title: Effect of Donor- and Recipient-Related Factors on Arterial Resistance Index After Kidney Transplant.
abstract: BACKGROUND
  The assessment of color Doppler resistance index (RI) of the intra-renal arteries has been shown to be a good predictor of short-term and long-term graft survival after kidney transplant. In this study, we investigated the influence of donor- and recipient-related factors on RI evaluated early after kidney transplant.
  
  
  METHODS
  We prospectively analyzed 90 kidney transplant patients who underwent RI assessment within the first month after the transplant, subdivided into 2 groups according their RI values lower (group A) or higher (group B) than 0.646 (median value).
  
  
  RESULTS
  Patients in group A had a lower human leukocyte antigen (HLA) mismatch number (3.3 ± 1 versus 3.9 ± 0.9, P = .007) and were significantly younger (42.8 ± 11 years versus 47.8 ± 11 years, P = .03) than patients in group B. All the others variables examined were not significantly different between the 2 groups. Multivariate logistic regression analysis confirmed that HLA mismatch number (P = .03) and recipient age (P = .03) are independent predictors of RI.
  
  
  CONCLUSIONS
  Our data suggest that HLA mismatches and donor age can influence recipient kidney vascular resistance in the early period after transplantation.
authors.affiliation: Basilicata Referral Centre for Transplantation, Hospital of Matera, Matera, Italy. Electronic address: asaracino@inwind.it.
authors.forename: A
authors.initials: A
authors.lastname: Saracino
authors.affiliation: Basilicata Referral Centre for Transplantation, Hospital of Matera, Matera, Italy.
authors.forename: G
authors.initials: G
authors.lastname: Santarsia
mesh_terms: D000328:Adult; D000367:Age Factors; D001158:Arteries / Q000276:immunology*; D005260:Female; D006085:Graft Survival / Q000276:immunology*; D006680:HLA Antigens / Q000276:immunology; D006801:Humans; D007668:Kidney / Q000098:blood supply*; D016030:Kidney Transplantation; D016015:Logistic Models; D008297:Male; D008875:Middle Aged; D015999:Multivariate Analysis; D011446:Prospective Studies; D014019:Tissue Donors; D014655:Vascular Resistance / Q000276:immunology*
chemical_list: D006680:HLA Antigens