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Published in: Journal of Neurology 1/2020

01-01-2020 | Blepharospasm | Original Communication

Treatment of blepharospasm and Meige’s syndrome with abo- and onabotulinumtoxinA: long-term safety and efficacy in daily clinical practice

Authors: Angela Jochim, Tobias Meindl, Christoph Huber, Tobias Mantel, Silke Zwirner, Florian Castrop, Bernhard Haslinger

Published in: Journal of Neurology | Issue 1/2020

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Abstract

Introduction

Thirty years after their approval, botulinum toxin injections still are the first-line therapy for blepharospasm. The aim of our study was to analyze long-term data concerning safety and efficacy in a large cohort over decades.

Methods

Treatment data of all patients with blepharospasm and Meige´s syndrome in our outpatient clinic having undergone at least three subsequent treatment sessions with current onabotulinumtoxinA or abobotulinumtoxin A were analyzed with respect to the course of dose, effect duration, side effects, patients´ satisfaction and occurrence/reasons for treatment discontinuation.

Results

The observation period was up to 18 years for onabotulinumtoxinA and 29 years for abobotulinumtoxinA with a total of 1778 and 9319 treatment sessions in 69 patients with onabotulinumtoxinA, 281 with abobotulinumtoxin A and 2 of these having used both products. The dose increased in the first years followed by a stable dose in the following years. The mean dose was 39.1/198.7 mouse units (onabotulinumtoxinA/abobotulinumtoxinA). In over 25% of all sessions, inhibition of the eyelid opening was effectively treated with pretarsal injections. The most common adverse events included ptosis (4%/5%), epiphora/sicca (4%/5%), double vision (1%/1%) and facial asymmetry (1%/1%). Reasons for therapy discontinuation were change to a nearby doctor, age, other diseases, spontaneous improvement, side effects or possible treatment failure. Only one patient was tested positive for neutralizing antibodies against botulinum toxin A.

Conclusion

The treatment of blepharospasm and Meige’s syndrome with onabotulinumtoxinA and abobotulinumtoxinA is safe and effective, also over a long observation period of up to 29 years.
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Metadata
Title
Treatment of blepharospasm and Meige’s syndrome with abo- and onabotulinumtoxinA: long-term safety and efficacy in daily clinical practice
Authors
Angela Jochim
Tobias Meindl
Christoph Huber
Tobias Mantel
Silke Zwirner
Florian Castrop
Bernhard Haslinger
Publication date
01-01-2020
Publisher
Springer Berlin Heidelberg
Published in
Journal of Neurology / Issue 1/2020
Print ISSN: 0340-5354
Electronic ISSN: 1432-1459
DOI
https://doi.org/10.1007/s00415-019-09581-w

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