[Current trends of postoperative analgesia].

After being neglected for a long time, postoperative analgesia is developing considerably at present. A wide range of resources, including antipyretics, nonsteroid anti-inflammatories, agonist-antagonists and morphinic agents allow to great variations of sensibility between individuals. New techniques such as patient-controlled analgesia and spinal morphine therapy are becoming essential for intense pain. New concepts are appearing, such as treatment units for acute pain, while others are gaining new momentum, like the prophylaxis of postoperative pain.