A SpaceOAR procedure involves the injection of an absorbable hydrogel to create temporary space between the prostate and the rectum, protecting the rectum from radiation exposure during prostate cancer radiation therapy.
Understanding SpaceOAR
SpaceOAR hydrogel is designed to minimize the side effects associated with radiation therapy for prostate cancer. During radiation treatment, the rectum, being located close to the prostate, can be unintentionally exposed to radiation, leading to potential complications.
- OAR stands for "Organ-At-Risk": In the context of prostate radiation therapy, the rectum is the primary organ at risk.
- Hydrogel Spacer: The SpaceOAR hydrogel acts as a spacer, physically pushing the rectum away from the prostate, thereby reducing the radiation dose it receives.
- Temporary and Absorbable: The hydrogel remains in place for approximately three months, the typical duration of radiation therapy, and is then naturally absorbed by the body.
Benefits of SpaceOAR
- Reduced Rectal Toxicity: By minimizing radiation exposure to the rectum, SpaceOAR helps to lower the risk of side effects such as rectal pain, bleeding, and diarrhea.
- Improved Quality of Life: Patients undergoing SpaceOAR often report a better quality of life during and after radiation therapy due to fewer rectal complications.
- Potential for Higher Radiation Doses: In some cases, the use of SpaceOAR allows for the delivery of higher, more effective radiation doses to the prostate, potentially improving treatment outcomes.
How the Procedure Works
- Injection: The SpaceOAR hydrogel is injected between the prostate and the rectum via a needle, typically performed as an outpatient procedure.
- Gel Placement: Once injected, the hydrogel expands to create a space of approximately 1-1.5 cm between the prostate and the rectum.
- Radiation Therapy: Radiation therapy is then administered as planned, with the rectum receiving a significantly reduced radiation dose.
- Absorption: Over several months following radiation therapy, the hydrogel is gradually absorbed by the body and naturally eliminated.
Considerations
While SpaceOAR is generally considered safe and effective, as with any medical procedure, there are potential risks and side effects. These can include pain or discomfort at the injection site, infection, and rare instances of rectal injury. It's important to discuss these potential risks with your doctor before undergoing the procedure.
