Maintaining consistent bladder filling during external beam radiotherapy for prostate cancer

Area of Science:

• Oncology
• Medical Devices
• Radiation Oncology

Background:

• Prostate cancer radiation therapy benefits from a full urinary bladder.
• A full bladder displaces the small intestine, reducing radiation dose and gastrointestinal toxicity.
• Consistent bladder filling during planning and treatment is a clinical challenge.

Purpose of the Study:

• To present an innovative urinary catheter designed for controlled bladder drainage.
• To review existing clinical methods for maintaining consistent bladder filling during radiation therapy.

Main Methods:

• Development of a urinary catheter with a floating balloon mechanism for automatic drainage at a set urine level.
• Review of current clinical practices including bladder filling protocols, ultrasound scanning, and biofeedback techniques.

Main Results:

• The in-development catheter aims to automate and standardize bladder volume control.
• Current methods like protocols, ultrasound, and biofeedback are employed to manage bladder filling.
• These approaches collectively aim to improve the precision of radiation delivery.

Conclusions:

• Consistent bladder filling is essential for optimizing radiation therapy for prostate cancer.
• The novel catheter offers a potential solution for improved bladder volume management.
• Further research and clinical validation are needed for the new device and existing techniques.