Carbon Footprint Assessment for Robotic, Laparoscopic and Open Colorectal Operations to Enhance Environmental Sustainability

The goal of this study is to conduct a life cycle assessment of robotic, laparoscopic and open colorectal procedures and compare their climate impact. Further the investigators want to identify major targets for possible reduction in the CO2 footprint in colorectal procedures. The main questions are: Researchers will identify used and prepared materials and instruments for the individual procedures and weigh them individually. SimaPro databases will help calculate the carbon footprints for the used instruments. Additionally, energy waste will be measured and carbon footprint of anesthesia will be estimated with previous existing data from other studies.