alternative plan

The relationship between anesthetic medication and postoperative major cardiac and cerebral complications will be studied using logistic regression model.

The study group try to find out if there is a connection between the use of different anesthetic methods with different narcotic drugs and postoperative major cardiac and cerebral complications.

Inclusion Criteria:

• non-cardiac surgery, with age> = 18 years old, ASA grade I-IV, under general anesthesia

Exclusion Criteria:

• non-general anesthesia, without the use of target-controlled infusion of remifentanil or sufentanil, absence of intraoperative or perioperative information.

patients for non-cardiac surgery under general anesthesia