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ARTICLE |

The Value of Colonoscopic Surveillance After Curative Resection for Colorectal Cancer or Synchronous Adenomatous Polyps

Goran Carlsson, MD, PhD; Nicholas J. Petrelli, MD; Hector Nava, MD; Lemuel Herrera, MD; Arnold Mittelman, MD
Arch Surg. 1987;122(11):1261-1263. doi:10.1001/archsurg.1987.01400230047008.
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• Between 1975 and 1984, 270 patients underwent a potentially curative resection for colorectal carcinoma. One hundred eighty-eight patients (70%) underwent preoperative colonoscopy, of which 129 patients (69%) were followed up with at least two postoperative colonoscopies. In 91 patients (70%), preoperative colonoscopy revealed no synchronous adenomatous polyps or cancer. Synchronous adenomatous polyps were found in 35 patients (27%), and three patients (2.3%) had a synchronous invasive cancer. Nineteen (54%) of the 35 patients with synchronous adenomatous polyps developed metachronous adenomatous polyps during the follow-up period compared with 24 (26%) of 91 patients without synchronous adenomatous polyps. The median interval to the development of metachronous adenomatous polyps was 19 months, and all of these polyps were 1 cm or less in size. Patients with synchronous adenomatous polyps less than 30 cm from the primary lesion (68%) developed metachronous polyps more often than did patients whose synchronous adenomatous polyps were more than 30 cm from the primary lesion (37%). Preoperative colonoscopy is important for determining synchronous pathology and identifying patients at risk for metachronous polyps.

(Arch Surg 1987;122:1261-1263)

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