title: Preliminary observations on the effect of amitriptyline treatment in preventing syncope recurrence in patients with vasovagel syncope.
abstract: OBJECTIVE
  Vasovagal syncope is a common and challenging problem that may result in injury and causes substantial anxiety among patients and their relatives. However, treatment of vasovagal syncope with standard pharmacologic approaches is not satisfactory. The aim of this study is to investigate the effect of amitriptyline, a tricyclic antidepressant drug, by using its anticholinergic effects in preventing syncopal episodes in patients with vasovagal syncope.
  
  
  METHODS
  In this study, 74 patients (mean age 24 +/- 1.9 years, 26 male) with a history of recurrent syncope and baseline positive head-up tilt table test (syncope or presyncope) were included. Oral amitriptyline treatment was given to all patients, with a starting dose of 10 mg once a day. Head-up tilt table test was performed in all patients 4 weeks after the treatment started. Patients were followed up clinically for 6 months.
  
  
  RESULTS
  After 4 weeks, during head-up tilt table test in 69 patients (93%), syncope or presyncope was not seen and test was assumed as negative. At the end of the 6th month, 67 patients (91%) were free of symptoms. Only two patients (0.3%) did not tolerate amitriptyline due to side effects.
  
  
  CONCLUSIONS
  Oral amitriptyline can be used in the prevention of recurrent episodes of vasovagal syncope safely. However, randomized controlled studies are essential to assess the real effectiveness of this therapy.
authors.affiliation: Department of Cardiology, Hacettepe University Faculty of Medicine, Ankara, Turkey. doctorkaya@yahoo.com
authors.forename: Ergün
authors.initials: E
authors.lastname: Bariş Kaya
authors.forename: Gülcan
authors.initials: G
authors.lastname: Abali
authors.forename: Kudret
authors.initials: K
authors.lastname: Aytemir
authors.forename: Sedat
authors.initials: S
authors.lastname: Köse
authors.forename: Uğur
authors.initials: U
authors.lastname: Kocabaş
authors.forename: Lale
authors.initials: L
authors.lastname: Tokgözoğlu
authors.forename: Giray
authors.initials: G
authors.lastname: Kabakçi
authors.forename: Basri
authors.initials: B
authors.lastname: Amasyali
authors.forename: Hilmi
authors.initials: H
authors.lastname: Ozkutlu
authors.forename: Nasih
authors.initials: N
authors.lastname: Nazli
authors.forename: Ali
authors.initials: A
authors.lastname: Oto
mesh_terms: D000284:Administration, Oral; D018759:Adrenergic Uptake Inhibitors / Q000008:administration & dosage / Q000627:therapeutic use*; D000328:Adult; D000639:Amitriptyline / Q000008:administration & dosage / Q000627:therapeutic use*; D005260:Female; D006801:Humans; D008297:Male; D055502:Secondary Prevention; D019462:Syncope, Vasovagal / Q000517:prevention & control*; D018667:Tilt-Table Test; D016896:Treatment Outcome
chemical_list: D018759:Adrenergic Uptake Inhibitors; D000639:Amitriptyline