Which echocardiographic definition should be used to define response to cardiac resynchronization therapy?

@article{Antnio2009WhichED,
  title={Which echocardiographic definition should be used to define response to cardiac resynchronization therapy?},
  author={Nat{\'a}lia Ant{\'o}nio and Rog{\'e}rio Teixeira and Carolina N{\'e}grier Lourenço and F{\'a}tima Saraiva and Lourenço Coelho and Rui Martins and Miguel Ventura and Jo{\~a}o Crist{\'o}v{\~a}o and Henrique Guimar{\~a}es and Lu{\'i}s Elvas and Lino Gonçalves and Lu{\'i}s Augusto Provid{\^e}ncia},
  journal={Revista portuguesa de cardiologia : orgao oficial da Sociedade Portuguesa de Cardiologia = Portuguese journal of cardiology : an official journal of the Portuguese Society of Cardiology},
  year={2009},
  volume={28 9},
  pages={943-58}
}
INTRODUCTION The definition of response to cardiac resynchronization therapy (CRT) remains controversial, with different criteria being used to define a positive response. The PROSPECT trial recently demonstrated that echocardiography is not sufficiently accurate to identify responders to CRT. However, it is possible that the definition used in this study was not the most appropriate. OBJECTIVE To compare different echocardiographic definitions of response to CRT with peak oxygen consumption… CONTINUE READING