Postoperative pain of anorectal surgery under single spinal anesthesia
Conditions
Interventions
Control group:Received 0.5% bupivacaine 2ml and 0.5ml normal saline subarachnoid injection
Fentanyl-bupivacaine group :Intrathecal injection of 0.5% bupivacaine (2 ml) plus fentanyl (25 µg / 0.5 ml)
Nalbuphine-bupivacaine group :Intrathecal injection of 0.5% bupivacaine (2 ml) plus nalbuphine (1 mg / 0.5 ml)
Sponsors
The First Affiliated Hospital of Henan University of CM
Eligibility
Sex/Gender
All
Inclusion criteria
Inclusion criteria: 1. Voluntarily participate in this study and sign the informed consent form; 2. Patients at our hospital planning to undergo anorectal surgery under spinal anesthesia; 3. Aged 18–60 years; 4. ASA class I–II; 5. BMI between 18 and 26 kg/m^2.
Exclusion criteria
Exclusion criteria: 1.Known allergy to local anesthetics or opioids. 2.Patients with hepatic or renal insufficiency. 3.Severe cardiac or neurological diseases. 4.Spinal deformity or local skin infection at the site of lumbar puncture. 5.Presence of psychiatric disorders that would preclude cooperation. 6.Hemorrhagic tendency or coagulation disorders. 7.Participation in any other drug or device clinical trial within the last 3 months.
Design outcomes
Primary
| Measure | Time frame |
|---|---|
| Visual Analogue Scale;Duration of sensory block;Duration of motor block; | — |
Countries
China
Contacts
Public ContactLiang Jingguang
The First Affiliated Hospital of Henan University of CM
Outcome results
None listed