Tighter is better: Can a simple and cost‐free parameter predict response to cardiac synchronization therapy?
Giuseppe Coppola,
Cristina Madaudo,
Giosuè Mascioli
et al.
Abstract:BackgroundSeveral studies have evaluated the role of QRS duration (QRSd) or QRS narrowing as a predictor of response to cardiac resynchronization therapy (CRT) to reduce nonresponders.AimOur study aimed to determine the correlation between the relative change in QRS index (QI) compared to clinical outcome and prognosis in patients who underwent CRT implantation.MethodsA three‐centers study involving 398 patients with a CRT device was conducted. Clinical, echocardiographic and pharmacological variables, QRSd be… Show more
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