A multicenter randomized controlled trial of a modified Valsalva maneuver for cardioversion of supraventricular tachycardias

Abstract Clinical question Valsalva maneuver is a recognized treatment for supraventricular tachycardia, but in clinical setting it has a low chance to achieve successful cardioversion. Studies suggested that the postural modification of valsalva maneuver may improve the rate of cardioversion. We further modified the maneuver and conduct a multicenter randomized controlled trial to test its efficacy. Research in context Appelboam A, Reuben A, Mann C, et al. Postural modification of the standard Valsalva maneuver for emergency treatment for supraventricular tachycardias (REVERT): a randomized controlled trial. Lancet 2015; 386 (10005):1747–53 [ 1 ]. Allison Michaud, PhD, Eddy Lang. Leg lift Valsalva maneuver for treatment of supraventricular tachycardias. CJEM 2017; 19(3):235–237 [ 2 ]. Objective To verify the efficacy of the modified Valsalva maneuver in SVT in Chinese population and simplify the operation process further.