The clinical characteristics of three QRS groups are summarized in Table I. The mean PR interval was longest in QRS Group 3 and shortest in QRS Group 1 (200 ± 26 vs. 181.6 ± 33 ms, P = 0.011). Among ...
Cardiac resynchronization has emerged as a highly effective therapy for heart failure. However, up to 40% of patients do not benefit from this treatment. In this Review, we discuss the potential role ...
Background: Cardiac resynchronization therapy (CRT) has emerged as an established therapy for congestive heart failure. However, up to 30% of patients fail to respond to CRT despite prolonged QRS.
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