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Reversal of Atrial Substrate to Prevent Atrial Fibrillation Cohort Study

Atrial Fibrillation, Paroxysmal or Persistent

Atrial fibrillation (AF) is a major health problem, with a prevalence of 0.4-1% of the population. It results in high healthcare costs and significant morbidity, especially for patients with severe symptoms. The RASTA-AF randomized control trial (RCT) is designed to answer the following question: does vigorous treatment of AF with aggressive risk factor management plus catheter ablation reduce AF-related outcomes as compared to catheter ablation plus usual care in patients with symptomatic AF and risk factors that promote AF.

This study is a multicenter, prospective cohort study that will enrol patients who decline participation in the RASTA-AF RCT but agree to be followed in a registry. The objective of RASTA-Cohort is to determine whether patients who decline participation in the RASTA-AF RCT have different clinical characteristics and quality of life than patients who accept participation in the study, and whether they suffer from worse AF-related outcomes than patients in the RCT.

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Participation Requirements

  • Sex:

    ALL

  • Eligible Ages:

    18 and up

Participation Criteria

Inclusion Criteria:

* symptomatic AF (CCS-SAF ≥2),
* paroxysmal or persistent atrial fibrillation despite rate control, desiring catheter ablation and either: i) BMI ≥ 30 or, ii) at least two of the following: BMI\>27, BP\>140/90 mmHg or history of hypertension, Diabetes, Heart failure (prior heart failure admission or LVEF\<40%), Age ≥ 65 years, Prior stroke/TIA, Current smoker, Excessive alcohol use {For women: 10 or more drinks/week, more than 2 drinks a day (most days). For men: 15 or more drinks/week, more than 3 drinks a day (most days)}, and iii) declined participation in the RASTA AF clinical trial.

Exclusion Criteria:

* permanent AF (AF lasting \> 3 years),
* prior catheter ablation for AF
* left atrial size \> 5.5 cm,
* New York Heart Association Class IV heart failure
* participation in a cardiac rehabilitation program within the last year,
* currently performing exercise training \>150 minutes/week of moderate to vigorous physical activity,
* unable to exercise,
* unable to give informed consent,
* other noncardiovascular medical condition making 1 year survival unlikely

Study Location

QEIIHSC
QEIIHSC
Halifax, Nova Scotia
Canada

Contact Study Team

Primary Contact

Laura Hamilton

[email protected]
902-473-7226
Study Sponsored By
Nova Scotia Health Authority
Participants Required
More Information
Study ID: NCT06249269