Aim. The objective of this retrospective pilot study was to investigate the technical aspects and immediate results of transanal endomicroscopic surgery (TEM) for preinvasive rectal carcinoma and villous polyps.
Methods. 18 patients with villous polyps and 4 patients with preinvasive carcinoma (Tis) were included to the study. Mean age was 55.8±8.4 men/women ratio was 33/67%. All the patients were operated by the usage of trade mark single port devices and original constructed devices.
Results. The mean distance to the lower border of the tumor was 7 (4–10) см, operative time — 72.5 (45–150) min, mean blood loss — 35 (20–60) ml. In 50% of the cases tumors were localized on the anterior wall. The difference of the anal continence score before and after 30 days interval after procedures was not statistically accurate and was 0.5 (0–2) and 1.5 (0–3) respectively.
Conclusion. TEM procedures for benign tumors and early rectal cancer are the serious alternative to the conventional local excisions due to the superior visualization, guaranteed clear margins, less sphincter damage, minimal morbidity.