title: Diagnosing and reporting of central line-associated bloodstream infections.
abstract: BACKGROUND
  The diagnosis of central line-associated bloodstream infections (CLABSIs) is often controversial, and existing guidelines differ in important ways.
  
  
  OBJECTIVE
  To determine both the range of practices involved in obtaining blood culture samples and how central line-associated infections are diagnosed and to obtain members' opinions regarding the process of designating bloodstream infections as publicly reportable CLABSIs.
  
  
  METHODS
  Electronic and paper 11-question survey of infectious-diseases physician members of the Infectious Diseases Society of America Emerging Infections Network (IDSA EIN).
  
  
  METHODS
  All 1,364 IDSA EIN members were invited to participate.
  
  
  RESULTS
  692 (51%) members responded; 52% of respondents with adult practices reported that more than half of the blood culture samples for intensive care unit (ICU) patients with central lines were drawn through existing lines. A sizable majority of respondents used time to positivity, differential time to positivity when paired blood cultures are used, and quantitative culture of catheter tips when diagnosing CLABSI or determining the source of that bacteremia. When determining whether a bacteremia met the reportable CLABSI definition, a majority used a decision method that involved clinical judgment.
  
  
  CONCLUSIONS
  Our survey documents a strong preference for drawing 1 set of blood culture samples from a peripheral line and 1 from the central line when evaluating fever in an ICU patient, as recommended by IDSA guidelines and in contrast to current Centers for Disease Control and Prevention recommendations. Our data show substantial variability when infectious-diseases physicians were asked to determine whether bloodstream infections were primary bacteremias, and therefore subject to public reporting by National Healthcare Safety Network guidelines, or secondary bacteremias, which are not reportable.
authors.affiliation: Department of Internal Medicine, Carver College of Medicine, University of Iowa, Iowa City, Iowa, USA. susan-beekmann@uiowa.edu
authors.forename: Susan E
authors.initials: SE
authors.lastname: Beekmann
authors.forename: Daniel J
authors.initials: DJ
authors.lastname: Diekema
authors.forename: W Charles
authors.initials: WC
authors.lastname: Huskins
authors.forename: Loreen
authors.initials: L
authors.lastname: Herwaldt
authors.forename: John M
authors.initials: JM
authors.lastname: Boyce
authors.forename: Robert J
authors.initials: RJ
authors.lastname: Sherertz
authors.forename: Philip M
authors.initials: PM
authors.lastname: Polgreen
mesh_terms: D000328:Adult; D016470:Bacteremia / Q000097:blood / Q000175:diagnosis* / Q000517:prevention & control; D055499:Catheter-Related Infections / Q000097:blood / Q000175:diagnosis* / Q000517:prevention & control; D002405:Catheterization, Central Venous / Q000009:adverse effects*; D003428:Cross Infection / Q000097:blood / Q000175:diagnosis* / Q000517:prevention & control; D018563:Disease Notification; D019538:Health Care Surveys; D006801:Humans; D017053:Infection Control; D007362:Intensive Care Units; D010818:Practice Patterns, Physicians' / Q000706:statistics & numerical data*; D057566:Self Report; D014481:United States