Surveillance of patients following surgery with curative intent for colorectal cancer

Table 1 Recommendations of the Australian Cancer Network (ACN)[93], Association of Coloproctology of Great Britain & Ireland (ACPGBI)[79] and the American Society of Colon and Rectal Surgeons (ASCRS)[80] for post-operative follow-up

	ACN	ACPGBI	ASCRS
Clinical review	3-6 monthly for 2 yr, then 6-12 monthly thereafter	No recommendation for frequency	3 times per year
	No end time	No end time	Minimum of 2 years
Laboratory tests	CEA 3-6 monthly	No recommendation for CEA, LFT, or FBC	CEA recommended
	No recommendation for LFT or FBC		LFT & FBC not recommended
Imaging	CT liver (no recommendation for timing)	Liver imaging within 2 yr of resection if asymptomatic	Not recommended
Colonoscopy	Completion colonoscopy within 3-6 mo if not done pre-operatively	Completion colonoscopy within 6 mo if not done pre-operatively	Completion colonoscopy within 6 mo if not done pre-operatively
	3-5 yearly	3-5 yearly	3 yearly
	No end time	No end time	No end time
Faecal occult blood tests	No recommendation	No recommendation	No recommendation