Clinically Meaningful Results

View Dr. Christopher Ellis’ key findings on the evolution and performance of manufacturer device longevity.

Study shows that Boston Scientific CRT-Ds are lasting significantly longer than both Medtronic’s and St. Jude’s CRT-Ds

In early 2016, this study was published in Pace. This study is titled "Ampere Hour (Ah) as a Predictor of Cardiac Resynchronization Defibrillator Pulse Generator Battery Longevity; A Multi-Center Study".

The CRT-D longevity of the full cohort of patients (1302) in this multicenter study expands on the Dr. Ellis’ results first shown at Heart Failure Society of America’s 2014 Annual meeting. This study showed Boston Scientific CRT-Ds are lasting significantly longer than both Medtronic’s and St. Jude’s CRT-Ds. This study also concluded that battery capacity (aka Ampere Hours / Ah) is a predictor of longevity.

In this study, the strongest univariate predictor of a device reaching battery depletion for ERI was Ah status or battery capacity, regardless of any additional variable analyzed.

CRT-D generator ERI occurred in 13.5% of MDT 1.0 Ah systems, versus 3.8% in STJ 1.4 Ah, and 0.3% in BSC 2.0 Ah devices over mean follow-up of 3.0 years.

Life of Device Service (Device Survival Function for ERI)

  
  
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