This study tested whether avoiding opioids during weight-loss surgery leads to less pain and fewer side effects like nausea. Sixty adults having laparoscopic bariatric surgery were randomly assigned to receive either opioid-free anesthesia (using other drugs) or standard opioid-b…
Phase: NA • Sponsor: Hospital dos Lusíadas • Aim: Symptom relief
Last updated Jun 27, 2026 09:07 UTC