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Skin Cancer Development in Solid Organ Transplant Recipients in Switzerland (Swiss Transplant Cohort Study)
Nadja Angela Stenz1, Susanne Stampf2, Andreas W Arnold3
1Department of Dermatology, University Hospital Zurich, Zurich, Switzerland.
Importance:
Skin cancer, in particular squamous cell carcinoma, is the most frequent malignancy among solid organ transplant recipients with a higher incidence compared to the general population.
Objective:
To determine the skin cancer incidence in organ transplant recipients in Switzerland and to assess the impact of immunosuppressants and other risk factors.
Design:
Prospective cohort study of solid organ transplant recipients in Switzerland enrolled in the Swiss Transplant Cohort Study from 2008 to 2013.
Participants:
2,192 solid organ transplant recipients.
Materials And Methods:
Occurrence of first and subsequent squamous cell carcinoma, basal cell carcinoma, melanoma and other skin cancers after transplantation extracted from the Swiss Transplant Cohort Study database and validated by medical record review. Incidence rates were calculated for skin cancer overall and subgroups. The effect of risk factors on the occurrence of first skin cancer and recurrent skin cancer was calculated by the Cox proportional hazard model.
Results:
In 2,192 organ transplant recipients, 136 (6.2%) developed 335 cases of skin cancer during a median follow-up of 32.4 months, with squamous cell carcinoma as the most frequent one. 79.4% of skin cancer patients were male. Risk factors for first and recurrent skin cancer were age at transplantation, male sex, skin cancer before transplantation and previous transplantation. For a first skin cancer, the number of immunosuppressive drugs was a risk factor as well.
Conclusions And Relevance:
Skin cancer following solid organ transplantation in Switzerland is greatly increased with risk factors: age at transplantation, male sex, skin cancer before transplantation, previous transplantation and number of immunosuppressive drugs.
