title: Global emergency medicine journal club: a social media discussion about the Age-Adjusted D-Dimer Cutoff Levels To Rule Out Pulmonary Embolism trial.
abstract: OBJECTIVE
  Annals of Emergency Medicine collaborated with an educational Web site, Academic Life in Emergency Medicine (ALiEM), to host an online discussion session featuring the 2014 Journal of the American Medical Association publication on the Age-Adjusted D-Dimer Cutoff Levels to Rule Out Pulmonary Embolism (ADJUST-PE) trial by Righini et al. The objective is to describe a 14-day (August 25 to September 7, 2014) worldwide academic dialogue among clinicians in regard to 4 preselected questions about the age-adjusted D-dimer cutoff to detect pulmonary embolism.
  
  
  METHODS
  Five online facilitators hosted the multimodal discussion on the ALiEM Web site, Twitter, and Google Hangout. Comments across the social media platforms were curated for this report, as framed by the 4 preselected questions, and engagement was tracked through various Web analytic tools.
  
  
  RESULTS
  Blog and Twitter comments, as well as video expert commentary involving the ADJUST-PE trial, are summarized. The dialogue resulted in 1,169 page views from 391 cities in 52 countries on the ALiEM Web site, 502,485 Twitter impressions, and 159 views of the video interview with experts. A postdiscussion summary on the Journal Jam podcast resulted in 3,962 downloads in its first week of publication during September 16 to 23, 2014.
  
  
  CONCLUSIONS
  Common themes that arose in the multimodal discussions included the heterogeneity of practices, D-dimer assays, provider knowledge about these assays, and prevalence rates in different areas of the world. This educational approach using social media technologies demonstrates a free, asynchronous means to engage a worldwide audience in scholarly discourse.
authors.affiliation: Department of Emergency Medicine, University of Texas Health Science Center at San Antonio, San Antonio, TX. Electronic address: rezaie@uthscsa.edu.
authors.forename: Salim R
authors.initials: SR
authors.lastname: Rezaie
authors.affiliation: Department of Emergency Medicine, NYU/Bellvue, New York, NY.
authors.forename: Anand
authors.initials: A
authors.lastname: Swaminathan
authors.affiliation: Division of Emergency Medicine, Department of Medicine, McMaster University, Hamilton, ON, Canada.
authors.forename: Teresa
authors.initials: T
authors.lastname: Chan
authors.affiliation: Department of Emergency Medicine, Detroit Medical Center, Detroit, MI.
authors.forename: Sam
authors.initials: S
authors.lastname: Shaikh
authors.affiliation: Department of Emergency Medicine, University of California, San Francisco, CA.
authors.forename: Michelle
authors.initials: M
authors.lastname: Lin
mesh_terms: D001291:Attitude of Health Personnel; D015415:Biomarkers / Q000097:blood; D002170:Canada; D003661:Decision Support Techniques; D004502:Education, Medical, Continuing / Q000379:methods*; D004635:Emergency Medicine / Q000193:education*; D005338:Fibrin Fibrinogen Degradation Products / Q000378:metabolism*; D006801:Humans; D007391:International Cooperation; D007400:Interprofessional Relations; D007494:Ireland; D011655:Pulmonary Embolism / Q000097:blood / Q000175:diagnosis*; D061108:Social Media; D014481:United States
chemical_list: D015415:Biomarkers; D005338:Fibrin Fibrinogen Degradation Products; C036309:fibrin fragment D