesis due to heterogeneity in study designs.

Main Results:

  • Radioablation induced significant electrophysiological changes in animals, including reduced voltage amplitude (93.2%) and atrioventricular block (78.3%).
  • Ventricular arrhythmia inducibility was reduced by 75% in animal models.
  • In patients with ventricular tachycardia, radioablation achieved >85% reduction in arrhythmia episodes with a favorable short-term safety profile.

Conclusions:

  • Radioablation demonstrates promising efficacy for therapy-refractory ventricular arrhythmias, particularly ventricular tachycardia.
  • Current preclinical and clinical evidence is limited in quantity and quality, necessitating further rigorous research.
  • Stereotactic radioablation represents a potential alternative for patients unresponsive to conventional treatments.