Background. The choice of the best surgical approach to colon cancer treatment remains a complicated and controversial problem of modern coloproctology. Current data shows better long-term outcomes after procedures performed in accordance with embryological layers and concept of complete mesocolic excision, while level of vessel ligation remains debatable. In the US and Europe D3 lymph node dissection is not routinely performed for colon cancer, while in eastern countries it is considered to be a standard. Up-to-date there is no published data from randomized trials comparing long-term outcomes of D2 and D3 dissection. Materials and methods. A literature review was performed to evaluate current data on colon cancer lymph node dissection. A design of ran-domized trial was proposed to obtain the evidence on the superiority of D3 over D2 lymph node dissection. Discussion. As evidence regarding long-term outcomes of D3 lymph node dissection is lacking the choice of lymph node dissection is made according to surgeon’s or clinic preferences. Conclusion. To objectify the preferred lymph node dissection extent randomized controlled studies are needed.

Introduction. Emergency surgical interventions for complicated colorectal cancer (CCRC) are characterized by high frequency of postoperative complications and mortality, as well as worse prognosis, compared to planned interventions. The study objective is to evaluate overall survival (OS) and relapse-free survival (RFS) in patients with CCRC who underwent emergency surgery in specialized and general surgical in-patient facilities. Materials and methods. An electronic database (registry) includes data on 1098 patients with urgent complications of colorectal cancer who underwent treatment in general surgical and specialized in-patient facilities in Smolensk in 2001–2013. Depending on the specialty of an in-patient facility, all patients were divided into 3 groups: coloproctological (n = 352), oncological (n = 69), general surgical (n = 677) in-patient facility. Results. The percentage of R1-resections in general surgical in-patient facilities was 22.3 %, examination of 12 or more lymph nodes was performed only in 11.4 % of cases. Patients with CCRC who underwent surgery in general surgical in-patient facilities didn’t receive adjuvant treatment in 55.5 % of observations. OS and RFS were higher in CCRC patient groups who underwent surgery in an oncological dispensary or department of coloproctology compared to general surgical facilities (p <0.0001). The type of surgical intervention significantly affected survival: OS and RFS were higher after multi-stage surgeries with tumor removal at the 2>nd stage compared to other types of surgical interventions (p < 0.0001). Conclusion. Analysis of OS and RFS demonstrates that oncologically adequate surgical interventions are performed in specialized in-patient facilities.

Objective. The aim of this study is to evaluate the experience with minimally invasive transanal operations and to improve treatment results in patients with early rectal cancer; to assess the accuracy of endorectal ultrasound (ERUS) in preoperative staging of rectal cancer. Materials and methods. The present clinical trial includes 38 selected patients who were underwent minimally invasive transanal procedures for early rectal cancers. 22 (58 %) patients were operated by transanal endoscopic microsurgery, 16 (42 %) were underwent transanal local excision. The study population consisted of 20 men and 18 women; average age was 64 (range 42–84) years. The main outcome measures included the operation time, the intra- and postoperative complication rate, negative microscopic margin rate, specimen fragmentation rate, oncological results (local recurrence and distant metastasis rate). Comparison of ERUS preoperative staging and pathological staging was performed to identify the accuracy of ERUS. The postoperative surveillance protocol was applied to all patients. Results. The median operative time was 56 (30–110) minutes. Postoperative complications occurred in 2 patients (5.2 %). There was no mortality. All pathological specimens were removed en block without fragmentation. Final histology revealed pTis – 10 (26 %), pT1sm1 – 9 (24 %), pT1sm2 – 12 (32 %), pT1sm3 – 5 (13 %) and pT2 – 2 (5 %) adenocarcinomas with negative resection margins (R0). The overall accuracy of ERUS for preoperative T stage was 78.9 %; for Tis was 80.0 % and for T1 – 85.0 %. All 7 patients in the pT1sm3 and pT2 groups were offered immediate radical surgery or adjuvant chemoradiotherapy. The follow-up period was from 5 to 60 (median 36) months. There was one local recurrence (2.6 %) in 6 months after local excision in a patient with pT1sm3. This patient underwent total mesorectumectomy. Conclusions. Selected patients with “low-risk” early rectal cancer and favorable features may be effectively treated with minimally invasive transanal operations without jeopardizing long-term oncological results. The lack of lymphadenectomy represents the main concern of this approach for the treatment of rectal cancer. Further follow-up is necessary. Preoperative ERUS has a good accuracy with pathologic T stage and can guide transanal procedure in early rectal cancer.

Addition of monoclonal antibodies to metastatic colorectal cancer therapy increases both the survival and treatment costs. This raises the question of economic efficacy of these agents. This review focuses on trials with pharmacoeconomical analysis of chemotherapy and targeted therapy of colorectal cancer.

The article presents a literature review on application of modern risk predictors of complications and morbidity necessary for selection of oncologically justified treatment methods for older patients with rectal cancer taking into account advancement of the disease and concomitant pathology. Use of modern scales, calculators, and questionnaires for evaluation of functional and physical status of this complex patient category by a multidisciplinary team allows to personalize therapy approach, minimize complications and morbidity after specific treatment. Application of the developed algorithms of assessment of older patients creates satisfactory conditions for their treatment based on oncological adequacy, functionality, and safety.

The problem of wound closure after abdominoperineal resection to treat oncological diseases remains unsolved. Formation of a primary suture in the perineal wound can lead to multiple postoperative complications: seroma, abscess, wound disruption with subsequent perineal hernia. Chemoradiation therapy as a standard for locally advanced rectal or anal cancer doesn’t improve results of treatment of perineal wounds and increases duration of their healing. Currently, surgeons have several reconstructive and plastic techniques to improve both direct and long-term functional treatment results. In the article, the most common methods of allo- and autotransplantation are considered, benefits and deficiencies of various techniques are evaluated and analyzed.

The clinical observation demonstrates a successful surgical treatment of a 61-year-old female patient K. (body mass index 38.4) diagnosed with locally advanced sigmoid colon cancer protruded into the bladder and uterus (сT4bN2M0) with formation of a colovesical fistula. The patient underwent surgical treatment in the form of laparoscopic resection of the sigmoid colon and supralevator anterior pelvic exenteration with formation of a Bricker conduit. Intraoperative blood loss was 200 ml. Postoperative period was smooth, with fast track rehabilitation; the patient was discharged on day 9. Considering cancer stage, the patient received XELOX as adjuvant chemotherapy for 6 months after the surgery. During a year of follow-up, no signs of disease progression were evident. The patient is fully socially rehabilitated.