title: Online reporting system for transfusion-related adverse events to enhance recipient haemovigilance in Japan: a pilot study.
abstract: BACKGROUND
  A surveillance system for transfusion-related adverse reactions and infectious diseases in Japan was started at a national level in 1993, but current reporting of events in recipients is performed on a voluntary basis. A reporting system which can collect information on all transfusion-related events in recipients is required in Japan.
  
  
  METHODS
  We have developed an online reporting system for transfusion-related events and performed a pilot study in 12 hospitals from 2007 to 2010.
  
  
  RESULTS
  The overall incidence of adverse events per transfusion bag was 1.47%. Platelet concentrates gave rise to statistically more adverse events (4.16%) than red blood cells (0.66%) and fresh-frozen plasma (0.93%). In addition, we found that the incidence of adverse events varied between hospitals according to their size and patient characteristics.
  
  
  CONCLUSIONS
  This online reporting system is useful for collection and analysis of actual adverse events in recipients of blood transfusions and may contribute to enhancement of the existing surveillance system for recipients in Japan.
authors.affiliation: Department of Safety Research on Blood and Biological Products, National Institute of Infectious Diseases, Tokyo, Japan.
authors.forename: Chikako
authors.initials: C
authors.lastname: Odaka
authors.forename: Hidefumi
authors.initials: H
authors.lastname: Kato
authors.forename: Hiroko
authors.initials: H
authors.lastname: Otsubo
authors.forename: Shigeru
authors.initials: S
authors.lastname: Takamoto
authors.forename: Yoshiaki
authors.initials: Y
authors.lastname: Okada
authors.forename: Maiko
authors.initials: M
authors.lastname: Taneichi
authors.forename: Kazu
authors.initials: K
authors.lastname: Okuma
authors.forename: Kimitaka
authors.initials: K
authors.lastname: Sagawa
authors.forename: Yasutaka
authors.initials: Y
authors.lastname: Hoshi
authors.forename: Tetsunori
authors.initials: T
authors.lastname: Tasaki
authors.forename: Yasuhiko
authors.initials: Y
authors.lastname: Fujii
authors.forename: Yuji
authors.initials: Y
authors.lastname: Yonemura
authors.forename: Noriaki
authors.initials: N
authors.lastname: Iwao
authors.forename: Asashi
authors.initials: A
authors.lastname: Tanaka
authors.forename: Hitoshi
authors.initials: H
authors.lastname: Okazaki
authors.forename: Shun-Ya
authors.initials: SY
authors.lastname: Momose
authors.forename: Junichi
authors.initials: J
authors.lastname: Kitazawa
authors.forename: Hiroshi
authors.initials: H
authors.lastname: Mori
authors.forename: Akio
authors.initials: A
authors.lastname: Matsushita
authors.forename: Hisako
authors.initials: H
authors.lastname: Nomura
authors.forename: Hitoshi
authors.initials: H
authors.lastname: Yasoshima
authors.forename: Yasushi
authors.initials: Y
authors.lastname: Ohkusa
authors.forename: Kazunari
authors.initials: K
authors.lastname: Yamaguchi
authors.forename: Isao
authors.initials: I
authors.lastname: Hamaguchi
mesh_terms: D058731:Blood Safety / Q000295:instrumentation / Q000379:methods*; D003625:Data Collection; D006801:Humans; D015994:Incidence; D007564:Japan; D009862:Online Systems; D010865:Pilot Projects; D065227:Transfusion Reaction