Spinal anesthesia/lower extremity surgery
Conditions
Interventions
A group:Ropivacaine dose 5 mg
B group:Ropivacaine dose 10 mg
C group:Ropivacaine dose 15 mg
D group:Ropivacaine dose 20 mg
Sponsors
Affiliated Hospital of Yan'an University
Eligibility
Sex/Gender
All
Age
18 Years to 65 Years
Inclusion criteria
Inclusion criteria: 1. The age is 18 -65 years old, regardless of gender, with ASA grade I-III and BMI of 18.5-25.0 kg/m2; 2. No contraindications for spinal anesthesia; 3. No history of local anesthetic allergy; 4. No serious systemic diseases; 5. Sign the informed consent form.
Exclusion criteria
Exclusion criteria: 1. Postoperative case follow-up data lost or incomplete; 2. Patients who changed the operation method or anesthesia method during the operation; 3. The operation time lasts more than 2 hours.
Design outcomes
Primary
| Measure | Time frame |
|---|---|
| duration of anesthesia; | — |
Secondary
| Measure | Time frame |
|---|---|
| Onset time of anesthesia;duration of sensory and motor block;intraoperative muscle laxity score;The time for the muscle strength of the operative side to decrease from V to different levels after anesthesia;Surgical side limb block rate;The plane of highest sensation and pain disappearance;tourniquet reaction;BP, HR, number of vasoactive drugs used;muscle recovery time;First time out of bed;The time of the first anal exhaust after surgery;The time of the first water and food after the operation;Postoperative urinary catheter indwelling time;Incidence of nausea and vomiting within 2 days after surgery;Intraoperative urine volume and infusion volume;Operation time; | — |
Countries
China
Contacts
Public ContactZhang Erfei
Affiliated Hospital of Yan'an University
Outcome results
None listed