Analysis of Risk Factors and Establishment of Early Warning Model for Pulmonary Complications

Analysis of Risk Factors and Establishment and Application of a Clinical Early Warning Model for Postoperative Pulmonary Complications in Patients Undergoing Cardiac Surgery

The purpose of this study is to collect perioperative diagnosis and treatment information for cardiac surgery patients, collect blood samples for laboratory testing when necessary, and analyze the data to clarify the risk factors of pulmonary complications in patients undergoing cardiac surgery during the perioperative period. On this basis, a clinical early warning model for pulmonary complications after cardiac surgery will be developed to reduce the risk of pulmonary complications and even death in clinical practice.

Inclusion Criteria:

• Adult patients aged 18 years or older;
• Elective cardiac surgery under general anesthesia

Exclusion Criteria:

• Patients and their family members refused to be enrolled;
• Patients unable to communicate due to language barriers such as dementia;
• Patients admitted to ICU 24h before surgery;
• Estimated duration of surgery less than 2 hours;
• Patients died or discharged within 24 hours after surgery