Background: Improvements in immunosuppression have resulted in long life expectancy of kidney transplants. Unfortunately, the incidence of post-transplant malignancy (PTM) is increasing. The aim of this study was to evaluate the nature and stage-specific prognosis of post-transplant breast cancer (PTBC) compared with breast cancer in the general population, and to suggest optimal treatment strategies.
Methods: A database of 2,139 consecutive kidney transplant patients was reviewed;11 of the patients developed breast cancer. These 11 PTBC cases underwent operations between 1999 and 2011. Next, 2,554 breast cancer patients treated in the same period were reviewed. Kaplan-Meier curves and the log-rank test were used to assess stage-specific survival of breast cancer in our hospital.
Results: In total, 142 cases experienced post-transplant malignancy (PTM; 6.6%) and 11 (0.5%) developed PTBC. No one required an adjusted dose of immunosuppressive agent. Two stage III patients died. For all breast cancer patients, 5-year survival by stage was 97.7% for stage I, 92.9% for stage II, 78.6% for stage III, and 49.9% for stage IV. The 5-year survival for expected stage III-specific survival was 66.7% and no significant statistical difference was seen compared to that of the total breast cancer patients (P = 0.213).
Conclusions: The prognosis of PTBC was comparable to that of the general population. These results suggest that the use of immunosuppressants per se does not adversely affect breast cancer.
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| http://dx.doi.org/10.1186/1477-7819-11-77 | DOI Listing |
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