Ingenio Device Algorithm Study (IVORY)

Inclusion Criteria:

• Subjects who are willing and capable of providing informed consent to undergo a device implant and to participate in all testing associated with this clinical study;
• Subjects whose age is 18 or above, or of legal age to give informed consent specific to national law;
• Subjects indicated for a dual chamber pacemaker or a CRT-P device according to class I or class II indications of the standard ESC or ACC / AHA implant guidelines;
• Subjects who are planned to be implanted with all leads intended for a specific device type (dual chamber pacemaker: atrial and right ventricular lead, CRT-P: atrial, right and left ventricular lead) or are already implanted with such leads;
• Subjects who receive or are implanted with a bipolar atrial lead.

Exclusion Criteria:

• Women of childbearing potential who are or might be pregnant at the time of the study (method of assessment upon physician's discretion);
• Enrolled in any other concurrent study, with the exception of local mandatory governmental registries and observational studies/registries that are not in conflict or affect
• Schedule of procedures for IVORY (i.e. should not cause additional or missed visits);
• Programming of devices for IVORY per CIP;
• IVORY outcome (i.e. involve medications that could affect the heart rate of the subject);
• Conduct of IVORY per GCP / ISO 14 155:2011 / local regulations.
• Subjects who live at such a distance from the clinic that travels for FU visits at a study center would be unusually difficult or burdensome for the subject;
• Inability or refusal to comply with the FU schedule;
• A life expectancy of less than 12 months, per physician discretion;
• Subjects who are planned to be programmed to a pacing mode other than DDD / DDDR during the study period.