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The aim of this literature review was to a highlight the basic concepts of artificial intelligence in medicine, focusing on the application of this area of technological development in changes of surgery. PubMed and Google searches were performed using the key words “artificial intelligence”, “surgery”. Further references were obtained by cross-referencing the key articles.The integration of artificial intelligence into surgical practice will take place in the field of education, storage and processing of medical data and the speed of implementation will be in direct proportion to the cost of labor and the need for “transparency” of statistical data.

Objective: to asses safety of installation intracorporeal anastomosis (ICA) in routine practice at learning curve period.Materials and methods. The results of treatment of 102 patients during 2019 were retrospectively analyzed, of which 64 were operated by an expert and 38 passing the ICA learning curve.Results. The operation time was shorter for the expert (145 minutes versus 210 minutes, p 0.05).Conclusions. The introduction of ICA in right colectomy into routine practice at the stage of passing the learning curve is safe and applicable.

In 2017, esophageal cancer was detected in 7126 patients, including 1962 patients with cervical esophageal cancer. Metastases in regional lymph nodes were detected in 60–70 % of cases. the 5-year survival rate was 25–50 %. Currently, the benefits of minimally invasive surgeries for cancer have been proven, but these surgeries have restricted indications leiomyosarcoma is a rare malignant tumor of smooth muscle, accounting for about 0.3 % of the malignant tumors of the esophagus. Case presentation. in our first clinical case, we have shown the feasibility of performing surgical resection of cervical esophageal carcinoma with larynx preservation. We have described a rare postoperative complication bending of the graft. the complication was resolved and good voice, protective and swallowing functions were achieved. in the second case, the tumor initially spread to the pear-shaped sinus and beyond the cricoid area, which was a contraindication for the organ-preserving surgery. Conclusion. the extent of surgery should always be planned taking into account the extension of the primary tumor. in our practice, we prefer to use visceral (intestinal) transplants for patients with circular pharyngeal defects, thus allowing radical surgery to be performed and esophageal motility to be restored. this technique helps patients recover faster after surgery.

In last two decades, transanal endoscopic microsurgery (TEM) in treatment of both benign and malignant tumor of rectum is actively developing. The aim of this review was to describe the current status of transanal interventions. Due to the low level of recurrens (mean about 6 %) TEM has become the method of choice for removal of rectal adenomas. Several studies have demonstrated the benefits of treatment TEM in cases of early T1 cancer compared to conventional resection. However, for more invasive adenocarcinomas performing TEM remains controversial, but it’s very promising method for the complex treatment. Just as transanal mesorectal exision in treatment of mid- and low rectal cancer as a new strategy – natural orifice transluminal surgery. However, it lack of evidence base and international experience in small series presented, so large randomized trials is needed.