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Nefrologia. 2016 Nov - Dec;36(6):660-666. doi: 10.1016/j.nefro.2016.05.018. Epub 2016 Aug 30.

Renal graft survival according to Banff 2013 classification in indication biopsies.

[Article in English, Spanish]

Author information

  • 1Servicio de Nefrología, Hospital del Mar, Barcelona, España.
  • 2Anatomía Patológica, Hospital del Mar, Barcelona, España.
  • 3Servicio de Nefrología, Hospital del Mar, Barcelona, España. Electronic address:



The impact of acute rejection in kidney graft survival is well known, but the prognosis of other diagnoses is uncertain. We evaluated the frequency and impact on graft survival of different diagnostic categories according to the Banff 2013 classification in a cohort of renal transplant recipients.


Retrospective study of 495 renal biopsies by indication in 322 patients from 1990-2014. Two independent observers reviewed the histological reports, reclassifying according to the Banff 2013 classification.


Of 495 biopsies, 28 (5.7%) were not diagnostic. Of the remaining 467, 10.3% were «normal» (category 1), 19.6% antibody-mediated changes (category 2), 5.9% «borderline» changes (category 3), 8.7% T-cell-mediated rejection (category 4), 23.4% interstitial fibrosis/tubular atrophy (IFTA) (category 5) and 26.5% with other diagnoses (category 6). As time after transplantation increases, diagnoses of categories 1, 3 and 4 decrease, while categories 5 and 2 increase. Worse graft survival with category 2 diagnosis was observed (45% at 7.5 years, HR 4.29 graft loss [95% CI, 2.39-7.73]; P≤.001, compared to category 1). Grafts with «unfavourable histology» (chronic antibody-mediated rejection, moderate-severe IFTA) presented worse survival that grafts with «favourable histology» (normal, acute tubular necrosis, mild IFTA).


The Banff 2013 classification facilitates a histological diagnosis in 95% of indication biopsies. While diagnostic category 6 is the most common, a change in the predominant histopathology was observed according to time elapsed since transplantation. Antibody-mediated changes are associated with worse graft survival.


Banff 2013 classification; Biopsia renal; Clasificación de Banff 2013; Graft survival; Renal biopsy; Renal transplant; Supervivencia del injerto; Trasplante renal

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