Tracheal intubation was performed under general anesthesia
Conditions
Interventions
group P:Fixed PEEP=5cm H2O
group DP:Individual PEEP for drive-pressure guidance
Sponsors
The First Affiliated Hospital of Nanchang University
Eligibility
Sex/Gender
All
Age
18 Years to 85 Years
Inclusion criteria
Inclusion criteria: (1) 18 years old, age, and 85 years old; (2) New York Society of Cardiology (NYHA) I-; (3) Left ventricular ejection fraction (Left ventricular Ejection Fraction, LVEF)> 50%; (4) sinus rhythm, with normal electrocardiogram; (5) No chest skin damage, swelling, scar, etc.; (6) The preoperative examination results suggest that there is no coronary heart disease, cerebral embolism and other serious cardiovascular and cerebrovascular diseases; (7) The laboratory biochemical indicators of the patient were not significantly abnormal; (8) The preoperative examination results of the patients indicated that there were no patients with more serious pulmonary diseases.
Exclusion criteria
Exclusion criteria: (1) Patients with old or new coronary heart disease, myocardial infarction, or cerebral infarction; (2) Patients with severe heart disease, such as valve stenosis and incomplete closure; (3) American Society of Anesthesiologists (ASA) rating = IV; (4) Patients with congenital heart disease, such as atrial septal defect and ventricular septal defect; (5) Patients with multiple pulmonary bullae, pneumonia, chronic obstructive pulmonary disease, and pulmonary heart disease; (6) The preoperative examination results of the patient showed that in addition to the primary disease, there were cardiovascular and cerebrovascular diseases such as coronary heart disease and cerebral infarction; (7) Non sinus rhythm, such as frequent supraventricular premature beats, ventricular premature beats, duplex rhythms, triplet rhythms, etc; (8) The patient's laboratory indications are significantly abnormal or other serious diseases combined with other organs, such as hyperthyroidism, liver cirrhosis, uremia, etc; (9) The patient refused to participate in this study.
Design outcomes
Primary
| Measure | Time frame |
|---|---|
| tei index; | — |
Secondary
| Measure | Time frame |
|---|---|
| tricuspid annular plane systplic excursion ,TAPSE;Brain Natriuretic Peptide,BNP; | — |
Countries
china
Contacts
Public ContactHaixia Gong
No.1519,Dongyue Avenue,Nanchang County,Xianghu District,The First Affiliated Hospital of Nanchang University
Outcome results
None listed