AI Article Synopsis
- Microdislocation of endocardial electrodes (EE) was found in 14.4% of 390 patients after pacemaker surgery.
- Diagnosis was based on ECG results showing no pacing response, fluctuations in pacing thresholds, and X-ray evidence of thickened EE outlines.
- Despite the microdislocation, the electrodes maintained high performance levels according to tests with a PM-20 M digital analyzer.
Article Abstract
Signs of microdislocation of an endocardial electrode (EE) were observed in 56 (14.4%) of 390 patients with an implantable pacemaker in the postoperative period. The microdislocation was diagnosed from electrocardiographic evidence for no response of a pacing pulse and from fluctuations in the pacing threshold, and from X-ray findings of the thickened and ill-defined outlines of a distal EE with preserving cardiac stimulation. The microdislocation preserves high parameters, as evidenced by a PM-20 M digital analyzer.
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