Table 1.

Programming Instructions for the SafeR and DDD Groups, Respectively

Parameter	SafeR Group	DDD Group
Mode	SafeR	DDD
Sensed AV delay at rest	N/A	250 ms
Sensed AV delay at exercise	N/A	250 ms
Sensed AV delay extension	N/A	65 ms
Ventricular pause	3 s	N/A
AVB 1 commutation	Exercise only	N/A
Basic rate	30 to 70 bpm
Max rate	Nominal settings
Hysteresis	0%
Mode switch	On
Postventricular atrial blanking period	155 ms
Smoothing	Off
Atrial sensing threshold	0.6 mV if possible
Atrial sensing polarity	Bipolar
Ventricular sensing polarity	Bipolar if possible
AIDA* follow-up duration	Automatic 6-month (day/day)

AV indicates atrioventricular; AVB, atrioventricular block; DDD, intrinsic atrioventricular conduction and dual-chamber pacemaker; N/A, not applicable.

^*AIDA (Automatic Interpretation for Data Analysis) provides device-based diagnosis of recorded statistics, including heart rate, paced/sensed events, automatic mode switches on AF episodes and SafeR statistics such as atrioventricular block episodes of first, second, and third degree.