Augmentation index is related to white matter lesions.

The augmentation index (AIx) is a measure of pulse wave reflection from peripheral muscular conduit arteries, and is assumed to increase with stiffened arteries. A white matter lesion (WML) is generally regarded as a chronic ischemic lesion, which is associated with cerebral small-vessel arteriosclerosis. The aim of this study is to elucidate the effect of pulse wave reflection on the brain.

[Role of coil embolization and arterial injection in elderly subarachnoid hemorrhage patients: preliminary report].

With the recent advanced aging seen in society, the number of elderly patients with aneurismal subarachnoid hemorrhage (SAH) is increasing. We focused on current management of SAH in patients who were over 75 years old. From January 1st, 2004 to the end of June, 2007, we had treated 170 SAH patients including 39 who were over 75 years old.