Evaluation of the Introduction of a Colorectal Bundle in Left Sided Colorectal Resections

"1. Preoperative optimization of the nutritional status: Perform nutritional risk screening (NRS), measure albumin or prealbumin preoperatively and initiate nutritional support~2. Preoperative showering with an antiseptic agent~3. Administer preoperative antibiotic prophylaxis~4. Hair removal in the operative field with clippers~5. Peri-, intra-, and postoperative warming to maintain body temperature~6. Peri- and intraoperative glucose control~7. Usage of a wound protection device~8. Change of gloves and instruments after anastomosis~9. Anastomosis only with experienced senior surgeon present in theatre for any elective and emergency procedures"