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Vincenti A. La terapia di resincronizzazione cardiaca nei pazienti con QRS stretto: quali benefici? [What benefits of cardiac resynchronization therapy in patients with narrow QRS?]. G Ital Cardiol (Rome). 2012;13(10):157S-159Sdoi: 10.1714/1167.12941.
Vincenti, A. (2012). La terapia di resincronizzazione cardiaca nei pazienti con QRS stretto: quali benefici? [What benefits of cardiac resynchronization therapy in patients with narrow QRS?]. Giornale italiano di cardiologia (2006), 13(10), 157S-159S. https://doi.org/10.1714/1167.12941
Vincenti, Antonio. "La terapia di resincronizzazione cardiaca nei pazienti con QRS stretto: quali benefici?" [What benefits of cardiac resynchronization therapy in patients with narrow QRS?]. Giornale italiano di cardiologia (2006) vol. 13,10 (2012): 157S-159S. doi: https://doi.org/10.1714/1167.12941
Vincenti A. La terapia di resincronizzazione cardiaca nei pazienti con QRS stretto: quali benefici? [What benefits of cardiac resynchronization therapy in patients with narrow QRS?]. G Ital Cardiol (Rome). 2012 Oct;13(10):157S-159S. doi: 10.1714/1167.12941. Italian. PMID: 23096396.
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G Ital Cardiol (Rome). 2012 Oct;13(10):157S-159S. doi: 10.1714/1167.12941.

[What benefits of cardiac resynchronization therapy in patients with narrow QRS?].

Giornale italiano di cardiologia (2006)

[Article in Italian]
Antonio Vincenti

Affiliations

  1. Dipartimento Cardio-Toraco-Vascolare, Ospedale San Gerardo, Monza. [email protected]

PMID: 23096396 DOI: 10.1714/1167.12941

Abstract

Cardiac resynchronization therapy (CRT) is indicated for patients with electrical dyssynchrony (QRS ≥120 ms). However, mechanical dyssynchrony may also occur in patients with narrow QRS. Echocardiographic criteria of intraventricular dyssynchrony are not univocal; moreover, responsiveness to CRT depends on the criteria utilized for judgment. A unique randomized trial compared CRT with no therapy in patients with heart failure and narrow QRS, but it failed to demonstrate increased peak oxygen consumption with CRT. The results of this study probably depend on the lack of correspondence between activation and contraction delays, at least in ischemic cardiomyopathy.

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