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Bilateral lower sternocleidomastoid botulinum toxin injections to address refractory anterocollis

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dc.contributor.author Peng-Chen, Zhongxing
dc.contributor.author Thompson, Amanda
dc.contributor.author Rodriguez, Ramon
dc.date.accessioned 2017-05-12T12:02:42Z
dc.date.available 2017-05-12T12:02:42Z
dc.date.issued 2016
dc.identifier.citation Neurologist. 2016 Mar;21(2):30-1 es_CL
dc.identifier.uri http://dx.doi.org/10.1097/NRL.0000000000000072 es_CL
dc.identifier.uri http://hdl.handle.net/11447/1228
dc.description.abstract Anterocollis is a type of cervical dystonia characterized by simultaneous and repetitive antagonist muscles contractions, resulting in abnormal neck flexion. It was described with a frequency of 6.8% from 399 patients with diagnosis of cervical dystonia and usually coexists with torticollis and/or laterocollis, as mixed cervical dystonia patterns. Botulinum toxin is usually a practical and effective treatment for cervical dystonia. The target muscles to inject in anterocollis are usually sternocleidomastoid and scalene muscles. There is also a case report suggesting longus collis involvement. Nevertheless, the dosage of the medication in anterocollis is limited by frequent side effects of dysphagia. We described 2 cases of refractory anterocollis. They did not benefit from conventional bilateral upper portion of sternocleidomastoid muscle injections with OnabotulinumtoxinA, but notably improved their symptoms and clinical global impression after switching to injections into bilateral lower portion of sternocleidomastoid muscles, without significant side effects. es_CL
dc.format.extent 2 es_CL
dc.language.iso en_US es_CL
dc.publisher Lippincott Williams & Wilkins es_CL
dc.subject Botulinum Toxins, Type A es_CL
dc.subject Neck Muscles es_CL
dc.subject Neuromuscular Agents es_CL
dc.subject Torticollis es_CL
dc.title Bilateral lower sternocleidomastoid botulinum toxin injections to address refractory anterocollis es_CL
dc.type Artículo es_CL


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