At PromiseCare Medical Group in Hemet, California, patients with small, localized tumors are often ideal candidates for stereotactic body radiotherapy (SBRT).
This treatment option delivers precise, non-invasive radiation therapy, utilizing advanced imaging techniques to target cancerous and benign tumors while minimizing damage to surrounding tissues.
With SBRT, you’ll find that the treatment duration is usually much shorter, needing just 1 to 5 sessions. Plus, the risk of side effects is generally lower than what you might experience with traditional radiation therapy.
By understanding how SBRT improves quality of life and provides effective tumor control, patients can better navigate the treatment experience and make informed decisions about their care.
Overview
Stereotactic body radiotherapy (SBRT) transforms tumor treatment by delivering accurate doses that precisely target tumors, effectively protecting healthy tissue from harm.
Cutting-edge imaging techniques, including 3D and 4D imaging, precisely identify tumors and deliver high doses of radiation directly to the targeted area. As a non-invasive procedure, SBRT significantly improves cancer treatment by facilitating faster patient recovery and reducing the risk of side effects.
SBRT is effective against cancerous and benign tumors in the lungs, spine, liver, and lymph nodes. Typically, only 1 to 5 treatment sessions are needed.
Types
In the field of radiation oncology, several types of Stereotactic Body Radiotherapy (SBRT) are used to treat various forms of cancer. SBRT is used mainly for treating small, localized tumors in the lungs, liver, pancreas, and spine. A customized treatment plan is created to deliver high doses of radiation in 1 to 5 sessions. This approach allows for shorter treatment durations compared to conventional radiation therapy, which often requires several weeks.
The precision of SBRT enables targeting tumors with remarkable accuracy, minimizing damage to nearby healthy tissue. This makes SBRT an effective treatment option for both cancerous and benign tumors, particularly in cases where traditional methods are unsuitable, or the tumors are difficult to reach surgically.
Advanced imaging technologies, such as CT and MRI, precisely map tumor locations and tailor treatment plans to individual needs. SBRT offers patients fewer side effects and quicker recovery times, making it an attractive alternative to external beam radiation and surgery.
Why it’s done
Stereotactic Body Radiotherapy (SBRT) is a precisely focused treatment method for small, localized tumors in various organs, including the lungs, liver, and spine.
This treatment is chosen for its precision and effectiveness. SBRT delivers a high dose of radiation in fewer treatment sessions, typically 1 to 5, minimizing overall treatment time.
It’s particularly beneficial for early-stage cancers or oligometastatic disease, offering a more efficient treatment option.
Who it’s for
Patients with small, early-stage tumors often face a difficult decision: how to effectively treat their cancer while minimizing harm to surrounding healthy tissues. Stereotactic body radiotherapy (SBRT) may be a suitable solution for these patients; this non-invasive treatment is primarily indicated for early-stage tumors, particularly in the lungs, liver, and spine.
Patients diagnosed with oligometastatic cancer—having fewer than five metastatic sites—are prime candidates for SBRT because it enables focused treatment on specific tumors. Additionally, SBRT is appropriate for those with tumors positioned near vital organs, where traditional surgical approaches carry increased risks due to their closeness to essential structures.
Patients who’ve previously undergone radiation therapy may still be candidates for SBRT, as it can effectively treat recurrent tumors. Those with inoperable tumors due to health conditions are also considered suitable candidates.
SBRT allows patients to receive targeted, high-dose radiation therapy over a few sessions, reducing harm to nearby healthy tissues. Opting for SBRT empowers patients to manage their cancer treatment and enhances their prospects for success. Those considered for SBRT undergo a comprehensive assessment to establish if this treatment suits them.
Risks
All medical treatments, including stereotactic body radiotherapy (SBRT), are uncertain. When evaluating SBRT’s benefits, it’s essential to consider the associated risks.
While SBRT is designed to minimize harm to healthy tissues, there are side effects to be aware of. Early on, patients may experience fatigue, skin irritation, nausea, and localized swelling in the treatment area. These symptoms vary depending on the tumor location, but usually subside once treatment concludes.
Late side effects can emerge months or years later, potentially leading to complications like weakened bones, organ changes, and lymphedema. If healthy tissue is exposed to radiation, there’s also a small risk of developing new cancers. However, the precision of SBRT considerably reduces this risk.
Regular follow-up exams are essential for monitoring side effects and evaluating long-term impacts. Healthcare providers will closely track progress and promptly address any complications.
How you prepare
Several steps are necessary to prepare for stereotactic body radiotherapy (SBRT) and ensure a smooth and practical treatment experience. Fasting for 2 to 3 hours before treatment is often required to provide ideal imaging and radiation delivery conditions. Comfortable, loose clothing is recommended, and jewelry and makeup should be avoided on treatment days.
Detailed imaging scans, such as CT or MRI, are used to localize tumors and create customized treatment plans accurately. These scans enable the development of a precise plan for targeting the cancer.
Custom immobilization devices, such as molds or masks, may keep the patient still during treatment, promoting accuracy.
Informing the healthcare team about any medical devices in the body is crucial for preparing safe treatments.
These steps ensure the patient is well-prepared for SBRT treatment, enabling the healthcare team to deliver the most effective radiation therapy possible. Cooperation and preparation are key to achieving the best possible outcome.
What you can expect
Once treatment preparations are complete, the stereotactic body radiotherapy (SBRT) experience can begin. The treatment consists of one to five sessions lasting approximately 30 to 60 minutes. Imaging scans, such as CT or MRI, are conducted before each session to verify the precise targeting of the tumor.
The experience during and after treatment involves:
- Painless treatment: Patients lie on a treatment table and undergo the treatment without anesthesia, enabling a rapid return to daily activities.
- Manageable side effects: Fatigue, nausea, and skin irritation may be experienced, but they vary depending on the location and type of tumor and are generally manageable.
- Quick recovery: SBRT typically allows patients to recover quickly from each session with minimal disruption to their daily lives.
- Regular follow-up exams: Patients attend follow-up exams after treatment to monitor tumor shrinkage and potential late side effects; in many cases, tumor shrinkage occurs within months.
Results
After completing stereotactic body radiotherapy (SBRT) treatment sessions and managing associated side effects, patients often see tumor shrinkage as a common outcome. Cancerous tumors may show reductions within months, while benign tumors may take 18 months to 2 years to shrink considerably.
Studies show that SBRT is as effective as surgery for early-stage lung and prostate cancers, delivering firm local disease control.
Recovery from SBRT typically involves fewer side effects and quicker recovery times compared to traditional treatments. Most patients can resume regular activities within 1-2 days post-treatment.
The precision of SBRT allows for high doses of radiation to be delivered to tumors, minimizing exposure to surrounding healthy tissue and reducing the risk of long-term complications.
Regular follow-up exams are necessary to verify the treatment’s effectiveness, monitor disease progression, and address concerns. Many patients maintain stable disease or show continued improvement with SBRT, achieving effective local control and improved quality of life.
Ongoing monitoring and follow-up care are essential to track progress and address any concerns that may arise.