cardiopulmonary bypass surgery
Conditions
Interventions
Sponsors
Eligibility
Inclusion criteria
Inclusion criteria: Select three hundred and ninety-three patients undergoing elective cardiopulmonary bypass cardiac surgery, ASA II or III, cardiac function I - III, age of twenty to sixty years old, conscious, with normal liver and kidney function.
Exclusion criteria
Exclusion criteria: Serious internal environment disorder, asthma, chronic obstructive pulmonary disease, again heart surgery, hearing impairment, mental disorder, cerebral infarction sequelae period.
Design outcomes
Secondary
| Measure | Time frame |
|---|---|
| complications after surgery;mixed venous oxygen saturation (SvO2); | — |
Primary
| Measure | Time frame |
|---|---|
| length of hospital day after surgery;ventricular end diastolic capacity;SVV(pulse oxygen saturation variation);CO (cardiac output); | — |
Countries
China