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Original Articles: Adult Cardiac

Invited Commentary

Division of Cardiothoracic Surgery, University of Pittsburgh School of Medicine, 200 Lothrop St, UPMC-Presbyterian C-718, Pittsburgh, PA 15213

(Email: gleasontg@upmc.edu).

The first 20% of the full text of this article appears below.

Morita and colleagues [1] have presented a brief report on their use of transcranial Doppler ultrasound (TCD) to evaluate blood flow in the left middle cerebral artery (MCA) upon compression of the left carotid artery to help correlate adequate neurocerebral protection during aortic arch reconstructions. Specifically, they sought to determine the safety of left carotid arterial flow interruption during aortic arch reconstruction with selective antegrade cerebral perfusion delivered to the right axillary artery.

In 14% of the patients studied with TCD, the left MCA could not be visualized. Left carotid compression reduced . . . [Full Text of this Article]

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