Abstract
With great interest we read the article by Ito et al1 on the use of near-infrared spectroscopy (NIRS) in combination with external jugular vein pressure for the early detection of unintentional superior vena cava (SVC) obstruction during resection of a tumor infiltrating near the SVC. The detection of cerebral ischemia in the clinical setting of an ascending aortic aneurysm and coronary artery disease has not been reported previously. We share our experience of a case of an ascending aortic aneurysm with coronary artery disease in which cerebral oximetry using NIRS was useful in the detection of a cerebral ischemia from an aneurysmal obstruction of the SVC during left internal mammary artery (LIMA) harvesting.
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