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Arch Neurol. 2001;58:549-550.

	Since this article does not have an abstract, we have provided the first 150 words of the full text and any section headings.

MORE AND more heart surgeries are performed each year, and while these operations often improve heart function and may even prolong life, they can cause brain injury. Strokes, encephalopathies, and cognitive and behavioral abnormalities are well-known frequent complications of heart surgery. The frequency of neurologic abnormalities depends on how thoroughly patients are evaluated. More than a third of patients have persistent cognitive abnormalities shown by testing 1 year after surgery.¹ Wityk and his Johns Hopkins colleagues² now show that modern magnetic resonance imaging (MRI) technology documents multifocal brain lesions characteristic of embolism in 10 of 14 patients with neurologic complications of cardiac surgery. Their study² provides another example of the great utility of diffusion and perfusion-weighted MRI in patients with cerebrovascular disease.

The first recognition that neurobehavioral changes following cardiac surgery were not psychiatric was made by Sid Gilman³ in 1965 when he prospectively observed a series of patients who . . . [Full Text of this Article]

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