Table 2 Schedule of the major study events

Informed consent

X

Medical history

X

Physical examination

X

Demographics

X

ECG

X

X

Blood cell test^a

X

X

Liver and kidney function^b

X

Inclusion /exclusion criteria

X

Randomization

X

Intraoperative narcotic analgesics

X

Non-steroidal antiinflammatory drugs(NSAIDs)

X

Trial drug

X

Neostigmine

X

Atropine

X

Electronic intravenous analgesia pump

X

X

X

Extubation time

X

Aldrete score

X

VAS score

X

X

RASS score

X

Montreal orientation score

X

Remedial analgesic sufentanil^c

X

PONV

X

X

Pruritus

X

X

Combination medication^d

X

X

X

X

X

X

Adverse events

X

X

X

X

X

X