Tab. III.

Adverse events in the group of 34 patients undergoing PLAAO

No.	Complication	Cause of complication	Management	Conclusions
1	Cardiac tamponade	Due to the unfavorable anatomy of the appendage, the hooks stabilizing the lobe of the occluder damaged the adventitia of the pulmonary artery; tamponade occurred on the 2nd postoperative day	Sternotomy, cardiac decompression, LA appendage control	Patient discharged from the department on the 7th postoperative day. Paying attention to anatomical features of the region around the LA appendage
2	Bleeding from the femoral artery	Accidental puncture of the artery during the procedure, significant susceptibility to bleeding after antiplatelet agents	Surgical intervention within the groin, bleeding site repair, suturing the wound	Femoral vein puncture under ultrasound control; in the case of arterial puncture – Angio-Seal implantation
3	Bleeding from the femoral vein	Accidental puncture of a collateral branch of the femoral vein. Bleeding from the femoral vein	Surgical intervention within the groin, bleeding site repair, suturing the wound	Femoral vein puncture under ultrasound control. Compression dressing
4	Bleeding from the femoral vein	Puncture of the lateral wall of the femoral vein. Bleeding from the femoral vein	Surgical intervention within the groin, bleeding site repair, suturing the wound	Femoral vein puncture under ultrasound control. Compression dressing