| 摘要 |
A system and method are provided for compensating for the drop in blood pressure upon standing. Upon transition from prolonged sitting, lying down, or standing position, the pacemaker abruptly increasing its pacing rate upon postural transition. The pacing rate is abruptly increased to about 80-100 bpm in 20 seconds-one minute. The pacing rate then decreases slowly to another high rate in two or three minutes and then follows the metabolically indicated rate. This pacing rate is triggered whenever a patient stands after a prolonged reclined or supine/prone position as indicated by activity variance measurements.
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