Current Treatment Specific to Persistent AF

It is likely that more ablation will be needed and to date, this has resulted in extensive ablation throughout the LA.

Lesion sets proposed:

  • Lines

  • Complex electrograms

  • Rotas

  • Scar

  • Low voltage

  • Areas of ganglionic plexi

Persistent AF

The image to the right shows extensive lesions dotted throughout the LA and is determined as persistent AF.

The problem with this approach is that at present, clinicians are not always able to identify the sources of persistent AF.  This means that any ablation that is performed in the atrium, after PV isolation, actually makes the results worse rather than better.

Graph Verma NEJM
ref= Verma A et al. 2015 NEJM

Outcome after first ablation with PV isolation:

  • With and without anti-arrhythmic (AA) drugs – 59%
  • Without AA drugs – 48%”

No system has been able to successfully guide the physician to the areas driving persistent AF. This explains why the success rates for AF ablation, in reputable randomised trials have remained at around 50% for the last 15 years.  STAR Mapping™ has been designed to address this clinical need.

STAR Mapping™ has managed to solve this problem.


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