title: Syncope: Case Studies.
abstract: Syncope, or the sudden loss of consciousness, is a common presenting symptom for evaluation by neurologists. It is not a unique diagnosis but rather a common manifestation of disorders with diverse mechanisms. Loss of consciousness is typically preceded by a prodrome of symptoms and sometimes there is a clear trigger. This article discusses several cases that illustrate the various causes of syncope. Reflex syncope is the most common type and includes neurally mediated, vasovagal, situational, carotid sinus hypersensitivity, and atypical forms. Acute and chronic autonomic neuropathies and neurodegenerative disorders can also present with syncope.
authors.affiliation: Department of Neurology, Columbia University College of Physicians and Surgeons, Neurological Institute of New York, 710 West 168th Street, New York, NY 10032, USA.
authors.forename: Inna
authors.initials: I
authors.lastname: Kleyman
authors.affiliation: Department of Neurology, Columbia University College of Physicians and Surgeons, Neurological Institute of New York, 710 West 168th Street, New York, NY 10032, USA. Electronic address: Lhw1@cumc.columbia.edu.
authors.forename: Louis H
authors.initials: LH
authors.lastname: Weimer
mesh_terms: D000328:Adult; D000368:Aged; D005260:Female; D006801:Humans; D008297:Male; D008875:Middle Aged; D013575:Syncope / Q000209:etiology*; D055815:Young Adult
keywords: Autonomic dysfunction; Cardiogenic syncope; Dysautonomia; Orthostatic hypotension; Syncope; Vasovagal