Therefore, the aim of the present study was (1) to investigate the effect of baseline PR interval on clinical outcome in patients with non-LBBB, and (2) to assess clinical response to CRT-D versus ...

The PR interval is the time from the beginning of the P wave (atrial depolarization) to the beginning of the QRS complex (ventricular depolarization). The normal PR interval measures 0.12-0.20 seconds ...

THE electrocardiographic picture of prolonged QRS-complex duration with short PR interval was the subject of isolated reports 1,2 until Wolff, Parkinson and White 3 described the clinical syndrome of ...

Background The PR interval is a ubiquitous parameter available to all clinicians. Studies on associated risk have been conflicting, often limited by sample sizes and one ECG per individual. The study ...