Details on missing data (High pressure, low pressure, conventional harvest, pedicled harvest): *(1,2,1,2), ^(10,14,11,13).

BMI = body mass index; CCS = Canadian Cardiovascular Society; IHD = ischaemic heart disease; IQR = interquartile range; LV = left ventricular; NHYA = New York Heart Association; SD = standard deviation

Table 3 Intraoperative characteristics