Assessment of Preoperative Anxiety in Cardiac Surgery Patients Lacking a History of Anxiety: Contributing Factors and Postoperative Morbidity.

In patients waiting to undergo cardiac surgery, both fear of the unknown and lack of information, especially related to the surgery, are crucial factors in high levels of preoperative anxiety in cardiac surgery. Coronary bypass surgery is a determining factor for preoperative anxiety. The anxiety level did not modify the postoperative course in these patients.