[Are the measures to ensure patient safety in surgery evidence-based?]

Errors occurring in surgical procedures often have serious consequences for the patients. For this reason various measures have been designed over the past few years to ensure a greater level of patient safety in surgery. One such measure is the implementation of the WHO safety checklist in German hospitals. The benefits of this checklist on postoperative complications have been substantiated by evidence from EbM level II studies and meta-analyses. The application of further tools such as the systematic rating of hospitals in terms of defined operative procedures would appear theoretically rational, but has not been demonstrated by studies with a higher level of evidence.