Malfunction of the automatic slope adjustment of the QT sensor in patients with normal QT intervals
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Updated: Aug 25, 2026

11:40
Quantitative Autonomic Testing
Published on: July 19, 2011
Jacob H Ruiter1, Michael J Barrett, Loes Weteling
1Department of Cardiology, Medical Centrum Alkmaar, The Netherlands.
Pacing and Clinical Electrophysiology : PACE
|March 11, 2004
Abstract:
DDDR pacemakers with QT driven sensor algorithms may be susceptible to inappropriate pacemaker tachycardia when implanted into patients who have a relatively extended cardiac repolarization. The inability to detect and measure the QT interval at near maximum sensor rate, results in an inappropriate adjustment of the automatic QT slope. Triggering pacemaker induced tachycardia.
