Varicose veins of unilateral lower extremity
Conditions
Interventions
time group:After the same dose of ropivacaine was injected into the subarachnoid space, the patient was placed in the lateral decubitus position with the contralateral limb facing downward for differe
dose group:After injecting different doses of ropivacaine into the subarachnoid space, the patient was placed in a lateral decubitus position with the contralateral limb facing downward and fixed for
Sponsors
Department of Anesthesiology, Affiliated Hospital of North Sichuan Medical College
Eligibility
Sex/Gender
All
Age
18 Years to 65 Years
Inclusion criteria
Inclusion criteria: ?ASA I~?;? Patients undergoing unilateral varicose vein surgery: ?BMI 18.5- 23.9 kg/m2;? No contraindication to spinal anesthesia; ? Those who signed informed consent form.
Exclusion criteria
Exclusion criteria: ? Patients with previous history of spinal surgery, spinal deformity and severe back pain;? Patients with drug allergy such as ropivacaine;? Patients with contraindications to spinal anesthesia;? Patients with cardiac and renal insufficiency; ? Patients with lower limb motor and hearing dysfunction
Design outcomes
Primary
| Measure | Time frame |
|---|---|
| ED50 and ED95 of unilateral spinal anesthesia with heavy specific gravity ropivacaine to achieve motor block only in the affected side; | — |
Secondary
| Measure | Time frame |
|---|---|
| Motor Tissue Score (Modified Bromage Score);sensory block level;hemodynamics of; | — |
Countries
China
Contacts
Public ContactWang Fangjun
Department of Anesthesiology, Affiliated Hospital of North Sichuan Medical College
Outcome results
None listed