Rate Acceleration; Av Delay Shortening; Rest Rate - sorin REPLY DR Manual De Implante

The Dplus/DDIR mode is a Dplus mode with Rate Response only
during Mode Switching.
i Rate acceleration
The Acceleration function is used to suppress the cardiac pause and
to reduce the vasodepressive response that accompanies it.
Indication: Acceleration should be used only for patients presenting
sinocarotid hypersensitivity with vasodepressive response.
Operation: 1. The pacing rate is gradually increased (up to the
programmed percentage) when an abrupt drop in sinus rate is
sensed. 2. The rate is then gradually reduced in accordance with the
principle of rate smoothing.
Limitation: The pacing rate induced by rate acceleration is limited to
120 min-1 (or to the maximum rate if the latter is lower).
Programming constraint: 1. This function is available when Dplus
or DDD mode is programmed. 2. If any of the AA prevention
functions is activated, acceleration is forced to 0% and is not
programmable.
i AV delay shortening
The Acceleration function (only) may be accompanied by a
shortening of the AV delay, intended to increase hemodynamic
response.
Indication: Shortening of the AV delay should be used only for
patients presenting sinocarotid hypersensitivity with vasodepressive
response.
i Rest rate
The rest rate is the pacing rate to which the pacemaker adjusts when
it senses that the patient is sleeping or resting.
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