Treatment of Chronic Radiation Proctitis: Grade 2 to Grade 3

Chronic radiation proctitis (CRP) requires systematic grading before treatment selection. In patients confirmed at Grade 2 or Grade 3, clinically significant rectal bleeding is the primary concern driving the need for active intervention.

Clinical scenario

Grade 2Grade 3 This protocol addresses patients with established chronic radiation proctitis graded at 2 or 3. Accurately establishing the grade of CRP is a required step before proceeding to the interventional approach described in the full regimen.

Treatment approach — partial overview

Management in this setting involves endoscopic or topically applied interventions targeting the bleeding rectal mucosa. Some procedures in this protocol require a specific preparatory step before they can be safely performed. The full regimen — including the complete selection criteria, procedural sequence, and follow-up considerations — is available via the link below.

Treatment goal

The primary clinical endpoint is cessation or substantial decrease in rectal bleeding (hemostasis).

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References

DOI: 10.5946/ce.2020.288

Chronic radiation proctitis (CRP)
Establish the grade of CRP
Grade 2
Grade 3
Formalin (formaldehyde 4%–10%) has been used in treating chronic RP over the past few decades.
ASCRS recommends using argon beam plasma coagulation (APC) as it is a safe and effective modality for treating chronic RP.
A complete bowel lavage should be performed prior to APC therapy to evacuate combustible gas and prevent bowel explosion with perforation.
Neodymium-doped yttrium aluminum garnet laser can also be used to coagulate the bleeding vessel in these patients.
The literature reports the need for a median of two APC sessions (range: 1–5 sessions) to control rectal hemorrhage, thereby resulting in cessation or a substantial decrease in bleeding in 79%–100% of the patients.

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