Background Spain has dramatically increased the number of controlled circulatory death donors (cDCD). The initial selection criteria for considering cDCD for kidney transplantation (KT) have been expanded progressively, with practically no limits in donor age during the last years. We aimed to analyze the early clinical outcomes using expanded (> 65 years) cDCD in comparison with standard ones. Methods Observational multicenter study including 19 transplant centers in Spain. We performed a systematic inclusion in a central database of every KT from expanded cDCD at each participant unit from January-2012 to January-2017. Surgical procedures and immunosuppressive protocols were based on local practices. Data was analyzed in the central office using logistic and Cox regression or competitive-risk models for multivariate analysis. Median time of follow-up was 18.1 months. Results 561 KT were performed with kidneys from cDCD, 135 from donors older than 65 years. As expected, recipients from older cDCD were also older (65.8 (SD 8.8) vs 53.7 (SD 11.4) years; p < 0.001) and with higher comorbidity. At 1 year, no differences were found amongst older and younger cDCD KT recipients in terms of serum creatinine (1.6 (SD 0.7) vs 1.5 (SD 0.8) mg/dl; p = 0.29). Non-death censored graft survival was inferior, but death-censored graft survival was not different (95.5 vs 98.2% respectively; p = 0.481). They also presented a trend towards higher delayed graft function (55.4 vs 46.7%; p = 0.09) but a similar rate of primary non-function (3.7 vs 3.1%; p = 0.71), and acute rejection (3.0 vs 6.3%; p = 0.135). In the multivariate analysis, in short follow-up, donor age was not related with worse survival or poor kidney function (eGFR < 30 ml/min). Conclusions The use of kidneys from expanded cDCD is increasing for older and comorbid patients. Short-term graft outcomes are similar for expanded and standard cDCD, so they constitute a good-enough source of kidneys to improve the options of KT wait-listed patients.

Mujer de 32 años con antecedentes de enfermedad renal crónica debido a nefritis intersticial. Después de 2 años en hemodiálisis la paciente recibió un trasplante renal y fue tratada con inmunosupresión estándar: esteroides, micofenolato mofetilo y tacrolimus. Tres años después la paciente presentó una neoplasia intraepitelial escamosa en cérvix e infección con el virus del papiloma humano (VPH), con mala respuesta al tratamiento local con crioterapia y láser. Debido a que los inhibidores de la calcineurina tienen mayor riesgo de presentar cáncer como el linfoma no Hodgkin y el de piel, y los inhibidores de la vía mammalian target of rapamycin (mTOR) a nivel intracelular pueden revertir las lesiones premalignas de tumores de piel en cabeza y cuello, el tacrolimus, fue suspendido y cambiado por everolimus, un inhibidor mTOR. Como resultado tanto la lesión en cérvix como la infección por VPH desaparecieron 6 años después, con una buena función renal y sin episodios de rechazo del injerto renal.Palabras clave: Tacrolimus. Everolimus. Neoplasia cervical intraepitelial. Virus del papiloma humano.Conversion calcineurin inhibitors to mTOR inhibitors contributes to the treatment of Cervical Intraepithelial Neoplasia in women with kidney transplant.