Objective: to analyze literature data on the effectiveness of preoperative mechanical bowel preparation (MBP), and on the basis of our own data to perform a comparative analysis of immediate MBP results in patients operated on right-sided colon cancer.Materials and methods. We reviewed literature data relevant to the use of MBP and performed a retrospective analysis of the immediate results of surgical interventions on right-sided colon cancer in 349 patients having undergone MBP with polyethylene glycol (PEG) compounds (n = 186) and without the use of PEG (n = 163).Results. The incidence rates of complications in the patients of groups I and II were 6.7 % and 9.8 % (P>0.05), anastomotic leak rates were 0.6 % and 1.6 % (P>0.05), postoperative death rates — 1.2 % and 1.6 % (P>0.05), the average durations of the postoperative period were 14.9 and 12.1 days, respectively (P>0.05).Conclusion. The use of preoperative MBP with PEG compounds does not result in enhancing the immediate results of the surgical treatment of patients with right-sided cancer.

The article presents modern approaches to the diagnosis of pancreatic cancer, discusses the feasibility of resectable tumor biopsy, and provides clinical cases illustrating the negative aspects associated with biopsy.