Table 3.
Physiologic Data During Cardiopulmonary Bypass and the First 3 Hours in the Intensive Care Unit for the Entire Cohort of Patients With and Without Delirium
No Delirium | Delirium | p Value | ||
---|---|---|---|---|
| ||||
n = 52 | n = 47 | |||
CPB | MAP (mmHg) | 71 ± 7.3 | 70 ± 7.3 | 0.4 |
CFx | 0.34 ± 0.19 | 0.34 ± 0.16 | 0.93 | |
Optimal MAP (mmHg) | 70 ± 8.4 | 70 ± 10.7 | 0.96 | |
Hb (g/dL) | 9.4 ± 1.1 | 9.3 ± 1.3 | 0.46 | |
pH | 7.39 ± 0.03 | 7.38 ± 0.03 | 0.48 | |
PO2 (mmHg) | 249 ± 45.6 | 251 ± 27.4 | 0.8 | |
PCO2 (mmHg) | 41.1 ± 2.0 | 41.1 ± 1.8 | 0.96 | |
ICU | MAP (mmHg) | 75 ± 8.5 | 77 ± 8.6 | 0.36 |
CFx | 0.09 ± 0.12 | 0.14 ± 0.08 | 0.038 | |
Optimal MAP (mmHg) | 75 ± 6.6 | 76 ± 10.4 | 0.45 | |
Hb (g/dL) | 10.7 ± 1.3 | 10.4 ± 1.3 | 0.21 | |
pH | 7.35 ± 0.04 | 7.35 ± 0.05 | 0.81 | |
PO2 (mmHg) | 128 ± 31.9 | 122 ± 43.3 | 0.41 | |
PCO2 (mmHg) | 39 ± 5.0 | 39 ± 3.8 | 0.78 |
NOTE. The listed p values are for comparisons between patients with and without delirium. Cerebral flow index (CFx) is the Pearson correlation constant between cerebral blood flow index and mean arterial pressure averaged for the respective perioperative periods. Data are listed as mean ± SD.
Abbreviations: CPB, cardiopulmonary bypass; MAP, mean arterial pressure; Hb, hemoglobin; ICU, intensive care unit.