title: Value of EP Study and Other Cardiac Investigations.
abstract: With the advent of implantable loop recorders capable of prolonged electrocardiographic monitoring, and following studies demonstrating the benefit of implantable cardioverter-defibrillator therapy in subgroups of patients with structural heart disease and depressed left ventricular function, the role of invasive cardiac electrophysiologic (EP) studies in patients with unexplained syncope has been substantially reduced. Nonetheless, in select high-risk patients presenting with unexplained syncope, EP studies still play an important role in identifying a diagnosis in these patients and assessing long-term risk of mortality.
authors.affiliation: Arrhythmia Institute, Valley Health System, 223 North Van Dien Avenue, Ridgewood, NJ 07450, USA.
authors.forename: Mark
authors.initials: M
authors.lastname: Preminger
authors.affiliation: Arrhythmia Institute, Valley Health System, 223 North Van Dien Avenue, Ridgewood, NJ 07450, USA; The Valley Hospital, 223 North Van Dien Avenue, Ridgewood, NJ 07450, USA. Electronic address: mittsu@valleyhealth.com.
authors.forename: Suneet
authors.initials: S
authors.lastname: Mittal
mesh_terms: D022062:Electrophysiologic Techniques, Cardiac / Q000379:methods*; D006339:Heart Rate / Q000502:physiology*; D006801:Humans; D013575:Syncope / Q000175:diagnosis* / Q000503:physiopathology; D017180:Tachycardia, Ventricular / Q000175:diagnosis* / Q000503:physiopathology
keywords: Bradyarrhythmia; Electrophysiology study; Syncope; Tachyarrhythmia