September 14, 2015

Background: In patients with cardiovascularly stable supraventricular tachycardia (SVT), the valsalva maneuver is recommended as an initial maneuver to help with cardioversion. The success rate of the valsalva maneuver alone is documented at 5 – 20%. The next option for patients who still remain in SVT is intravenous adenosine. Adenosine briefly stops all conduction through the AV node, which causes patients to feel a sense of doom or like they are about to die. Increasing venous return and vagal stimulation by laying patients supine and elevating their legs may increase the rate of conversion and is simple, safe, and cost effective.