Because G.P.'s dysrhythmia is causing unacceptable symptoms, he is taken to surgery and a permanent DDDR pacemaker is placed and set at a rate of 70 beats/min
What does the code DDDR mean?
DDDR pacing is used for patients with a symptomatic bradycardia in which the atrium can be
stimulated by a pacemaker but atrioventricular conduction is, or possibly might become, unreliable.
The first D indicates the heart chamber paced, meaning dual pacing, because both the atrium and
ventricle are paced. The second D indicates the chamber sensed, meaning dual sensing, because
both the atrium and ventricle are sensed. The third D indicates how the pacemaker will respond to
the patient's own activity; D indicates dual response to sensing, either triggered or inhibited. The R
indicates rate-responsive pacing.
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