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Prediction of postoperative cerebral infarction after cardiovascular surgery is difcult. The present study investigated whether quantitative evaluation of preoperative cerebral blood ow used in the Japanese EC-IC Bypass Trial (JET) study is useful for the prediction of postoperative cerebral infarction after cardiovascular surgery. First, patients were divided into two groups based on preoperative cerebral blood ow. In an evaluation using preoperative imaging, patients with good or mildly decreased preoperative cerebral blood ow, divided into clinical stage I or II by quantitative evaluation showed no postoperative cerebral infarction. However, 24% of patients with poor cerebral blood ow who were categorized as clinical stage II, experienced postoperative cerebral infarction. The incidence rate was not statistically signicantly different when the groups were compared. Second, patients were divided into two groups based on the anatomical area of the brain affected corresponding to clinical stage II. Patients with a 10% and greater brain involvement had a signicantly higher incidence of postoperative cerebral infarction (38%) compared to others (0%, p&lt;0.01). This method may be useful for the prediction of postoperative cerebral infarction after cardiovascular surgery, but a further prospective study is needed. (This is a translation of J Jpn Coll Angiol 2017; 57: 125-133.).

annals of vascular diseases/avd

Prediction of Postoperative Cerebral Infarction after Cardiovascular Surgery Using Quantitative Measurement of Cerebral Blood Flow with Brain Single-Photon Emission Computed Tomography