Moderate Versus Deep Hypothermic Circulatory Arrest for Elective Aortic Transverse Hemiarch Reconstruction

Results of moderate hypothermic arrest and antegrade cerebral perfusion (MHCA group) were compared with deep hypothermic arrest and retrograde cerebral perfusion (DHCA) for management of hemiarch reconstruction using single institution data.  The MHCA group was older and more often affected by atherosclerotic aneurysm.  MHCA was associated with shorter CPB times and aortic crossclamp times and with less need for transfusion.  Acute outcomes were similar between the groups.