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Journal of Nuclear Cardiology

, Volume 25, Issue 2, pp 526–531 | Cite as

Assessment of dyssynchrony by gated myocardial perfusion imaging does not improve patient management

  • Ran Lee
  • Ravi V. Shah
  • Venkatesh L. Murthy
Debate Article

Abstract

Clinical trials have demonstrated improved outcomes with cardiac resynchronization therapy in patients with heart failure and electrical evidence of dyssynchrony. There has been intense effort at developing imaging markers of dyssynchrony with the aim of improved risk stratification. However, these efforts have not been fruitful to date. This article discusses mechanisms of cardiac dyssynchrony, reviews clinical data supporting resynchronization therapy, and addresses the lack of convincing evidence to support the use of noninvasive imaging measures of dyssynchrony in improving patient management.

Keywords

Cardiomyopathy Heart failure Dyssynchrony Cardiac resynchronization therapy Dyssynchrony imaging 

Notes

Disclosures

Dr. Lee has no relevant disclosures. Dr. Murthy owns stock in General Electric, Cardinal Health and Covidien. He has received speaker’s fees from Bracco Diagnostics and Ionetix. He has received research funding from INVIA Medical Imaging Solutions. Drs. Shah and Murthy are supported by Grant 1R01HL136685 from the National Heart, Lung, and Blood Institute.

Supplementary material

12350_2017_1022_MOESM1_ESM.pptx (316 kb)
Supplementary material 1 (PPTX 315 kb)

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Copyright information

© American Society of Nuclear Cardiology 2017

Authors and Affiliations

  1. 1.Frankel Cardiovascular Center, Michigan MedicineUniversity of MichiganAnn ArborUSA
  2. 2.Massachusetts General HospitalBostonUSA

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