title: The effect of detailed, video-assisted anesthesia risk education on patient anxiety and the duration of the preanesthetic interview: a randomized controlled trial.
abstract: BACKGROUND
  Video-assisted patient education during the preanesthetic clinic visit is a new intervention to increase knowledge transfer to the patient regarding anesthesia procedure and risks. However, little is known about whether video-based patient education influences patient anxiety and the duration of the preanesthetic visit.
  
  
  METHODS
  Two hundred nine consecutive patients, who visited the anesthesia clinic before major operations, were randomly assigned to one of three groups: no-video (Group 1), video-before-interview (Group 2), and video-after-interview (Group 3). Anxiety levels were measured before and after the interview using the state trait anxiety inventory and a visual analog scale (anxiety). Patient knowledge regarding anesthesia technique, anesthesia-related risks, and patient satisfaction were assessed after the interview using standardized questionnaires.
  
  
  RESULTS
  There were no significant differences in anxiety levels and patient satisfaction among the three groups. Patient knowledge was significantly higher in the video groups compared with the no-video group. The duration of the preanesthetic interview was significantly extended in Group 2 (video-before) (23.1 +/- 14.0 min), compared with Group 1 (no-video) (17.6 +/- 7.2 min), and Group 3 (video-after) (18.3 +/- 9.6 min). This difference was even more profound in subgroups of patients scheduled for anesthesia techniques with invasive monitoring.
  
  
  CONCLUSIONS
  Our study suggests that the use of a video for detailed anesthesia risk education does not change patient anxiety, but leads to a better understanding of the procedure and risks of anesthesia. When the video is shown before the preanesthetic interview, the interview is longer.
authors.affiliation: Department of Anesthesiology, University Hospital Hamburg-Eppendorf, Hamburg, Germany.
authors.forename: Cornelie
authors.initials: C
authors.lastname: Salzwedel
authors.forename: Corinna
authors.initials: C
authors.lastname: Petersen
authors.forename: Irmgard
authors.initials: I
authors.lastname: Blanc
authors.forename: Uwe
authors.initials: U
authors.lastname: Koch
authors.forename: Alwin E
authors.initials: AE
authors.lastname: Goetz
authors.forename: Martin
authors.initials: M
authors.lastname: Schuster
mesh_terms: D000328:Adult; D000368:Aged; D000758:Anesthesia / Q000009:adverse effects*; D001007:Anxiety / Q000517:prevention & control*; D005260:Female; D007722:Health Knowledge, Attitudes, Practice; D006801:Humans; D007407:Interviews as Topic; D008297:Male; D008875:Middle Aged; D010353:Patient Education as Topic; D017060:Patient Satisfaction; D010817:Physician-Patient Relations; D011446:Prospective Studies; D018570:Risk Assessment; D011795:Surveys and Questionnaires; D013997:Time Factors; D014741:Video Recording