Optimizing Operation; Automatic Detection Of Implantation - sorin REPLY DR Manual De Implante

Operation: 1. Arrhythmia is identified by detection of abrupt
acceleration of atrial rhythm. 2. When atrial arrhythmia is confirmed,
the pacemaker converts to DDI(R) mode at a pacing rate that
decreases gradually until it reaches the sensor-driven rate or the
basic rate or the rest rate. 3. As soon as the arrhythmia ceases, the
pacing rate is gradually increased up to the atrial rate (or sensor-
driven rate). The pacemaker then converts to DDD mode: the atrium
and ventricle are resynchronized.
Limitation: Mode switching occurs only if atrial arrhythmia is greater
-1
.
than 120 min

7.8. OPTIMIZING OPERATION

i Automatic detection of implantation
Operation: At implantation, once the ventricular lead has been
connected to the pacemaker, 1. the device paces and senses the
ventricle in both unipolar and bipolar fashion (Uni+Bi) by means of a
temporary connection between the ring and the case. IF a bipolar
ventricular lead is used AND the device is not in contact with the
tissue, Uni+Bi pacing will result in bipolar pacing of the ventricle,
which is a safety feature for pacing-dependant patients. 2. At the
same time, the device automatically checks if the ventricular lead is
still connected to the pacemaker and the case is in contact with the
tissue by launching a unipolar ventricular impedance test. After five
minutes, the device repeats this test to see if the ventricular lead is
still connected to the pacemaker and the case still in contact with the
tissue. If yes, the detection of implantation is confirmed. If no, a new
check is done by the device every five minutes, until the ventricular
lead connection and the contact between the pacemaker and the
tissue are confirmed.
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ENGLISH