title: Comparison of the assessment of five new interventional procedures in different countries.
abstract: OBJECTIVE
  The aim of this study was to identify and compare health technology assessments of the same new interventional procedures produced in different countries.
  
  
  METHODS
  We selected five new interventional procedures and studied related assessments produced in different countries.
  
  
  RESULTS
  There were twenty assessments (range, 3-5 per procedure) from nine countries--fourteen from Australia, Canada, and United Kingdom. The number of primary RCTs cited by the assessments ranged from 0 to 13. In the assessment reports, "headline" statements about the strength of evidence for efficacy (73 percent) were made more frequently than for safety (53 percent). These statements were scored for their apparent judgment of the strength of the evidence--1 (poor) to 5 (strong)--and received scores of 3 or less in all but four cases. Recommendations about additional research were included in 55 percent of the assessments. Statements in assessments about other aspects of use of the procedures were included more infrequently--in 35 percent for patient selection, in 20 percent for consent issues, and in 15 percent for types of clinical teams. Recommendations about appropriate healthcare settings, or about operator training, were included only in assessments produced by a single organization.
  
  
  CONCLUSIONS
  There was a only small number of assessments world-wide, for a range of new procedures with potentially high impact. Where available, assessments were produced on a relatively poor evidence base. International collaboration in evidence appraisal and review, and in the gathering of new data through research or registers, could improve the advice available to healthcare systems worldwide about the adoption of new interventional procedures.
authors.affiliation: Interventional Procedures Programme, National Institute for Health and Clinical Excellence, London, UK. jonathan.plumb@mhra.gsi.gov.uk
authors.forename: Jonathan
authors.initials: J
authors.lastname: Plumb
authors.forename: Georgios
authors.initials: G
authors.lastname: Lyratzopoulos
authors.forename: Helen
authors.initials: H
authors.lastname: Gallo
authors.forename: Bruce
authors.initials: B
authors.lastname: Campbell
mesh_terms: D017115:Catheter Ablation / Q000009:adverse effects / Q000379:methods; D017679:Cryotherapy / Q000009:adverse effects / Q000379:methods; D046690:Deep Brain Stimulation / Q000009:adverse effects / Q000379:methods; D004059:Diffusion of Innovation; D019317:Evidence-Based Medicine; D006801:Humans; D054843:Negative-Pressure Wound Therapy / Q000009:adverse effects / Q000379:methods; D011013:Pneumonectomy / Q000009:adverse effects / Q000379:methods; D016032:Randomized Controlled Trials as Topic; D012107:Research Design; D013673:Technology Assessment, Biomedical / Q000458:organization & administration*