intracavitary opioid is administered with the anaesthetic. Opioid-free analgesia similarly
avoids opioids in the perioperative period. There are many compelling reasons to avoid
opioids in the surgical population. A number of case reports and, increasingly, prospective
studies from all over the world support its benefits, especially in the morbidly obese
population with or without sleep apnoea. A derivative technique is opioid sparing, where the …