@article{Krauss22:BMT,
    type = {article},
    key = {Krauss22:BMT},
    title = {Optical Quantification of Surface Electrical Stimulation to Prevent Denervation Muscle Atrophy in 15 Patients with Facial Paralysis [Abstract]},
    author = {Johannes Krauß and Gabriel Meincke and Maren Geitner and Dirk Arnold and Anna-Maria Kuttenreich and Valeria Mastryukova and Jan Beckmann and Wengelawit Misikire and Tim Büchner and Joachim Denzler and Orlando Guntinas-Lichius and Gerd F. Volk},
    journal = {Abstracts of the 2022 Joint Annual Conference of the Austrian (ÖGBMT), German (VDE DGBMT) and Swiss (SSBE) Societies for Biomedical Engineering, including the 14th Vienna International Workshop on Functional Electrical Stimulation},
    year = {2022},
    number = {s1},
    pages = {541},
    volume = {67},
    abstract = {Few studies showing therapeutic potentials of electrical stimulation (ES) of the facial surface in patients with facial palsy have been published so far. Not only muscular atrophy of the facial muscles but facial disfigurement represents the main issue for patient well-being. Therefore, objective methods are required to detect ES effects on facial symmetry within patients with complete unilateral facial paralysis. Methods Only patients with one-sided peripheral complete facial paralysis confirmed by needle-EMG were included and underwent ES twice a day for 20 min until the event of reinnervation or for a maximum of 1 year. ES-parameters were set during the first visit and confirmed/adapted every month thereafter. At each visit, patients underwent needle-electromyography, 2D-fotographic documentation and 3D-videos. Whereas 2D-images allow Euclidean measurements of facial symmetry, 3D-images permit detection of metrical divergence within both sides of face. Using the 2D and 3D-fotographic documentation, we aim to prove that ES is able to prevent muscular atrophy in patients with facial paralysis. Results In total 15 patients were recruited (medium 53 years, min. 25, max. 78; 8 female, 7 male). They underwent ES for a maximum of one year without serious adverse events. All patients were able to follow the ES protocol. On a short term, we could detect positive effects of ES on the extent of asymmetry of mouth corners. Preliminary results show positive effects leading to improvement of symmetry of denervated faces. Conclusion A positive short-term effect of ES on facial symmetry in patients with total paralysis could be shown. The improvement of optical appearance during ES has a positive effect on patients' satisfaction and resembles a promising, easily accessible marker for facial muscles in facial paralysis patients. Improving facial symmetry by ES might also be linked to preventing facial muscle atrophy. Acknowledgements Sponsored by DFG GU-463/12-1 and IZKF},
    copyright = {OpenAccess},
    doi = {10.1515/bmt-2022-2001},
    groups = {facialpalsy},
    issn = {1862-278X},
    langid = {english},
    series = {Biomedical Engineering / Biomedizinische Technik},
}