St. Jude Medical Merlin PSA EX3100, Руководство пользователя

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8-2 Mode Descriptions
DDI
(Dual-Chamber Pacing, Sensing, and Inhibition; No Atrial Tracking)
The DDI mode is a non-tracking, dual-chamber mode in which sensed atrial activity does not cause a
change in timing. Atrial tachycardias do not result in increased pacing rates.
Figure 8-2. DDI Mode timing diagram
DOO
(Dual-Chamber Asynchronous Pacing)
In DOO mode, the device paces in the atrium and ventricle(s) at the programmed Base Rate and
AV Delay regardless of intrinsic activity.
CAUTION
DOO mode is primarily intended for temporary use. Long-term use
may result in competitive pacing, which may induce potentially
dangerous tachyarrhythmias.
Refractory Period
Blanking Period
Alert Period AV Delay
Output Pulse
A
V
Programmed Rate
PVC AP
VS VS VP VP
AP AS