Conditions in which vagal maneuvers may be useful diagnostically or therapeutically

Tachyarrhythmias

Narrow, regular supraventricular tachycardias

Sinus tachycardia

Conduction abnormalities

2:1 atrioventricular block

Bundle branch blocks

Preexcitation

Other cardiovascular uses

Carotid sinus hypersensitivity

Pulmonary edema

Courtesy of Peter J Zimetbaum, MD and Daniel Frisch, MD.

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