case_images: PMC11785884_01
case_images: Mean arterial pressure and cerebral regional oxygen saturation during cardiopulmonary bypass. Approximately 120 min after the initiation of cardiopulmonary bypass (CPB), mean arterial pressure (MAP) and bilateral cerebral regional oxygen saturation (rSO2) temporarily decreased
case_images: 40981_2025_771_Fig1_HTML.jpg
case_images: PMC11785884_01_40981_2025_771_Fig1_HTML.jpg
case_images: Fig1
case_images: The mean arterial pressure (MAP) was maintained between 60 and 80 mm Hg. The bilateral forehead rSO2 values ranged from 60 to 80% (Fig. 1).
case_images: Mean arterial pressure and cerebral regional oxygen saturation between 100 and 150 min during cardiopulmonary bypass. Mean arterial pressure (MAP) abruptly decreased to 12 mmHg and returned to baseline at 117 min after the initiation of cardiopulmonary bypass (CPB). Bilateral cerebral regional oxygen saturation (rSO2) gradually decreased to 46% over 8 min and then returned to the baseline in the subsequent 2 min
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case_images: PMC11785884_01_40981_2025_771_Fig2_HTML.jpg
case_images: Fig2
case_images: At 117 min, while the mechanical valve was being sutured to the annulus, the blood pressure waveform of the left radial artery abruptly disappeared, and the MAP decreased to 12 mm Hg and then returned to baseline within 30 s (Fig. 2). Around the same time, the rSO2 values measured bilaterally at the forehead gradually decreased to 46% over 8 min, before returning to baseline within the subsequent 2 min (Fig. 2).
case_images: Intraoperative transesophageal Doppler echocardiography showing acute aortic dissection in the descending aorta (left), left subclavian artery (middle), and left common carotid artery (right)
case_images: 40981_2025_771_Fig3_HTML.jpg
case_images: PMC11785884_01_40981_2025_771_Fig3_HTML.jpg
case_images: Fig3
case_images: AAD extending from the descending aorta to the left common carotid artery (Fig. 3); the ascending aorta could not be examined. Although the ascending aorta distal to the cross-clamp site could not be visualized on the video monitor, carotid ultrasound revealed that the AAD had extended to the right common carotid artery.