P1906Modified frailty as a novel factor to predict the effectiveness of electrical cardioversion of atrial fibrillation in the elderly population

Abstract

Abstract Electrical cardioversion is one of the recognized methods of treatment of atrial fibrillation (AF)/maintenance of sinus rhythm. There are no factors that allow to predict the response to electrical cardioversion in the elderly population. Frailty is a common geriatric syndrome that embodies an elevated risk of catastrophic declines in health and function among older adults – we hypothesized that frailty can be a factor to predict the effectiveness electrical cardioversion. Methods 199 consecutive patients over 60 years (average age 71.41±6.99; 40.2% W) with AF hospitalized due to electrical cardioversion. The follow-up period for maintenance of sinus rhythm was 180±14 days. The Tilburg Frailty Indicator was used to examine the frailty before cardioversion. A global score of 5 points or more let us to respond the frailty syndrome. Results 174 patients out of 199 (87.4%) were found to have electrical cardioversion be effective. Frailty was recognized in 68 out of the 199 (34.17%). There was 66.2% (45/68) effectiveness in the frailty-affected group, whereas there was 99.2% (130/131) in the robust group; p=0.ehz748.0653. 87.9% patients have maintenance sinus rhythm after 6 months; in the frailty affected group it was 75% vs 94.6% in robust group; p=0.ehz748.0653. In the logistic regression, frailty (OR: 0.41, 95% CI: 0.2870–0.0,5851; p<0.0001) was emerged as an independent predictor of effectiveness of electrical cardioversion. The ROC curves for frailty in the effectiveness electrical cardioversion are presented in the figure below – left panel. The area under the curve is 0.856 (95% CI - 0.799–0.902). The cutoff value for a frailty recognition was 4 (p<0.0001). Similarly, in the logistic regression, frailty (OR: 0.65, 95% CI: 0.5010–0.8330; p=0.0003) was also emerged as an independent predictor of maintenance sinus rhythm. The ROC curves for frailty in the maintenance of sinus rhythm are presented in the figure – right panel. The area under the curve is 0.718 (95% CI - 0.650–0.779). The cutoff value for a frailty recognition in this case was also 4 (p<0.0001). ROC curves Conclusion Frailty is a novel, independent factor that can be used to predict the effectiveness of electrical cardioversion and maintenance of sinus rhythm in the elderly population. Modifying the level of recognition in the Tilburg Frailty Indicator to a 4, improve the prediction of effectiveness of electrical cardioversion as well as maintenance of sinus rhythm.