Circulatory disorders in the cerebellum

Circulatory disorders in the cerebellum, depending on the nature of vascular process, size and localization center have different clinical picture. In hypertension and atherosclerosis affect the vascular system of the brain and the symptoms of the cerebellum are part of the entire clinical picture of the Central nervous system. Embolism cerebellar artery and the subsequent development of a softening M is rare, as cerebellar artery depart from the main artery from an angle, which prevents the entering of the pitch. Thrombosis cerebellar arteries is mainly a consequence of atherosclerotic vascular changes, and leads to off, or lack of blood supply to specific departments M with subsequent softening. Thrombosis is rare due to the wide network of arterial anastomoses in cerebellar cortex. In the process of organizing the centers softening replaced by neuroglia either in this area is formed cystic cavity. Clinically softening M characterized cerebral phenomena resembling the initial stage of thrombosis of the great arteries of the brain, against which usually detected gradually regressing symptoms indicating that the localization of the process in the posterior cranial fossa. At the time of thrombosis one of the main cerebellar arteries usually occur dizziness, vomiting and are characteristic for the blockage each artery syndrome.
Typical of a blockage. cerebelli posterior inferior is Wallenberg syndrome - Zakharchenko, anatomical substrate which is softening in posterolateral part of the medulla oblongata. However, on the hearth develop disorders of sensitivity on the face, paralysis of the soft palate and the vocal cords, are innervated by the vagus nerve, the defeat of the sympathetic fibers (symptom of Gomera), as well as the coordination of movements of legs, cross-disorder sensitivity on the trunk and extremities, and loss of balance.
Hemorrhage and softening the cerebellum are rare (hemorrhage is much more of razmagcheniu). Hemorrhage mostly localized in the hemispheres M; their sizes range from 10 to 30 ml or more. The source of bleeding is often artery dentate nucleus (from all three cerebellar arteries). Approximately 1/3 of patients with bleeding in the cerebellum blood breaks more often in the fourth ventricle, less often in the subarachnoid space. Isolated hemorrhages in Meters develop as the result of defects of the vessels or injury in young subjects or middle-aged people. They usually occur without sudden onset of coma. In complicated with haemorrhage in the cerebellum, developing in elderly people suffering from atherosclerosis and hypertension, there are apoplexy; patients quickly fall into a coma.
Clear cerebellar symptoms are detected only at isolated small and slow-developing bleeding in M; exposes meningeal, cerebellar, approaches and vestibular stem symptoms. In some cases, cerebral stem symptoms is growing and there are indications to surgery, in other for quite a long observation period (several months) revealed a regression of the disease and the process ends with the recovery. In complicated hypertension in M. direct impact streamed blood on the vital centers of the bottom IV heart and brain stem education, rapidly increasing intracranial pressure and generalized acute violations of cerebral circulation dramatically complicate the correct formulation of topical diagnosis. When blood burst from the cerebellum in the fourth ventricle of the patient loses consciousness and falls, he often appears vomiting, heart rate slows down, identifies areflexia, atony, respiratory failure and cardiac activity, within minutes or hours death occurs. There are cases of multiple hemorrhages in the brain and M.
The treatment of complicated hemorrhages in the cerebellum is the same as in hemorrhages in large hemisphere and the trunk. Mortality in the first day exceeds 50%. With a clear clinical picture bleeding in M in the absence suddenly developed a coma shown earliest possible surgical intervention consisting in the decompression of the posterior cranial fossa liberation from the blood.