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. Author manuscript; available in PMC: 2018 Nov 1.
Published in final edited form as: J Thorac Cardiovasc Surg. 2017 Jul 24;154(5):1590–1598.e2. doi: 10.1016/j.jtcvs.2017.04.091

Table 2.

Optimal mean arterial blood pressure (MAP), the MAP at the lower limit of autoregulation (LLA) and the upper limit of autoregulation (ULA) for the entire cohort and by study. The optimal MAP was defined as the MAP with the lowest mean velocity index (see text). Data are listed as mean±SD or number (%) of patients.

Entire Cohort
N=617		 Study 117
N=183		 Study 224
N=105		 Study 3
N=326		 P-Value
Optimal MAP (mean±SD, mmHg) 78 ± 11 74 ± 12 75 ± 10 80 ± 11 <0.001
LLA (mmHg) 65 ± 12 63 ± 11 66 ± 13 66 ± 12 0.024
ULA (mmHg) 84 ± 11 81 ± 10 82 ± 9 86 ± 12 0.002
Patients whose crossed LLA 434 (71%) 141 (77%) 70 (67%) 223 (68%) 0.074
Patients whose crossed ULA 323 (52%) 102 (56%) 58 (55%) 163 (50%) 0.387