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 ORIGINAL ARTICLE
Year : 2016  |  Volume : 53  |  Issue : 1  |  Page : 143-146

Radiation therapy outcomes in muscle invasive urinary bladder cancer: A single institution experience


1 Department of Radiation Oncology, STM Cancer Research Institute, Himalayan Institute Hospital Trust, Swami Ram Nagar, Jolly Grant, Dehradun, India
2 Department of Surgical Oncology, STM Cancer Research Institute, Himalayan Institute Hospital Trust, Swami Ram Nagar, Jolly Grant, Dehradun, India
3 Department of Medical Oncology, STM Cancer Research Institute, Himalayan Institute Hospital Trust, Swami Ram Nagar, Jolly Grant, Dehradun, India
4 Department of Urology, Himalayan Institute of Medical Sciences, Swami Ram Nagar, Jolly Grant, Dehradun, India
5 Department of Radiodiagnosis, Himalayan Institute of Medical Sciences, Swami Ram Nagar, Jolly Grant, Dehradun, India
6 Department of Pathology, Himalayan Institute of Medical Sciences, Swami Ram Nagar, Jolly Grant, Dehradun, India

Correspondence Address:
L H Ni
Department of Radiation Oncology, STM Cancer Research Institute, Himalayan Institute Hospital Trust, Swami Ram Nagar, Jolly Grant, Dehradun
India
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Source of Support: None, Conflict of Interest: None


DOI: 10.4103/0019-509X.180842

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Introduction: To audit the survival outcomes and loco-regional control in muscle invasive urinary bladder cancer patients treated with external beam radiation therapy (RT). Materials and Methods: From November 2008 through December 2011, 50 consecutively diagnosed muscle invasive urinary bladder carcinoma (T2-4a N0-2, M0) patients were included in this retrospective study. All these patients received external beam RT to a median dose of 60 Gy (range 30-66 Gy), and were not suitable for radical surgery due to patients' preference or medical comorbidities. A stepwise procedure using proportional hazard regression was used to identify prognostic factors with respect to survival. Results: Completion trans-urethral resection of bladder tumor was done in 38 (76%) patients of the cohort and 47 (94%) had transitional cell carcinoma on histopathology. Clinical stage T2 was diagnosed in 40 (80%) patients. The median follow-up for the entire cohort was 14 ± 8.9 months (range 1-36 months). In conclusion, 24 patients (48%) were free of disease, 5 patients (10%) had residual disease, and 13 patients (26%) had died of disease. Two-year and 3 year overall survival of intact bladder for the entire cohort was 58% and 43.6%, respectively. Cox regression modeling strongly suggested clinical stage (P = 0.01) and RT dose (P = 0.001) as being predictors for overall survival. Conclusion: RT shows reliable outcomes and excellent compliance in this advanced disease. Prescribing a higher RT dose could potentially correlate to better intact bladder control rates while maintaining good quality of life in selected patients.






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