The comparison of postoperative complications revealed that the incidence of hypotension ( 21/57 , 36.8 % versus 8/63 , 12.7 % ; P = 0.002 ) , bradycardia ( 9/57 , 15.8 % versus 2/63 , 3.2 % ; P = 0.017 ) , atelectasis ( 1/57 , 1.8 % versus 7/63 , 11.1 % ; P = 0.04 ) , and the need for intensive care unit ( ICU ) treatment ( 0/57 , 0 % versus 5/63 , 7.9 % ; P = 0.03 ) were lower in the TEA group in comparison to the LEA group .