title: A quality assessment of cardiac auscultation material on YouTube.
abstract: BACKGROUND
  YouTube is a highly utilized Web site that contains a large amount of medical educational material. Although some studies have assessed the education material contained on the Web site, little analysis of cardiology content has been made. This study aimed to assess the quality of videos relating to heart sounds and murmurs contained on YouTube.
  
  
  OBJECTIVE
  We hypothesized that the quality of video files purporting to provide education on heart auscultation would be highly variable.
  
  
  METHODS
  Videos were searched for using the terms "heart sounds," "heart murmur," and "heart auscultation." A built-in educational filter was employed, and manual rejection of non-English language and nonrelated videos was undertaken. Remaining videos were analyzed for content, and suitable videos were scored using a purpose-built tool.
  
  
  RESULTS
  YouTube search located 3350 videos in total, and of these, 22 were considered suitable for scoring. The average score was 4.07 out of 7 (standard deviation, 1.35). Six videos scored 5.5 or greater and 5 videos scoring 2.5 or less. There was no correlation between video score and YouTube indices of preference (hits, likes, dislikes, or search page). The quality of videos found in this study was highly variable. YouTube indications of preference were of no value in determining the value of video content. Therefore, teaching institutions or professional societies should endeavor to identify and highlight good online teaching resources.
  
  
  CONCLUSIONS
  YouTube contains many videos relating to cardiac auscultation, but very few are valuable education resources.
authors.affiliation: New College, St. Hugh's College, Oxford University, Oxford, United Kingdom. christian.camm@new.ox.ac.uk
authors.forename: Christian F
authors.initials: CF
authors.lastname: Camm
authors.forename: Nicholas
authors.initials: N
authors.lastname: Sunderland
authors.forename: A John
authors.initials: AJ
authors.lastname: Camm
mesh_terms: D022126:Access to Information; D002309:Cardiology / Q000193:education*; D003194:Computer-Assisted Instruction / Q000592:standards; D004501:Education, Medical / Q000379:methods* / Q000592:standards; D006326:Heart Auscultation / Q000592:standards; D006801:Humans; D033181:Information Dissemination; D017410:Practice Guidelines as Topic; D011786:Quality Control; D061108:Social Media / Q000592:standards; D014741:Video Recording / Q000592:standards