Physiologic Pacing for Symptomatic First-Degree Heart Block

"All patients will undergo a dual chamber Medtronic pacemaker implantation meeting approved indications for pacemaker implantation per Centers for Medicare \& Medicaid Services (CMS) guidelines.~Pacemaker Model: Azure XT W1DR01. Right ventricular lead model: Medtronic 3830."

This device programming attempts to increase the amount of ventricular pacing via the Medtronic 3830 lead. Since the enrolled patients have a prolonged PR interval, this programming attempts to synchronic atrial and ventricular contractions.

This device programming attempts to encourage native conduction and minimize ventricular pacing via the Medtronic 3830 lead. This programming attempts to minimize ventricular pacing, which has been associated with worse outcomes by causing ventricular dyssynchrony between the left and right ventricles.