Letter by Griebe et al Regarding Article, “Jugular Veins in Transient Global Amnesia: Innocent Bystanders”

The recent publication of Baracchini et al entitled “Jugular Veins in Transient Global Amnesia”1 in Stroke reports extra- and transcranial high-resolution venous echo-color Doppler sonography findings in patients who have had an episode of transient global amnesia (TGA). The main finding of the authors is the absence of any intracranial venous hemodynamic alteration in these patients as compared with control subjects. They suggest that future research should be aimed at the assessment of intracranial venous hemodynamics during the acute stage of TGA.The cause of TGA has been a matter of longstanding debate among researchers. Although the nature of the memory deficit occurring in TGA and the finding of a dot-like lesion on diffusion-weighted MRI2 actually link the disorder to the …