Irvine, CA November 2, 2023 – Biosense Webster, Inc., a global leader in cardiac arrhythmia treatment and part of Johnson & Johnson MedTech, announced new findings from the Q-FFICIENCY study were published in the Journal of Cardiovascular Electrophysiology demonstrating treatment with the QDOT MICRO Catheter significantly improved control of atrial fibrillation (AFib), relief of symptoms and overall quality of life.
Q-FFICIENCY evaluated the safety and 12-month efficacy of the novel QDOT MICRO™ Catheter temperature-controlled, contact force-sensing, radiofrequency (RF) catheter in patients with paroxysmal AFib.
Based on patient-reported outcomes, the study found a 99% and 93.1% improvement in control of AFib and relief of AFib symptoms, respectively, at 12-month follow-up compared to baseline, and 87.9% of patients experienced a meaningful clinical improvement in quality of life.
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“These findings highlight the advantage of treatment with the QDOT MICRO™ Catheter in patients with paroxysmal AFib, demonstrating that patients have fewer symptoms and a significant improvement in their quality of life along with a low incidence of cardioversion and hospitalizations following temperature-controlled RF ablation treatment,” said Ayman A. Hussein, MD, Director of Cardiac Electrophysiological Outcomes Research and Director of the Center for Atrial Fibrillation, Cleveland Clinic and the publication’s corresponding author. “Paired with previously published Q-FFICIENCY study data showing that the unique design of the QDOT MICRO™ Catheter enhanced efficiency and efficacy without compromising safety, the benefit of treatment with this state-of-the art tool is clear for both patients and physicians.”
The QDOT MICRO™ Catheter is a next-generation RF ablation catheter that incorporates advanced, high-energy ablation, improved temperature monitoring, optimized irrigation, and higher signal resolution. In QMODE+™ setting, the catheter allows the delivery of very high-power, short-duration ablation – 90 watts for up to four seconds, significantly improving ablation efficiency.2 The QDOT MICRO™ Catheter is fully integrated with the CARTO 3 System, enabling efficient and consistent lesion creation with a simplified workflow and lower total procedure time.2 Earlier this year, Biosense Webster announced the publication of the Q-FFICIENCY safety and 12-month efficacy data in JACC: Clinical Electrophysiology, which showed that the QDOT MICRO™ Catheter delivered high clinical success with 86% of patients experiencing freedom from symptomatic recurrence while catheter-related primary adverse events remained low at 1.8%.
