![]() ![]() One third of these patients die while about 5 million remain permanently disabled. Stroke is estimated to affect annually about 15 million people worldwide. In 2016, almost 18 million people died due to cardiovascular disorders, among them 85% because of myocardial infraction or stroke. Cardiovascular diseases are contemporarily considered one of the most serious health burdens, posing a first place among causes of death according to the WHO (Word Health Organization). Peripheral artery disease is estimated to affect about 20% of population beyond 60 years old and more than 50% over 85 years and its prevalence is going to increase with the phenomenon of aging of the population. Doppler assessment of cerebral flow volume may create an interesting tool for identifying patients with diminished cerebrovascular reserve and higher risk of ischemic symptoms occurrence. Volumetric assessment of CBF may play an important additional role in diagnostics of patients with carotid stenosis. The decrease of peak systolic ( p = 0.002) and end diastolic ( p = < 0.00001) velocities in ICA and peak systolic velocity in ECA ( p = 0.0017) were observed. This is a consequence of flow volume decline in ICA ( p = 0.00001) and to lesser extent ECA ( p = 0.0011). Significant differences were observed between groups: 1 and 3.4, as well as 3 and 4 ( p = 0.0295, 75 years-14.3 mL/year ( p = 0.0074). Methods: Doppler volumetric measurements of internal carotid (ICA), external carotid (ECA) and vertebral arteries (VA) were performed in 123 healthy volunteers >65 years old and compared with 56 healthy volunteers 80 years: 685.7 ± 112.3 (mL/min). The aim of the study was related to volumetric flow assessment of extracranial arteries in a healthy population >65 years old. However, there are no volumetric standards for the flow in extracranial arteries. Background: Carotid flow velocity criteria are well established, with age being a factor influencing measurements. ![]()
0 Comments
Leave a Reply. |
AuthorWrite something about yourself. No need to be fancy, just an overview. ArchivesCategories |