Proton Therapy For Esophageal Cancer
Today, treating esophageal cancer with an adequate dose of radiation is challenging due to the close proximity of the esophagus to critical structures including the heart, lungs, liver, and spinal cord. Delivering a full therapeutic dose using conventional X-ray radiation means these vital organs inevitably absorb stray radiation. Due to this occurrence, proton therapy is an excellent choice for patients with esophageal cancer who require high-dose radiation in this sensitive and demanding area of the body.
Proton therapy for esophageal cancer offers patients and their doctors a uniquely precise option for effectively targeting esophageal tumors while reducing radiation exposure to the surrounding healthy organs. California Protons Cancer Therapy Center is one of the leading proton therapy centers in the country treating esophageal cancer with the most advanced proton technology available. Our facilities give patients access to a level of precision and care that radiation simply cannot match.
How Does Esophageal Cancer Develop?
Understanding what causes esophageal cancer can help patients and families make sense of a diagnosis and the treatment path ahead. There are several underlying causes, but the most common driver is chronic acid reflux disease (GERD), which over time damages the lining of the lower esophagus and can lead to a type of cancer called adenocarcinoma.
Other common causes include long-term tobacco use, heavy alcohol consumption, and regular ingestion of very hot liquids. Repeated injury to the esophageal lining from these sources can give rise to squamous cell carcinoma, which most often develops in the upper and middle portions of the esophagus where flat, thin cells line the surface.
Esophageal Cancer
Treatment Details
What We Treat
- Squamous cell carcinoma, which begins in flat, thin cells found in the surface lining of the esophagus, most often in the upper and middle portions
- Adenocarcinoma, which typically originates in glandular structures that secrete mucus
- Recurrent cancer
What We Do
- Target the tumor only
- Protect the stomach, heart, lungs and spinal cord
- Maintain your quality of life during treatment
- Reduce side effects of treatment, including pain with swallowing, nausea, vomiting, weight loss, heartburn and dehydration
- Lower the risk of secondary cancer due to radiation
Treatment planning analyses suggest that the radiation dose intended for the esophagus that is instead delivered to the heart along its path is significantly less with proton beam therapy:
Radiation dose delivered to the heart with X-ray radiation1
Radiation dose delivered to the heart with proton beam therapy1
Benefits of Proton Therapy for Esophageal Cancer
- Our pencil beam scanning technology precisely controls protons to place the Bragg peak, the point at which they deposit their maximum energy directly in the tumor. This technology allows us to treat more complex tumor shapes and vary the dose within the tumor.
- Advanced proton therapy for esophageal cancer allows doctors to more selectively deliver high-dose radiation to cancerous esophageal tumors and tissues, and reduce the dose to surrounding healthy tissues and critical organs. In some cases, this has been shown to deliver higher cure rates than X-ray radiation treatment even in some of the most challenging situations.
- Reduced radiation to healthy tissues around the esophagus can significantly minimize damage to the heart, lungs, stomach and spinal cord and potentially reduce cardiac- and lung-related illness and death. This treatment includes lowering the risk for radiation pneumonitis, lung complications, heart disease and heart failure.
- Specialized techniques can be used with proton therapy to target a moving tumor with great technical precision, and this is important for esophageal cancer patients because every time you breathe, your esophagus moves.
- Unlike with older technology, the treatment plan can be completed within a matter of minutes, and these treatments are noninvasive and convenient so patients can get back to their daily activities quicker.
What Does Esophageal Cancer Treatment Typically Look Like?
The standard of care for esophageal cancer involves a combination of chemotherapy and radiation delivered together, followed by a surgical evaluation. Proton therapy radiation is administered five days per week over the course of approximately five and a half weeks.
After completing this phase of treatment, patients return 6-8 weeks later for repeat imaging scans and a scope procedure to assess the response to therapy, and confirm there is no disease progression before a surgeon evaluates whether surgery is appropriate.
What Side Effects Does Proton Therapy Help Avoid?
Side effects from radiation treatment originate from stray radiation reaching healthy organs that were not the intended target. With proton therapy, because the dose is tightly controlled and stops at the tumor, the organs surrounding the esophagus receive significantly less radiation.
Here is how each key organ is protected:
Heart
When the heart receives scattered radiation, the blood vessels and cardiac muscle can sustain what is known as microinjury, which is subtle but cumulative damage to the heart. Proton therapy’s precision dramatically reduces this cardiac radiation dose.
Lungs
Excess radiation to the lungs can cause inflammation and scarring of lung tissue, a condition known as radiation pneumonitis, which can reduce breathing capacity and quality of life. By limiting the radiation dose that reaches the lungs, proton therapy lowers the risk of these complications both during and after treatment.
Liver
The liver’s proximity to the esophagus places it at risk during conventional radiation. Depending on a patient’s liver health, stray radiation can destroy healthy liver cells that are vital for filtering toxins from the blood and supporting digestion. Proton therapy’s targeted precision helps protect liver function throughout the treatment course.
Is
Proton Therapy for Esophageal Cancer
Right for You?
Depending on the stage of esophageal cancer, combined treatments of endoscopic procedures, surgery, chemotherapy and radiation may be needed for some esophageal tumors. Treatment options are also affected by the type of esophageal cancer, age, overall health and personal preferences.
Treatment for Recurrent Cancer
Proton therapy is often the best way to treat recurrent tumors in areas that have previously been treated with radiation therapy.
Treating previously irradiated areas can be challenging. The healthy tissues around the recurrent tumor do not fully “forget” the previous radiation dose, and any added dose continues to increase the risk of normal tissue injury. Proton therapy may enable doctors to better concentrate the dose to the target and limit it elsewhere, allowing re-treatment with radiation in select patients.
Treatment Outcomes & Long-Term Effects
Proton therapy treatment at California Protons Cancer Therapy Center in San Diego may offer similar outcomes to standard X-ray radiation, while reducing long-term and potentially life-threatening side effects as radiation pneumonitis, lung complications, heart disease and heart failure. It also may lower chances for secondary cancers later in life due to the reduced radiation exposure to your surrounding healthy tissues and organs.
However, all cancer treatments have advantages and disadvantages, so be sure to discuss all of the potential risks, as well as treatment options, with your oncologist.
Contact California Proton Therapy Center Today
If you or a loved one has been diagnosed with esophageal cancer, the team at California Protons Cancer Therapy Center is here to help. Our specialists are committed to delivering the most precise, advanced radiation treatment available while protecting your quality of life throughout the process. Contact us today to schedule a consultation and learn whether proton therapy for esophageal cancer is the right option for you.
Frequently Asked Questions About Proton Therapy for Esophageal Cancer
Does Proton Therapy Work for Esophageal Cancer?
Yes, proton therapy is a highly effective treatment for esophageal cancer. By delivering a precise beam directly to the tumor, it protects the surrounding heart, lungs, and liver from the stray radiation that is unavoidable with conventional X-ray treatment.
What is The Course of Treatment for Proton Therapy for Esophageal Cancer?
At California Protons, proton therapy for esophageal cancer is delivered five days a week for approximately 5-7 weeks, with daily sessions lasting 20 to 30 minutes. Treatment begins with a simulation and planning session where our team creates a custom three-dimensional model of the tumor. Our pencil beam scanning technology precisely targets the tumor with a concentrated dose of radiation while sparing the heart, lungs, and liver. After completing treatment, patients return 6-8 weeks later for follow-up imaging and a scope procedure before meeting with a surgeon to determine next steps.
What are the Benefits of Treating Esophageal Cancer with Proton Therapy?
Proton therapy delivers radiation directly to the tumor and stops, with little to no dose beyond it. By keeping radiation tightly confined to the tumor, proton therapy significantly reduces the risk of heart complications, lung damage, and postoperative issues compared to conventional X-ray radiation.
What Side Effects does Proton Therapy Help Patients Avoid?
Proton therapy stops at the tumor with little to no exit dose, significantly reducing radiation exposure to the surrounding healthy organs. For the heart, it limits microinjury to blood vessels and cardiac muscle that can contribute to heart disease or failure years after treatment. For the lungs, it lowers the risk of radiation pneumonitis, a condition that causes inflammation and scarring that can permanently reduce breathing capacity. For the liver, it protects healthy liver cells responsible for filtering toxins and supporting digestion.
How Does Esophageal Cancer Usually Develop?
Esophageal cancer develops when cells in the lining of the esophagus undergo DNA changes that cause them to grow abnormally, often due to long-term irritation.
The most common cause is chronic acid reflux (GERD), which can lead to a pre-cancerous condition called Barrett’s esophagus and eventually adenocarcinoma in the lower esophagus. Tobacco use, heavy alcohol consumption, and regularly drinking very hot liquids are common causes and can be linked to squamous cell carcinoma, which typically develops in the upper and middle portions of the esophagus. Because symptoms like difficulty swallowing may not appear until the cancer is more advanced, early evaluation is important for anyone with persistent reflux or swallowing difficulties.