Posterior Cerebral Artery Stroke Syndromes ｜ PCA Stroke Syndromes

"...stroke syndromes are collections of signs and symptoms resulting from Strokes in different regions of the brain or central nervous system in this video we will cover the stroke syndromes associated with Strokes in the territory of the posterior cerebral arteries they Supply the occipital lobe the inferior surface of the temporal lobes as well as some deeper structures such as the thalamus and the midbrain of the brainstem the posterior cerebral arteries arise from the distal end of the basilar artery which itself is formed from the vertebral arteries there is a connection with the anterior circulation via the posterior communicating artery our first syndrome is Alexia without a graph here which means the inability to read without the loss of writing here the affected regions are thus plenum of the corpus callosum and typically left occipital lobe the combination of these two areas being affected results in a pure word blindness meaning that the patient is able to write but is not able to read due to the involvement of the left occipital lobe contralateral homonymous hemianopia may also be present next is a similar syndrome the unilateral occipital stroke syndrome here as the name suggests the occipital lobe on one side side is affected and part of the inferior temporal lobe may also be involved in some instances the primary finding here is a contralateral homonymous hemianopia which may often be the only neurological deficit found we may see macular sparing due to the collateral blood supply to the macular region of the cortex in some instances and no Mia maybe present which is the inability to name in this case it's the inability T2 name colors and objects thirdly we have Anton syndrome also known as cortical blindness this occurs where there is an involvement of both occipital lobes either due to involvement of both posterior cerebral arteries or due to a lesion at the level of the distal basilar artery as a result there is visual loss however an interesting feature is that these patients may not be aware of the vision loss or we take this few our valued loyal listener about the best health and fitness podcast shows from the Nez pod Studios join us as we give you the best of the best health and wellness updates you can rely on for the treatment of chronic health problems classic functional medicine Back to Basics health tips and special updates..." Learn more about your ad choices. Visit megaphone.fm/adchoices