In hemodynamically stable patients with paroxysmal supraventricular tachycardia (PSVT), vagal maneuvers are the first-line therapy. One example is the modified Valsalva maneuver, which begins with a strain phase followed by leg elevation while in the supine position. Watch the video short to see the Valsalva maneuver in action, and read the JAMA review on PSVT: https://ja.ma/46Xvyhh | JAMA

This video shows a modified Valsalva maneuver being used in the emergency treatment of stable SVT (supraventricular tachycardia)! This awesome team at the ER was able to temporarily convert a stable paroxysmal SVT back into sinus rhythm! This is a beautiful example of how manipulating the nervous system & leveraging physiology can be used as a simple, cost-free treatment. So, let’s talk about how it works: The modified Valsalva can be divided into 3 phases: * Phase 1: Increasing intrathoracic pr