scheduled for elective surgery under general anesthesia
Conditions
Interventions
Sponsors
Eligibility
Inclusion criteria
Inclusion criteria: (1) Age <= 7 years old. (2) Invasive arterial blood pressure. (3) Use lung protective ventilation. (4) Patients undergoing elective surgery undergoing single lung ventilation. (5) Obtain permission from parents or guardians (sign informed consent form).
Exclusion criteria
Exclusion criteria: (1) Preoperative arrhythmia. (2) Right heart dysfunction. (3) Patients with spontaneous ventilation. (4) Ventricular ejection fraction<30%. (5) Obvious respiratory system diseases. (6) Hemodynamic instability. (7) Parents or legal guardians of the child refuse.
Design outcomes
Primary
| Measure | Time frame |
|---|---|
| stroke volume;heart rate;systolic blood pressure;diastolic blood pressure; mean blood pressure;Sensitivity, SE;Specificity, SP;Positive predicative value, PPV; | — |
Secondary
| Measure | Time frame |
|---|---|
| pulse pressure variation;stroke volume variation;Cardiac index, CI; | — |
Countries
China
Contacts
Department of Anesthesiology, Shanghai Children's Medical Center