Geneva, Sept. 21 -- International Clinical Trials Registry received information related to the study (ChiCTR2600131496) titled 'Pretreatment for propofol injection pain and its underlying mechanisms' on Sept. 3.

Study Type: Interventional study

Study Design: Parallel

Primary Sponsor: Jiangsu Cancer Hospital

Condition: Propofol injection pain (PIP)

Intervention: saline group:During the induction phase of general anesthesia, a certain amount of normal saline is injected first, followed by the injection of propofol injection. lidocaine group:During the induction phase of general anesthesia, lidocaine hydrochloride injection 0.5 mg/kg is administered first, followed by the injection of propofol. 0.05 mg/kg oxycodone group:During the i...