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Related Experiment Videos

Clinical performance of automatic closed-loop stimulation systems.

Lothar Griesbach¹, Brigitta Gestrich, Dariusz Wojciechowski

¹Department of Internal Medicine, District General Hospital, Kirchberg, Germany. edv@kkh-kirchberg.de

Pacing and Clinical Electrophysiology : PACE

|August 14, 2003

Summary

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Inos pacemakers with Closed-Loop Stimulation (CLS) effectively adjust pacing rates to daily activities and patient needs. This study demonstrates their appropriateness and long-term stability in patients with sinus node disease.

Area of Science:

Cardiology
Biomedical Engineering
Medical Devices

Background:

Inos pacemakers utilize Closed-Loop Stimulation (CLS) to dynamically regulate heart rate based on physiological demands.
Physicians program only rate limits, allowing internal parameters to adapt to patient conditions.

Purpose of the Study:

To evaluate the appropriateness of CLS rates during daily activities in patients with sinus node disease.
To assess the long-term stability of the Inos pacemaker system.

Main Methods:

Seventy-two patients with sinus node disease were enrolled in the multicenter RAPID study.
Pacemaker data on heart rate response to various daily activities and 24-hour trends were analyzed.

Main Results:

Related Experiment Videos

Pacemakers differentiated activity levels, showing distinct peak rates for climbing stairs, descending stairs, and walking (P < 0.001).
CLS rates during cognitive tests were significantly higher than at rest (P = 0.002).
Long-term stability was satisfactory, with minor exceptions of occasional fast nocturnal pacing in two patients.

Conclusions:

The Inos pacemaker system demonstrates sensitivity to physiological demands, adapting automatically to patient needs.
The CLS technology offers appropriate rate control and long-term stability for patients with sinus node disease, requiring minimal programming.