Prof. Jastrzebski, MD, PhD graduated from the Jagiellonian University in Kraków, Poland, in 1995 and works in the 1st. Dep. of Cardiology and Interventional Electrocardiology UJ. After short stays in several centers in Europe and USA, he introduced new treatment options in his EP lab: ICDs, RF ablations, 3D abl, fluoroless abl, CRT, cardiac venoplasty, cryoballoons etc. He performed over 6000 EP procedures including > 800 WPW abl., > 500 cryoballoons, > 500 CRTs and > 300 His bundle implants. As the first electrophysiologist in Poland he obtained both EHRA certificates (“Clinical Cardiac Pacing” 2006, “Invasive Electrophysiology” 2007) and both Polish Cardiac Society certificates: "Expert in Electrophysiology", "Expert in Electrotherapy". Prof. Jastrzebski published > 180 papers and especially values his CRT research (“delta QRS” ,”LV QRS”, etc.), the “VT score method” for diagnosis of wide QRS complex tachycardias, and the introduction of the “Programmed His bundle pacing” maneuver.