Ultrasound-Guided Erector Spinae Plane Block Versus Thoracic Paravertebral Block on Postoperative Analgesia After Laparoscopic Nephroureterectomy: a Study Protocol from a Non-inferiority, Double Blinded RCT
RecruitingChiCTR2000031916
Peking University First Hospitalperioperative regional anesthesia and analgesia
Start: 2020-04-15Updated: 2021-01-25