Single-center RCT: Postoperative analgesic efficacy and safety of ropivacaine plus diprospan for preemptive scalp infiltration in patients undergoing craniotomy. 25 Mar, 2022 | 08:42h | UTC Postoperative Analgesic Efficacy and Safety of Ropivacaine Plus Diprospan for Preemptive Scalp Infiltration in Patients Undergoing Craniotomy: A Prospective Randomized Controlled Trial – Anesthesia & Analgesia