Acute evaluation of a preformed single-pass VDD/DDD pacing lead
The clinical utility of single lead, atrial synchronous, ventricular pacing (VDD), for patients with normal sinus function and heart block is well established. Atrial stimulation, unavailable in VDD systems presents a significant disadvantage. DDD pacing systems however, require the introduction and...
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| Veröffentlicht in: | Journal of interventional cardiac electrophysiology 1998-06, Vol.2 (2), p.171-173 |
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| container_title | Journal of interventional cardiac electrophysiology |
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| creator | HAZDAY, M. S MENDELSON, D BROWNLEE, R. R |
| description | The clinical utility of single lead, atrial synchronous, ventricular pacing (VDD), for patients with normal sinus function and heart block is well established. Atrial stimulation, unavailable in VDD systems presents a significant disadvantage. DDD pacing systems however, require the introduction and positioning of two separate leads. The acute human study discussed evaluated a modified version of a commercially available VDD lead with a preshaped lobe, capable of both sensing and pacing the right atrium. "P" waves and atrial stimulation thresholds were determined in five patients. The mean P-wave was 2.5 +/- 1 millivolts. Atrial stimulation in the unipolar configuration was 1.6 +/- 0.5 volts and 1.7 +/- 0.9 volts in the bipolar configuration. These acute stimulation thresholds and sensing amplitudes were comparable to conventional DDD pacing systems. Therefore, single-lead DDD pacing may be feasible and warrants further study. |
| doi_str_mv | 10.1023/A:1009755616342 |
| format | Article |
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| subjects | Biological and medical sciences Cardiac Pacing, Artificial - methods Diseases of the cardiovascular system Electrocardiography Electrodes, Implanted Equipment Design Evaluation Studies as Topic Heart Atria Heart Block - therapy Heart Ventricles Humans Iridium Medical sciences Pacemaker, Artificial Platinum Radiotherapy. Instrumental treatment. Physiotherapy. Reeducation. Rehabilitation, orthophony, crenotherapy. Diet therapy and various other treatments (general aspects) Surface Properties |
| title | Acute evaluation of a preformed single-pass VDD/DDD pacing lead |
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