Functions And Parameters; Pacing Modes; Ddta(R) Mode - sorin REPLY DR Manual De Implante

7. FUNCTIONS AND PARAMETERS

7.1. PACING MODES

The pacing mode determines pacemaker operation when pacing and
sensing. The meanings of the codes (e.g., DDD, AOO) are provided
in Appendix DD to Standard EN 45502-2-1. The SafeR mode is
described in the section "Therapeutic improvements." The DDTA,
DDTV, and DDTAV modes are special modes developed by Sorin
CRM (see description below).
Contraindications: 1. AAI(R) pacing is contraindicated where AV
conduction is impaired. 2. Asynchronous pacing is contraindicated
when there is competition between the patient's intrinsic rhythm and
the pacemaker. 3. DDD pacing is contraindicated in patients with
chronic atrial fibrillation or flutter, or in those with slow retrograde
conduction, which may induce Pacemaker- Mediated Tachycardia.
i DDTA(R) Mode
Dual-chamber DDD(R) pacing with triggered atrial pacing.
Both chambers are paced at the basic rate (DDTA) or at the sensor-
driven rate (DDTAR) in the absence of intrinsic activity. A sensed P
wave triggers atrial pacing and ventricular pacing after the
programmed AV delay. A sensed R wave inhibits ventricular pacing if
it occurs during the AV delay and inhibits atrial and ventricular pacing
if it occurs outside the AV delay.
In this mode, atrial pacing may be triggered while maintaining
atrioventricular synchronization.
This mode is not intended to be programmed permanently.
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