**8.1 General consideration for patients undergoing liver surgery**

All patients considered for robotic liver surgery should have the same workup as for patients undergoing any form of liver surgery. Patients must have the physiological reserve to tolerate general anaesthesia and a prolonged pneumoperitoneum. In our institution all patients undergo cardiopulmonary exercise testing and routine haematology, coagulation and biochemistry as part of anaesthetic workup. General contraindications to laparoscopy such as uncorrected coagulopathy and cardio-respiratory compromise should be observed. Furthermore patients should be discussed in an appropriate multidisciplinary team meeting after cross-sectional imaging and staging. In our institution all patient undergo Computed Tomography (CT) of the thorax, abdomen and pelvis. We use MRI liver and CT-PET on a patient-dependent manner. Patients also give informed consent for robotic surgery and we quote a robot to open conversion rate of 10% in our unit based upon our unit prospectively collected data.
