(Jena/UKJ) Wound pain is one of the most common sequelae of surgery. Acute pain therapy immediately after an operation aims to effectively reduce the extent and duration of the pain burden, since postoperative pain can delay the recovery process and lead to complications. An often underestimated problem is the risk of persistent pain after surgery which may lead to a chronic pain syndrome and is impairing quality of life in the long term. This association is studied by the registry projects QUIPS and PAIN-OUT at Jena University Hospital, representing the world's largest database for postoperative pain. "To provide a quality management for postoperative pain therapy, we measure and compare the complaints after numerous operations by standardized tools", says the head of the registry, Prof. Dr. Winfried Meissner.