Boston scientific received information that this patient implanted with a right ventricular (rv) lead experienced muscle stimulation.The field representative tried all left ventricular (lv) configurations and turned lv pacing off.Additional information obtained from the field which indicated that the physician thought there was dislodgement of lead which had caused the diaphragmatic stimulation and high pacing threshold measurements.The lead was repositioned.No additional adverse patient effects were reported.
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