Key result
MRI examinations in patients with MR conditional pacemakers were performed safely without fatal adverse events or changes in device settings, though 3 cases experienced pacing competition requiring careful individualized mode programming.
Why the study?
Does individualized MRI mode programming prevent pacing competition and adverse events in patients with MR conditional cardiac devices undergoing MRI?
Observational (n=29)
No
Does individualized MRI mode programming prevent pacing competition and adverse events in patients with MR conditional cardiac devices undergoing MRI?
Safe MRI in patients with MR conditional devices requires careful, individualized MRI pacing mode programming to avoid potentially risky pacing competition.
Answers are grounded in this paper and cite their sources.
Case series suggests individualized programming may mitigate pacing competition in MR conditional devices; leaves optimal protocols open for prospective validation.
Although diagnostically indispensable, magnetic resonance imaging (MRI) has been, until recently, contraindicated in patients with an implantable cardiac device. MR conditional cardiac devices are now widely used, but the mode programming needed for safe MRI has yet to be established. We reviewed the details of 41 MRI examinations of patients with a MR conditional device. There were no associated adverse events. However, in 3 cases, paced beats competed with the patient's own beats during the MRI examination. We describe 2 of the 3 specific cases because they illustrate these potentially risky situations: a case in which the intrinsic heart rate increased and another in which atrial fibrillation occurred. Safe MRI in patients with an MR conditional device necessitates detailed MRI mode programming. The MRI pacing mode should be carefully and individually selected.
No takes yet. Share an insight, caveat, or question.
Nakai et al. (2016) conducted an observational in Patients with MR conditional cardiac devices requiring MRI (n=29). MRI examination with specific mode programming was evaluated on Adverse events related to MRI examination and changes in device settings. MRI examinations in patients with MR conditional pacemakers were performed safely without fatal adverse events or changes in device settings, though 3 cases experienced pacing competition requiring careful individualized mode programming.
Synapse has enriched 10 related papers. Consider them for comparative context: