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Recovery of Transcranial Motor Evoked Potentials After Atlantoaxial Stabilization for Chiari Formation: Report of 20 Cases.
World Neurosurg. 2019 Jul; 127:e644-e648.WN

Abstract

BACKGROUND

The outcome of neurophysiologic motor evoked potential (MEP) monitoring during surgery for Chiari formation by atlantoaxial fixation and without any bone or dural foramen magnum decompression is analyzed.

METHODS

During the period August 2017 to October 2018, 20 patients having Chiari formation with or without syringomyelia were surgically treated by atlantoaxial fixation. Apart from other forms of monitoring, MEP monitoring formed the basis of study. MEP monitoring was done during various phases of surgery that included monitoring immediately after screw tightening for atlantoaxial fixation.

RESULTS

It was observed that there was positive improvement in MEP in 100% of the patients when measured in the surgical stage immediately after the procedure of screw tightening for atlantoaxial fixation. The improvement in MEP correlated with parallel improvement in neurologic function.

CONCLUSIONS

Improvement in MEP adds credence to the hypothesis that atlantoaxial instability forms the nodal point of pathogenesis of Chiari formation.

Authors+Show Affiliations

Department of Neurosurgery, K.E.M. Hospital and Seth G.S. Medical College, Parel, Mumbai, India.Department of Neurosurgery, K.E.M. Hospital and Seth G.S. Medical College, Parel, Mumbai, India.Department of Neurosurgery, K.E.M. Hospital and Seth G.S. Medical College, Parel, Mumbai, India.Intraoperative Neurophysiology, Shiv Surgical Neurophysiology, Ahmedabad, India.Department of Neurosurgery, K.E.M. Hospital and Seth G.S. Medical College, Parel, Mumbai, India; Lilavati Hospital and Research Centre, Bandra (E), Mumbai, India. Electronic address: atulgoel62@hotmail.com.

Pub Type(s)

Journal Article

Language

eng

PubMed ID

30947011

Citation

Shah, Abhidha, et al. "Recovery of Transcranial Motor Evoked Potentials After Atlantoaxial Stabilization for Chiari Formation: Report of 20 Cases." World Neurosurgery, vol. 127, 2019, pp. e644-e648.
Shah A, Patil A, Vutha R, et al. Recovery of Transcranial Motor Evoked Potentials After Atlantoaxial Stabilization for Chiari Formation: Report of 20 Cases. World Neurosurg. 2019;127:e644-e648.
Shah, A., Patil, A., Vutha, R., Thakar, K., & Goel, A. (2019). Recovery of Transcranial Motor Evoked Potentials After Atlantoaxial Stabilization for Chiari Formation: Report of 20 Cases. World Neurosurgery, 127, e644-e648. https://doi.org/10.1016/j.wneu.2019.03.236
Shah A, et al. Recovery of Transcranial Motor Evoked Potentials After Atlantoaxial Stabilization for Chiari Formation: Report of 20 Cases. World Neurosurg. 2019;127:e644-e648. PubMed PMID: 30947011.
* Article titles in AMA citation format should be in sentence-case
TY - JOUR T1 - Recovery of Transcranial Motor Evoked Potentials After Atlantoaxial Stabilization for Chiari Formation: Report of 20 Cases. AU - Shah,Abhidha, AU - Patil,Abhinandan, AU - Vutha,Ravikiran, AU - Thakar,Khevana, AU - Goel,Atul, Y1 - 2019/04/01/ PY - 2019/02/21/received PY - 2019/03/21/revised PY - 2019/03/22/accepted PY - 2019/4/5/pubmed PY - 2020/1/15/medline PY - 2019/4/5/entrez KW - Atlantoaxial fixation KW - Chiari formation KW - Transcranial motor evoked potentials SP - e644 EP - e648 JF - World neurosurgery JO - World Neurosurg VL - 127 N2 - BACKGROUND: The outcome of neurophysiologic motor evoked potential (MEP) monitoring during surgery for Chiari formation by atlantoaxial fixation and without any bone or dural foramen magnum decompression is analyzed. METHODS: During the period August 2017 to October 2018, 20 patients having Chiari formation with or without syringomyelia were surgically treated by atlantoaxial fixation. Apart from other forms of monitoring, MEP monitoring formed the basis of study. MEP monitoring was done during various phases of surgery that included monitoring immediately after screw tightening for atlantoaxial fixation. RESULTS: It was observed that there was positive improvement in MEP in 100% of the patients when measured in the surgical stage immediately after the procedure of screw tightening for atlantoaxial fixation. The improvement in MEP correlated with parallel improvement in neurologic function. CONCLUSIONS: Improvement in MEP adds credence to the hypothesis that atlantoaxial instability forms the nodal point of pathogenesis of Chiari formation. SN - 1878-8769 UR - https://www.unboundmedicine.com/medline/citation/30947011/Recovery_of_Transcranial_Motor_Evoked_Potentials_After_Atlantoaxial_Stabilization_for_Chiari_Formation:_Report_of_20_Cases_ L2 - https://linkinghub.elsevier.com/retrieve/pii/S1878-8750(19)30916-7 DB - PRIME DP - Unbound Medicine ER -