Neurogenic stunned myocardium in Guillain-Barré syndrome.

Neurogenic stunned myocardium (NSM), a syndrome of reversible left ventricular dysfunction best described after subarachnoid hemorrhage, has not been associated with peripheral neuropathy. We describe a woman with Guillain-Barre syndrome in whom a syndrome compatible with NSM developed in the setting of a physiologically documented increase in sympathetic cardiovascular tone. This case supports the presumed unifying role of excessive sympathetic nervous system activation in the pathogenesis of NSM.