PMID: 9558689Apr 29, 1998Paper

Cardiac rehabilitation in patients with rate responsive pacemakers

Pacing and Clinical Electrophysiology : PACE
E M GrecoL Citelli

Abstract

This study investigated the suitability of our oxygen pulse reserve (OPR) method for tailoring parameters of rate responsive pacemakers and planning aerobic rehabilitation programs. We selected 11 patients, NYHA Classes I-III (7 males and 4 females; mean age 60 years, range 18-83), with rate responsive pacemakers implanted for high degree AV block and chronotropic incompetence. Five pacemakers had activity sensors, 4 had temperature sensors, and 2 had dual sensors. All patients underwent a cardiopulmonary stress test (CPX). We determined anaerobic threshold time (ATT), VO2/AT, total exercise time (TET), VO2 Max, and VO2 AT/VO2 Max. OPR (mL-O2/beat) was calculated for each patient using the formula OPR = (VO2 Max - VO2 resting)/(HR Max - HR resting). During CPX, this slope was used as the rate response tailoring guideline by comparing the mL-O2/beat equation and the pacing rate. Rate response settings were modified until the optimal relationship between theoretical and paced rate was obtained. The work protocol yielded rate response settings capable of providing pacing rates within +/- 10 beats of the theoretical values. Data relating to theoretical and measured rates have been analyzed statistically. Patients underwent an aerob...Continue Reading

References

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Citations

Apr 29, 2003·Pacing and Clinical Electrophysiology : PACE·Enrico Maria GrecoSalvatore Romano
May 6, 2014·Cardiology Clinics·Daniel Sohinki, Owen A Obel
Jul 23, 2014·Circulation Journal : Official Journal of the Japanese Circulation Society·UNKNOWN JCS Joint Working Group

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