6 B . Lohbusch et al .: J Extra Corpor Technol 2023 , 55 , 3 – 22
Figure
3 . Axial cuts of a CT scan of pelvis , showing sacral osteolysis around caudal implants on the left side .
Figure 4 . Number of reported Full-Time Equivalents ( FTE ) perfusionists ( n = 57 ).
Of the centers that employ autologous circuit priming , 33 ( 56.9 %) use it on most procedures , defined as 75 – 100 % of the time ( Table 9 ). Acute normovolemic hemodilution ( ANH ) was also reported by 7 ( 12.1 %) centers on select procedures ( Table 10 ). All 58 centers reported using at least one method for salvaging post-CPB circuit blood . Most ( 93.1 %, n = 54 ) transferred post-CPB circuit blood to an autotransfusion device , 55.2 % ( n = 30 ) reinfused volume into the patient before cannula removal , 24.1 % ( n = 14 ) used modified ultrafiltration
( MUF ), 24.1 % ( n = 14 ) collect pump contents in a bag for reinfusion through a central line , and 1.7 % ( n = 1 ) use multi-pass ultrafiltration . Anticoagulation management is reported in Table 11 . While all centers reported using activated clotting time ( ACT ) technology , 21.6 % used heparin concentration monitoring . Most programs used 480 seconds as a target for CPB support . Protamine dose was calculated using a fixed dose ( 24.1 %, n = 14 ), heparin-protamine titration ( 27.6 %, n = 16 ), and a ratio of heparin given ( 46.6 %, n = 27 ). Pump suction was terminated prior to protamine administration in 41.4 % ( n = 24 ) of centers , 31 % ( n = 18 ) terminate suction after