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Effect of High-Grade Disease on Colon
Cancer Outcomes
02/03/15
10th
Annual Academic Surgical Congress, February 3-5 2015, Las Vegas, NV
07 - QuickShot: Clinical Research - Oncology
Ramzi Amri, MD1,2
Liliana G Bordeianou, MD, MPH1,2
Patricia Sylla, MD1,2
and
David L Berger, MD 1,2
1
Massachusetts General Hospital, Division of General and Gastrointestinal Surgery.
2
Harvard Medical School, Department of Surgery.
Disclosures: none
Introduction
• Tumor grade is a cardinal surgical pathological
characteristic of any malignancy.
• High-grade disease invariably has a negative
impact on the eventual outcomes of the
concerned malignancy.
• We aimed to measure the magnitude of its
influence as well as its stage-independent effect
in colon cancer.
Methods
• Included:
• Surgical colon cancer patients at MGH 2004-2011 with known
disease grade (n=961)
• Comparison
• Baseline pathology:
• RR of nodal and distant metastasis
• Outcomes:
• Risk of recurrence,
• Overall and disease-specific mortality
• Statistical analysis
• Ordinal: χ2
, continuous: Mann Whitney U
• Multivariate: logistic regression, AJCC-adjusted
Results
Conclusions
• High-grade disease on baseline colon cancer surgical
pathology is associated with a considerably higher rate
of nodal and distant metastasis.
• Colon cancer-related mortality doubles for patients with
high-grade disease.
• All of these findings were shown to be independent of
baseline staging.
 High tumor grade is a stage-independent factor greatly
influencing colon cancer outcomes and mortality.
Questions?
Questions?

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Effect of High-Grade Disease on Colon Cancer Outcomes

  • 1. Effect of High-Grade Disease on Colon Cancer Outcomes 02/03/15 10th Annual Academic Surgical Congress, February 3-5 2015, Las Vegas, NV 07 - QuickShot: Clinical Research - Oncology Ramzi Amri, MD1,2 Liliana G Bordeianou, MD, MPH1,2 Patricia Sylla, MD1,2 and David L Berger, MD 1,2 1 Massachusetts General Hospital, Division of General and Gastrointestinal Surgery. 2 Harvard Medical School, Department of Surgery. Disclosures: none
  • 2. Introduction • Tumor grade is a cardinal surgical pathological characteristic of any malignancy. • High-grade disease invariably has a negative impact on the eventual outcomes of the concerned malignancy. • We aimed to measure the magnitude of its influence as well as its stage-independent effect in colon cancer.
  • 3. Methods • Included: • Surgical colon cancer patients at MGH 2004-2011 with known disease grade (n=961) • Comparison • Baseline pathology: • RR of nodal and distant metastasis • Outcomes: • Risk of recurrence, • Overall and disease-specific mortality • Statistical analysis • Ordinal: χ2 , continuous: Mann Whitney U • Multivariate: logistic regression, AJCC-adjusted
  • 5. Conclusions • High-grade disease on baseline colon cancer surgical pathology is associated with a considerably higher rate of nodal and distant metastasis. • Colon cancer-related mortality doubles for patients with high-grade disease. • All of these findings were shown to be independent of baseline staging.  High tumor grade is a stage-independent factor greatly influencing colon cancer outcomes and mortality.