elderly patients undergoing elective surgery
Conditions
Interventions
Sponsors
Eligibility
Inclusion criteria
Inclusion criteria: The study participants ranged in age from 65 to 90 yr, with ASA physical status 2 or 3, and BMI<40kg/m2.Inclusion criteria included normal heart, pulmonary, liver, and kidney function on preoperative examination; no history of endocrine or central nervous system disease or drug allergies; absence of severe anemia, malnutrition, hypoproteinemia, and water-electrolyte and acid-base imbalance disorders. All patients fasted for 12 hours and were advised not to drink fluids for 4 hours before surgery.
Exclusion criteria
Exclusion criteria: patients don't meet the inclusion criteria
Design outcomes
Primary
| Measure | Time frame |
|---|---|
| HF;LF;LF/H; | — |
Secondary
| Measure | Time frame |
|---|---|
| SAS;VAS; | — |
Countries
China