This study is enrolling subjects with high blood pressure who just received a pacemaker (an implantable device placed in the upper chest that monitors the heart rate and can send an electrical signal if needed to pace the heart to maintain a normal heart rate) or are about to undergo a pacemaker implant. This is a randomized study meaning subjects will be assigned by chance to have a new program downloaded to the pacemaker to help control blood pressure or to not receive the program. Subjects will have a 50:50 chance to receive the program. The new program is called AVIM therapy and it is investigational meaning it has not been approved by the US Food and Drug Administration. (FDA) Participation in this study will last about 36 months and include about 10 visits. Study related procedures include blood pressure monitoring including wearing a 24 hour blood pressure monitor, blood work, questionnaires, echocardiogram - an ultrasound test of the heart, pacemaker interrogation (meaning your pacemaker is checked to obtain the information stored on it) and randomization. Study related risks include risks related to the software download such as the risk that the software will not help control blood pressure, risks related to study related procedures and the risk of the loss of confidentiality.