Hemodynamic changes in elderly
Conditions
Interventions
Sponsors
Eligibility
Inclusion criteria
Inclusion criteria: 1. Age >= 60 years old; 2. Planned elective surgery under general anesthesia; 3. American Society of Anesthesiologists rating I-II; 4. New York Heart Association Heart Function Score Level I; 5. There are no contraindications related to the medication used in this study; 6. Sign informed consent form
Exclusion criteria
Exclusion criteria: 1. Merge severe cardiovascular diseases (acute heart failure, myocardial infarction, etc.); 2. Patients at serious risk of elevated blood pressure or intracranial pressure; 3. Combined neurological disorders (such as preeclampsia and eclampsia) or a history of severe mental disorders; 4. History of liver and kidney dysfunction; 5. Patients who are allergic to the drugs used in the research institute; 6. Participants in other clinical trials in the past 3 months
Design outcomes
Primary
| Measure | Time frame |
|---|---|
| snuff-box resistive index, SBRI;blood pressure;Heart Rate;SpO2; | — |
Secondary
| Measure | Time frame |
|---|---|
| The incidence of adverse reactions; | — |
Countries
China
Contacts
Central Theater General Hospital of the Chinese People's Liberation Army