From the results of the present study, it is evident that there was a significant PICA emergence from the superior part of the vertebral artery and that the double origin of non-hypoplastic trunks was also found in some patients the latter is associated with a greater chance of aneurysms and other additional complications. The clinical implication of this knowledge and consensus is obtaining the best surgical strategies for clipping aneurysms and, in addition, the best choices for occlusion of the vessel affected if the territory of the main vessel has an adequate collateral circulation.
A prompt diagnosis is vital, she and her co-authors wrote. But when such a symptom occurs suddenly and seems out of the ordinary, emergency medical attention should be sought without delay, Dr. The results obtained in the present study indicated the great importance of the studies and reviews on the different topographies of PICA these studies and reviews expand the knowledge and consensus on the characteristics and implications of PICA?s variations. Aneurysms of the posterior inferior cerebellar artery (PICA) are rare. Dizziness, headache and neck pain are extremely common and most often not related to a vertebral artery dissection. The double origins of non-hypoplastic PICAs were found in 17% (n = 4) of patients. Moreover, variations such as hypoplastic arteries, missing trunks on one side and double or triple trunks, different emergence sites, significant PICA emergence from the superior part of the vertebral artery (59% of the trunks), and asymmetries between the right and left sides were recorded. It has a variable origin, course and supply, with up to 40 of specimens not having an identifiable standard AICA. Some striking variations were found, such as the absence of the left vertebral artery in one of the brains and the emergence of any PICA in another two brains studied. The anterior inferior cerebellar artery (AICA) is one of three vessels that provides arterial blood supply to the cerebellum. The present study analyzed the different variations of the PICA?s first two segments, the anterior medullary and lateral medullary segments, regarding the number of trunks, their emergency site, and the presence or absence of hypoplasia of this artery, through microsurgical dissection of 23 fresh cadaver brains. Sometimes the condition can heal itself, but it also can cause life-threatening complications. It can occur spontaneously or after a neck injury. To study the operative approaches for posterior inferior cerebellar artery (PICA) aneurysms or understanding the different pathologies that can affect this artery, and to present detailed knowledge of this artery?s anatomy. A carotid artery dissection is a tear or separation in the layers of the carotid artery in your neck.
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