Description

Thoracic interventions (lung operations) are associated with considerable postoperative pain, whereby an open surgical procedure via a skin incision (thoracotomy) is more painful than a minimally invasive endoscopic intervention (thoracoscopy). In order to reduce pain, a regional anaesthetic is administered during the induction of anaesthesia, which reduces pain both intraoperatively and postoperatively. In thoracic surgery, thoracic epidural analgesia (PDA) and paravertebral block (PVB) are the main regional anaesthesiological measures used, although it is unclear which of the two procedures is superior in terms of efficiency and effectiveness. Particularly intraoperatively, but also to some extent postoperatively, regional anaesthesia alone is usually not sufficient for pain management. Rather, additional systemic (i.e. intravenous) analgesics (especially opioids) are administered. Therefore, the amount of these additionally administered analgesics is a measure of the efficiency of the regional anaesthesia procedure.