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ELECTROPHYSIOLOGICAL INVESTIGATION OF HEMIFACIAL SPASM : F-WAVES AND ABNORMAL MUSCLE RESPONSES

Year 1999, Volume: 12 Issue: 2, 79 - 81, 03.12.2016

Tülin Tanrıdağ Dilek İnce Günal Erkan Karagöz Sevinç Aktan

Abstract

Objective: The aim of this study was to investigate the mechanism of hemifacial spasm pathophysiologically.
Methods: Patients with hemifacial spasm underwent an electrophysiological study of F-wave parameters of the facial nerves on the spasm side. F/M amplitude ratios, F duration and F frequency of appearance and the presence of abnormal muscle response (AMR) were compared with the asymptomatic side of the face which served as a control group.
Results: Enhancement of F-wave parameters were observed on the spasm side and AMR was present in all cases on the spasm side whereas it was absent on the other side.
Conclusions: Electrophysiological findings suggest the hyperexcitability of facial motor nucleus in hemifacial spasm.
Key Words: Hemifacial spasm, F-wave,
hyperexcitability, Facial motor nucleus.

References

  • Ishikawa M, Ohira T, Namiki J, et al.
  • Flcctrophysio logical investigation of hemifacial spasm after microvascular decompression: F waves of the facial muscles, blink reflexes, and abnormal muscle responses. J Neurosurg 199 7:86:654-661.
  • Ishikawa M, Ohira T, Hainiki J, et al.
  • Electrophysio logical investigation of hemifacial spasm: F-waves of the facial muscles. Acta Neurochir 1996;138:24-32.
  • Ishikawa N, Namiki J, Takase M, et al. Effect of
  • repetitive stimulation on lateral spreads and F- waves in hemifacial spasm. J Neurol Sci
  • ;142:99-106.
  • Zappia JJ, Wiet RJ, Chouan ADO, Zhao JC. Pitfalls in the diagnosis of hemifacial spasm. The Laryngoscope 1997;107:461-465.
  • Rasmnski M. Ephaptic transmission between single nerve fibres in the spinal nerve roots of dystrophicmice J Physiol 1980:30:151-169.
  • Nielsen VK. Pathophysiology of hemifacial spasm: I. Ephaptic transmission and ectopic excitation. Neurology, 1984;34:418-426.
  • Ishikava M, Ohira T, Namiki J, et al. Abnormal muscle response (lateral spread) and Fwave in patients with hemifacial spasm. J Neurol Sci 1996; 137:109-116.

Year 1999, Volume: 12 Issue: 2, 79 - 81, 03.12.2016

Tülin Tanrıdağ Dilek İnce Günal Erkan Karagöz Sevinç Aktan

Abstract

References

  • Ishikawa M, Ohira T, Namiki J, et al.
  • Flcctrophysio logical investigation of hemifacial spasm after microvascular decompression: F waves of the facial muscles, blink reflexes, and abnormal muscle responses. J Neurosurg 199 7:86:654-661.
  • Ishikawa M, Ohira T, Hainiki J, et al.
  • Electrophysio logical investigation of hemifacial spasm: F-waves of the facial muscles. Acta Neurochir 1996;138:24-32.
  • Ishikawa N, Namiki J, Takase M, et al. Effect of
  • repetitive stimulation on lateral spreads and F- waves in hemifacial spasm. J Neurol Sci
  • ;142:99-106.
  • Zappia JJ, Wiet RJ, Chouan ADO, Zhao JC. Pitfalls in the diagnosis of hemifacial spasm. The Laryngoscope 1997;107:461-465.
  • Rasmnski M. Ephaptic transmission between single nerve fibres in the spinal nerve roots of dystrophicmice J Physiol 1980:30:151-169.
  • Nielsen VK. Pathophysiology of hemifacial spasm: I. Ephaptic transmission and ectopic excitation. Neurology, 1984;34:418-426.
  • Ishikava M, Ohira T, Namiki J, et al. Abnormal muscle response (lateral spread) and Fwave in patients with hemifacial spasm. J Neurol Sci 1996; 137:109-116.
There are 11 citations in total.

Details

Journal Section Original Research
Authors

Tülin Tanrıdağ This is me

Dilek İnce Günal This is me

Erkan Karagöz This is me

Sevinç Aktan This is me

Publication Date December 3, 2016
Published in Issue Year 1999 Volume: 12 Issue: 2

Cite

APA Tanrıdağ, T., Günal, D. İ., Karagöz, E., Aktan, S. (2016). ELECTROPHYSIOLOGICAL INVESTIGATION OF HEMIFACIAL SPASM : F-WAVES AND ABNORMAL MUSCLE RESPONSES. Marmara Medical Journal, 12(2), 79-81.
AMA Tanrıdağ T, Günal Dİ, Karagöz E, Aktan S. ELECTROPHYSIOLOGICAL INVESTIGATION OF HEMIFACIAL SPASM : F-WAVES AND ABNORMAL MUSCLE RESPONSES. Marmara Med J. June 2016;12(2):79-81.
Chicago Tanrıdağ, Tülin, Dilek İnce Günal, Erkan Karagöz, and Sevinç Aktan. “ELECTROPHYSIOLOGICAL INVESTIGATION OF HEMIFACIAL SPASM : F-WAVES AND ABNORMAL MUSCLE RESPONSES”. Marmara Medical Journal 12, no. 2 (June 2016): 79-81.
EndNote Tanrıdağ T, Günal Dİ, Karagöz E, Aktan S (June 1, 2016) ELECTROPHYSIOLOGICAL INVESTIGATION OF HEMIFACIAL SPASM : F-WAVES AND ABNORMAL MUSCLE RESPONSES. Marmara Medical Journal 12 2 79–81.
IEEE T. Tanrıdağ, D. İ. Günal, E. Karagöz, and S. Aktan, “ELECTROPHYSIOLOGICAL INVESTIGATION OF HEMIFACIAL SPASM : F-WAVES AND ABNORMAL MUSCLE RESPONSES”, Marmara Med J, vol. 12, no. 2, pp. 79–81, 2016.
ISNAD Tanrıdağ, Tülin et al. “ELECTROPHYSIOLOGICAL INVESTIGATION OF HEMIFACIAL SPASM : F-WAVES AND ABNORMAL MUSCLE RESPONSES”. Marmara Medical Journal 12/2 (June 2016), 79-81.
JAMA Tanrıdağ T, Günal Dİ, Karagöz E, Aktan S. ELECTROPHYSIOLOGICAL INVESTIGATION OF HEMIFACIAL SPASM : F-WAVES AND ABNORMAL MUSCLE RESPONSES. Marmara Med J. 2016;12:79–81.
MLA Tanrıdağ, Tülin et al. “ELECTROPHYSIOLOGICAL INVESTIGATION OF HEMIFACIAL SPASM : F-WAVES AND ABNORMAL MUSCLE RESPONSES”. Marmara Medical Journal, vol. 12, no. 2, 2016, pp. 79-81.
Vancouver Tanrıdağ T, Günal Dİ, Karagöz E, Aktan S. ELECTROPHYSIOLOGICAL INVESTIGATION OF HEMIFACIAL SPASM : F-WAVES AND ABNORMAL MUSCLE RESPONSES. Marmara Med J. 2016;12(2):79-81.