Botulinum toxin (btx) is one of the most potent biological toxins known. Surgery is also used when other treatments have failed to work or if you are young and don’t want long-term repeated injections. The patient has been followed by neurology and has been doing well with the current treatment in the six months following the diagnosis. Hemifacial spasm (hfs) is characterized by intermittent, involuntary twitching of the muscles in one side of the face, which can last from a few seconds to several minutes. The hyperactive facial nerve nucleus then sends signals to the face, which cause the abnormal facial movements of hfs. The patient had been clinically asymptomatic until she started developing intermittent ipsilateral hemifacial spasms occurring spontaneously and involving all portions of the left facial musculature, which prompted her to return for evaluation. 2015: showing new extension into the left stylomastoid foramen not present on the examination of 2007.
Intermittent facial spasm. None of the malignant neoplastic foci showed invasion into adjacent fibroadipose tissue and nerves. The movements are finer, more continuous and more frequently start somewhere in the face other than around the eye. Hemifacial spasm generally begins with a twitching eyelid muscle that can lead to a forced closure of the eye. Its prevalence has been estimated at 11 cases per 100 000 individuals. At the moment, doctors believe the main cause is pressure on the facial nerve from a structure or abnormality within the brain. More temporary twitches of the muscles of the face are not hemifacial spasm.
5 per 100 000 and men at 7. The most common cause of hfs is irritation of the facial nerve from compression by an adjacent artery or vein.