![]() ![]() While most commonly due to PICA occlusion, other arteries, such as the vertebral artery or branches of PICA, can be involved as well. WS is most commonly due to an occlusion of the PICA, resulting in ischemia and infarction of the lateral medulla. ![]() The blood flow and the cross-sectional anatomy of the medulla are illustrated in figures 1 and 2.įigure 2: cross-sectional anatomy of medulla including all nuclei and tracts Etiology The anterior spinal artery has its own median medullary branch, which perfuses the anteromedial region of the medulla. The anterior spinal artery provides blood flow to the remainder of the medulla. The medial medullary branch of PICA perfuses the anterior lateral medulla, and the lateral medullary branch perfuses the lateral medulla. The dorsal medullary branch of PICA perfuses the posterior medulla. The vertebral artery supplies the posterior inferior cerebellar artery (PICA), which has 3 main branches: the dorsal, medial, and lateral medullary branches. The primary blood supply to the medulla comes from the vertebral arteries. These regions are divided based on their differing arterial supply. The medulla can be divided into 4 regions: anteromedial, anterolateral, lateral, and posterior ( Figure 1). This monograph highlights the neuro-ophthalmic presentations for the WS. WS is typically due to ischemia from a vertebral artery or posterior inferior cerebellar artery infarction. ![]() Wallenberg syndrome (WS) is a neurological disorder that is due to damage to the lateral portion of the medulla oblongata (i.e., the lateral medullary syndrome). We welcome your feedback on our information resources. Last reviewed: December 2020 Next review date: December 2023 Version 2.0 Sources used to create this information are available by contacting Beat. Physical illness as a result of eating harmful substances.Eating substances that aren’t supposed to be eaten.Craving to consume substances that aren’t supposed to be eaten.It may be necessary to contact the emergency services. If you or someone you know has eaten something that isn’t supposed to be eaten, you should seek medical help immediately. Some of the items that people may feel an urge to eat because of pica can be extremely harmful. Obsessive-compulsive disorder and related disorders such as trichotillomania (hair-pulling) and excoriation disorder (skin-picking).Nonetheless, it may be more likely to occur alongside: The percentage of people who have it is not yet known, as different researchers may use different definitions of pica, leading to some confusion. In some cases, people with pica have been found to be deficient in certain minerals or vitamins, but this is often not the case. The reasons that people develop pica are not yet clear, although several scientists have linked it to the nervous system, and have understood it as a learned behaviour or coping mechanism. If you’re concerned about yourself or someone else, you should visit your doctor as quickly as possible so that they can refer you for appropriate treatment. However, some non-food items that they consume can be very dangerous, especially if eaten in large quantities. People with pica don’t usually avoid regular food, meaning they may still be getting all the nutrients they need. In cases where it is this other illness that has caused the behaviour related to pica, a separate diagnosis of pica would be made only if it is serious enough to need clinical attention beyond that already being provided for the other illness. It can occur alongside other illnesses, including other eating disorders. Pica affects people of all genders and ages, though it is more likely to first appear among children. PICA SYNDROME AREAS CRACKEDOften, pica is not revealed until medical consequences occur, such as metal toxicity, cracked teeth, or infections. For a diagnosis of pica, the behaviour must be present for at least one month, not part of a cultural practice, and developmentally inappropriate – generally, it’s not diagnosed in children under the age of two, as it is common for babies to “mouth” objects, which can lead to them accidentally eating substances that aren’t meant to be eaten. Pica is a feeding disorder in which someone eats non-food substances that have no nutritional value, such as paper, soap, paint, chalk, or ice. ![]()
0 Comments
Leave a Reply. |
AuthorWrite something about yourself. No need to be fancy, just an overview. ArchivesCategories |