Raising Awareness
The importance of taking a family history.
- Family history taking is a neglected part of the assessment of patients in primary care.
- Patients often have little understanding of possible inherited predisposition in relation to cancer.
Prevention
Cigarette smoking and dietary factors have been linked with colorectal cancer - Provide dietary information and encourage eating plenty of vegetables and fruit.
- Encourage patients to stop smoking.
Screening
General Screening - no screening programme for general population
Risk Directed Screening - Positive family History - First degree relative with colorectal cancer <45 years and members of families with multiple cancers
- Genetic syndromes
- Chronic Inflammatory Bowel Disease
- Pre-existing Colorectal Adenoma or Carcinoma
Diagnosis & Referral - Symptoms and warning signs that warrant Investigation
- Rectal bleeding in patients aged 45 or over
- A palpable rectal lesion on PR
- Altered bowel habit lasting 6 weeks or more
- Blood seen on bowel wall or on glove after PR (haemorroids only bleed on defecation)
- Tenesmus
- Passage of mucous PR
- Abdominal pain associated with any of the above
Physical Examination - Abdominal and digital rectal examination (10% of rectal cancers are palpable)
In case of suspected colorectal cancer the large bowel should be completely examined by either - colonoscopy or flexible sigmoidoscopy plus double contrast Barium Enema
Appropriate investigations pending hospital appointment - A FBC - unrecognised anaemia may delay surgery
- FOB testing doesn't contribute to management of symptomatic patients
Follow up
Whether the General Practitioner is directly involved with the clinical follow up or not he/she should ensure: - All patients are seen within 3 months of surgery to assess late complications.
- Colonoscopy within 1 year to confirm clear colon.
- USS of liver 1 year after surgery in any patient considered a candidate for hepatic resection if metastases were detected.
- All patients who have had a Total Mesorectal Excision are followed up for purpose of auditing surgeons performance of technique.
- Follow up of those patients who request it for psychological reassurance.
- Younger patients and those with a history of multiple colonic lesions have regular colonoscopy at 3-5 year intervals.
