title: Upside-down position for paroxysmal supraventricular tachycardia.
mesh_terms: D000328:Adult; D005260:Female; D006801:Humans; D011187:Posture; D013614:Tachycardia, Paroxysmal / Q000209:etiology / Q000628:therapy*; D014630:Vagus Nerve / Q000502:physiology; D014927:Wolff-Parkinson-White Syndrome / Q000150:complications