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2020, Number 1

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CorSalud 2020; 12 (1)

QRS variation –index or percentage– to predict response to cardiac resynchronization therapy?

Vásquez QCJ

Language: Spanish
References: 19
Page: 117-119
PDF size: 189.88 Kb.


Text Extraction

To the Editor:

Cardiac resynchronization therapy (CRT) was created as a bridge to the heart transplantation, that is why no one knew at the beginning what it was going to represent a posteriori for cardiology and the patients; however, many publications describe the super-responders with an excellent quality of life and a NYHA (New York Heart Association) functional class I. There is still approximately a 30% of patients who do not respond well to the CRT, that is why, the reasons why CRT is not effective in this patients’ subgroup are still being researched. In our opinion, and without disagreeing with many researchers who publish their results in this regard, we should look for what is failing in the CRT, in order not to wear ourselves out by describing variables that allow to recognize the response. Maybe, the identification of other type of indicators could allow us to modify the implantation procedure or the device programming, this way improving the response of those identified as possible non-responders.


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