Thomas F Floyd, MD, Michael McGarvey, MD, E

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Presentation transcript:

Perioperative changes in cerebral blood flow after cardiac surgery: influence of anemia and aging Thomas F Floyd, MD, Michael McGarvey, MD, E.Andrew Ochroch, MD, Albert T Cheung, MD, John A Augoustides, MD, Joseph E Bavaria, MD, Michael A Acker, MD, Alberto Pochettino, MD, John A Detre, MD The Annals of Thoracic Surgery Volume 76, Issue 6, Pages 2037-2042 (December 2003) DOI: 10.1016/S0003-4975(03)01074-9

Fig 1 Preoperative (PRE-OP) and postoperative (POST-OP) continuous arterial spin labeling perfusion magnetic resonance images showing cerebral blood flow with color scale for subject 5, an 81-year-old man. Global cerebral blood flow has increased from baseline of 36 to 62 mL100 g−1min−1 on the fifth day after surgery. The Annals of Thoracic Surgery 2003 76, 2037-2042DOI: (10.1016/S0003-4975(03)01074-9)

Fig 2 Plot of actual change in cerebral blood flow (ΔCBF) versus ΔCBF predicted by the model: ΔCBF = −55 + 0.64(Age) + 0.53(CBFPre) −3.3(ΔHgb). R2 and p values for the whole model from analysis of variance are shown. Dotted lines are 95% confidence intervals. The Annals of Thoracic Surgery 2003 76, 2037-2042DOI: (10.1016/S0003-4975(03)01074-9)

Fig 3 Plot of change in estimated cerebral oxygen delivery (ΔCDO2Est) versus Age. Solid line indicates ΔCDO2 = 0. Dashed lines are 95% confidence intervals. The Annals of Thoracic Surgery 2003 76, 2037-2042DOI: (10.1016/S0003-4975(03)01074-9)