Background: The left atrial appendage (LAA) is the primary source of cardiogenic embolism in atrial fibrillation patients. Traditional LAA closure methods have shown suboptimal clinical outcomes. In recent years, some surgeons have proposed employing a pericardial slice for suturing the LAA.
Methods: This study included patients with atrial fibrillation who underwent LAA closure during mitral valve surgery at our center between January 2019 and December 2021. There are two types of left atrial appendage closure surgical methods. The transesophageal echocardiogram performed 6 months after surgery will be used to verify the success of left atrial appendage closure. Left atrial appendage closure failure will be defined as reopening of the left atrial appendage or constant blood flow into the left atrial appendage.
Result: Among the 104 patients included (mean age: 65.0 ± 7.58 years, male: 52.50%), a total of 7 patients were found to have reopened left atrial appendage, of which 5 patients belonged to the suture closure group and 2 patients (15.6% vs 2.8%, p=0.047) belonged to the pericardial patch exclusion group.
Conclusions: The pericardial patch exclusion technique is a reliable technique to close the left atrial appendage in patients with atrial fibrillation, which can effectively reduce the possibility of reopening the left atrial appendage.