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66. Jahrestagung der Deutschen Gesellschaft für Neurochirurgie (DGNC)
Friendship Meeting mit der Italienischen Gesellschaft für Neurochirurgie (SINch)

Deutsche Gesellschaft für Neurochirurgie (DGNC) e. V.

7. - 10. Juni 2015, Karlsruhe

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The value of lateral spread response monitoring in predicting the clinical outcome after microvascular decompression in hemifacial spasm: A prospective study on 50 patients

Meeting Abstract

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  • Ahmed El Damaty - Department of Neurosurgery, Cairo University, Cairo, Egypt; Klinik und Poliklinik für Neurochirurgie, Universitätsmedizin Greifswald
  • Christian Rosenstengel - Klinik und Poliklinik für Neurochirurgie, Universitätsmedizin Greifswald
  • Marc Matthes - Klinik und Poliklinik für Neurochirurgie, Universitätsmedizin Greifswald
  • Jörg Baldauf - Klinik und Poliklinik für Neurochirurgie, Universitätsmedizin Greifswald
  • Henry W. S. Schroeder - Klinik und Poliklinik für Neurochirurgie, Universitätsmedizin Greifswald

Deutsche Gesellschaft für Neurochirurgie. 66. Jahrestagung der Deutschen Gesellschaft für Neurochirurgie (DGNC). Karlsruhe, 07.-10.06.2015. Düsseldorf: German Medical Science GMS Publishing House; 2015. DocMO.14.04

doi: 10.3205/15dgnc065, urn:nbn:de:0183-15dgnc0650

Veröffentlicht: 2. Juni 2015

© 2015 Damaty et al.
Dieser Artikel ist ein Open-Access-Artikel und steht unter den Lizenzbedingungen der Creative Commons Attribution 4.0 License (Namensnennung). Lizenz-Angaben siehe http://creativecommons.org/licenses/by/4.0/.

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Objective: To assess the value of LSRs intraoperative monitoring as a prognostic indicator for the outcome of microvascular decompression in hemifacial spasm.

Method: Our study included 50 patients prospectively. The patients were classified into 4 groups whether LSRs were totally, partially, not relieved or not detected from the start. According to clinical outcome, the patients were classified into 4 groups depending on the clinical course after surgery and the residual symptoms if any. Then, correlations were made between LSRs events and treatment outcome to detect its reliability as a prognostic indicator.

Results: LSRs were relieved totally in 64% of the patients, partially relieved in 14%, not relieved in 6% and were not detected in 16% of the patients from the start. HFS was relieved directly after operation in 66% with clinical improvement of 90-100%. 26% described 50-90% improvement over the next 3 months after surgery. 4% suffered from a relapse after a HFS-free period and 4% reported minimal or no improvement describing 0-50% of the preoperative state. The percentage of the satisfied patients with the clinical outcome (improvement 90-100%) was 90%. Statistical analysis did not find a significant correlation between the relief of LSRs and clinical outcome.

Conclusions: LSRs were valuable as an intraoperative clue of adequate decompression but failed to represent a reliable prognostic indicator for treatment outcome.