If this is not your name, click here. Other Ophthalmic Surgery Organ Transplantation Orthopaedics Other Osteoarthritis Osteoporosis Otitis Otorhino. Brain lesions occur when blood is cut off to part of the brain during stroke and the brain tissue dies. In lacunar strokes, which were studied extensively by the researchers, blood clots occur in the ends of small arteries, called arterioles, that penetrate deep into the brain. In theory, blood pressure should be lower at night when people are resting.
People normally have a dip in their blood pressure during the night.
Nondippers, those who don't have a nocturnal dip or only have a minimal dip, have been shown in other studies to have more severe cerebrovascular disease, the researchers explained. Although multiple factors contribute to the development of new lesions, we can make a difference in the recurrence of stroke by controlling blood pressure more carefully. Lacunar stroke is often referred to as silent brain ischemia because it often does not exhibit symptoms and is sometimes not seen via traditional brain imaging. With the MRI, neurologists and neurosurgeons can get a better look at the tiny brain vessels that are blocked in lacunar strokes. Most were based on casual blood pressure readings.