Analysis of the therapeutic effect of transanal endoscopic microsurgery on large rectal adenoma.

Journal of minimal access surgery(2022)

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摘要
Purpose:Rectal adenoma, a pre-cancerous lesion, is one of the indications for transanal endoscopic microsurgery (TEM). TEM has its unique advantages in the treatment of rectal adenomas. However, there are few reports on the therapeutic effects of large rectal adenoma (LRA). The objective of this study was to investigate the value of TEM in the treatment of LRA. Materials and Methods:We collected data from patients who underwent surgery at our center from 2007 to 2017. The postoperative pathology of all patients was rectal adenoma and the diameter of the adenoma was 3 cm or greater. Moreover, all patients underwent TEM. We followed up to observe the incidence of no wound healing, rectal stenosis and recurrence rate of rectal adenoma. The risk factors of adenoma recurrence and wound healing were analysed using single- and multiple-factor analysis. Results:The clinicopathological data of 85 patients with LRA were collected through a pre-set table. During the follow-up period, eight patients were lost to follow-up, and three (3.90%) patients developed rectal stenosis. After 2 years of post-operative follow-up, 20 (25.97%) patients had recurrence and 57 (74.03%) patients had no recurrence. Multivariate analysis showed that positive margin was an independent risk factor for recurrence of adenoma. Conclusions:TEM is feasible in the treatment of large rectal tumours in Centers of Expertise with the technique.
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