Surgical left atrial appendage occlusion during cardiac surgery: A systematic review and meta-analysis

Table 3 Complications reported in the individual studies

Study	Total complications	Type of complications
	s-LAAO (%) vs No occlusion (%)	s-LAAO	No occlusion
Healey et al, 2005[7]	8 (52) vs 1 (4)	8- intraoperative LAA tears	1- LAA tear
Nagpal et al, 2009[8]	14 (63.6) vs 11 (52.3)	1- septicemia 1- myocardial infarction 2- RBC transfusion 8- temporary pacemaker 2- permanent pacemaker	1- RBC transfusion 7- temporary pacemaker 3- permanent pacemaker
Whitlock et al, 2013[9]	1 (3.8) vs 2 (25)	1- major bleeding	2- major bleeding
Zapolonski et al, 2013[4]	3 (0.3) vs 5 (0.6)	3- myocardial infarction	5- myocardial infarction
Lee et al, 2014[5]	22 (18.4) vs 22 (18.4)	9- requirement of dialysis 4- permanent pacemaker insertion 1- wound revision 8- pericardial effusion	1- low cardiac output syndrome 10- dialysis 2- permanent pacemaker insertion 1- mediastinitis 2- wound revision 6- pericardial effusion
Melduni et al, 2017[10]	32 (6.9) vs 32 (6.9)	14- pneumonia 18- acute renal failure	14- pneumonia 18- acute renal failure
Elbadawi et al, 2017[11]	17 (3.1) vs 9 (1.6)	17- pericardial effusion	7- pericardial effusion 2- hemorrhage
Elbadawi et al, 2017[12]	1030 (40.8) vs 2903 (23)	16- cardiac tamponade 68- pericardial effusion 917- hemorrhage 29- postoperative shock	19- cardiac tamponade 151- pericardial effusion 2687- hemorrhage 46- postoperative shock

RBC: Red blood cell; LAA: Left atrial appendage.