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Colorectal Cancer Screening and Surveillance. Johnny Altawil , M.D. PGY- VI 09/19/2012. Why should we screen for colorectal cancer?. Why should we screen?. Common: Worldwide, CRC is 2 nd in women and 3 rd in men Over 600,000 deaths in 2008
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Colorectal Cancer Screening and Surveillance Johnny Altawil, M.D. PGY- VI 09/19/2012
Why should we screen? • Common: • Worldwide, CRC is 2nd in women and 3rd in men • Over 600,000 deaths in 2008 • In US, CRC is 2nd leading cause of cancer death • 1 in 3 people who develop CRC die of this disease • Lifetime incidence for patients at average risk is 5% • 90% of cases occurring after age 50
Why should we screen? Available (we can!): many options Knowledge: adenoma-carcinoma sequence Effective: removal of premalignant adenomas can prevent the cancer and removal of localized cancer may prevent CRC-related death Screening rates for CRC in US are below national targets, 52.3 to 65.4% (50 to 75 years old) 2002-2010
The adenoma-carcinoma sequence. Adenoma-carcinoma sequence Brosens L A A et al. Gut 2005;54:1034-1043
Average vs. High Risk individuals • High risk patient: • Symptoms • Prior colorectal cancer or adenomatous polyps • Inflammatory bowel disease (IBD): ulcerative colitis (UC) or Crohn's disease (CD) • Family history of CRC or adenomatous polyps • Familial Syndromes: mainly Lynch Syndrome (Hereditary nonpolyposis colon cancer) and Familial adenomatouspolyposis (FAP)
Advantages, Limitations, and Uncertainties of Screening Tests to Detect Colorectal Cancer Lieberman D. N Engl J Med 2009;361:1179-1187
Sensitivity of One-Time Colorectal-Cancer Screening Tests Lieberman D. N Engl J Med 2009;361:1179-1187
U.S. Colorectal-Cancer Screening Guidelines, 2008 Lieberman D. N Engl J Med 2009;361:1179-1187
Considerations for Colorectal-Cancer Screening Lieberman D. N Engl J Med 2009;361:1179-1187
Surveillance GASTROENTEROLOGY , September 2012;143:844–857
Surveillance HRA is defined as 3 or more adenomas, tubular adenoma 10 mm, adenoma with villous histology, or HGD. LRA is defined as 1–2 tubular adenomas 10 mm. GASTROENTEROLOGY , September 2012;143:844–857
Personal Hx of IBD GASTROENTEROLOGY 2008;134:1570–1595
Familial Syndromes GASTROENTEROLOGY 2008;134:1570–1595
Patients With Hx of CRC GASTROENTEROLOGY 2008;134:1570–1595
Patients With Family Hx of CRC or Adenomatous Polyps GASTROENTEROLOGY 2008;134:1570–1595