Neurophysiologisches Monitoring des Nervus facialis bei Operationen an Vestibularisschwannomen: Der aktuelle Stand

Prell, Julian; Strauss, Kristian; Rampp, Stefan und Szelenyi, Andrea (2019): Neurophysiologisches Monitoring des Nervus facialis bei Operationen an Vestibularisschwannomen: Der aktuelle Stand. In: Klinische Neurophysiologie, Bd. 50, Nr. 4: S. 213-219

Abstract

Background Functional deficit of the facial nerve is an important complication after vestibular schwannoma surgery and supposed to be prevented by IONM. Problem Which IONM methods are in use, what are their strengths and their weak points? Material and methods Review and summary of the literature. Results Mapping is derived from IONM techniques and is used to identify the facial nerve during surgery. IONM itself aims at detection of dangerous events in relation to facial nerve function, on the one hand, and prognostic estimation of damage done, on the other. Currently used techniques are direct electrical stimulation, free-running EMG, motor evoked potentials of the facial nerve (MEP) and processed EMG. Conclusions Mapping of the facial nerve is feasible and reliable. Damage to the nerve may be detected by IONM either in real-time (free-running EMG;processed EMG) or nearly in real-time (MEP). The prognostic value of all methods is limited by false positive monitoring results.

• Dokumententyp: Zeitschriftenartikel
• Fakultät: Medizin
• Themengebiete: 600 Technik, Medizin, angewandte Wissenschaften > 610 Medizin und Gesundheit
• ISSN: 1434-0275
• Sprache: Deutsch