Medical device firm St. Jude Medical has presented the data of Allure Quadra cardiac resynchronization therapy pacemaker (CRT-P) system at the Heart Rhythm Society's (HRS) 36th annual scientific sessions.


According to the company, the quadripolar CRT-P system with the Quartet quadripolar LV lead is associated with a 63% reduction in the need to replace the lead or deactivate CRT following implant.

The company has presented the retrospective data analysis at the event with a title quadripolar leads are associated with fewer LV lead replacements and deactivations in CRT-P patients.

St. Jude noted that an analysis assessing around 3,000 patients implanted with a CRT-P looked at whether the known decreased need to replace or deactivate LV leads associated with SJM quadripolar CRT-Ds and the Quartet LV lead also extends to its quadripolar CRT-Ps.

Quadripolar LV pacing using SJM quadripolar CRT-Ds and an SJM quadripolar lead will offer physicians with multiple pacing options to avoid phrenic nerve stimulation (PNS) and allow for optimal treatment delivery without the need to replace or deactivate the therapy.

Stanford University assistant professor of medicine, cardiac electrophysiologist and data presenting author Dr Mintu Turakhia said: "There is a strong body of evidence indicating that quadripolar resynchronization leads are associated with fewer complications and better outcomes when used with implantable defibrillators.

"The current study showed that even in cardiac resynchronization pacemakers, the quadripolar lead was associated with fewer complications in the first three months."

Image: Allure Quadra CRT-P system with the Quartet quadripolar LV lead. Photo: courtesy of St. Jude Medical, Inc/ Business Wire.