Specifications

DOO/AOO/VOO Modes
Indications for the DOO, AOO, and VOO
Modes
The DOO, AOO, or VOO mode may be indicated as follows:
■
They may be used intraoperatively to reduce the likelihood of
triggering pacing outputs from electrocautery.
■
Asynchronous modes may also be used in patients who exhibit
inappropriate inhibition due to muscle tremors, and so forth, or in
patients who work in environments with excessive electromagnetic
interference (EMI).
Contraindications for the DOO, AOO, and
VOO Modes
The DOO, AOO, and VOO modes are contraindicated in the presence of
the following conditions:
■
Likelihood of competition between paced and intrinsic rhythms.
■
Presence of AV conduction disturbances.
10-34 Understanding Pacemaker Operations
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196407001 Rev A