Overview
This study aims to compare the clinical effects of ultrasound-assisted localization and real-time ultrasound-guided combined spinal-epidural anesthesia via paramedian approach in elderly patients
Description
This study aims to compare the clinical effects of ultrasound-assisted localization and real-time ultrasound-guided combined spinal-epidural anesthesia via paramedian approach in elderly patients
Eligibility
Inclusion Criteria:
- Elderly patients (≥ 60 years old);
- ASA Grade I to III.
Exclusion Criteria:
- Severe obesity (BMI>35kg/m2);
- Spinal deformity or surgical history;
- Allergic to local anesthetics;
- There are coagulation disorders;
- Communication barriers