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  1. Article

    Open Access

    Echocardiographic AV-interval optimization in patients with reduced left ventricular function

    Ritter's method is a tool used to optimize AV delay in DDD pacemaker patients with normal left ventricular function only. The goal of our study was to evaluate Ritter's method in AV delay-interval optimization...

    C Melzer, AC Borges, F Knebel, WS Richter, W Combs, G Baumann in Cardiovascular Ultrasound (2004)