Abstract
The association between aging and cancer is well exemplified by bladder cancer: with advancing age, the risk of developing bladder cancer increases, and patients' clinical presentation and outcomes worsen. Care for elderly patients with bladder cancer requires specific knowledge of many key geriatric clinical issues in order to determine optimal treatment plans. While numerous studies have tried to address the role of urologic intervention for elderly patients with bladder cancer, many studies fail to incorporate a component of true functional assessment. Evaluation tools that incorporate comorbidities, disabilities and functional status will need to be developed, as chronological age is a poor predictor of treatment outcomes. Additionally, further research is necessary to better understand the basic mechanisms that predispose elderly patients to develop this costly and life-threatening disease. This Review examines the current literature evaluating the clinical and mechanistic interactions between aging and bladder cancer, and suggests the formulation of a research agenda to address the issues raised.
Key Points
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The annual number of bladder cancer cases in the US is increasing, with the elderly representing the largest group at risk
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While age seems to adversely affect treatment outcomes for patients with all stages of bladder cancer, the optimum management of geriatric patients remains unclear
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The majority of the data for treatment outcomes in elderly patients come from retrospective data analyses that are limited by selection biases and lack of a true assessment of physiologic reserves in the elderly
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Current research into the etiology of bladder cancer in the elderly indicates a potential role for epigenetic events that accumulate over time, as opposed to repeated genetic damage
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Future research agendas should be established to study the biology and physiology of aging as it relates to the development and progression of bladder cancer in the elderly, from the perspective of both basic mechanistic and clinical outcomes trials
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Acknowledgements
This work was supported by grants from the American Cancer Society MRSG-08-270-01-CCE (JAT), the National Institutes of Health R01-AG028657 (GAK, JAT), a Dennis W Jahnigen Career Development Award from the American Geriatrics Society (JAT) and the Travelers Chair in Geriatrics and Gerontology (GAK).Charles P Vega, University of California, Irvine, CA, is the author of and is solely responsible for the content of the learning objectives, questions and answers of the Medscape-accredited continuing medical education activity associated with this article.
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Taylor, J., Kuchel, G. Bladder cancer in the elderly: clinical outcomes, basic mechanisms, and future research direction. Nat Rev Urol 6, 135–144 (2009). https://doi.org/10.1038/ncpuro1315
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DOI: https://doi.org/10.1038/ncpuro1315
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