None listed
Conditions
Interventions
Sponsors
Eligibility
Inclusion criteria
Inclusion criteria: 1. All patients have ASA grades I-II; 2. Aged 18 to 65 years; 3. Patients who plan to undergo tympanoplasty under elective general anesthesia; 4. Informed and agreed to the research and signed the consent form.
Exclusion criteria
Exclusion criteria: 1. Those who are allergic to experimental drugs; 2. Those with severe risk of elevated blood pressure or intracranial pressure; 3. Hypertension (blood pressure at rest>170/100); 4. Hyperthyroidism; 5. Serious insufficiency of important organs; 6. Patients with obvious ischemic heart disease; 7. Sinus tachycardia; 8. Abuse of alcohol or analgesic, sedative, antidepressant drugs.
Design outcomes
Primary
| Measure | Time frame |
|---|---|
| the incidence of pain on propofol injection; | — |
Secondary
| Measure | Time frame |
|---|---|
| the severity of propofol-induced injection pain;the vital signs within 5 minutes after induction;cumulative dosages of vasoactive drugs within 5 minutes after induction;the adverse events related to drugs; | — |
Countries
China