Bacteriological and oncological safety of complete laparoscopic radical resection of colorectal cancer without incision anastomosis based on propensity-matched scores.

Introduction: Complete laparoscopic radical resection of colorectal cancer without incision anastomosis is performed by means of natural orifice specimen extraction (NOSE), which avoids a large abdominal wall incision. Although this procedure is increasingly practiced, it is still underdeveloped, one reason being that controversy still exists regarding bacteriological and oncological safety.

Aim: To demonstrate the safety of complete laparoscopic radical resection of colorectal cancer without incision anastomosis in bacteriology and oncology.

Progress in the study of nutritional status and selenium in dialysis patients.

Malnutrition is very common in patients with chronic kidney disease, especially in those on maintenance dialysis. Malnutrition is one of the major factors affecting survival and death of dialysis patients, and reducing their activity tolerance and immunity. There are numerous and interacting risk factors for malnutrition, such as reduced nutritional intake, increased energy expenditure, hormonal disorders, and inflammation.