2011;42(6):1768-1770. 390. Lopes RD, Alings M, Connolly SJ, et al. Rationale and design of the Apixaban for the Reduction of Thrombo-Embolism in Patients With Device-Detected Sub-Clinical Atrial Fibrillation (ARTESiA) trial. Am Heart J. 2017;189:137-145. 391. Kirchhof P, Blank BF, Calvert M, et al. Probing oral anticoagulation in patients with atrial high rate episodes: rationale and design of the Non-vitamin K antagonist Oral anticoagulants in patients with Atrial High rate episodes (NOAH-AFNET 6) trial. Am Heart J. 2017;190:12-18. 392. Seidl K, Hauer B, Schwick NG, Zellner D, Zahn R, Senges J. Risk of thromboembolic events in patients with atrial utter. Am J Cardiol. 1998;82(5):580-583. 393. Corrado G, Sgalambro A, Mantero A, et al. Thromboembolic risk in atrial utter. The FLASIEC (FLutter Atriale Societa Italiana di Ecogra a Cardiovascolare) multicentre study. Eur Heart J. 2001;22(12):1042-1051. 394. Padeletti L, P rerfellner H, Mont L, et al. New-generation atrial antitachycardia pacing (Reactive ATP) is associated with reduced risk of persistent or permanent atrial brillation in patients with bradycardia: results from the MINERVA randomized multicenter international trial. Heart Rhythm. 2015;12(8):1717-1725. 395. Vadmann H, Nielsen PB, Hjortsh j SP, et al. Atrial utter and thromboembolic risk: a systematic review. Heart. 2015;101(18): 1446-1455. 396. Morris JJ, Kong Y, North WC, Mcintosh HD. Experience with "cardioversion" of atrial brillation and utter. Am J Cardiol. 1964;14:94-100. 397. Jensen JB, Humphries JO, Kouwenhoven WB, Jude JR. Electroshock for atrial utter and atrial brillation. Follow-up studies on 50 patients. JAMA. 1965;194(11):1181-1184. 398. Wikland B, Edhag O, Eliasch H. Atrial brillation and utter treated with synchronized DC shock. A study on immediate and long-term results. Acta medica Scandinavica. 1967;182(5):665-671. 399. Bjerkelund C, Orning OM. An evaluation of DC shock treatment of atrial arrhythmias. Acta Med Scand. 1968;184(6):481-491. 400. Lanzarotti CJ, Olshansky B. Thromboembolism in chronic atrial utter: is the risk underestimated? 