Prostate Cancer- Radiation Enteritis Therapies

Prostate cancer- radiation enteritis therapies– I just now came across your website. I have chronic radiation enteritis and will be getting surgery next month to remove 12 inches of my colon to damage from IMRT and Brachytherapy.

I was originally diagnosed as a Gleason 9 4+5 then downgraded to Gleason 7 4+3 by John Hopkins. I have been in pain for 5 months due to stricture in my colon about 5-6 inches from my rectum. It’s a horrible price to pay for beating a cancer that I would have no doubt outlived.

The idiot GI surgeon in my home town insisted it was ischemic colitis for the 5 months. Last week I went to Cleveland Clinic for a second option. It took their surgeon 2 hours of asking questions and testing for their diagnosis.

The radiation damage was obvious as I viewed it on a large monitor during a sigmoidoscopy. The surgery will be done using the Da Vinci robotic. The operation will take approximately 4 hours to complete with 3 months of healing. That’s 8 months of total misery Taken from my 73 year old life.

The radiation was done about 5 years ago and the thought of colon damage had never entered my mind until this happened. I don’t know for certain that I’ll someday return to my former self. There always seems to be a downside to curing prostate cancer regardless of one’s choice.

A colon stricture can become deadly if it blocks the passage of stool and ruptures upstream (sepsis).

Because it’s chronic I doubt anything other than surgery can correct it. If you know of any other possibilities for me please reply. HBOT would take far too long after this much time has evolved. Had the diagnosis been correct in the first place I may have tried it but now it’s far to dangerous to wait it out.

I’m sure all the dangers of radiation were in some small print somewhere that I cheerfully signed when I wad told of this miracle radiation cure.

Thank you, nice to know I’m not the only one.

I am a long-term cancer survivor and cancer coach. I research side effects from cancer therapies, such as chronic radiation enteritis, in an effort to help cancer survivors manage their short-term, long-term, and late-stage side effects.

Chronic radiation enteritis (CRE) is a late effect of abdominal or pelvic radiation therapy. It can develop months to years after treatment and may cause diarrhea, malabsorption, abdominal pain, bleeding, strictures, and weight loss.

Management typically requires a multimodal approach: nutritional support, medications, endoscopic interventions, and occasionally surgery.

Below is a structured overview of evidence-based and commonly used therapies.

David Emerson

Cancer Survivor
Cancer Coach
Director PeopleBeatingCancer

Prostate cancer- radiation enteritis therapies Prostate cancer- radiation enteritis therapies

1. Nutritional & Dietary Therapy

Low-Residue / Low-Fiber Diet

Reduces stool volume and mechanical irritation.

Avoid raw vegetables, nuts, seeds, and popcorn
Limit high-fat and highly processed foods

Lactose Restriction

Radiation may induce secondary lactose intolerance.

Small, Frequent Meals

Improves tolerance and nutrient absorption.

Oral Rehydration Solutions

Prevents dehydration in patients with chronic diarrhea.

Elemental or Semi-Elemental Diets

Used in severe malabsorption cases.

Vitamin & Mineral Repletion

Common deficiencies:

Vitamin B12
Fat-soluble vitamins (A, D, E, K)
Iron
Magnesium

2. Anti-Diarrheal & Symptom-Control Medications

Loperamide

First-line therapy for chronic diarrhea.

Diphenoxylate/Atropine

Alternative anti-diarrheal.

Bile Acid Sequestrants (e.g., cholestyramine)

Helpful if bile acid malabsorption contributes.

Octreotide

Reduces secretory diarrhea in refractory cases.

Antispasmodics

For cramping and abdominal pain.

3. Anti-Inflammatory & Mucosal Therapies

Sucralfate

Coats the mucosa and may reduce bleeding or irritation.

Budesonide

Locally active corticosteroid with fewer systemic effects.

5-ASA (Mesalamine)

Mixed evidence, but sometimes used for inflammation.

Topical Steroid Enemas

More useful if the rectum is involved (radiation proctitis).

4. Hyperbaric Oxygen Therapy (HBOT)

Mechanism: Improves tissue oxygenation and promotes angiogenesis in radiation-damaged tissue.

Evidence:

Shown to reduce bleeding and pain in radiation enteritis/proctitis
Particularly useful for chronic radiation-induced tissue injury

Often considered when symptoms are refractory to medical therapy.

5. Endoscopic Therapies (for Bleeding)

Argon Plasma Coagulation (APC)

Commonly used to treat bleeding telangiectasias.

Endoscopic Laser Therapy

Used in select cases.

6. Antibiotics (If Bacterial Overgrowth)

Radiation may cause dysmotility → small intestinal bacterial overgrowth (SIBO).

Treatment options:

Rifaximin
Metronidazole
Cyclic antibiotic regimens

7. Probiotics & Microbiome Support

Emerging evidence suggests gut microbiome modulation may:

Reduce inflammation
Improve stool consistency
Support mucosal healing

Evidence is stronger in radiation proctitis than diffuse enteritis, but this area is evolving.

8. Surgical Intervention

Reserved for complications:

Strictures
Fistulas
Obstruction
Perforation

Surgery carries a higher risk due to poor tissue healing in irradiated areas.

Complementary & Integrative Therapies (Evidence-Informed)

Some therapies under investigation include:

Glutamine supplementation (mixed results)
Omega-3 fatty acids (anti-inflammatory support)
Curcumin (anti-inflammatory, limited human data)
Short-chain fatty acid enemas (more for proctitis)
IV Vitamin C (theoretical anti-inflammatory effects, limited CRE-specific data)

These should always be discussed with an oncologist or gastroenterologist.

Summary: Treatment Hierarchy

Dietary modification + anti-diarrheal therapy
Evaluate for bile acid malabsorption or SIBO
Add anti-inflammatory or mucosal agents
Consider HBOT for refractory cases
Endoscopic treatment for bleeding
Surgery for structural complications

Prostate cancer- radiation enteritis therapies