title: Assessment and improvement of figures to visually convey benefit and risk of stroke thrombolysis.
abstract: OBJECTIVE
  Deciding whether to use intravenous fibrinolytic therapy for acute cerebral ischemia within 3 hours of onset is challenging for patients, family members, and health care providers. Visual displays can permit individuals to rapidly understand response patterns to therapy. This study sought to evaluate, refine, and improve existing visual aids for stroke fibrinolytic decision-making.
  
  
  METHODS
  Existing visual aids were identified by Medline search and querying of national guideline organizations, pharmaceutical manufacturers, and stroke specialists, and were rated on a formal 8-point quality rating scale (0, lowest; 8, highest). Based on available instruments, new visual displays were developed to improve informed decision-making in routine practice.
  
  
  RESULTS
  Two existing visual aids were identified, one from an emergency medicine society and one from a pharmaceutical company. Both were comparison visual displays of outcomes with and without treatment; no decision matrix visual aid was found. Both scored 4.0 on the quality scale, showing defects of effect size distortion, privileging less salient outcomes, dissimilar representation by treatment group, and limited stakeholder participation in generation. Revised versions of these graphics were developed with higher quality scores (6.75 and 7.75). In addition, a new decision matrix display with quality score 8.0 was developed that complements the numeric text of a national patient education tool developed jointly by US neurology, emergency medicine, and stroke patient organizations.
  
  
  CONCLUSIONS
  Existing visual aids for stroke fibrinolysis decision-making have deficiencies. New visual displays are now available to convey the health benefits and risks of fibrinolytic stroke therapy efficiently and informatively to patients and family members.
authors.affiliation: Stroke Center and Department of Neurology, David Geffen School of Medicine, University of California Los Angeles, Los Angeles, Calif 90095, USA.
authors.forename: Jigneshkumar
authors.initials: J
authors.lastname: Gadhia
authors.forename: Sidney
authors.initials: S
authors.lastname: Starkman
authors.forename: Bruce
authors.initials: B
authors.lastname: Ovbiagele
authors.forename: Latisha
authors.initials: L
authors.lastname: Ali
authors.forename: David
authors.initials: D
authors.lastname: Liebeskind
authors.forename: Jeffrey L
authors.initials: JL
authors.lastname: Saver
mesh_terms: D001296:Audiovisual Aids / Q000592:standards*; D017028:Caregivers / Q000193:education; D003196:Computer Graphics / Q000592:standards; D003627:Data Interpretation, Statistical; D003661:Decision Support Techniques; D004502:Education, Medical, Continuing / Q000379:methods; D006801:Humans; D020767:Intracranial Thrombosis / Q000188:drug therapy* / Q000453:epidemiology / Q000503:physiopathology; D017063:Outcome Assessment, Health Care / Q000379:methods*; D010353:Patient Education as Topic / Q000379:methods; D018570:Risk Assessment / Q000379:methods; D012985:Software Design; D020521:Stroke / Q000188:drug therapy* / Q000453:epidemiology / Q000503:physiopathology; D015912:Thrombolytic Therapy / Q000379:methods*