Use of a multi-programmable pacemaker in the dual demand mode: influence of pacing rate on termination of tachycardias
| Autor: | E. Sowton, D. B. O'keeffe, P. V. L. Curry |
|---|---|
| Rok vydání: | 1980 |
| Předmět: |
Tachycardia
Adult Male medicine.medical_specialty Pacemaker Artificial business.industry Heart Ventricles Ectopic beat Electrical termination Middle Aged medicine.disease Anesthesia Internal medicine cardiovascular system medicine Cardiology Humans Female Wolff-Parkinson-White Syndrome cardiovascular diseases medicine.symptom Cardiology and Cardiovascular Medicine business Follow-Up Studies |
| Zdroj: | European heart journal. 1(3) |
| ISSN: | 0195-668X |
| Popis: | A multi-programmable pacemaker (Siemens-Elema Model 668) has been used in the dual demand mode to treat four patients with re-entry tachycardias. In each case excellent clinical control of frequent episodes of tachycardia was obtained over the follow-up time of 12 months. The influence of different pacing rates was investigated. It was found that the time taken to terminate an episode of tachycardia was not consistently related to the pacing rate because of the variable timing of the first pacemaker impulse during the tachycardia cycle. It was concluded that pacing rates should be chosen so that they are fast enough to prevent recurrence of a tachycardia following termination of an episode, and should not be a simple fraction of the tachycardia rate. The possibility of programming hysteresis allows rapid post-tachycardia rates to be obtained temporarily. Dual demand pacing at present offers a completely automatic method of electrical termination of re-entry tachycardias, but is still restricted to patients whose episodes can be interrupted by a single ectopic beat. |
| Databáze: | OpenAIRE |
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