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Postpolypectomy colonoscopy surveillance guidelines: predictive accuracy for advanced adenoma at 4 years.
Ann Intern Med. 2008 Mar 18; 148(6):419-26.AIM

Abstract

BACKGROUND

Lack of confidence in postpolypectomy surveillance guidelines may be a factor in the observed low adherence rates among providers.

OBJECTIVE

To assess the 2006 postpolypectomy colonoscopy surveillance guidelines, which recommend 3-year follow-up colonoscopy for individuals with high-risk adenomas (defined as > or =3 adenomas or any advanced adenomas) and 5- to 10-year follow-up for patients with 2 or fewer nonadvanced adenomas, who are considered to be at low risk.

DESIGN

Analysis of prospective data from the Polyp Prevention Trial.

SETTING

United States.

PARTICIPANTS

1905 patients who had colorectal adenomas removed at baseline screening or diagnostic colonoscopy and completed the trial.

MEASUREMENTS

Baseline adenoma characteristics, risk-stratified according to definitions used in the guidelines, were examined as predictors for advanced adenoma recurrence.

RESULTS

125 patients (6.6%) had advanced and 629 (33.0%) had nonadvanced adenoma recurrence; 1151 (60.4%) had no recurrence within 4 years of follow-up. The probability of advanced adenoma recurrence was 0.09 (95% CI, 0.07 to 0.11) among patients with high-risk adenomas at baseline and 0.05 (CI, 0.04 to 0.06) among those with low-risk adenomas at baseline. The relative risk for advanced adenoma recurrence for patients with high-risk adenomas versus those with low-risk adenomas at baseline was 1.68 (CI, 1.19 to 2.38) when advanced adenoma recurrence was compared with no advanced adenoma recurrence and 1.76 (CI, 1.26 to 2.46) when advanced adenoma recurrence was compared with no adenoma recurrence. The c-statistics for these 2 comparisons were 0.68 and 0.72, respectively.

LIMITATION

Participants were self-selected and had restrictions on the degree of obesity.

CONCLUSION

Although the risk for recurrence of advanced adenoma within 4 years is greater for patients with high-risk adenomas at baseline than for those with low-risk adenomas, the discrimination of this risk stratification scheme is relatively low.

Authors+Show Affiliations

Cancer Prevention Fellowship Program, Biometry Research Group, Divisionof Cancer Prevention, National Cancer Institute, National Institutes of Health, Bethesda, Maryland 20892, USA. laiyemoa@mail.nih.govNo affiliation info availableNo affiliation info availableNo affiliation info availableNo affiliation info availableNo affiliation info availableNo affiliation info availableNo affiliation info availableNo affiliation info availableNo affiliation info availableNo affiliation info availableNo affiliation info availableNo affiliation info availableNo affiliation info availableNo affiliation info availableNo affiliation info availableNo affiliation info availableNo affiliation info availableNo affiliation info available

Pub Type(s)

Journal Article
Multicenter Study
Randomized Controlled Trial
Research Support, N.I.H., Intramural

Language

eng

PubMed ID

18347350

Citation

Laiyemo, Adeyinka O., et al. "Postpolypectomy Colonoscopy Surveillance Guidelines: Predictive Accuracy for Advanced Adenoma at 4 Years." Annals of Internal Medicine, vol. 148, no. 6, 2008, pp. 419-26.
Laiyemo AO, Murphy G, Albert PS, et al. Postpolypectomy colonoscopy surveillance guidelines: predictive accuracy for advanced adenoma at 4 years. Ann Intern Med. 2008;148(6):419-26.
Laiyemo, A. O., Murphy, G., Albert, P. S., Sansbury, L. B., Wang, Z., Cross, A. J., Marcus, P. M., Caan, B., Marshall, J. R., Lance, P., Paskett, E. D., Weissfeld, J., Slattery, M. L., Burt, R., Iber, F., Shike, M., Kikendall, J. W., Lanza, E., & Schatzkin, A. (2008). Postpolypectomy colonoscopy surveillance guidelines: predictive accuracy for advanced adenoma at 4 years. Annals of Internal Medicine, 148(6), 419-26.
Laiyemo AO, et al. Postpolypectomy Colonoscopy Surveillance Guidelines: Predictive Accuracy for Advanced Adenoma at 4 Years. Ann Intern Med. 2008 Mar 18;148(6):419-26. PubMed PMID: 18347350.
* Article titles in AMA citation format should be in sentence-case
TY - JOUR T1 - Postpolypectomy colonoscopy surveillance guidelines: predictive accuracy for advanced adenoma at 4 years. AU - Laiyemo,Adeyinka O, AU - Murphy,Gwen, AU - Albert,Paul S, AU - Sansbury,Leah B, AU - Wang,Zhuoqiao, AU - Cross,Amanda J, AU - Marcus,Pamela M, AU - Caan,Bette, AU - Marshall,James R, AU - Lance,Peter, AU - Paskett,Electra D, AU - Weissfeld,Joel, AU - Slattery,Martha L, AU - Burt,Randall, AU - Iber,Frank, AU - Shike,Moshe, AU - Kikendall,J Walter, AU - Lanza,Elaine, AU - Schatzkin,Arthur, PY - 2008/3/19/pubmed PY - 2008/3/28/medline PY - 2008/3/19/entrez SP - 419 EP - 26 JF - Annals of internal medicine JO - Ann Intern Med VL - 148 IS - 6 N2 - BACKGROUND: Lack of confidence in postpolypectomy surveillance guidelines may be a factor in the observed low adherence rates among providers. OBJECTIVE: To assess the 2006 postpolypectomy colonoscopy surveillance guidelines, which recommend 3-year follow-up colonoscopy for individuals with high-risk adenomas (defined as > or =3 adenomas or any advanced adenomas) and 5- to 10-year follow-up for patients with 2 or fewer nonadvanced adenomas, who are considered to be at low risk. DESIGN: Analysis of prospective data from the Polyp Prevention Trial. SETTING: United States. PARTICIPANTS: 1905 patients who had colorectal adenomas removed at baseline screening or diagnostic colonoscopy and completed the trial. MEASUREMENTS: Baseline adenoma characteristics, risk-stratified according to definitions used in the guidelines, were examined as predictors for advanced adenoma recurrence. RESULTS: 125 patients (6.6%) had advanced and 629 (33.0%) had nonadvanced adenoma recurrence; 1151 (60.4%) had no recurrence within 4 years of follow-up. The probability of advanced adenoma recurrence was 0.09 (95% CI, 0.07 to 0.11) among patients with high-risk adenomas at baseline and 0.05 (CI, 0.04 to 0.06) among those with low-risk adenomas at baseline. The relative risk for advanced adenoma recurrence for patients with high-risk adenomas versus those with low-risk adenomas at baseline was 1.68 (CI, 1.19 to 2.38) when advanced adenoma recurrence was compared with no advanced adenoma recurrence and 1.76 (CI, 1.26 to 2.46) when advanced adenoma recurrence was compared with no adenoma recurrence. The c-statistics for these 2 comparisons were 0.68 and 0.72, respectively. LIMITATION: Participants were self-selected and had restrictions on the degree of obesity. CONCLUSION: Although the risk for recurrence of advanced adenoma within 4 years is greater for patients with high-risk adenomas at baseline than for those with low-risk adenomas, the discrimination of this risk stratification scheme is relatively low. SN - 1539-3704 UR - https://www.unboundmedicine.com/medline/citation/18347350/Postpolypectomy_colonoscopy_surveillance_guidelines:_predictive_accuracy_for_advanced_adenoma_at_4_years_ L2 - https://www.acpjournals.org/doi/10.7326/0003-4819-148-6-200803180-00004?url_ver=Z39.88-2003&rfr_id=ori:rid:crossref.org&rfr_dat=cr_pub=pubmed DB - PRIME DP - Unbound Medicine ER -