Cystoscopy follow-up should be conducted for around 10–15 tumor-free years after BCG treatment, according to a new retrospective study. Based on data from 542 patients, the risk of recurrence after 10 years and 15 years was 12.5% and 20.5%, respectively. Additionally, recurrences were 8.5 times more common after a tumor-free period of 5 years for patients who had recurrent tumors before BCG treatment.
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Holmdän, S. & Ströck, V. Should follow-up cystoscopy in Bacillus Calmette-Guérin-treated patients continue after five tumour-free years? Eur. Oncol. doi:10.1016/j.eururo.2011.11.011
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Long-term screening is recommended after BCG. Nat Rev Urol 9, 5 (2012). https://doi.org/10.1038/nrurol.2011.216
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DOI: https://doi.org/10.1038/nrurol.2011.216