title: [The blood sample as viral marker of cytomegalovirus infection in patients with liver and heart transplantation].
abstract: BACKGROUND
  To evaluate the utility of blood, saliva and urine samples as virological markers of cytomegalovirus infection in liver and heart transplant recipients.
  
  
  METHODS
  Patients (68 liver, 21 heart) with a minimum follow up of two months after the transplant date, were included. We performed tube and shell vial cultures in all types of samples. In addition, cytomegalovirus antigenemia assay was carried out on blood specimens.
  
  
  RESULTS
  A 97.2% of 36 patients with cytomegalovirus active infection were detected by using blood samples, in comparison with the 86.1% by saliva and 63.9% by urine, but differences were only statistically significant when considering the liver transplant patients subgroup. Moreover, blood samples allowed to detect the infection a mean of 19 days earlier than detection in saliva and/or urine. The most sensitive technique in blood was the antigenemia assay (94.7% of infected patients), followed by the shell vial method (85.3%) and conventional culture (73.3%). The former yields earlier results than culture methods, with a mean of 5 days.
  
  
  CONCLUSIONS
  Cytomegalovirus detection in blood samples showed a higher sensitivity in comparison with detection in urine and/or saliva, and was an earlier marker of infection in these patients. We recommended the antigenemia assay and the shell vial culture in blood samples because of their sensitivity, rapidity, and simplicity.
authors.affiliation: Servicio de Microbiología, Hospital Prínceps d'Espanya, Barcelona.
authors.forename: J
authors.initials: J
authors.lastname: Niubó
authors.forename: M
authors.initials: M
authors.lastname: Viqueira
authors.forename: A
authors.initials: A
authors.lastname: García
authors.forename: N
authors.initials: N
authors.lastname: Manito
authors.forename: J L
authors.initials: JL
authors.lastname: Pérez
authors.forename: R
authors.initials: R
authors.lastname: Martín
mesh_terms: D001769:Blood / Q000821:virology; D003586:Cytomegalovirus Infections / Q000097:blood* / Q000175:diagnosis* / Q000821:virology; D016027:Heart Transplantation / Q000009:adverse effects*; D006801:Humans; D016031:Liver Transplantation / Q000009:adverse effects*; D012463:Saliva / Q000821:virology; D012680:Sensitivity and Specificity; D013997:Time Factors; D014556:Urine / Q000821:virology; D014773:Virology / Q000379:methods
vernacular_title: La muestra de sangre como marcador virológico de infección por citomegalovirus en pacientes con trasplantes hepático y cardíaco.