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Inicio Actas Urológicas Españolas (English Edition) Renal retransplantation: risk factors and results
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Vol. 35. Issue 1.
Pages 44-50 (January 2011)
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Vol. 35. Issue 1.
Pages 44-50 (January 2011)
Review Article
Renal retransplantation: risk factors and results
Retrasplante renal: factores de riesgo y resultados
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J. Arcea,
Corresponding author
jacobo1976@hotmail.com

Corresponding author.
, A. Rosalesa, J. Caffarattia, M. Montlleóa, L. Guiradob, J.M. Díazb, H. Villavicencioa
a Servicio de Urología, Fundació Puigvert, Barcelona, Spain
b Servicio de Nefrología, Fundació Puigvert, Barcelona, Spain
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Article information
Abstract
Objective

To review our experience in renal retransplants.

Materials and methods

We carried out a retrospective study on 71 patients with retransplants between 1980 and 2005. We studied: the characteristics of the recipient and graft, surgery data, reasons for graft failure, number of rejects and transplantectomies and, survival of the graft.

Results

The most frequent reason for graft failure was chronic rejection. The causes of failure of the first graft were not associated with a greater loss of the second graft (p>0.05). The percentage of anti-HLA antibodies increased in the retransplant in comparison to the first (17.23±27.91% vs. 1.21±7.43%) (p=0.001), however, it was not correlated with a significant increase in loss of the second graft (p=0.320). There were no significant differences between the complications of the first and second transplants (p>0.05) and they were not associated with a loss of the graft (p>0.05). Patients with a transplantectomy in the first transplant an 8.5 times higher risk of undergoing a second transplantectomy (p=0.0001 OR 8.54 IC 95% 0.941 – 77.501). The most frequent cause of transplantectomies in the retransplant was acute rejection. Acute rejection as a cause for transplantectomy in the first transplant proved to be an independent risk factor of transplantectomy of the retransplant (p=0.009). The mean survival of the second graft was 5.08±4.81 years, higher than the first transplant (p=0.133). The survival of the graft at 1.5 and 10 years was 83%, 75% and 52%, respectively.

Conclusions

The survival of the retransplant was not lower than the first, neither was there an increase in the number of complications.

Keywords:
Retransplant
Risk factors
Graft survival
Resumen
Objetivo

Revisar nuestra experiencia en retrasplantes renales.

Material y métodos

Se realizó un estudio retrospectivo de 71 pacientes retrasplantados entre 1980 y 2005. Se analizaron: características del receptor e injerto, datos de la intervención, causas de pérdida del injerto, número de rechazos y trasplantectomías y supervivencia del injerto.

Resultados

La causa más frecuente de pérdida del injerto fue el rechazo crónico. Las causas de pérdida del primer injerto no se asociaron con una mayor pérdida del segundo (p>0,05). El porcentaje de anticuerpos anti-HLA incrementó en el segundo trasplante respecto del primero (17,23±27,91% vs 1,21±7,43%) (p=0,001), pero no se correlacionó con un aumento significativo de pérdida del segundo injerto (p=0,320). No existieron diferencias significativas entre las complicaciones del primer y segundo trasplante (p>0,05) y no se asociaron con una pérdida del injerto (p>0,05). Los pacientes con una trasplantectomía en el primer trasplante presentaban un riesgo 8,5 veces mayor de sufrir una segunda (p=0,0001; OR: 8,54; IC 95%: 0,941-77,501). La causa más frecuente de trasplantectomía en el segundo trasplante fue el rechazo agudo. El rechazo agudo como causa de trasplantectomía en el primer trasplante se mostró como factor de riesgo independiente de trasplantectomía del segundo trasplante (p=0,009). La supervivencia media del segundo injerto fue de 5,08±4,81 años, superior al primer trasplante (p=0,133). La supervivencia del injerto a 1, 5 y 10 años fue del 83, 75 y 52%, respectivamente.

Conclusiones

La supervivencia del segundo trasplante no es inferior al primero y tampoco existe incremento en el número de complicaciones.

Palabras clave:
Retrasplante
Factores de riesgo
Supervivencia injerto

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