Previous studies have shown that the presence of left bundle branch block (LBBB) is associated with an increased risk of cardiac mortality and heart failure (HF). Recently, new criteria to define strict LBBB have been proposed: QRS duration ≥140 ms for men and ≥130 ms for women, along with mid-QRS notching or slurring in ≥2 contiguous leads.
Prevalence and clinical significance of left bundle branch block according to classical or strict definition criteria in permanent pacemaker patients / Mazza, Andrea; Bendini, Maria Grazia; De Cristofaro, Raffaele; Lovecchio, Mariolina; Valsecchi, Sergio; Leggio, Massimo; Boriani, Giuseppe. - In: CLINICAL CARDIOLOGY. - ISSN 0160-9289. - 40:6(2017), pp. 377-382. [10.1002/clc.22673]
Prevalence and clinical significance of left bundle branch block according to classical or strict definition criteria in permanent pacemaker patients
BORIANI, Giuseppe
2017
Abstract
Previous studies have shown that the presence of left bundle branch block (LBBB) is associated with an increased risk of cardiac mortality and heart failure (HF). Recently, new criteria to define strict LBBB have been proposed: QRS duration ≥140 ms for men and ≥130 ms for women, along with mid-QRS notching or slurring in ≥2 contiguous leads.
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