A study from Germany of patients who underwent cardiopulmonary bypass surgery and subsequently developed postoperative delirium found increased cerebral blood flow despite reduced cerebral oxygenation and bispectral index levels, similar mean arterial pressure (MAP), and lower pump flow rates compared with those who did not develop postoperative delirium.
The results, the researchers said, suggest cerebral perfusion mismatches in patients who develop delirium after cardiopulmonary