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Tachycardia-Induced Cardiomyopathy As a Chronic Heart Failure Model in Swine
10:08

Tachycardia-Induced Cardiomyopathy As a Chronic Heart Failure Model in Swine

Published on: February 17, 2018

Tachycardia-mediated cardiomyopathy: recognition and management

Rakesh Gopinathannair1, Renee Sullivan, Brian Olshansky

  • 1University of Iowa Hospitals, 200 Hawkins Drive, 4426a JCP, Iowa City, IA 52242, USA.

Current Heart Failure Reports
|December 2, 2009
PubMed

Insights

Persistent tachycardia can cause heart dysfunction, known as tachycardia-mediated cardiomyopathy. Early management can improve heart function, but lasting cellular changes may increase sudden death risk.

Area of Science:

  • Cardiology
  • Electrophysiology
  • Heart Failure

Background:

  • Tachycardia-mediated cardiomyopathy (TMC) results from persistent rapid heart rhythms causing ventricular dysfunction.
  • Cellular and extracellular changes develop over time, potentially leading to significant heart muscle impairment.

Purpose of the Study:

  • To review the etiology, pathophysiology, and clinical manifestations of TMC.
  • To discuss current and future management strategies for TMC, focusing on prevention and early recognition.

Main Methods:

  • Literature review of studies on tachycardia-mediated cardiomyopathy.
  • Analysis of cellular mechanisms and clinical outcomes related to sustained tachycardia.

Main Results:

  • Pharmacologic and procedural interventions can lead to rapid symptom recovery and improved ejection fraction.
  • Persistent ultrastructural changes remain a concern, potentially causing rapid functional decline or sudden death, even after normalization of ejection fraction.

Conclusions:

  • While TMC is increasingly understood, ongoing research is crucial for prevention and optimal acute and long-term management.
  • Effective management aims to reduce heart failure incidence and mitigate the risk of sudden cardiac death in affected individuals.

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