title: Plasma thrombopoietin level after liver transplantation: relationship to cold ischemia time and coagulation parameters.
abstract: OBJECTIVE
  To determine the relation between thrombopoietin (Tpo) levels following orthotopic liver transplantation (OLT), cold ischemia time and postoperative peripheral blood platelet count and prothrombin activity.
  
  
  METHODS
  Prospective clinical study.
  
  
  METHODS
  Intensive care unit.
  
  
  METHODS
  Fourteen patients with uncomplicated postoperative course after OLT.
  
  
  RESULTS
  Plasma Tpo, as quantified by enzyme immunoassay, rose significantly from 194.9 +/- 45.7 pg/ml on day 1 after OLT to a peak value of 500.7 +/- 94.1 pg/ml on day 5 while platelet count was below normal values. Then the platelet count increased and reached normal values while Tpo decreased to normal. The rise of Tpo levels was associated with normalization of prothrombin time but peak Tpo concentrations were in inverse correlation with cold ischemia times.
  
  
  CONCLUSIONS
  The extent of production of Tpo in the liver graft following OLT is affected by cold ischemia time. This observation may be applicable in the prevention of bleeding complications associated with postoperative thrombocytopenia.
authors.affiliation: Research Unit, Reina Sofía University Hospital, Cordoba, Spain. pmdb@sofia.hrs.sas.cica.es
authors.forename: P M
authors.initials: PM
authors.lastname: Dobado-Berrios
authors.forename: C
authors.initials: C
authors.lastname: López-Pedrera
authors.forename: F
authors.initials: F
authors.lastname: Soriano
authors.forename: M
authors.initials: M
authors.lastname: de la Mata
authors.forename: R
authors.initials: R
authors.lastname: Guerrero
authors.forename: A
authors.initials: A
authors.lastname: Torres
authors.forename: F
authors.initials: F
authors.lastname: Velasco
mesh_terms: D000328:Adult; D000704:Analysis of Variance; D003080:Cold Temperature; D005260:Female; D006801:Humans; D007511:Ischemia / Q000473:pathology*; D016031:Liver Transplantation; D008297:Male; D008875:Middle Aged; D009926:Organ Preservation; D010976:Platelet Count; D011517:Prothrombin Time; D013926:Thrombopoietin / Q000097:blood*; D013997:Time Factors
chemical_list: D013926:Thrombopoietin