Specifications

AAIR Mode
Indications for the AAIR Mode
The AAIR mode may be indicated for certain patients who have
chronotropic incompetence and an anticipated moderate to high level of
physical activity, normal AV conduction, and little likelihood of
progression of AV block or induction of AV block as the result of drug
therapy. Specific indications are as follows:
■
Symptomatic sinus node dysfunction, provided AV conduction is
shown to be adequate by appropriate studies.
■
Hemodynamic enhancement through rate adjustment in patients who
have bradycardia and symptoms of impaired cardiac output, provided
AV conduction is shown to be adequate by appropriate studies.
Contraindications for the AAIR Mode
The AAIR mode is contraindicated in the presence of the following
conditions:
■
Pre-existing AV conduction delay or block or if decremental AV
conduction is demonstrated at slow paced rates (e.g., < 140 ppm) by
appropriate tests.
■
Inadequate atrial sensing and atrial pacing threshold.
■
An inexcitable atrium.
10-22 Understanding Pacemaker Operations
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