New Concept in Activity-Controlled Pacemakers: Clinical Results With an Accelerometer-Based Rate Adaptive Pacing System
| Autor: | Kurt Kochsiek, Heiner Langenfeld, Jay O Millerhagen, Eva Erdelitsch-Reiser |
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| Rok vydání: | 1992 |
| Předmět: |
Male
Pacemaker Artificial medicine.medical_specialty Supine position Acceleration Treadmill exercise Accelerometer Sick sinus syndrome Incremental exercise Heart Rate Internal medicine Activities of Daily Living medicine Humans Exercise physiology Treadmill Exercise Aged business.industry Cardiac Pacing Artificial Equipment Design General Medicine Middle Aged medicine.disease Heart Block Exercise Test Cardiology Female Cardiology and Cardiovascular Medicine business human activities Atrioventricular block |
| Zdroj: | Pacing and Clinical Electrophysiology. 15:2245-2249 |
| ISSN: | 1540-8159 0147-8389 |
| Popis: | An accelerometer-based rate adaptive generator (EXCEL VR) has been introduced. A preclinical group of 22 subjects with strap-on devices was observed and reported. A clinical protocol including observation of rate adaptive response to typical daily activities and incremental exercise on a treadmill was administered in seven implanted patients. Indications for implantation in these patients was either second- or third-degree atrioventricular block (five patients, VVIR pacing mode) and sick sinus syndrome (two patients, AAIR pacing mode). Mean pacing rates were 50 ppm (supine), 56 ppm (standing), 77 ppm (descending the stairs), 81 ppm (slow walk), 83 ppm (slow stair climb), 91 ppm (fast walk), and 92 ppm (fast stair climb). When the arm proximal to the pulse generator was exercised, the rate rose to 92 ppm. When the distal arm was strained, the rate was 63 ppm. During treadmill testing, rates between 82 ppm (2 km/hour) and 104 ppm (5 km/hour) were observed. This accelerometer-based rate adaptive pulse generator provided a proportional response to graded activities of treadmill exercise and daily living in these groups of preclinical and clinical subjects. |
| Databáze: | OpenAIRE |
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