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Vagal maneuvers
Your doctor may recommend vagal maneuvers as a first attempt to control the arrhythmia known as supraventricular tachycardia (SVT). The maneuvers are done on your own to halt a speedy heartbeat; they work by affecting the group of nerves that control your heartbeat. These nerves are called the vagal nerves. Some techniques include holding your breath and straining as if passing a bowel movement, blowing against your thumb as if blowing a trumpet, coughing, dunking your head in ice water, holding ice to your face, or doing a headstand. Your doctor may recommend other techniques.
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