Heart rhythm : the official journal of the Heart Rhythm Society
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Comparative Study
Short- and long-term electrical performance of the 5086MRI pacing lead.
Owing to potential patient harm, magnetic resonance imaging (MRI) in patients with cardiac implantable electronic devices has traditionally been contraindicated. Following the EnRhythm MRI SureScan Study, an MR conditional pacemaker with modified leads was approved by the Food and Drug Administration. Electrical and handling characteristics of MR conditional pacing leads compared with those of traditional leads have not been established. ⋯ The 5086MRI lead demonstrates clinically acceptable electrical characteristics while providing safe access to MR-guided diagnostics. However, compared with the 5076 lead, the 5086MRI lead exhibits lower ventricular sensing, slightly higher ventricular capture thresholds, and higher acute lead dislodgement rate.