Quality of Life Differences in Patients With Typical Atrial Flutter Following Cavotricuspid Isthmus Ablation

Introduction and objectives: The aim of the study was to assess and measure health-related quality of life (HRQoL) changes in patients with typical atrial flutter following catheter ablation. The outcome was standardized and normalized to the Spanish population adjusted by age and sex. Methods: Ninety-five consecutive patients who had undergone cavotricuspid isthmus ablation were included. The SF-36 questionnaire was self-administered before the procedure and at 1-year follow-up. We used the effect size and the standardized response mean as measures of responsiveness to quantify the change in HRQoL and the minimum clinically important difference to assess the smallest difference in score that patients perceived as beneficial. Results: Of the 95 patients initially included, 88 completed the 1-year follow-up. We observed a large improvement (effect size � 0.8) on the physical functioning, role-physical, general health, and vitality scales and on the physical component summary. We detected a moderate improvement (effect size � 0.5) on the role-emotional, social functioning, and mental health scales and on the mental component summary. On all scales except bodily pain and social activity, the improvement was clinically perceived by patients. Conclusions: A clinically significant improvement in HRQoL measures was found in patients with typical atrial flutter who underwent cavotricuspid isthmus catheter ablation.