Diagnostic Yield of Advanced Colorectal Neoplasia at Colonoscopy, According to Indications: An Investigation from the Korean Association for the Study of Intestinal Diseases (KASID)

Park, D.; Kim, Y.; Kim, W.; Kim, T.; Kim, H.; Byeon, Jung-Sik; Lee, M.; Jung, In Sub; Chung, Marcia A.; Jung, Sung-Ae; Jeen, Yoon-Tae; Choi, Jeewook; Choi, Hwang; Han, Dong Soo; Song, Jie

doi:10.1055/s-2006-944761

Cited by 2 publications

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“…In previous studies, the prevalence of adenoma and advanced adenoma in Korea was 23.9-33.1% and 2.1-7.1%, respectively. [11][12][13] According to the results of the present study, adenoma cases appear to be increasing in Korea. The difference between the adenoma detection rate of this study and other studies may have resulted from the trends of the times and differences in the study design and institution type (i.e., primary clinics vs. tertiary hospitals).…”

Section: Discussionsupporting

confidence: 62%

Colon Polyp Detection in Primary Health Care Institutions of Korea: Detection Rate and Issues with Following the Guidelines

Park¹,

Hong²,

Park

et al. 2021

Korean J Gastroenterol

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Background/Aims: There have been few multicenter studies on colonic polyps conducted by primary medical institutions. This study examined the detection rate of colonic polyps in primary health care institutions and the related factors while following the guidelines. Methods: The medical records of 14,029 patients who underwent colonoscopy between January-June 2020 at 40 primary medical institutions in Korea were analyzed. High-risk adenoma was defined as advanced adenoma, carcinoma, or ≥3 adenomas. Results: Most patients (71.2%) aged ≥50 years underwent re-colonoscopy within 5 years (51.3%) for diagnostic purposes (61.3%) in Korean primary medical institutions. The detection rates of colon polyps, adenoma, advanced adenoma, high-risk adenoma, and carcinoma was 59.9%, 38.9%, 5.9%, 11.4%, and 0.3% in all subjects and 59.8%, 37.5%, 8.5%, 12.9%, and 0.3% in average-risk patients, respectively. The incidences of adenoma in average-risk patients increased significantly with age (30s/40s/50s: 20.1%/29.4%/43% for adenoma, 4.4%/6.7%/10.3% for advanced adenoma, and 5.6%/9.5%/14.6% for high-risk adenoma; p<0.05). Before 50 years of age, high-risk adenoma was detected in 9.1% of patients in the first-time screening group, and the significant risk factors were being male and ≥40 years of age. The detection rate of high-risk adenoma in the normal index colonoscopy group within 5 years was 9.0%. The significant risk factors included older age, male sex, positive fecal occult blood test, stool form changes, and nonspecific symptoms (gas and indigestion). Conclusions: More colonic adenoma studies targeting real-world clinical practice will be needed to revise the Korean guidelines for colorectal cancer screening and surveillance.

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Section: Discussionsupporting

confidence: 62%

Colon Polyp Detection in Primary Health Care Institutions of Korea: Detection Rate and Issues with Following the Guidelines

Park¹,

Hong²,

Park

et al. 2021

Korean J Gastroenterol

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“…In our study, colon cancer was not seen, but colon polyps were observed from 172 patients (31.4%). There are very few data on the prevalence of polyp in healthy adults in Korea, but the number was higher than 21.3% which was the prevalence of polyp in healthy adults with no symptoms who were in the same hospital at a similar time [15] , and higher than 23.9% which was reported by Park et al [16] who performed the study with 17 468 patients in the tertiary hospital. In the study of Park et al [16] .…”

Section: Discussionmentioning

confidence: 97%

“…There are very few data on the prevalence of polyp in healthy adults in Korea, but the number was higher than 21.3% which was the prevalence of polyp in healthy adults with no symptoms who were in the same hospital at a similar time [15] , and higher than 23.9% which was reported by Park et al [16] who performed the study with 17 468 patients in the tertiary hospital. In the study of Park et al [16] . the mean age of the patients was 52.3 years, but most of patients (12 941 patients, 73.8%) were transferred to the tertiary hospital with warning symptoms such as bowel habit change, stool caliber change, anemia, weight loss, etc.…”

Section: Discussionmentioning

confidence: 97%

Role of computed tomographic colonoscopy of postoperative surveillance in patient with gastric cancer

Jun¹

2007

WJG

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AIM:To examine the diagnostic yield of colorectal neoplasia at computed tomographic colonoscopy (CTC) as well as the feasibility of contrast enhanced CTC in patients with gastric cancer. METHODS:To examine the incidence of colon polyp we selected postoperative 188 gastric cancer patients, which we refer to as the 'colon polyp survey group'. To examine the feasibility of CTC for early detection of colon cancer or advanced colon adenoma, we selected 47 gastric cancer patients (M:F 29:18, mean age 53.8 years), which we call the 'CT colonoscopy group'. All the 47 patients underwent successive CTC and colonoscopy on the same day. RESULTS:Totally 109 colon polyps were observed from 59 out of 188 gastric cancer patients, the incidence rate of colon polyps in gastric cancer patients being 31.4%. The sensitivity of CTC in detecting individuals with at least 1 lesion of any size was 57.1%, the specificity was 72.7%, the positive predictive value was 47.1%, and the negative predictive value was 71.9%. When the cutoff size was decreased to 6 mm, the sensitivity and specificity were 80.0% and 92.9%, respectively, with positive and negative predictive values of 57.1% and 97.5%, respectively. Only one patient was classified as false negative by virtual colonoscopy. CONCLUSION:The diagnostic yield of colorectal polyp was 31.4% in patients with gastric cancer, and contrast enhanced CTC is an acceptable tool for the detection of synchronous colorectal advanced adenoma and postoperative surveillance of gastric cancer patients.

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Diagnostic Yield of Advanced Colorectal Neoplasia at Colonoscopy, According to Indications: An Investigation from the Korean Association for the Study of Intestinal Diseases (KASID)

Cited by 2 publications

References 0 publications

Colon Polyp Detection in Primary Health Care Institutions of Korea: Detection Rate and Issues with Following the Guidelines

Colon Polyp Detection in Primary Health Care Institutions of Korea: Detection Rate and Issues with Following the Guidelines

Role of computed tomographic colonoscopy of postoperative surveillance in patient with gastric cancer

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