Dr. Aurelio Quesada is currently the Head of the Arrhythmia Unit, Cardiology Dpt., General University Hospital of Valencia, and Professor of Cardiovascular Diseases at the School of Medicine of the Catholic University of Valencia San Vicente Mártir, (Valencia, Spain). He received his M.Sc. degree from the University of Granada, Spain (1976–1982) and his Ph.D. from the University of Valencia, Spain, (1986–1990). His research is related to clinical aspects of CIEDs, i.e., influence of atrial tachyarrhythmias, right ventricular pacing, etc., in pacemakers, CRT devices, and ICDs. He is the au-thor of more than 100 peer-reviewed papers and the editor of 4 books. He has participated in several top CRT trials (CARE-HF, REVERSE, and MADIT CRT) and been involved in the steering committee of others (DATAS, Prefer MVP, MORE CARE, MADIT CRT LIFR). He is a reviewer for MPDI Journals, BMJ, AMJ, Europace, etc., Member of the EHRA, and Fellow of the European Society of Cardiology.