Atrial Fibrillation Clinical Trial
Official title:
Effect of Renal Denervation on Atrial Fibrillation
The purpose of the ERDAF study (Effect of Renal Denervation on Atrial Fibrillation) is to
evaluate the renal sympathetic denervation in patients with resistant arterial hypertension
and symptomatic paroxysmal or persistent atrial fibrillation(AF) in order to show if there is
a reduction in the AF-related symptoms, the AF recurrence rate, and the total burden
(symptomatic and/or asymptomatic) of the arrhythmia. To the best of our knowledge, ERDAF is
the first randomized study, which is going to evaluate the effect of RDN [without pulmonary
vein isolation (PVI)] on AF recurrence profile and AF ''burden'' using continuous long-term
rhythm monitoring via ILRs for a period of 18 months.
Hypothesis
Renal sympathetic denervation in patients with resistant hypertension and symptomatic
paroxysmal or persistent atrial fibrillation reduces AF recurrences, total AF "burden"
(asymptomatic / symptomatic) and limits the AF-related symptoms.
In arterial hypertension (AH), a significant proportion of patients, despite the optimal medical therapy, do not achieve adequate blood pressure (BP) control (resistant hypertension). Renal sympathetic denervation (RDN) is a novel alternative minimally invasive therapeutic option for patients with resistant AH. Recent data has shown that RDN with or without pulmonary vein isolation (PVI) may also have a positive impact on the management of patients with paroxysmal or persistent atrial fibrillation (AF). However, there is no randomized study, to date, suggesting that RDN itself (without PVI) reduces the AF recurrences, symptoms, and the total burden of the arrhythmia. The purpose of this study [Effect of Renal Denervation on Atrial Fibrillation (ERDAF)] is to evaluate the RDN (without PVI) in patients with resistant AH and symptomatic paroxysmal or persistent AF in order to show if there is benefit in the incidence of AF recurrences, the total AF burden (symptomatic and asymptomatic) as well as the BP control. This is a single-center, randomized study in which thirty (30) patients with resistant AH and symptomatic paroxysmal or persistent AF will be randomized (1:1) after sinus rhythm restoration and implantation of an implantable loop recorder (ILR), in either RDN (n=15) or conventional treatment of resistant AH with optimal drug therapy (n=15). Patients will be followed-up every three months and for a period of 18 months after the implantation of the ILR. The first three months after RDN will be excluded from our final analysis (blanking period). The primary endpoint will be the change in the total AF burden (Total time in AF during the follow-up period). Secondary endpoints will include the change in the symptomatic and asymptomatic burden of AF, the time to detect the first AF recurrence (symptomatic and/or asymptomatic)-early recurrence of AF after RDN, and the change in BP during the follow-up period. ;
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