# High Radiofrequency Power for Faster and Safer Pulmonary Vein Ablation Trial (POWER FAST III)

> **NCT04153747** · NA · COMPLETED · sponsor: **Hospital Universitario La Paz** · enrollment: 304 (actual)

## Conditions studied

- Atrial Fibrillation
- Catheter Ablation

## Interventions

- **OTHER:** High-power and short-duration radiofrequency ablatio (70 W / 9-10 s)
- **OTHER:** Low-power (25-40 W) radiofrequency ablation guided by lesion size index (LSI) and ablation index (AI) values
- **OTHER:** Esophageal endoscopy
- **DIAGNOSTIC_TEST:** Daily 30-seconds ECG

## Key facts

- **NCT ID:** NCT04153747
- **Lead sponsor:** Hospital Universitario La Paz
- **Sponsor class:** OTHER
- **Phase:** NA
- **Study type:** INTERVENTIONAL
- **Status:** COMPLETED
- **Start date:** 2019-04-25
- **Primary completion:** 2023-04-30
- **Final completion:** 2023-12-30
- **Target enrollment:** 304 (ACTUAL)
- **Last updated:** 2024-01-10


## Primary source

ClinicalTrials.gov registry: https://clinicaltrials.gov/study/NCT04153747

## Citation

> US National Library of Medicine, ClinicalTrials.gov registration NCT04153747, "High Radiofrequency Power for Faster and Safer Pulmonary Vein Ablation Trial (POWER FAST III)". Retrieved via AI Analytics 2026-06-25 from https://api.ai-analytics.org/clinical/NCT04153747. Licensed CC0.

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