Type of surgery and technical aspects (Table 1/2)
168 patients (42%) underwent CABG, performed on-pump in 30% (n=120) and off-pump in 12% (n=48). 101 patients (25%) had an isolated aortic valve replacement (AVR), 50 patients (13%) had combined surgery (AVR + CABG), and 56 patients (14%) had some form of mitral valve surgery (MVR). The remaining 25 patients (6%; Others) had surgery on the ascending aorta. Cold blood cardioplegia was predominantly used for myocardial protection (68%; n=271). Surgical parameters included blood transfusions in 4.5% (n=18), intra-pericardial defibrillations in 8% (n=31), septal myectomies in 18% (n=70, all in combination with AVR / AVR + CABG), Maze procedures in 1% (n=4), and left atrial appendage closure (LAAC) in 7% (n=28) of all patients.