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Comparison · NCT00911508-sae

Left Atrial Ablation vs Rate or Rhythm Control Therapy: serious adverse events

Calculated by ConductScience from the counts the trial posted to ClinicalTrials.gov.

2 sourcestrial-comparisons-2026-03-23-0.1.0

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ConductScience Library. Left Atrial Ablation vs Rate or Rhythm Control Therapy: serious adverse events. Trial comparisons, record NCT00911508-sae. Release trial-comparisons-2026-03-23-0.1.0, 23 Mar 2026. https://conductscience.org/library/comparisons/NCT00911508-sae

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Measures6

Calculated by ConductScience from the counts the trial posted to ClinicalTrials.gov.

MeasureValue95% interval, lower95% interval, upperMethodNote
Risk in group 10.410.3810.439wilson
Risk in group 20.3920.3640.422wilson
Risk difference, group 1 minus group 20.0174-0.02350.0582newcombe hybrid score
Risk ratio, group 1 over group 21.040.9431.16log
Odds ratio, group 1 over group 21.080.9071.27log
Number needed to harm, for one more participant with a serious adverse event on Left Atrial Ablation than on Rate or Rhythm Control Therapy57.4from the risk difference intervalthe interval includes no difference

Groups2

Neither group, or both, names a comparator, so the groups keep ClinicalTrials.gov's order.

GroupTitleDescriptionWith the outcomeAnalysedClinicalTrials.gov code
Group 1Left Atrial Ablation
All patients randomized to the ablation group were required to undergo left atrial pulmonary vein isolation. The addition of ancillary ablation techniques including linear, ganglion plexus, and electrogram-based approaches were left to the discretion of the investigators.
4541,108EG000
Group 2Rate or Rhythm Control TherapyAll patients randomized to drug therapy, were treated with standard rhythm and/or rate control drugs selected in accordance with contemporary guidelines, according to investigator discretion.4301,096EG001

Harm

What it counts
Total, serious adverse events
Time frame
Adverse events were collected from time of enrollment through study completion over a median follow-up duration of 48.5 months.

Source ClinicalTrials.gov

Trial

Title
Catheter Ablation vs Anti-arrhythmic Drug Therapy for Atrial Fibrillation Trial
NCT number
NCT00911508
Phases
NA
Conditions
Atrial Fibrillation, Arrhythmia
Interventions
Left atrial ablation, Rate or Rhythm Control Therapy
Lead sponsor
Mayo Clinic
Results first posted
2019-08-26

Source ClinicalTrials.gov

Source

Release
trial-comparisons-2026-03-23-0.1.0
Release manifest SHA-256
f66225897fbf258b57ea10bdacfd0347d3cdfda93f7f5685234b7e06ea36fa57
AACT copy
2026-03-23
Tables read
outcome_counts.parquet, outcome_measurements.parquet, outcomes.parquet, reported_event_totals.parquet, reported_events.parquet, result_groups.parquet, studies.parquet, ctgov_trial.parquet

Source ClinicalTrials.gov

Sources 2

  • ClinicalTrials.gov's posted results, through CTTI's AACTFreely available. Acknowledgement requested
  • ClinicalTrials.govNo license stated
Each source's terms
  • ClinicalTrials.gov's posted results, through CTTI's AACTClinicalTrials.gov data via Aggregate Analysis of ClinicalTrials.gov (AACT), CTTI. CTTI makes its materials freely available and requests acknowledgement. https://aact.ctti-clinicaltrials.org/documentation/299
  • ClinicalTrials.govnone stated

ClinicalTrials.gov's data carry an international copyright outside the United States: https://clinicaltrials.gov/about-site/terms-conditions. The measures are ConductScience's calculation from them.

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