Lege Artis Medicinae

[Beyond the wrinkles: botulinum toxin for the treatment of focal dystonia]

KOVÁCS Tibor

APRIL 20, 2013

Lege Artis Medicinae - 2013;23(03-04)

[Botulinum toxin (BTX) is used in various fields including biological warfare as well as cosmetic applications. However, its ability to block neuromuscular transmission provides a unique option for the therapy of diseases associated with increased muscle tension. BTX is effective in both striated and smooth muscles, which makes it applicable for a number of clinical purposes beyond its cosmetic use. Clinical applications include treatment of focal dystonias, the most common form of which is spastic torticollis (cervical dystonia) and blepharospasm. As BTX therapy is a safe, efficient and first-line treatment option in focal dystonias, the recognition of these diseases and their differential diagnosis might be important in almost all clinical fields, especially in ophthalmology, psychiatry, orthopedic surgery and rheumatology. The aim of this review is to present BTX therapy as a treatment option for these diseases.]

COMMENTS

0 comments

Related contents

Lege Artis Medicinae

[An estimation of the frequency of blepharospasm and hemifacial spam in hungary]

BIHARI József, TOMCSIK Miklós, BENYÓ Gábor

[Authors estimate the frequency of two focal dystonias, blepharospasm and hemifacial spasm in different general practices in Hungary. There are no similar data published in the literature. This epidemiologic study was an important step in the development of a center to treat focal dystonias in Hungary, since therapeutic results with botulinum toxin injections are excellent in these disorders. ]

Lege Artis Medicinae

[Diagnosis and treatment of the overactive bladder]

MAJOROS Attila, ROMICS Miklós

[The Overactive Bladder Syndrome (OAB) is a symptomatic diagnosis featured mainly by urgency of urine discharging. This condition can be triggered by a number of etiological factors, most of which are idiopathic in origin. Regardless of gender and age, the prevalence is ca. 16% and has a serious impact on the quality of life of the patients. In­ves­tigations are mostly performed through usual baseline examinations; second-line invasive examinations are rarely required. The broad spectrum of treatment options ran­ges from lifestyle changes and elimina­tion of triggering factors, through be­ha­vio­ural therapy and medication to the mi­ni­mally invasive (botulinum toxin, neuro­mo­dulation, percutaneous stimulation of the tibial nerve) - and rarely - invasive thera­pies. ]

Clinical Neuroscience

[Distant neuromuscular effect of locally injected botulinum toxin]

DIÓSZEGHY Péter, GLAUB Teodóra, MECHLER Ferenc

[Distant neuromuscular effect of locally infiltrated botulinum toxin was studied. The extensor digitorum communis muscle far from the place of injection was sampled with single-fiber EMG in patients treated for spasmodic torticollis. In 2 and 8–16 weeks after the infiltration the mean jitter values increased significantly compared to that of the results before the treatment. Extremely increased jitter values and blocks were found, too. The fiber density was also higher after the botulinum toxin infiltration. The electrophysiological changes may be a consequence of presynaptic blockade, the botulinum toxin induced terminal sprouting of motor axons and formation of new neuromuscular junctions. Parallel with the electrophysiological abnormalities no remote clinical effects were found. The single-fiber EMG proved to be a sensitive method to control the remote neuromuscular effect of botulinum toxin.]