Abstract
Purpose
Microvascular decompression (MVD) surgery has been accepted as a potentially curative method for hemifacial spasm (HFS). The primary cause of failure of MVD is incomplete decompression of the offending vessel due to inadequate visualization. This study is aimed at evaluating the benefit of endoscopic visualization and the value of fully endoscopic MVD.
Methods
From March 2016 to March 2018, 45 HFS patients underwent fully endoscopic MVD in our department. From opening the dura to preparing to close, the assistant held the endoscope and the surgeon operated. Abnormal muscle response (AMR) and brainstem auditory evoked potentials (BAEP) were monitored. For every patient, the offending vessel was transposed or interposed and achieved complete decompression. AMR was used to evaluate the adequacy of decompression at the end of the surgery. The intra-operative findings and postoperative outcomes and complications were analyzed.
Results
Immediately after surgeries, 39 patients (86.7%) achieved excellent result; 2 cases (4.4%) had good result. So the postoperative effective rate was 91.1% (41/45). During 12–36 month follow-up, the outcomes were excellent in 42 cases (93.3%) and good in 2 cases (4.4%), and the effective rate reached to 97.8% (44/45). No recurrence was noted. The postoperative complications were found in 2 patients (4.4%). One patient (2.2%) showed delayed facial palsy on the tenth day but was fully recovered 1 month later. Intracranial infection was noticed in 1 patient (2.2%) and was cured by using intravenous antibiotics for 2 weeks. There was no hearing impairment, hoarseness, or other complications.
Conclusions
Fully endoscopic MVD is both safe and effective in the treatment of HFS. Electrophysiological monitoring is helpful to gain a good result and reduce hearing impairment.
References
Badr-El-Dine M, El-Garem HF, Talaat AM, Magnan J (2002) Endoscopically assisted minimally invasive microvascular decompression of hemifacial spasm. Otol Neurotol 23:122–128
Barker FG, Jannetta PJ, Bissonette DJ, Shields PT, Larkins MV, Jho HD (1995) Microvascular decompression for hemifacial spasm. J Neurosurg 82(2):201–210
Bigder MG, Kaufmann AM (2016) Failed microvascular decompression surgery for hemifacial spasm due to persistent neurovascular compression: an analysis of reoperations. J Neurosurg 124(1):90–95
Campos-Benitez M, Kaufmann AM (2008) Neurovascular compression findings in hemifacial spasm. J Neurosurg 109(3):416–420
Cheng WY, Chao SC, Shen CC (2008) Endoscopic microvascular decompression of the hemifacial spasm. Surg Neurol Suppl 1(S1):40–46
Eby JB, Cha ST, Shahinian HK (2001) Fully endoscopic vascular decompression of the facial nerve for hemifacial spasm. Skull Base 11(3):189–197
El Damaty A, Rosenstengel C, Matthes M, Baldauf J, Dziemba O, Hosemann W, Schroeder HWS (2017) A new score to predict the risk of hearing impairment after microvascular decompression for hemifacial spasm. Neurosurgery 81(5):834–843
El Refaee E, Langner S, Marx S, Rosenstengel C, Baldauf J, Schroeder HWS (2019) Endoscope-assisted microvascular decompression for the management of hemifacial spasm caused by vertebrobasilar dolichoectasia. World Neurosurg 121:e566–e575
El Refaee E, Marx S, Rosenstengel C, Baldauf J, Schroeder HWS (2020) Arachnoid bands and venous compression as rare causes of hemifacial spasm: analysis of etiology in 353 patients. Acta Neurochir 162(1):211–219
Feng BH, Zheng XS, Wang XH, Ying TT, Yang M, Tang YD, Li ST (2015) Management of vessels passing through the facial nerve in the treatment of hemifacial spasm. Acta Neurochir 157(11):1935–1940
Flanders TM, Blue R, Roberts S, McShane BJ, Wilent B, Tambi V, Petrov D, Lee JYK (2018) Fully endoscopic microvascular decompression for hemifacial spasm. J Neurosurg 131(3):813–819
Halpern CH, Lang SS, Lee JY (2013) Fully endoscopic microvascular decompression: our early experience. Minim Invasive Surg 2013:739432
Iijima K, Tajika Y, Tanaka Y, Yorifuji H, Yoshimoto Y (2018) Microanatomy around the facial nerve pathway for microvascular decompression surgery investigated with correlative light microscopy and block-face imaging. World Neurosurg 118:e526–e533
Jannetta PJ, Abbasy M, Maroon JC, Ramos FM, Albin MS (1977) Etiology and definitive microsurgical treatment of hemifacial spasm. Operative techniques and results in 47 patients. J Neurosurg 47:321–328
Lee S, Park SK, Lee JA, Joo BE, Park K (2019) Missed culprits in failed microvascular decompression surgery for hemifacial spasm and clinical outcomes of redo surgery. World Neurosurg 129:e627–e633
Lu AY, Yeung JT, Gerrard JL, Michaelides EM, Sekula RF Jr, Bulsara KR (2014) Hemifacial spasm and neurovascular compression. Sci World J 2014:349319
Magnan J (2018) Endoscope-assisted decompression of facial nerve for treatment of hemifacial spasm. Neurochirurgie 64(2):144–152
Magnan J, Chays A, Lepetre C, Pencroffi E, Locatelli P (1994) Surgical perspectives of endoscopy of the cerebellopontine angle. Am J Otol 15:366–370
Mercier P, Bernard F (2018) Surgical anatomy for hemifacial spasm. Neurochirurgie 64(2):124–132
Mercier P, Sindou M (2018) The conflicting vessels in hemifacial spasm: literature review and anatomical-surgical implications. Neurochirurgie 64(2):94–100
O’Donoghue GM, O’Flynn P (1993) Endoscopic anatomy of the cerebellopontine angle. Am J Otol 14:122–125
Rak R, Sekhar LN, Stimac D, Hechl P (2004) Endoscope-assisted microsurgery for microvascular compression syndromes. Neurosurgery 54:876–881
Raslan AM, DeJesus R, Berk C, Zacest A, Anderson JC, Burchiel KJ (2009) Sensitivity of high-resolution three-dimensional magnetic resonance angiography and three-dimensional spoiled-gradient recalled imaging in the prediction of neurovascular compression in patients with hemifacial spasm. J Neurosurg 111(4):733–736
Ricci G, Di Stadio A, D’Ascanio L, La Penna R, Trabalzini F, Della Volpe A, Magnan J (2019) Endoscope-assisted retrosigmoid approach in hemifacial spasm: our experience. Braz J Otorhinolaryngol 85(4):465–472
Sang SC, Jong HC, Jae YC, Jin WC, Young GP (2001) Microvascular decompression for hemifacial spasm: a long-term follow-up of 1169 consecutive cases. Stereotact Funct Neurosurg 77(1–4):190–193
Sharma R, Garg K, Agarwal S, Agarwal D, Chandra PS, Kale SS, Sharma BS, Mahapatra AK (2017) Microvascular decompression for hemifacial spasm: a systematic review of vascular pathology, long term treatment efficacy and safety. Neurol India 65(3):493–505
Sindou M, Mercier P (2018) Microvascular decompression for hemifacial spasm: outcome on spasm and complications. A review. Neurochirurgie 64(2):106–116
Sindou MP, Polo G, Fischer C, Vial C (2006) Neurovascular conflict and hemifacial spasm. Suppl Clin Neurophysiol 58:274–281
Sun H, Li ST, Zhong J, Zhang WC, Hua XM, Wan L, Zheng XS (2014) The strategy of microvascular decompression for hemifacial spasm: how to decide the endpoint of an MVD surgery. Acta Neurochir 156(6):1155–1159
Wu Y, Davidson AL, Pan T, Jankovic J (2010) Asian over-representation among patients with hemifacial spasm compared to patients with cranial-cervical dystonia. J Neurol Sci 298(1–2):61–63
Ying TT, Li ST, Zhong J, Li XY, Wang XH, Zhu J (2011) The value of abnormal muscle response monitoring during microvascular decompression surgery for hemifacial spasm. Int J Surg 9:347–351
Zhao H, Zhu J, Zhang X, Tang YD, Zhou P, Wang XH, Li S (2018) Involved small arteries in patients who underwent microvascular decompression for hemifacial spasm. World Neurosurg 118:e646–e650
Zheng X, Feng B, Hong W, Zhang W, Yang M, Tang Y, Zhong J, Hua X, Li S (2012) Management of intraneural vessels during microvascular decompression surgery for trigeminal neuralgia. World Neurosurg 77:771–774
Zhi M, Lu XJ, Wang Q, Li B (2017) Application of neuroendoscopy in the surgical treatment of complicated hemifacial spasm. Neurosciences (Riyadh) 22(1):25–30
Zhong J, Li ST, Zhu J, Guan HX (2011) Is entire nerve root decompression necessary for hemifacial spasm? Int J Surg 9(3):254–257
Zhu J, Li ST, Zhong J, Guan HX, Ying TT, Yang M, Yang X, Zhou Q, Jiao W (2012) Role of arterioles in management of microvascular decompression in patients with hemifacial spasm. J Clin Neurosci 19(3):375–379
Funding
Shanghai Jiaotong University provided financial support in the form of Medical and Engineering Cross Foundation (Grant No. YG2016QN68).
Author information
Authors and Affiliations
Corresponding author
Ethics declarations
Conflict of interest
The authors declare that they have no conflict of interest.
Ethical approval
This study was approved by the ethics committee of Xinhua Hospital, Shanghai Jiaotong University School of Medicine.
Informed consent
Informed consent was obtained from all individual participants included in the study.
This article does not contain any studies with human participants performed by any of the authors.
Additional information
Publisher’s note
Springer Nature remains neutral with regard to jurisdictional claims in published maps and institutional affiliations.
This article is part of the Topical Collection on Neurosurgical technique evaluation
Rights and permissions
About this article
Cite this article
Feng, BH., Zhong, WX., Li, ST. et al. Fully endoscopic microvascular decompression of the hemifacial spasm: our experience. Acta Neurochir 162, 1081–1087 (2020). https://doi.org/10.1007/s00701-020-04245-5
Received:
Accepted:
Published:
Issue Date:
DOI: https://doi.org/10.1007/s00701-020-04245-5