Medtronic gets CE Mark for MRI-safe defibrillators

Interventional device developer Medtronic has received the CE Mark for its cardiac resynchronization therapy defibrillators for 3-tesla MRI scans.

The full line of defibrillators -- also labeled for 1.5-tesla scanners -- is now available in Europe to help treat heart failure and reduce the risk of sudden cardiac arrest in patients with Claria MRI Quad CRT-D SureScan, Amplia MRI Quad CRT-D SureScan, and Compia MRI Quad CRT-D SureScan systems. All three defibrillators are approved for MRI scans without positioning restrictions. The Claria defibrillator is not approved for sale in the U.S.

The Claria MRI CRT-D features the EffectivCRT Diagnostic and the EffectivCRT during atrial fibrillation (AF) algorithm, which automatically adjusts pacing rates -- without adversely affecting the average heart rate -- to tailor the therapy to individual patients.

The Claria MRI and Amplia MRI CRT-Ds also feature the Medtronic-exclusive AdaptivCRT algorithm, which improves cardiac resynchronization therapy response rate and reduces risk of atrial fibrillation. They also enable multiple point pacing, which can stimulate two sites on the left ventricle (lower chamber) simultaneously.

Additional features available in all three devices include the following:

  • Attain Perfoma MRI SureScan quadripolar leads: Attain Perfoma left ventricular leads include short bipolar spacing to reduce phrenic nerve stimulation occurrence; steroid on all electrodes; and three shapes for varying patient anatomies.
  • VectorExpress technology: An automated in-office test that reduces lead programing to two minutes and reveals clinically actionable information to help physicians select optimal pacing configurations for each patient.

In addition to the full line of cardiac resynchronization therapy defibrillators, Medtronic MR-conditional cardiac rhythm and heart failure devices and leads previously approved for 1.5 tesla are now approved for full-body scans in both 1.5- and 3-tesla MRI systems in Europe. These include Advisa MRI and Ensura MRI pacemakers, Micra transcatheter pacing system, Reveal XT and Reveal LINQ insertable cardiac monitors, and Evera MRI and Visia AF MRI implantable cardioverter defibrillators.

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