Kazuaki Yoshikawa

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About

Kazuaki Yoshikawa is a leading researcher in geriatric oncology, with a specific focus on frailty assessment and its impact on prostate cancer treatment decisions. His work centers on integrating comprehensive geriatric screening into urological oncology to improve patient stratification and outcomes. Yoshikawa’s major contribution is the validation and application of the Geriatric 8 (G8) screening tool in prostate cancer populations. His landmark 2020 study, cited over 40 times, prospectively evaluated G8 scores in 540 prostate cancer patients, demonstrating how frailty screening can guide treatment selection across disease stages. This work has been instrumental in moving beyond age-based decision-making toward more personalized, risk-adapted care. In a related 2020 study (19 citations), he further explored how frailty and comorbidity influence surgical contraindications in localized prostate cancer, providing critical evidence for shared decision-making in older adults. Yoshikawa’s research bridges the gap between geriatric medicine and oncology, offering practical tools that help clinicians identify vulnerable patients who may benefit from modified or less aggressive treatments. His contributions are shaping clinical guidelines and improving outcomes for the growing population of older cancer patients.