Abstract
Radiation therapy for patients with prostate cancer is preferably provided with a full urinary bladder. Full bladder can potentially move the small intestine out of the radiation treatment regions, and results in decreased small bowel radiation dose and gastrointestinal toxicity. Maintaining consistent bladder filling during computerized tomography simulation scan used for treatment planning and at daily radiation treatments is challenging. Here we present an in-development urinary catheter with a floating balloon that drains the bladder only when urine reaches to a prespecified level, and review current methods used in clinic to ensure consistent bladder filling. These includes bladder filling protocols, ultrasound scanning and biofeedback techniques.
Highlights
Prostate cancer is the most common non-cutaneous malignancy among men [1]
Chetiyawardana et al reported that empty bladder filling protocol of External beam RT (EBRT) for localized prostate cancer resulted in noninferior treatment outcomes compared to patients treated with full bladder [24]
Maintaining consistent urinary bladder filling during radiation therapy for prostate cancer is important for accurate treatment treatment table, additional urine could accumulate in the bladder, ending in having some of the patients with difficulties holding their urine
Summary
Maintaining consistent bladder filling during external beam radiotherapy for prostate cancer. We present an in-development urinary catheter with a floating balloon that drains the bladder only when urine reaches to a prespecified level, and review current methods used in clinic to ensure consistent bladder filling. These includes bladder filling protocols, ultrasound scanning and biofeedback techniques.
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