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Related Experiment Videos

A prospective randomized comparison between fixed rate response programming and automatic rate response optimization

A Schuchert1, H van Langen, K Michels

  • 1Medical Clinic, Department of Cardiology, University Hospital Eppendorf, Hamburg, Germany.

Cardiology
|February 6, 1998
PubMed
Summary
This summary is machine-generated.

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Fixed programming of pacemaker activity rate response is as effective as automatic optimization. This study found no significant differences in patient complaints or pacing percentages between the two methods for rate-responsive pacing.

Area of Science:

  • Cardiology
  • Biomedical Engineering

Background:

  • Pacemaker activity rate response programming relies on physician experience and limited patient activity data.
  • Current methods for optimizing rate-responsive pacing may not fully capture individual patient needs.

Purpose of the Study:

  • To compare a new continuous automatic adjustment of activity rate response (rate response optimization - OPT) with fixed programming (FIXED).
  • To evaluate patient complaints and pacing parameters after one month of follow-up.

Main Methods:

  • 37 patients with Thera DR pacemakers were randomized to either FIXED or OPT programming.
  • Complaints related to rate-responsive pacing and pacing percentages were assessed after one month.
  • Activity sensor parameters were programmed similarly across both groups.

Related Experiment Videos

Main Results:

  • No patients in the FIXED group reported complaints.
  • One patient (3%) in the OPT group reported palpitations, leading to reprogramming.
  • No significant differences were found in atrium/ventricle pacing percentages between FIXED (56±31%) and OPT (58±35%).

Conclusions:

  • Fixed rate response programming, based on clinical judgment, resulted in symptom-free DDDR pacing in this cohort.
  • No significant differences in patient complaints or pacing parameters were detected between fixed and optimized rate response programming.
  • The study suggests that fixed programming may be sufficient for achieving effective rate-responsive pacing.