title: Images in Emergency Medicine. Woman With Syncope. Twiddler's Syndrome.
authors.affiliation: University of Vermont College of Medicine, Burlington, VT.
authors.forename: Alison W
authors.initials: AW
authors.lastname: Frizell
authors.affiliation: Department of Emergency Medicine, Maine Medical Center, Portland, ME.
authors.forename: Casey Z
authors.initials: CZ
authors.lastname: MacVane
mesh_terms: D004636:Emergency Service, Hospital; D005260:Female; D006801:Humans; D008875:Middle Aged; D010138:Pacemaker, Artificial / Q000009:adverse effects*; D013902:Radiography, Thoracic; D013575:Syncope / Q000209:etiology*; D013577:Syndrome