anesthesia
Conditions
Interventions
Sponsors
Eligibility
Inclusion criteria
Inclusion criteria: 1. patients of great saphenous vein trunk closed laser surgery; 2. age: 18-60 years; 3. ASA??: I-II; 4. BMI: 18-24kg/m2.
Exclusion criteria
Exclusion criteria: 1. esmolol contraindication: asthma history; Sinus bradycardia(HR<60bpm); degree II or III atrioventricular block; severe COPD; refractory cardiac insufficiency;cardiogenic shock; allergic with esmolol; 2. history of hypertension, diabetes, metabolic disease; 3. liver and kidney dysfunction; 4. severe hemodynamic fluctuations needing drug.
Design outcomes
Primary
| Measure | Time frame |
|---|---|
| requirement of sevoflurane; | — |
Secondary
| Measure | Time frame |
|---|---|
| HR/BP/PI/NI each point in time;recovery time postoperative;the quality of VAS/PONV/intraoperative awareness/POCD; | — |
Countries
China