Chronic radiation proctitis: tricks to prevent and treat

Area of Science:

• Oncology
• Radiation Oncology
• Gastroenterology

Background:

• Chronic radiation proctitis (CRP) is a common side effect of pelvic radiotherapy, affecting 5-20% of patients.
• CRP's incidence and severity are linked to the radiation dose and volume delivered to the rectum.

Purpose of the Study:

• To review current strategies for preventing chronic radiation proctitis (CRP).
• To outline a treatment algorithm for managing CRP.

Main Methods:

• A comprehensive literature search of medical databases (PubMed, Medline) was conducted.
• Relevant studies were critically analyzed to synthesize information on CRP prevention and treatment.

Main Results:

• Advanced radiation techniques like image-guided RT and intensity-modulated RT, along with proton therapy and rectal spacers, aim to minimize rectal damage.
• Biopsies for CRP diagnosis are not recommended due to risks of severe complications like necrosis and fistulas.
• Current treatment options for CRP lack consensus and include topical/oral agents, hyperbaric oxygen, and endoscopic interventions.

Conclusions:

• CRP often improves spontaneously over time, emphasizing the importance of conservative management.
• Initial treatment should focus on conservative measures (topical and oral agents).
• Invasive treatments for CRP carry significant toxicity risks and should be approached cautiously.