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How to maximize QRS narrowing

Olivia Braun1, Mate Vamos1, Julia W Erath1

  • 1University Hospital Frankfurt, Goethe University Frankfurt, Frankfurt, Germany.

Herzschrittmachertherapie & Elektrophysiologie
|April 10, 2019
PubMed

Insights

The SyncAV™ algorithm effectively narrows QRS duration in cardiac resynchronization therapy (CRT) recipients. This approach may lead to improved patient outcomes, as seen in a CRT super-responder.

Area of Science:

  • Cardiology
  • Medical Devices
  • Electrophysiology

Background:

  • Cardiac resynchronization therapy (CRT) aims to improve heart function by synchronizing ventricular contractions.
  • Maximal QRS narrowing during CRT is often linked to better clinical outcomes.

Observation:

  • The SyncAV™ algorithm was evaluated in an 81-year-old patient receiving CRT.
  • Various atrioventricular (AV) delay settings were tested to achieve maximal QRS narrowing.

Findings:

  • A manually programmed SyncAV™ setting of -30 ms resulted in significant QRS narrowing from 160 ms to 100 ms.
  • The patient was identified as a cardiac resynchronization therapy (CRT) super-responder at 2 months post-intervention.

Implications:

  • The SyncAV™ algorithm presents a novel method for achieving effective QRS narrowing in CRT.
  • This technique holds potential for enhancing patient outcomes in CRT recipients.
Abstract

Keywords:
AV delayCardiac resynchronization therapyMultipoint pacingQRS narrowingSyncAV™

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