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Meta-Analysis
. 2020 May;38(5):783-790.
doi: 10.1097/HJH.0000000000002335.

Catheter-based renal denervation as adjunct to pulmonary vein isolation for treatment of atrial fibrillation: a systematic review and meta-analysis

Christian Ukena  1 , Nicolas Becker  2 , Valerie Pavlicek  1 , Dominic Millenaar  1 , Sebastian Ewen  1 , Dominik Linz  1   3 , Jonathan S Steinberg  4 , Michael Böhm  1 , Felix Mahfoud  1
Affiliations
Meta-Analysis

Catheter-based renal denervation as adjunct to pulmonary vein isolation for treatment of atrial fibrillation: a systematic review and meta-analysis

Christian Ukena et al. J Hypertens. 2020 May.

Abstract

Objective: Renal denervation (RDN) can reduce sympathetic activity and blood pressure (BP) in hypertensive patients, which both have an impact on atrial fibrillation. We performed a systematic meta-analysis on the effects of renal denervation (RDN) in addition to pulmonary vein isolation (PVI) in patients with atrial fibrillation.

Methods: All published randomized controlled trials investigating the effects of RDN as adjunctive treatment to PVI for rhythm control of atrial fibrillation were included. Primary endpoint was recurrence of atrial fibrillation after 12 months on average.

Results: A total of six randomized controlled studies including 689 patients with hypertension and symptomatic atrial fibrillation were included. In five studies, patients had uncontrolled BP despite prescription of an average of three antihypertensive agents. PVI was performed with irrigated radio-frequency catheters in 387 patients, and in 302 with cryoballoon. Cardiac ablation catheters were used for RDN in 78% of all cases. In the remaining 22%, RDN was performed using a designated, nonirrigated radio-frequency catheter system. After 12 months, the mean odds ratio for recurrence of atrial fibrillation for PVI with RDN compared with PVI alone was 0.43 (95% confidence interval 0.32-0.59). After RDN, BP was reduced significantly whereas no changes were reported in the PVI-only groups. No relevant complications associated to RDN were documented.

Conclusion: This meta-analysis supports the concept of RDN as an adjunctive treatment for atrial fibrillation. Further studies with standardized PVI and RDN procedures are needed.

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