title: Pretransplantation respiratory syncytial virus infection: impact of a strategy to delay transplantation.
abstract: BACKGROUND
  Delay of hematopoietic stem cell transplantation (HSCT) has been suggested if upper respiratory tract infection (URTI) due to respiratory syncytial virus (RSV) occurs in transplantation candidates, but the efficacy of this strategy in preventing posttransplantation RSV infection is unknown.
  
  
  METHODS
  In a retrospective study, we reviewed charts of patients who underwent transplantation at Fred Hutchinson Cancer Research Center (Seattle, WA) during the period of June 1987 through December 2000 and evaluated the strategy of delaying HSCT in candidates with laboratory-confirmed RSV URTI.
  
  
  RESULTS
  Thirty-one of 37 patients had RSV URTI before conditioning, 2 (6.5%) of whom developed RSV infection after HSCT. In 6 of 37 patients, symptoms of URTI were present during the start of conditioning, but RSV virologic confirmation occurred a median of 4.5 days (range, 2-5 days) into the conditioning regimen. Conditioning was aborted for 3 of 6 patients; none had progression to RSV pneumonia. Of the 3 patients in whom HSCT proceeded as scheduled, 2 developed RSV pneumonia. Overall, RSV pneumonia occurred in 1 of 34 patients for whom HSCT was delayed, compared with 2 of 3 patients for whom there was no delay (P=.01).
  
  
  CONCLUSIONS
  In patients with pretransplantation RSV URTI, delay of HSCT was associated with a lower risk of pneumonia than was no delay. Because URTIs can progress to severe complications in patients receiving HSCTs, these results support Centers for Disease Control and Prevention/American Society of Blood and Marrow Transplantation recommendations that HSCT be delayed on the basis of symptoms of URTI rather than waiting for virologic confirmation.
authors.affiliation: Fred Hutchinson Cancer Research Center, Seattle, WA 98109, USA.
authors.forename: Angela J
authors.initials: AJ
authors.lastname: Peck
authors.forename: Lawrence
authors.initials: L
authors.lastname: Corey
authors.forename: Michael
authors.initials: M
authors.lastname: Boeckh
mesh_terms: D000293:Adolescent; D000328:Adult; D002648:Child; D002675:Child, Preschool; D005260:Female; D018380:Hematopoietic Stem Cell Transplantation / Q000379:methods* / Q000401:mortality; D006801:Humans; D007223:Infant; D008297:Male; D008875:Middle Aged; D019653:Myeloablative Agonists / Q000627:therapeutic use; D011183:Postoperative Complications / Q000821:virology*; D011300:Preoperative Care / Q000379:methods*; D018357:Respiratory Syncytial Virus Infections / Q000175:diagnosis / Q000517:prevention & control / Q000628:therapy*; D012136:Respiratory Syncytial Viruses / Q000187:drug effects / Q000302:isolation & purification*; D012189:Retrospective Studies; D012254:Ribavirin / Q000627:therapeutic use; D012307:Risk Factors; D016019:Survival Analysis; D019172:Transplantation Conditioning / Q000379:methods; D016896:Treatment Outcome
chemical_list: D019653:Myeloablative Agonists; D012254:Ribavirin