Answer: a) Pain Abdomen
In radiation proctitis, surgery is typically indicated for complications that are severe or unmanageable through conservative measures.
A) Pain Abdomen: While abdominal pain can be a symptom associated with radiation proctitis, it is not an indication for surgery on its own. Pain management and other conservative treatments can be employed first.
B) Rectal stricture: This can cause significant obstruction and may require surgical intervention to restore normal bowel function.
C) Haemorrhage: Severe bleeding may necessitate surgical intervention if not controlled by endoscopic or conservative measures.
D) Vesical Fistula: A serious complication that often requires surgical repair.
Classification:
- Acute: Within 6 months of starting radiation
- Chronic: After 6 months (usually 8–12 months post therapy)
Radiation Proctitis Severity (RTOG):
- Grade 1: Mild, self-limiting
- Grade 2: Conservative management required
- Grade 3: Severe, affects lifestyle
- Grade 4: Life-threatening → Surgery needed
Prevention:
- Conformal radiation techniques
- Amifostine (free radical scavenger)
- Sucralfate not beneficial in trials
Treatment:
Medical:
- Butyrates
- 5-ASA
- Sucralfate
- Metronidazole
- Short chain fatty acids
- Topical formalin
- Hyperbaric oxygen
Endoscopic:
- Dilatation
- Heater probe / bipolar cautery
- Nd:YAG laser
- APC
- RFA
Surgery:
- Diverting ostomy – for stricture/incontinence
- Flap reconstruction – gracilis/Martius flap for fistula
- Proctectomy – severe fistula, pain, intractable bleeding