Background: Reproducible assessment of postoperative complications is essential for reliable evaluation of quality of care to enable comparison between healthcare centres and ensure transparent patient counselling. Currently, significant discrepancies exist in complication reporting and grading due to heterogeneous definitions and methodologies.
Objective: To develop a standardised and reproducible assessment of perioperative complications and overall associated morbidity, to allow for the construction of a uniform language for complication reporting and grading.