Chronic, ischemic microvascular disease

I am a 74 year old male that recently fell and suffered a wound to my head that required 16 stitches to close.  Treatment in the emergency center in our local hospital included a CT scan of my head and the report included the following statement; "There are changes within the periventricular deep white matter suggesting chronic, ischemic microvascular disease".  In laymans terms, what does this mean and are there precautions that should be taken to prevent further progression of the disease?

[Pat1170]

Did you get any answers or comments to your posting about chronic micro vascular disease?  my husband's MRI of brain showed this and he is falling a lot...speech slurred.  I can't find anything much on it online.  Thanks...