Study design and ethical approval
This randomized, blinded, controlled trial was conducted at First People’s Hospital of Yichang (The People’s Hospital of China Three Gorges University), approved by its Ethics Committee on December 12, 2022…
Optimal analgesia after laparoscopic total hysterectomy with pre-pneumoperitoneum phrenic nerve block using different ropivacaine concentrations: randomized controlled trial | BMC Anesthesiology
