For Patients

For patients who wish to have their procedures done at DVEC, please make sure you read over all of our exclusion criteria. Patients that fall within one or more of the exclusion criteria (below) should have their procedures done in a hospital setting instead.

For patients who are otherwise healthy, you can ask your family physician to fax over a completed referral form to 416-638-5043. If you do not have a family doctor, you can print our referral form and ask a doctor at any walk-in clinic to fill it out.

Exclusion criteria

Exclusion Criteria for a Screening-Related Colonoscopy

Patients who fulfill any of these exclusion criteria but have a strong indication for colonoscopy should be referred to an individual GI consultant for assessment.

Patient Characteristics​

  • Age less than 18 years and greater than 74 years
  • Obesity Class 3: BMI 40 or greater*

Previous Surgery

  • Cardiac related surgery (CABG, angioplasty, or stent/grafts) within past 6 months.
  • All other surgeries (e.g., chest/abdominal, joint repair) within past 3 months

Medical History

  • Cardiac
  • Acute Coronary syndrome within 12 months
  • Myocardial infarction within 12 months
  • Angina with symptoms in past 6 months
  • Congestive Heart Failure. Moderate to severe with marked limitation of activity

Respiratory

  • COPD. Moderate to severe and poorly controlled
  • Home Oxygen or Oxygen dependent
  • CPAP with a BMI greater than 35*

Neurological

  • Cerebrovascular event with significant deficits or within past 12 months
  • Seizure disorder (frequent or poorly controlled)
  • Dementia or significant cognitive impairment

Hepatic/Renal

  • End stage liver disease (any history of variceal hemorrhage and/or coagulopathy and/or encephalopathy and/or ascites).
  • Chronic renal insufficiency (glomerular filtration rate [GFR] less than 45 or creatinine greater than 150)
  • Dialysis

Other

  • Platelet count less than 100
  • Advanced HIV/AIDS
  • Any other condition that would impact life expectancy so as to make screening irrelevant.

*Note: Cases reviewed individually by screening facility.