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Joswig H, Träger U, Hildebrandt G. Obliteration of the Superior Petrosal Vein During Cerebellopontine Angle-Surgery: More Cons than Pros? World Neurosurg 2025; 193:68-75. [PMID: 39414140 DOI: 10.1016/j.wneu.2024.10.015] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/14/2024] [Accepted: 10/07/2024] [Indexed: 10/18/2024]
Abstract
A profound knowledge of the anatomy and surgical management of the superior petrosal vein (SPV) is vital during neurosurgical procedures in the posterior fossa. The debate on preserving the SPV or whether it can be duly obliterated is still ongoing. This review provides an update on all historical articles pertaining to the risk profile of superior petrosal sacrifice since Walter Dandy. Not only were the heterogenous methods but also the respective authors' conclusions analyzed. In light of the collected evidence, we come to the conclusion that occluding the SPV poses an ineligible risk to patient safety and should be considered obsolete.
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Affiliation(s)
- H Joswig
- HMU Health & Medical University Potsdam, Ernst von Bergmann Hospital, Department of Neurosurgery, Potsdam, Germany.
| | - U Träger
- HMU Health & Medical University Potsdam, Ernst von Bergmann Hospital, Department of Neurosurgery, Potsdam, Germany
| | - G Hildebrandt
- Saint Gallen Cantonal Hospital, Ostschweizer Schulungs- und Trainingszentrum, Saint Gallen, Switzerland
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Acevedo-González JC, Taub-Krivoy A, Sierra-Peña JA, Lizarazo JG. Determining prognostic factors in the treatment of primary hemifacial spasm: Clinical outcomes and complications. A literature review. World Neurosurg X 2025; 25:100406. [PMID: 39411270 PMCID: PMC11474211 DOI: 10.1016/j.wnsx.2024.100406] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/25/2023] [Accepted: 09/20/2024] [Indexed: 10/19/2024] Open
Abstract
Objective Primary Hemifacial Spasm (PHFS) significantly impacts quality of life, necessitating effective treatment like microvascular decompression of the facial nerve. This study aims to identify prognostic factors related to surgical treatment to enhance outcomes and minimize complications. A systematic review of literature from the past five years was conducted. Methods Following PRISMA guidelines, we systematically searched databases like PubMed, Embase, Scopus, Ovid, EBSCO, and Cochrane using keywords such as 'Hemifacial spasm,' 'Microvascular decompression,' 'Neurovascular conflict,' and 'Surgical techniques.' The search spanned January 2018 to November 2023. The 'Rayyan' program facilitated data compilation. Each author reviewed abstracts, applying inclusion criteria like systematic reviews, clinical trials, observational studies, and case series, while excluding theoretical or non-English articles. Results Of 26 selected articles, those solely addressing PHFS treatment with botulinum toxin and lacking surgical procedure data were excluded. Thus, our analysis focused on 16 articles, including meta-analyses, systematic reviews, clinical trials, and observational studies. Discussion Microvascular decompression at the cerebellar pontine angle is the mainstay treatment for hemifacial spasm. Despite limited statistically significant prognostic factors in the literature, overarching recommendations aim to improve outcomes, minimize complications, and prevent recurrences. Key considerations include surgeon expertise, precise techniques, thorough nerve exploration, identifying the conflict's cause, and intraoperative monitoring. Conclusions PHFS significantly impacts patients' lives, necessitating timely surgical intervention if initial treatments fail. While statistically significant prognostic factors may be lacking, this study highlights crucial considerations for successful treatment.
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Affiliation(s)
- Juan Carlos Acevedo-González
- Neurosurgeon Specialized in Functional Neurosurgery and Stereotaxic Surgery, Pain, and Spasticity Management, Full Professor at the Faculty of Medicine, Pontifical Javeriana University, San Ignacio University Hospital, Bogotá, Colombia
| | - Alex Taub-Krivoy
- Coordinator of the Research Group in Neurosurgery, Pontifical Javeriana University, Bogotá, Colombia
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Ong V, Schupper AJ, Bederson JB, Choudhri TF, Shrivastava RK. Bibliometric Analysis of the Top 100 Cited Articles and Author H-Indexes on the Surgical Treatment of Trigeminal Neuralgia. World Neurosurg 2024; 184:44-62. [PMID: 38216034 DOI: 10.1016/j.wneu.2024.01.029] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/13/2023] [Accepted: 01/07/2024] [Indexed: 01/14/2024]
Abstract
INTRODUCTION Medically refractory cases of trigeminal neuralgia often require treatment escalation. Surgical options include microvascular decompression and percutaneous ablation. This paper provides a bibliometric analysis of the most influential articles on the surgical management of trigeminal neuralgia. METHODS The Web of Science database was queried to identify the top 100 cited articles concerning surgical treatment of trigeminal neuralgia. The search terms used included ALL=(("trigeminal neuralgia" OR "tic douloureux" OR "Fothergill's disease" OR "Trifacial neuralgia") AND ("surgical treatment" OR "surgical management" OR "surgery" OR "neurosurgery") NOT ("radiosurgery" OR "gamma knife")). The extracted variables included the first and senior author names, journal, publication year, institution, and surgical modality. RESULTS Our bibliometric search yielded 2104 studies, with 41,502 citations overall. Within the top 100 articles, Zakrzewska had the most first author papers (n = 5), and Burchiel had the most senior author papers (n = 6). The Massachusetts General Hospital was the most represented institution (n = 5). The United States was the most represented country (51%). Microvascular decompression was the most studied surgical strategy (51%), followed by percutaneous radiofrequency coagulation (9%), balloon/nerve compression (7%), and glycerol rhizolysis (7%). Some studies assessed multiple treatment modalities (22%). The types of studies included retrospective articles (58%), prospective articles (26%), reviews (10%), anatomic studies (2%), and basic science (1%). Neurosurgery (35%) and the Journal of Neurosurgery (33%) were the most represented journals. CONCLUSIONS The current literature consists of retrospective reviews and mostly describes microvascular decompression for trigeminal neuralgia. Future studies should include further characterization of other surgical modalities such as percutaneous radiofrequency thermocoagulation, glycerol injection, and balloon compression.
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Affiliation(s)
- Vera Ong
- John A. Burns School of Medicine, University of Hawaii, Honolulu, Hawaii, USA
| | - Alexander J Schupper
- Department of Neurosurgery, Icahn School of Medicine at Mount Sinai, New York, New York, USA.
| | - Joshua B Bederson
- Department of Neurosurgery, Icahn School of Medicine at Mount Sinai, New York, New York, USA
| | - Tanvir F Choudhri
- Department of Neurosurgery, Icahn School of Medicine at Mount Sinai, New York, New York, USA
| | - Raj K Shrivastava
- Department of Neurosurgery, Icahn School of Medicine at Mount Sinai, New York, New York, USA
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Nunta-Aree S, Kateyoi T, Sitthinamsuwan B. Delayed complete remission of hemifacial spasms following microvascular decompression and the implications for optimal time of revision surgery. Acta Neurochir (Wien) 2024; 166:12. [PMID: 38227077 DOI: 10.1007/s00701-024-05891-9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/05/2023] [Accepted: 12/14/2023] [Indexed: 01/17/2024]
Abstract
BACKGROUND Microvascular decompression (MVD) is an effective method for directly treating hemifacial spasms (HFS). The timing for the consideration of failed MVD and reoperation has been paradoxical. OBJECTIVE This study aimed to investigate the delayed complete remission of HFS in terms of prevalence rate, duration between surgery and delayed complete remission, and predictive factors. METHODS A hundred patients with HFS who underwent MVD from 2012-2021 were enrolled in the study. All HFS occurred as a result of compression of the facial nerve by adjacent blood vessels. Clinical information, intraoperative findings, and surgical outcomes were incorporated for data analysis. RESULTS In the first week after MVD, 67 of 100 patients achieved complete remission of HFS, while the remaining 33 had incomplete remission. In long-term follow-up, 26 individuals gradually developed delayed complete remission with a median duration of 9.1 months. Finally, 86 of 100 patients achieved complete long-term remission. Recurrent HFS and incomplete remission were found in 7 and 7 patients, respectively. Factors associated with postoperative complete remission in the first week were a severe degree of facial nerve compression (p = 0.047, OR 2.75, 95% CI 1.01-7.40), with long-term complete remission was left-sided HFS (p = 0.012, OR 5.73, 95% CI 1.47-22.36), and with the appearance of delayed complete remission was the prolonged duration of HFS at least 3 years before MVD (p = 0.046, OR 3.75, 95% CI 1.03-13.76). Transient facial paresis was found in 11% of the patients. Of them, facial nerve function recovered completely in all cases. CONCLUSIONS A delayed complete remission of HFS could be expected in long-term follow-up after MVD and is probably related to a longer duration of HFS before surgery. Unnecessary reoperation should be avoided in the early years following the first surgery.
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Affiliation(s)
- Sarun Nunta-Aree
- Division of Neurosurgery, Department of Surgery, Faculty of Medicine Siriraj Hospital, Mahidol University, 2 Wang Lang Road, Bangkok Noi, Bangkok, 10700, Thailand
| | - Thanthip Kateyoi
- Division of Neurosurgery, Department of Surgery, Faculty of Medicine Siriraj Hospital, Mahidol University, 2 Wang Lang Road, Bangkok Noi, Bangkok, 10700, Thailand
- Department of Surgery, Prajuabkirikhan Hospital, Prajuabkirikhan, Thailand
| | - Bunpot Sitthinamsuwan
- Division of Neurosurgery, Department of Surgery, Faculty of Medicine Siriraj Hospital, Mahidol University, 2 Wang Lang Road, Bangkok Noi, Bangkok, 10700, Thailand.
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Zhong J. Identification of the leverage point in the offending artery. Acta Neurochir (Wien) 2024; 166:10. [PMID: 38217699 DOI: 10.1007/s00701-024-05894-6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/18/2023] [Accepted: 12/19/2023] [Indexed: 01/15/2024]
Affiliation(s)
- Jun Zhong
- Department of Neurosurgery, XinHua Hospital, Shanghai JiaoTong University School of Medicine, 1665 KongJiang Rd., Shanghai, 200092, China.
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Esmaeilzadeh M, Sabahi M, Maroufi SF, Dabeco R, Adada B, Roser F, Borghei-Razavi H. When the nerve keeps firing: an institutional experience and systematic review on delayed response after microvascular decompression for trigeminal neuralgia. Neurol Sci 2024; 45:109-118. [PMID: 37676372 DOI: 10.1007/s10072-023-07019-w] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/24/2023] [Accepted: 08/13/2023] [Indexed: 09/08/2023]
Abstract
BACKGROUND This study aimed to investigate the occurrence of delayed response following microvascular decompression (MVD) in patients with trigeminal neuralgia (TN) and identify potential contributing factors. Additionally, we present two cases with delayed relief observed at our institution. METHOD Two TN patients with delayed response and clear intra-operative arterial findings are presented in this study. Furthermore, we conducted a systematic review by searching electronic bibliographic databases, including MEDLINE (PubMed), Web of Science, Scopus, and Embase, from inception to 2022. RESULTS We identified a total of 28 full-text articles involving 322 TN patients who experienced delayed pain relief. Out of these, only 11 studies provided sufficient evidence and were included in the final analysis. Among the patients, 73.46% were female. The mean incidence rate of delayed response after MVD treatment for TN was 10.5%, with a range of 0.95 to 57.14% across different studies. The mean age of these patients was 59.86 years. The reported time to pain relief in the existing reports was at least 4 days post-surgery. In 72.88% of the reported cases, right-side dominance was observed. The majority of delayed cases experienced pain relief within 3 months, with a median time of 1 month. CONCLUSIONS A thorough examination of the probability of delayed pain relief after MVD for TN and understanding the characteristics of this phenomenon can offer surgeons valuable post-operative guidance and aid in decision-making regarding potential immediate reoperation.
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Affiliation(s)
- Mahla Esmaeilzadeh
- Student Research Committee, Mashhad University of Medical Sciences, Mashhad, Iran
| | - Mohammadmahdi Sabahi
- Department of Neurological Surgery, Pauline Braathen Neurological Center, Cleveland Clinic Florida, Weston, FL, USA
| | - Seyed Farzad Maroufi
- Neurosurgery Research Network (NRN), Universal Scientific Education and Research Network (USERN), Tehran, Iran
- Faculty of Medicine, Tehran University of Medical Sciences, Tehran, Iran
| | - Rocco Dabeco
- Department of Neurological Surgery, Pauline Braathen Neurological Center, Cleveland Clinic Florida, Weston, FL, USA
| | - Badih Adada
- Department of Neurological Surgery, Pauline Braathen Neurological Center, Cleveland Clinic Florida, Weston, FL, USA
| | - Florian Roser
- Department of Neurosurgery, Cleveland Clinic Abu Dhabi, Abu Dhabi, UAE
| | - Hamid Borghei-Razavi
- Department of Neurosurgery, Cleveland Clinic Abu Dhabi, Abu Dhabi, UAE.
- Cleveland Clinic Florida, 2950 Cleveland Clinic Blvd., Weston, FL, 33331, USA.
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Alkhayri A, Bourdillon P, Chauvet D, Bugdadi A, Alyousef M, Alsalmi S, Apra C, Lefaucheur JP, Aldea S, Le Guérinel C. Surgical treatment of hemifacial spasms: how to predict failure and complications through a series of 200 patients. Neurochirurgie 2023; 69:101498. [PMID: 37741362 DOI: 10.1016/j.neuchi.2023.101498] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/12/2023] [Revised: 08/16/2023] [Accepted: 09/16/2023] [Indexed: 09/25/2023]
Abstract
Primary hemifacial spasm (pHFS) is a benign but disabling movement disorder caused by a neurovascular conflict involving the facial nerve. Surgical treatment by microvascular decompression (MVD) is the most effective therapeutic. Predictors of surgical failure and surgical complications are still lacking. The aim of this study is to identify such predictors through the retrospective analysis of a series of 200 consecutive patients. All patients who underwent MVD for pHFS from January 1991 to December 2017 were included. All patients had at least two years follow-up. In addition to the demographic data, the outcome and the complications were collected. The primary outcome analysis showed that 7.5% of patients had a recurrence. Multiple and AICA related neurovascular conflicts were statistically associated to a higher recurrence rate after MVD (respectively p < 0.001 and p = 0.02). Permanent facial palsy occurred in 2.5% of patients, hearing loss in 9.0% (2.0% of complete unilateral impairment) and dizziness in 2.5%. The risk of each of these peripheral neurological impairments was statistically increased by a long duration between the first pHFS symptom and the MVD (p < 0.001). In case of recurrence, a second MDV was offered. Long term follow-up showed that all patients had a complete resolution of the HFS. Post-operative complication rate was not significantly increased after a second MVD. Multiple and AICA related neurovascular conflicts are associated to a higher risk of surgical failure. When a pHFS recurrence occurs, a second surgical procedure is associated with excellent outcome without significant increase of post-operative complications and should therefore be recommended.
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Affiliation(s)
- Abdu Alkhayri
- Department of Neurosurgery, Rothschild Foundation Hospital, Paris, France; Paris Cité University, Faculty of Medicine, Paris, France
| | - Pierre Bourdillon
- Department of Neurosurgery, Rothschild Foundation Hospital, Paris, France; Paris Cité University, Faculty of Medicine, Paris, France.
| | - Dorian Chauvet
- Department of Neurosurgery, Rothschild Foundation Hospital, Paris, France
| | - Abdulgadir Bugdadi
- Department of Surgery, Faculty of Medicine, Umm Al Qura University, Makkah, Almukarramah, Saudi Arabia
| | - Mohammed Alyousef
- Department of Surgery, Faculty of Medicine, King Abdulaziz University, Jeddah, Saudi Arabia
| | - Sultan Alsalmi
- Department of Neurosurgery, Imam Abdulrahman Bin Faisal University, Dammam, Saudi Arabia
| | - Caroline Apra
- Department of Neurosurgery, Rothschild Foundation Hospital, Paris, France; Sorbonne University, Faculty of Medicine, Paris, France
| | - Jean-Pascal Lefaucheur
- Department of Neuro-physiology, Henri Mondor University Hospital, Assistance Publique Hôpitaux de Paris, Créteil, France; University of Paris-Est, Paris, France
| | - Sorin Aldea
- Department of Neurosurgery, Rothschild Foundation Hospital, Paris, France
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Chen L, Shang Y, Zhang Y, Zhao Y. Endoscopic microvascular decompression versus microscopic microvascular decompression for trigeminal neuralgia: A systematic review and meta-analysis. J Clin Neurosci 2023; 117:73-78. [PMID: 37776679 DOI: 10.1016/j.jocn.2023.09.009] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/24/2023] [Revised: 08/11/2023] [Accepted: 09/14/2023] [Indexed: 10/02/2023]
Abstract
BACKGROUND To compare the efficacy and safety of full endoscopic or endoscope-assisted microvascular decompression (E-MVD) and microscopic microvascular decompression (M-MVD) for primary trigeminal neuralgia (TN). METHODS We systematically searched the online database, including PubMed, Embase and Cochrane Library. The search terms used included, but were not limited to, "Trigeminal Neuralgia", "Microvascular Decompression Surgery" and "Endoscope". Postoperative facial pain relief and postoperative complications were considered for meta-analysis. All the outcomes were calculated as odds ratios (ORs) with 95% confidence intervals using R language. RESULTS A total of three studies involving 442 (E-MVD [218] versus M-MVD [224]) patients were included for analysis in our study. Postoperative facial pain relief (very much improved or much improved) was no difference between the two groups (OR, 0.95;95% CI, 0.57-1.58; I2 = 0%; p = 0.83). In addition, the occurrence of some postoperative complications was not statistically different between the two groups, including CSFleak (OR, 1.35;95% CI, 0.16-11.13; I2 = 0%; p = 0.94), facial paralysis (OR, 0.26;95% CI, 0.03-2.54; I2 = 0%; p = 0.67), hearing loss (OR, 0.87;95% CI, 0.30-2.55; I2 = 32%; p = 0.22), facial numbness (OR, 1.03;95% CI, 0.56-1.87; I2 = 62%; p = 0.10). CONCLUSIONS Both endoscopic microvascular decompression and microscopic microvascular decompression for trigeminal neuralgia appear to provide patients with equivalent facial pain relief outcomes. Complication rates were also similar between the groups.
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Affiliation(s)
- Lulu Chen
- Department of Neurosurgery, The First Affiliated Hospital of Bengbu Medical College, Bengbu 233000, China
| | - Yuchun Shang
- Department of Neurosurgery, The First Affiliated Hospital of Bengbu Medical College, Bengbu 233000, China
| | - Yesen Zhang
- Department of Neurosurgery, The First Affiliated Hospital of Bengbu Medical College, Bengbu 233000, China
| | - Yongxuan Zhao
- Department of Neurosurgery, The First Affiliated Hospital of Bengbu Medical College, Bengbu 233000, China.
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Jeon C, Kim M, Lee HS, Kong DS, Park K. Outcomes after Microvascular Decompression for Hemifacial Spasm without Definite Radiological Neurovascular Compression at the Root Exit Zone. Life (Basel) 2023; 13:2064. [PMID: 37895445 PMCID: PMC10608077 DOI: 10.3390/life13102064] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/31/2023] [Revised: 09/24/2023] [Accepted: 09/29/2023] [Indexed: 10/29/2023] Open
Abstract
The purpose of this study was to investigate the outcome of microvascular decompression (MVD) in patients with hemifacial spasm (HFS) who have no definite radiological neurovascular compression (NVC). Sixteen HFS patients without radiological NVC on preoperative MRI underwent MVD surgery. The symptoms were left-sided in fourteen (87.5%) and right-sided in two patients (12.5%). Intraoperatively, the most common vessel compressing the facial nerve was the AICA (8, 44.4%), followed by arterioles (5, 27.8%), veins (4, 22.2%), and the PICA (1, 5.6%). The most common compression site was the cisternal portion (13, 76.5%) of the facial nerve, followed by the REZ (4, 23.5%). One patient (6.3%) was found to have multiple NVC sites. Arachnoid type (7, 50%) was the most common compressive pattern, followed by perforator type (4, 28.6%), sandwich type (2, 14.3%), and loop type (1, 7.1%). A pure venous compression was seen in two patients, while a combined venous-arterial "sandwich" compression was detected in two patients. Symptom improvement was observed in all of the patients. Only one patient experienced recurrence after improvement. Based on our experience, MVD surgery can be effective for primary HFS patients with no definite radiological NVC. MVD can be considered if the patient shows typical HFS features, although NVC is not evident on MRI.
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Affiliation(s)
- Chiman Jeon
- Department of Neurosurgery, Korea University Ansan Hospital, Ansan 15355, Republic of Korea;
| | - Minsoo Kim
- Department of Neurosurgery, Gangneung Asan Hospital, University of Ulsan College of Medicine, Gangneung 25440, Republic of Korea;
| | - Hyun-Seok Lee
- Department of Neurosurgery, Konkuk University Medical Center, Seoul 05030, Republic of Korea;
| | - Doo-Sik Kong
- Department of Neurosurgery, Samsung Medical Center, Sungkyunkwan University School of Medicine, Seoul 06351, Republic of Korea;
| | - Kwan Park
- Department of Neurosurgery, Konkuk University Medical Center, Seoul 05030, Republic of Korea;
- Department of Neurosurgery, Sungkyunkwan University School of Medicine, Seoul 06351, Republic of Korea
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Lee HS, Park K. Penetrating Offenders in Hemifacial Spasm: Surgical Tactics and Prognosis. Life (Basel) 2023; 13:2021. [PMID: 37895403 PMCID: PMC10608199 DOI: 10.3390/life13102021] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/03/2023] [Revised: 09/22/2023] [Accepted: 10/05/2023] [Indexed: 10/29/2023] Open
Abstract
(1) Background: In cases of hemifacial spasm (HFS), there are various patterns related to the vascular compression of the facial nerve, including a very rare form that is seen when the offending vessel penetrates the facial nerve. However, there have been few reports in the literature regarding the associated surgical techniques and postoperative prognosis. (2) Methods: A retrospective review was conducted of 4755 patients who underwent microvascular decompression (MVD) surgery from April 1997 to June 2023. In total, 8 out of the 4755 patients (0.2%) exhibited a penetrating offending vessel; the medical and surgical records of these 8 patients were then analyzed. Surgery was then attempted to maximally decompress the penetrating offender. (3) Results: Seven out of the eight patients (87.5%) were spasm-free immediately after surgery, and one had only 10% residual spasm compared to their preoperative condition. That patient was also spasm-free one year later. Postoperative facial palsy occurred in one patient (12.5%) who was assessed as grade II in the House-Brackmann grading system. In another patient, the resection of a small facial nerve bundle did not result in facial palsy. There were no cases of hearing loss or other complications. (4) Conclusions: Decompressing the penetrating offender did not increase the incidence of facial palsy, and the prognosis for hemifacial spasms was good. Therefore, when a penetrating pattern was encountered during MVD surgery, decompression between the penetrating offender and the facial nerve may offer good results.
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Affiliation(s)
- Hyun-Seok Lee
- Department of Neurosurgery, Konkuk University Medical Center, Seoul 05030, Republic of Korea;
| | - Kwan Park
- Department of Neurosurgery, Konkuk University Medical Center, Seoul 05030, Republic of Korea;
- Department of Neurosurgery, Sungkyunkwan University School of Medicine, Seoul 06351, Republic of Korea
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Hu S, Huang Z, Wang H, Chen K, Xia L, Dou N, Zhong J. The Value of a Headless Pear Shape in Percutaneous Balloon Compression for Trigeminal Neuralgia. Oper Neurosurg (Hagerstown) 2023; 25:372-378. [PMID: 37499245 DOI: 10.1227/ons.0000000000000831] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/21/2023] [Accepted: 05/16/2023] [Indexed: 07/29/2023] Open
Abstract
BACKGROUND AND OBJECTIVES Percutaneous balloon compression (PBC) has been regarded as a simple and effective remedy for trigeminal neuralgia. This study aims to retrospectively analyze the correlation between intraoperative balloon shapes and postoperative outcomes. METHOD Those consecutive PBC cases performed in our department between 2019 and 2022 were reviewed. According to the intraoperative balloon figures, they were cataloged as headless pear, slim pear, bottle gourd, and winter melon groups. The degree of pain or numbness was quantified using the visual analog scale. Those pain-free or pain score <3 and satisfied by the patient were called effective, and those numb score >3 were taken into account of numbness incidence. RESULTS Except for missing cases, 160 were finally recruited in this study with a mean follow-up for 23.6 ± 12.8 months. Postoperatively, the pain score plunged from 8.8 ± 1.0 to 0.8 ± 2.0 immediately, which rose slightly over time and maintained at 2.4 ± 3.1. The maximal pain score drop occurred in the headless pear group ( P < .001) and the minimal in the winter melon group ( P < .001). The early efficacy of PBC was 100%, 84.1%, 91.4%, and 50.0%, respectively. However, the long-term efficacy was 88.2%, 75.0%, 82.1% and 25.0%. The ipsilateral numbness occurred in most of the cases immediately after PBC with a score of 3.5 ± 2.3, which decreased significantly within 3 months to 2.3 ± 2.0 and turned to 1.7 ± 1.8 finally ( P < .05). The highest and lowest numb score appeared in bottle gourd and winter melon groups, respectively ( P < .05). CONCLUSION A headless pear shape emerged in lateral fluoroscopy as the balloon was fully inflated indicates that the entire Meckel cave is suffused, and hence, the anterior semilunar ganglion has been solidly compressed, which may lead to a successful outcome.
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Affiliation(s)
- Shaozhen Hu
- Department of Neurosurgery, Xinhua Hospital, Shanghai JiaoTong University School of Medicine, Shanghai, China
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Xu R, So RJ, Materi J, Nair SK, Alomari SO, Huang J, Lim M, Bettegowda C. Factors Predicting Cerebrospinal Fluid Leaks in Microvascular Decompressions: A Case Series of 1011 Patients. Oper Neurosurg (Hagerstown) 2023; 24:262-267. [PMID: 36656065 DOI: 10.1227/ons.0000000000000503] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/09/2022] [Accepted: 09/07/2022] [Indexed: 01/20/2023] Open
Abstract
BACKGROUND Microvascular decompression (MVD) using a retrosigmoid approach is a highly effective, open-surgical procedure for neurovascular conflict in the posterior fossa, although there is a risk of postoperative cerebrospinal fluid (CSF) leak. OBJECTIVE To identify factors associated with postoperative CSF leakage after MVD. METHODS We retrospectively reviewed all patients who underwent MVDs at our institution from 2007 to 2020. Patient demographics, clinical diagnoses, and procedural characteristics were recorded and compared. Factors leading to CSF leak were analyzed using χ 2 , univariate, and multivariate regression. RESULTS Of 1011 patients who underwent MVDs, 37 (3.7%) presented with postoperative CSF leaks. In univariate analysis, the use of Cranios/Norian to obliterate the air cells was protective against CSF leak ( P = .01). Craniotomies ( P = .002), the use of dural substitutes such as Durepair ( P = .04), dural onlays such as DuraGen ( P = .04), muscle/fascia ( P = .03), and titanium mesh cranioplasty >5 cm ( P = .03) were associated with CSF leak. On multivariate analysis, only the presence of craniotomies ( P = .04) and nonprimary dural closure ( P = .03) were significant risk factors for CSF leak. When excluding the 34 (3.4%) patients who underwent a craniotomy, the lack of primary dural closure still remained significantly associated with postoperative CSF leak ( P = .04). CONCLUSION Our results represent one of the largest series of posterior fossa surgeries for a uniform indication in North America. Our study demonstrates increased risk for postoperative CSF leak when craniotomies are performed and when primary dural closure is not established. Given the small sample of patients who received a craniotomy, however, future studies corroborating this finding should be performed.
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Affiliation(s)
- Risheng Xu
- Department of Neurosurgery, Johns Hopkins University School of Medicine, Baltimore, Maryland, USA
| | - Raymond J So
- Department of Neurosurgery, Johns Hopkins University School of Medicine, Baltimore, Maryland, USA
| | - Joshua Materi
- Department of Neurosurgery, Johns Hopkins University School of Medicine, Baltimore, Maryland, USA
| | - Sumil K Nair
- Department of Neurosurgery, Johns Hopkins University School of Medicine, Baltimore, Maryland, USA
| | - Safwan O Alomari
- Department of Neurosurgery, Johns Hopkins University School of Medicine, Baltimore, Maryland, USA
| | - Judy Huang
- Department of Neurosurgery, Johns Hopkins University School of Medicine, Baltimore, Maryland, USA
| | - Michael Lim
- Department of Neurosurgery, Stanford University School of Medicine, Stanford, California, USA
| | - Chetan Bettegowda
- Department of Neurosurgery, Johns Hopkins University School of Medicine, Baltimore, Maryland, USA
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13
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Sattari SA, Shahbandi A, Xu R, Hung A, Feghali J, Yang W, Lee RP, Bettegowda C, Huang J. Sacrifice or preserve the superior petrosal vein in microvascular decompression surgery: a systematic review and meta-analysis. J Neurosurg 2023; 138:390-398. [PMID: 35901727 DOI: 10.3171/2022.5.jns22143] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/19/2022] [Accepted: 05/05/2022] [Indexed: 02/04/2023]
Abstract
OBJECTIVE In microvascular decompression (MVD) surgery through the retrosigmoid approach, the surgeon may have to sacrifice the superior petrosal vein (SPV). However, this is a controversial maneuver. To date, high-level evidence comparing the operative outcomes of patients who underwent MVD with and without SPV sacrifice is lacking. Therefore, this study sought to bridge this gap. METHODS The authors searched the Medline and PubMed databases with appropriate Medical Subject Heading (MeSH) terms and keywords. The primary outcome was vascular-related complications; secondary outcomes were new neurological deficit, cerebrospinal fluid (CSF) leak, and neuralgia relief. The pooled proportions of outcomes and OR (95% CI) for categorical data were calculated by using the logit transformation and Mantel-Haenszel methods, respectively. RESULTS Six studies yielding 1143 patients were included, of which 618 patients had their SPV sacrificed. The pooled proportion (95% CI) values were 3.82 (0.87-15.17) for vascular-related complications, 3.64 (1.0-12.42) for new neurological deficits, 2.85 (1.21-6.58) for CSF leaks, and 88.90 (84.90-91.94) for neuralgia relief. The meta-analysis concluded that, whether the surgeon sacrificed or preserved the SPV, the odds were similar for vascular-related complications (2.5% vs 1.5%, OR [95% CI] 1.01 [0.33-3.09], p = 0.99), new neurological deficits (1.2% vs 2.8%, OR [95% CI] 0.55 [0.18-1.66], p = 0.29), CSF leak (3.1% vs 2.1%, OR [95% CI] 1.16 [0.46-2.94], p = 0.75), and neuralgia relief (86.6% vs 87%, OR [95% CI] 0.96 [0.62-1.49], p = 0.84). CONCLUSIONS SPV sacrifice is as safe as SPV preservation. The authors recommend intentional SPV sacrifice when gentle retraction fails to enhance surgical field visualization and if the surgeon encounters SPV-related neurovascular conflict and/or anticipates impeding SPV-related bleeding.
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Affiliation(s)
- Shahab Aldin Sattari
- 1Department of Neurosurgery, Johns Hopkins University School of Medicine, Baltimore, Maryland; and
| | - Ataollah Shahbandi
- 2Tehran School of Medicine, Tehran University of Medical Science, Tehran, Iran
| | - Risheng Xu
- 1Department of Neurosurgery, Johns Hopkins University School of Medicine, Baltimore, Maryland; and
| | - Alice Hung
- 1Department of Neurosurgery, Johns Hopkins University School of Medicine, Baltimore, Maryland; and
| | - James Feghali
- 1Department of Neurosurgery, Johns Hopkins University School of Medicine, Baltimore, Maryland; and
| | - Wuyang Yang
- 1Department of Neurosurgery, Johns Hopkins University School of Medicine, Baltimore, Maryland; and
| | - Ryan P Lee
- 1Department of Neurosurgery, Johns Hopkins University School of Medicine, Baltimore, Maryland; and
| | - Chetan Bettegowda
- 1Department of Neurosurgery, Johns Hopkins University School of Medicine, Baltimore, Maryland; and
| | - Judy Huang
- 1Department of Neurosurgery, Johns Hopkins University School of Medicine, Baltimore, Maryland; and
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14
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Zhong J. The Key to a Successful PBC in Treatment of Trigeminal Neuralgia. ACTA NEUROCHIRURGICA. SUPPLEMENT 2023; 135:161-165. [PMID: 38153465 DOI: 10.1007/978-3-031-36084-8_26] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/29/2023]
Abstract
As a minimally invasive treatment of trigeminal neuralgia, percutaneous balloon compression (PBC) has become increasingly popular worldwide. Because it is simple and straightforward, it does not need a complicated apparatus only a fluoroscope plus an operator's experience. Therefore, the surgical technique seems to be essential and worth further addressing. The paper stresses that the target of PBC should be the semilunar ganglion (the soma of neurons) rather than the rootlets (axons) because the latter is renewable. To obtain a sufficient pressure against the ganglion, Meckel's cave should be covered utterly by an inflating balloon, which fluoroscopically appears in a pear shape. To attain a proper balloon position, it is suggested to make a tunnel with a blunt stylet in a proper penetrative angle before inserting a soft catheter. Too large a pear is unnecessary, hence injecting should be stopped when growth becomes apparently slow. To avoid an unacceptable postoperative paresthesia, a prolonged compression is not encouraged.
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Affiliation(s)
- Jun Zhong
- Department of Neurosurgery, Xinhua Hospital, Shanghai JiaoTong University School of Medicine, Shanghai, China.
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15
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Cai Y, Zhang X, Chen X, Dai X, Chai S, Li G, Mei Z, Ho J, Chen J, Li L, Xiong N. Autologous bone fragments for skull reconstruction after microvascular decompression. BMC Surg 2022; 22:395. [PMCID: PMC9673364 DOI: 10.1186/s12893-022-01820-8] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/09/2022] [Accepted: 10/18/2022] [Indexed: 11/19/2022] Open
Abstract
Background Various methods are used to reconstruct the skull after microvascular decompression, giving their own advantages and disadvantages. The objective of this study was to evaluate the efficacy of using autologous bone fragments for skull reconstruction after microvascular decompression. Methods The clinical and follow-up data of 145 patients who underwent microvascular decompression and skull reconstruction using autologous bone fragments in our hospital from September 2020 to September 2021 were retrospectively analyzed. Results Three patients (2.06%) had delayed wound healing after surgery and were discharged after wound cleaning. No patient developed postoperative cerebrospinal fluid leakage, incisional dehiscence, or intracranial infection. Eighty-five (58.62%) patients underwent follow-up cranial computed tomography at 1 year postoperatively, showed excellent skull reconstruction. And, the longer the follow-up period, the more satisfactory the cranial repair. Two patients underwent re-operation for recurrence of hemifacial spasm, and intraoperative observation revealed that the initial skull defect was filled with new skull bone. Conclusion The use of autologous bone fragments for skull reconstruction after microvascular decompression is safe and feasible, with few postoperative wound complications and excellent long-term repair results.
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Affiliation(s)
- Yuankun Cai
- grid.413247.70000 0004 1808 0969Department of Neurosurgery, Zhongnan Hospital of Wuhan University, Wuhan, Hubei China
| | - Xiuling Zhang
- grid.508021.eDepartment of Neurology, Xiaogan Hospital Affiliated to Wuhan University of Science and Technology, Xiaogan, Hubei China
| | - Xiaobin Chen
- Department of Neurosurgery, Wuhan NO. 1 Hospital, Wuhan, Hubei China
| | - Xuan Dai
- grid.413247.70000 0004 1808 0969Department of Neurosurgery, Zhongnan Hospital of Wuhan University, Wuhan, Hubei China
| | - Songshan Chai
- grid.413247.70000 0004 1808 0969Department of Neurosurgery, Zhongnan Hospital of Wuhan University, Wuhan, Hubei China
| | - Guo Li
- grid.413247.70000 0004 1808 0969Department of Neurosurgery, Zhongnan Hospital of Wuhan University, Wuhan, Hubei China
| | - Zhimin Mei
- grid.413247.70000 0004 1808 0969Department of Neurosurgery, Zhongnan Hospital of Wuhan University, Wuhan, Hubei China
| | - Joshua Ho
- grid.194645.b0000000121742757School of Biomedical Sciences, LKS Faculty of Medicine, Hongkong University, Hongkong, China
| | - Jincao Chen
- grid.413247.70000 0004 1808 0969Department of Neurosurgery, Zhongnan Hospital of Wuhan University, Wuhan, Hubei China
| | - Luoqing Li
- Department of Neurology, Yueyang Central Hospital, Yueyang, Hunan China
| | - Nanxiang Xiong
- grid.413247.70000 0004 1808 0969Department of Neurosurgery, Zhongnan Hospital of Wuhan University, Wuhan, Hubei China
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16
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Guo X, Zhang C, Li Y, Li X, Ma X, Li W. Fully Endoscopic Microvascular Decompression for Hemifacial Spasm Using Improved Retrosigmoid Infrafloccular Approach: Clinical Analysis of 81 Cases. Oper Neurosurg (Hagerstown) 2022; 23:40-45. [PMID: 35726928 DOI: 10.1227/ons.0000000000000221] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/11/2021] [Accepted: 12/26/2021] [Indexed: 11/19/2022] Open
Abstract
BACKGROUND Microvascular decompression (MVD) is widely accepted as the preferred treatment for hemifacial spasm (HFS). Endoscopy has been implemented to provide a comprehensive view of neurovascular conflicts and minimize the damage caused by brain retraction while exploring the facial nerve root exit zone of the brain stem. OBJECTIVE To preliminarily evaluate the surgical safety and efficacy of fully endoscopic MVD for HFS using an improved retrosigmoid infrafloccular approach. METHODS The clinical data of 81 patients with HFS who underwent fully endoscopic MVD using an improved endoscopic retrosigmoid infrafloccular approach from June 2019 to December 2020 were retrospectively analyzed. The reliability and advantages of this surgical technique in the treatment of HFS were evaluated according to the intraoperative situation, outcomes of postoperative symptoms, and main complications. RESULTS During the follow-up period, 77 cases (95.1%) were completely cured, with immediate facial twitch disappearance in 56 cases and a delayed cure in 21 cases; in 4 cases (4.9%), there was no obvious improvement. There were no cases of recurrence. There were 4 cases (4.9%) of transient facial paralysis after MVD, all of which were completely cured in 3 months. Three cases (3.7%) had hearing loss postoperatively, of whom 2 showed good improvement. At the end of the follow-up period, 1 case (1.2%) still had tinnitus. There were no cases of postoperative intracranial hemorrhage, cerebellar swelling, or death. CONCLUSION Fully endoscopic MVD using an improved retrosigmoid infrafloccular approach not only has the advantages of panoramic surgical visualization but also takes into account the requirements of minimally invasive surgery.
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Affiliation(s)
- Xing Guo
- Department of Neurosurgery, Qilu Hospital, Cheeloo College of Medicine, Shandong University, Jinan, China
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17
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Sinha AK, Jain S, Vyas MA, Krishnankutty M. "PTFE Sleeve Graft" Technique to Remove Neurovascular Conflict in Micro Vascular Decompression for Trigeminal Neuralgia. Neurol India 2022; 70:1412-1416. [PMID: 36076637 DOI: 10.4103/0028-3886.355155] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/04/2022]
Abstract
Background Microvascular decompression (MVD) of the trigeminal nerve is a well-accepted nondestructive procedure for trigeminal neuralgia. Usually, Teflon (PTFE) puff or felt graft techniques, which are most commonly used, are associated with arachnoiditis and recurrence among other complications. We use the "sleeve graft" technique using PTFE to separate the neurovascular conflict and here we describe our experience with the same in 376 cases. Objectives To study the outcomes in 376 patients treated with sleeve graft technique for trigeminal neuralgia. Materials and Methods For a period of 18 years, from 2002 to 2020, all cases of medically refractory trigeminal neuralgia were subjected to the "sleeve graft" technique for MVD. Pre- and post-operatively, pain score was given according to Barrow Neurological Institute pain intensity score. Cases were observed for any complications and pain relief in short and long-term follow-up. Results In total, 376 cases of refractory primary trigeminal neuralgia cases, among which 198 patients underwent MVD with no prior intervention, 158 underwent MVD following percutaneous ablative procedure, 13 were "Revision MVD" previously done at other centers, and four were post gamma knife failure. There was no incidence of arachnoiditis or recurrence of symptoms. Further, 368 (97.8%) patients had complete recovery from symptoms while eight (2.2%) had partial recovery after 5 years of follow-up. Complications included hearing loss (n = 1), temporary hypoesthesia (n = 45), and permanent hypoesthesia (n = 7). Conclusion "PTFE Sleeve Graft" technique to remove the neurovascular conflict in micro vascular decompression (MVD) for trigeminal neuralgia is a safe and effective technique that yields better results.
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Affiliation(s)
- Ajit K Sinha
- Department of Neurosurgery, Sir Ganga Ram Hospital, Delhi, India
| | - Shrey Jain
- Department of Neurosurgery, Sir Ganga Ram Hospital, Delhi, India
| | - Medha A Vyas
- Department of Neurosurgery, Sir Ganga Ram Hospital, Delhi, India
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18
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Kim M, Park SK, Lee S, Lee JA, Park K. Prevention of Superior Petrosal Vein Injury during Microvascular Decompression for Trigeminal Neuralgia: Operative Nuances. Skull Base Surg 2022; 83:e284-e290. [DOI: 10.1055/s-0041-1725036] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/06/2020] [Accepted: 01/17/2021] [Indexed: 10/22/2022]
Abstract
Abstract
Background The superior petrosal vein (SPV) often obscures the surgical field or bleeds during microvascular decompression (MVD) for the treatment of trigeminal neuralgia. Although SPV sacrifice has been proposed, it is associated with multiple complications. We have performed more than 4,500 MVDs, including approximately 400 cases involving trigeminal neuralgia. We aimed to describe our operative technique and nuances to avoid SPV injury.
Methods We have provided a detailed description of our institutional protocol, including the anesthesia technique, neurophysiologic monitoring, patient positioning, surgical approach, and SPV management. The surgical outcomes and treatment-related complications were retrospectively analyzed.
Results No SPVs were sacrificed intentionally or accidentally during our MVD protocol for trigeminal neuralgia. In the 344 operations performed during 2006 to 2020, 269 (78.2%) patients did not require medication postoperatively, 58 (16.9%) tolerated the procedure with adequate medication, and 17 (4.9%) did not respond to MVD. Postoperatively, 35 (10.2%), 1 (0.3%), and 0 patients showed permanent trigeminal, facial, or vestibulocochlear nerve dysfunction, respectively. Wound infection occurred in five (1.5%) patients, while cerebrospinal fluid leaks occurred in three (0.9%) patients. Hemorrhagic complications appeared in four (1.2%) patients but these were unrelated to SPV injury. No surgery-related mortalities were reported.
Conclusion MVD for the treatment of trigeminal neuralgia can be achieved safely without sacrificing the SPV. A key step is positioning the patient's vertex at a 10-degree elevation from the floor, which can ease venous return and loosen the SPV, making it less fragile to manipulation and providing a wider surgical corridor.
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Affiliation(s)
- Minsoo Kim
- Department of Neurosurgery, Samsung Medical Center, Sungkyunkwan University School of Medicine, Seoul, The Republic of Korea
- Department of Medicine, Graduate School, Yonsei University College of Medicine, Seoul, The Republic of Korea
| | - Sang-Ku Park
- Department of Neurosurgery, Konkuk University Medical Center, Konkuk University School of Medicine, Seoul, The Republic of Korea
| | - Seunghoon Lee
- Department of Neurosurgery, Samsung Medical Center, Sungkyunkwan University School of Medicine, Seoul, The Republic of Korea
| | - Jeong-A Lee
- Department of Neurosurgery, Samsung Medical Center, Sungkyunkwan University School of Medicine, Seoul, The Republic of Korea
| | - Kwan Park
- Department of Neurosurgery, Samsung Medical Center, Sungkyunkwan University School of Medicine, Seoul, The Republic of Korea
- Department of Neurosurgery, Konkuk University Medical Center, Konkuk University School of Medicine, Seoul, The Republic of Korea
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19
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Hao W, Cong C, Yuanfeng D, Ding W, Li J, Yongfeng S, Shijun W, Wenhua Y. Multidata Analysis Based on an Artificial Neural Network Model for Long-Term Pain Outcome and Key Predictors of Microvascular Decompression in Trigeminal Neuralgia. World Neurosurg 2022; 164:e271-e279. [PMID: 35490890 DOI: 10.1016/j.wneu.2022.04.089] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/27/2022] [Revised: 04/22/2022] [Accepted: 04/22/2022] [Indexed: 10/18/2022]
Abstract
OBJECTIVE To investigate use of multidata analysis based on an artificial neural network (ANN) to predict long-term pain outcomes after microvascular decompression (MVD) in patients with trigeminal neuralgia (TN) and to explore key predictors. METHODS Perioperative and long-term follow-up multidata of 1041 patients with TN who received MVD surgery at Hangzhou First People's Hospital from March 2013 to May 2018 were collected to construct an ANN model for prediction. The prediction results were compared with the actual follow-up outcomes, and the variables in each input layer were changed to test the effectiveness of ANN and explore the factors that had the greatest impact on prediction accuracy. RESULTS The ANN model could predict the long-term pain outcomes after MVD in patients with TN with an accuracy rate of 95.2% and area under the curve of 0.862. Four factors contributed the most to the predictive performance of the ANN: whether the neurovascular offending site of the trigeminal nerve corresponded the region of facial pain, immediate postoperative pain remission after MVD, degree of nerve compression by culprit vessels, and the type of culprit vessels. After these factors were sequentially removed, the accuracy of the ANN model decreased to 74.5%, 78.6%, 87.2%, and 90.1%, while the area under the curve was 0.705, 0.761, 0.793, and 0.810. CONCLUSIONS The ANN model, constructed using multiple data, predicted long-term pain prognosis after MVD in patients with TN objectively and accurately. The model was able to assess the importance of each factor in the prediction of pain outcome.
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Affiliation(s)
- Wang Hao
- Department of Neurosurgery, Affiliated Hangzhou First People's Hospital, Zhejiang University School of Medicine, Hangzhou, China
| | - Chen Cong
- Department of Neurosurgery, Yiwu Central Hospital, Yiwu, China
| | - Du Yuanfeng
- Department of Neurosurgery, Affiliated Hangzhou First People's Hospital, Zhejiang University School of Medicine, Hangzhou, China
| | - Wang Ding
- Department of Neurosurgery, Affiliated Hangzhou First People's Hospital, Zhejiang University School of Medicine, Hangzhou, China
| | - Jiang Li
- Department of Neurosurgery, Affiliated Hangzhou First People's Hospital, Zhejiang University School of Medicine, Hangzhou, China
| | - Shen Yongfeng
- Department of Neurosurgery, Affiliated Hangzhou First People's Hospital, Zhejiang University School of Medicine, Hangzhou, China
| | - Wang Shijun
- Institute of Physics, Chinese Academy of Sciences, Beijing, China
| | - Yu Wenhua
- Department of Neurosurgery, Affiliated Hangzhou First People's Hospital, Zhejiang University School of Medicine, Hangzhou, China.
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20
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Villalonga JF, Baldoncini M, Pailler JI, Saenz A, Lucifero AG, Luzzi S, Pipolo DO, Campero A. Classification and Management of Pontecerebellar-Petrosal Bridging Veins. World Neurosurg 2022; 160:e481-e486. [PMID: 35074544 DOI: 10.1016/j.wneu.2022.01.054] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/22/2021] [Revised: 01/12/2022] [Accepted: 01/12/2022] [Indexed: 11/18/2022]
Abstract
INTRODUCTION The risks and benefits of coagulating intradural venous elements during a retrosigmoid approach for trigeminal neurovascular decompression has not been accurately established. The objectives of this study are to identify the veins that drain into the superior petrosal sinus, classify them in relation to the suprameatal tubercle and determine the implication of their coagulation. MATERIAL AND METHODS A retrospective study of 3D surgical videos of retrosigmoid approaches for trigeminal neurovascular decompression from the LINT (Laboratory of Neurosurgical Innovations of Tucumán) digital archive was carried out. The veins encountered were classified into 3 groups: retromeatal, meatal and premeatal. The neurosurgical postoperative complication scale proposed by Landriel et al. was utilized to assess complications from venous coagulation. A Grade 0 was added for patients without complications. The STATA 14 program was utilized for statistical analysis. RESULTS The pontocerebellar-petrosal veins of 28 patients who underwent trigeminal decompressive surgery were analyzed. In 7 cases these were found in the retromeatal region; 100% were sacrificed. 11 cases revealed veins within the meatal region; 90,91% were coagulated. Veins in the premeatal region were found in 14 cases; 57,14% were sacrificed. In the postoperative follow-up, 27 patients were grade 0 and 1 patient developed postoperative meningitis (grade Ib complication). No patient suffered vascular complications. CONCLUSION The venous elements identified in trigeminal neurovascular decompressive surgery are variable. We propose classifying them into retromeatal, metal and premeatal groups. Retromeatal and meatal veins can be safely sacrificed for appropriate visualization of the neurovascular conflict. The premeatal venous elements should be coagulated only in justified cases.
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Affiliation(s)
- Juan F Villalonga
- Laboratory of Neurosurgical Innovations of Tucumán, Facultad de Medicina, Universidad Nacional de Tucumán, Tucumán, Argentina; Department of Neurological Surgery, Hospital Padilla, Tucumán, Argentina
| | - Matías Baldoncini
- Laboratory of Microsurgical Neuroanatomy, Second Chair of Gross Anatomy, School of Medicine, University of Buenos Aires, Argentina.
| | - José I Pailler
- Laboratory of Neurosurgical Innovations of Tucumán, Facultad de Medicina, Universidad Nacional de Tucumán, Tucumán, Argentina
| | - Amparo Saenz
- Laboratory of Neurosurgical Innovations of Tucumán, Facultad de Medicina, Universidad Nacional de Tucumán, Tucumán, Argentina
| | - Alice Giotta Lucifero
- Neurosurgery Unit, Department of Clinical-Surgical, Diagnostic and Pediatric Sciences, University of Pavia, Italy
| | - Sabino Luzzi
- Neurosurgery Unit, Department of Clinical-Surgical, Diagnostic and Pediatric Sciences, University of Pavia, Italy; Neurosurgery Unit, Department of Surgical Sciences, Fondazione IRCCS Policlinico San Matteo, Pavia, Italy
| | - Derek O Pipolo
- Laboratory of Neurosurgical Innovations of Tucumán, Facultad de Medicina, Universidad Nacional de Tucumán, Tucumán, Argentina
| | - Alvaro Campero
- Laboratory of Neurosurgical Innovations of Tucumán, Facultad de Medicina, Universidad Nacional de Tucumán, Tucumán, Argentina; Department of Neurological Surgery, Hospital Padilla, Tucumán, Argentina
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21
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Lin J, Mou L, Yan Q, Ma S, Yue X, Zhou S, Lin Z, Zhang J, Liu J, Zhao Y. Automated Segmentation of Trigeminal Nerve and Cerebrovasculature in MR-Angiography Images by Deep Learning. Front Neurosci 2021; 15:744967. [PMID: 34955711 PMCID: PMC8702731 DOI: 10.3389/fnins.2021.744967] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/21/2021] [Accepted: 11/17/2021] [Indexed: 11/29/2022] Open
Abstract
Trigeminal neuralgia caused by paroxysmal and severe pain in the distribution of the trigeminal nerve is a rare chronic pain disorder. It is generally accepted that compression of the trigeminal root entry zone by vascular structures is the major cause of primary trigeminal neuralgia, and vascular decompression is the prior choice in neurosurgical treatment. Therefore, accurate preoperative modeling/segmentation/visualization of trigeminal nerve and its surrounding cerebrovascular is important to surgical planning. In this paper, we propose an automated method to segment trigeminal nerve and its surrounding cerebrovascular in the root entry zone, and to further reconstruct and visual these anatomical structures in three-dimensional (3D) Magnetic Resonance Angiography (MRA). The proposed method contains a two-stage neural network. Firstly, a preliminary confidence map of different anatomical structures is produced by a coarse segmentation stage. Secondly, a refinement segmentation stage is proposed to refine and optimize the coarse segmentation map. To model the spatial and morphological relationship between trigeminal nerve and cerebrovascular structures, the proposed network detects the trigeminal nerve, cerebrovasculature, and brainstem simultaneously. The method has been evaluated on a dataset including 50 MRA volumes, and the experimental results show the state-of-the-art performance of the proposed method with an average Dice similarity coefficient, Hausdorff distance, and average surface distance error of 0.8645, 0.2414, and 0.4296 on multi-tissue segmentation, respectively.
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Affiliation(s)
- Jinghui Lin
- Department of Neurosurgery, Ningbo First Hospital, Ningbo, China
| | - Lei Mou
- Cixi Institute of Biomedical Engineering, Ningbo Institute of Materials Technology and Engineering, Chinese Academy of Sciences, Ningbo, China.,University of Chinese Academy of Sciences, Beijing, China
| | - Qifeng Yan
- Cixi Institute of Biomedical Engineering, Ningbo Institute of Materials Technology and Engineering, Chinese Academy of Sciences, Ningbo, China
| | - Shaodong Ma
- Cixi Institute of Biomedical Engineering, Ningbo Institute of Materials Technology and Engineering, Chinese Academy of Sciences, Ningbo, China
| | - Xingyu Yue
- Cixi Institute of Biomedical Engineering, Ningbo Institute of Materials Technology and Engineering, Chinese Academy of Sciences, Ningbo, China
| | - Shengjun Zhou
- Department of Neurosurgery, Ningbo First Hospital, Ningbo, China
| | - Zhiqing Lin
- Department of Neurosurgery, Ningbo First Hospital, Ningbo, China
| | - Jiong Zhang
- Cixi Institute of Biomedical Engineering, Ningbo Institute of Materials Technology and Engineering, Chinese Academy of Sciences, Ningbo, China
| | - Jiang Liu
- Department of Computer Science and Engineering, Southern University of Science and Technology, Shenzhen, China
| | - Yitian Zhao
- The Affiliated People's Hospital of Ningbo University, Ningbo, China.,Cixi Institute of Biomedical Engineering, Ningbo Institute of Materials Technology and Engineering, Chinese Academy of Sciences, Ningbo, China
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22
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Huang J, Zhan Y, Li Y, Jiang L, Wang K, Wu Z, Xie Y, Shi Q. The Efficacy and Safety of <2 cm Micro-Keyhole Microvascular Decompression for Hemifacial Spasm. Front Surg 2021; 8:685155. [PMID: 34395510 PMCID: PMC8355354 DOI: 10.3389/fsurg.2021.685155] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/25/2021] [Accepted: 06/21/2021] [Indexed: 11/30/2022] Open
Abstract
Objective: Microvascular decompression (MVD) surgery has been accepted as a minimally invasive surgical modality for the treatment of hemifacial spasm (HFS). However, the size of the bone window does not match the concept of minimally invasive. This study is aimed at evaluating the efficacy and safety of <2 cm micro-keyhole MVD. Methods: A total of 148 patients with HFS diagnosed in the First Affiliated Hospital of Chongqing Medical University from January 1, 2019, to July 1, 2020, who underwent MVD in the neurosurgery department of the hospital were collected. Surgery was performed by a retrosigmoid keyhole approach with the bone hole diameter <2 cm, which was named micro-keyhole MVD. The efficacy and safety of the micro-keyhole MVD were evaluated by statistical analysis of the efficacy of the micro-keyhole MVD and the incidence of postoperative complications. Results: The effect of micro-keyhole MVD was satisfying (cure or partial remission) in 97.2% (n = 144). The failure and recurrence rates were 2.7% (n = 4) and 0.6% (n = 1), respectively. Among them, immediate facial palsy, delayed facial palsy, hearing loss, and cerebrospinal fluid (CSF) leakage were found in 0.6% (n = 1), 8.1% (n = 12), 4.7% (n = 7), and 1.3% (n = 2). Only one patient developed cerebellar infarction, which was complicated by “moyamoya disease.” The micro-keyhole MVD in the treatment of HFS can achieve a high remission rate and reduce the incidence of surgical complications. Conclusion: Micro-keyhole MVD is a safe and effective minimally invasive treatment for HFS. This technique does not increase the incidence of cranial nerve injury. Meanwhile, it reduces the incidence of CSF leakage and hearing loss (HL).
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Affiliation(s)
- Jiashang Huang
- Department of Neurosurgery, The First Affiliated Hospital of Chongqing Medical University, Chongqing, China
| | - Yan Zhan
- Department of Neurosurgery, The First Affiliated Hospital of Chongqing Medical University, Chongqing, China
| | - Yi Li
- Department of Rehabilitation Medicine, The First Affiliated Hospital of Chongqing Medical University, Chongqing, China
| | - Li Jiang
- Department of Neurosurgery, The First Affiliated Hospital of Chongqing Medical University, Chongqing, China
| | - Kuan Wang
- Department of Neurosurgery, The First Affiliated Hospital of Chongqing Medical University, Chongqing, China
| | - Zhimin Wu
- Department of Neurosurgery, The First Affiliated Hospital of Chongqing Medical University, Chongqing, China
| | - Yanfeng Xie
- Department of Neurosurgery, The First Affiliated Hospital of Chongqing Medical University, Chongqing, China
| | - Quanhong Shi
- Department of Neurosurgery, The First Affiliated Hospital of Chongqing Medical University, Chongqing, China
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Chang B, Tang Y, Wei X, Li S. A New Application of Gelatin Sponge in the Treatment of Hemifacial Spasm by Microvascular Decompression: A Technical Note. J Neurol Surg A Cent Eur Neurosurg 2021; 83:183-186. [PMID: 34010981 DOI: 10.1055/s-0040-1720994] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
Abstract
OBJECTIVES Microvascular decompression (MVD) for facial nerve remains the highly efficient hemifacial spasm (HFS) treatment. Nonetheless, a variety of cases have poor response to MVD. Using Teflon plus gelatin sponge in MVD seems to be a good solution. No existing study has examined the efficacy of using Teflon combined with gelatin sponge during MVD for HFS. Therefore, this study aimed to compare the efficacy of Teflon combined with gelatin sponge in HFS patients relative to that of Teflon alone. PATIENTS AND METHODS We retrospectively compared the follow-up results of patients treated with Teflon and gelatin sponge with those treated with Teflon alone previously. Six hundred and eighty-eight primary HFS patients undergoing surgery from January 2010 to January 2018 were retrospectively analyzed. Three hundred and forty-seven cases received simple Teflon, while 342 cases underwent Teflon combined with gelatin sponge. RESULTS In the Teflon plus gelatin sponge group, the incidences of facial palsy and hearing loss at 1 day, 1 year, and 2 years following surgery was significantly lower than those in the simple Teflon group. Differences in the success rates between Teflon plus gelatin sponge and the simple Teflon group were not statistically significant at 1 day, 1 year, and 2 years after surgery. The recurrence rate in the Teflon plus gelatin sponge group was significantly lower at 2 years. CONCLUSION For HFS patients undergoing MVD, using Teflon plus gelatin sponge can remarkably reduce the incidence of recurrence, facial palsy, and hearing loss compared with those using Teflon alone.
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Affiliation(s)
- Bowen Chang
- Department of Neurosurgery, Shanghai Jiaotong University School of Medicine Xinhua Hospital, Shanghai, China
| | - Yinda Tang
- Department of Neurosurgery, Shanghai Jiaotong University School of Medicine Xinhua Hospital, Shanghai, China
| | - Xiangyu Wei
- Department of Neurosurgery, Shanghai Jiaotong University School of Medicine Xinhua Hospital, Shanghai, China
| | - Shiting Li
- Department of Neurosurgery, Shanghai Jiaotong University School of Medicine Xinhua Hospital, Shanghai, China
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Yan X, Ma C, Gu J, Qu J, Quan J, Zhang X, Song Q, Zhou L. Facial root entry/exit zone contact in microvascular decompression for hemifacial spasm: a historical control study. ANNALS OF TRANSLATIONAL MEDICINE 2021; 9:834. [PMID: 34164468 PMCID: PMC8184434 DOI: 10.21037/atm-20-7985] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
Background Microvascular decompression (MVD) surgery is recognized as an effective treatment for hemifacial spasm (HFS). In MVD surgery, biocompatible materials are usually implanted in situ at the neurovascular conflict site in contact with the offending vessel and the facial root entry/exit zone (REZ). Another procedure of implanting the materials between the responsible vessel and the supraolivary fossa without REZ contact has also been applied. However, it is unclear whether there are any differences between these 2 procedures (REZ-contact procedure vs. REZ-non-contact procedure). Therefore, the aim of the present study was to investigate the effect of the placement of implants (contacting or not contacting the facial REZ) on surgical operations and outcomes Methods A historical control study was performed. Clinical data of HFS patients who underwent MVD between December 2016 and November 2018 were reviewed and categorized into 1 group with the REZ-contact procedure or another group with the REZ-non-contact procedure according to the decompression strategy they received. Clinical demographics, postoperative outcomes, and complications were collected and compared between the two groups. Results Not all patients are suitable for REZ-non-contact decompression. A total of 205 patients were enrolled: 112 in the REZ-contact group and 93 in the REZ-non-contact group. In the early postoperative period, the complete cure rate in the REZ-non-contact group was significantly higher than that in the REZ-contact group. The reappearance and partial relief rates in the REZ-contact group were significantly higher than those in the REZ-non-contact group. The incidence of short-term neurological complications, especially hearing loss and transient facial palsy, was lower in the REZ-non-contact group (P=0.043). But for long-term follow-up of >1 year, there was no significant difference between the two groups in either curative effects or neurological complications. The operating time for REZ-non-contact decompression was relatively longer than for REZ-contact decompression (P=0.000). An unexpected subdural hemorrhage occurred in the REZ-non-contact group. Conclusions REZ-non-contact decompression procedure showed superiority only in short-term postoperative outcomes. Given its limitations and potential risks, the REZ-non-contact procedure can be used as an alternative individualized strategy in MVD, and there is no need to pursue REZ-non-contact during the decompression.
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Affiliation(s)
- Xianxia Yan
- Department of Neurosurgery, the Second Affiliated Hospital of Xi'an Jiaotong University, Xi'an, China
| | - Chengwen Ma
- Department of Neurosurgery, the Second Affiliated Hospital of Xi'an Jiaotong University, Xi'an, China
| | - Junxiang Gu
- Department of Neurosurgery, the Second Affiliated Hospital of Xi'an Jiaotong University, Xi'an, China
| | - Jianqiang Qu
- Department of Neurosurgery, the Second Affiliated Hospital of Xi'an Jiaotong University, Xi'an, China
| | - Junjie Quan
- Department of Neurosurgery, the Second Affiliated Hospital of Xi'an Jiaotong University, Xi'an, China
| | - Xi Zhang
- Department of Neurosurgery, the Second Affiliated Hospital of Xi'an Jiaotong University, Xi'an, China
| | - Qin Song
- Department of Neurosurgery, the Second Affiliated Hospital of Xi'an Jiaotong University, Xi'an, China
| | - Le Zhou
- Department of Neurosurgery, the Second Affiliated Hospital of Xi'an Jiaotong University, Xi'an, China
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Liu M, Li Y, Zhong J, Xia L, Dou N. The effect of IL-6/Piezo2 on the trigeminal neuropathic pain. Aging (Albany NY) 2021; 13:13615-13625. [PMID: 33893246 PMCID: PMC8202871 DOI: 10.18632/aging.202887] [Citation(s) in RCA: 13] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/02/2020] [Accepted: 03/04/2021] [Indexed: 01/27/2023]
Abstract
The nature of trigeminal neuropathic pain (TN) attacks is regarded as the ignition of ectopic action potentials from the trigeminal root following vascular compression, which seemed to be related to transmembrane proteins and inflammation factors. This study focused on the mechanosensitive channel Piezo2 and cytokine IL-6. The chronic constriction injury of infraorbital nerve in SD rats was used to establish the TN model. The trigeminal ganglion was then achieved to perform immunocytochemistry studies. A significant upregulation of Piezo2 and IL-6 was showed in the TN model rats. The Piezo2 positive accounted for 72.3±9.5% in those IL-6 positive neurons. The Piezo2 co-localized with CGRP, IB4 and NF-200 but not with GFAP, which implied that it was expressed in both the C-type and the A-type neurons. After administration of GsMTx4 or anti-rat IL-6 antibody in the TN model, the dynamic allodynia and pinprick hyperalgesia scores as well as the mechanical threshold changed significantly. In the sham-operation rates, with local administration of IL-6, an upregulation of Piezo2 was also exhibited. Our study demonstrated that the up-regulation of Piezo2 in the pain afferent neurons following trigeminal nerve injury may play a role in the development of the neuralgia. Meanwhile, the expression of Piezo2 may be modulated by inflammatory cytokines, such as IL-6.
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Affiliation(s)
- MingXing Liu
- Department of Neurosurgery, Qingdao Municipal Hospital, Qingdao 266000, China
| | - Yan Li
- Department of Neurosurgery, Qingdao Municipal Hospital, Qingdao 266000, China
| | - Jun Zhong
- Department of Neurosurgery, XinHua Hospital, The Cranial Nerve Disease Center of Shanghai, Shanghai JiaoTong University School of Medicine, Shanghai 200092, China
| | - Lei Xia
- Department of Neurosurgery, XinHua Hospital, The Cranial Nerve Disease Center of Shanghai, Shanghai JiaoTong University School of Medicine, Shanghai 200092, China
| | - NingNing Dou
- Department of Neurosurgery, XinHua Hospital, The Cranial Nerve Disease Center of Shanghai, Shanghai JiaoTong University School of Medicine, Shanghai 200092, China
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Zawy Alsofy S, Welzel Saravia H, Nakamura M, Ewelt C, Lewitz M, Sakellaropoulou I, Sarkis HM, Fortmann T, Schipmann S, Suero Molina E, Santacroce A, Salma A, Stroop R. Virtual reality-based evaluation of neurovascular conflict for the surgical planning of microvascular decompression in trigeminal neuralgia patients. Neurosurg Rev 2021; 44:3309-3321. [PMID: 33586035 DOI: 10.1007/s10143-021-01500-w] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/27/2020] [Revised: 12/13/2020] [Accepted: 02/08/2021] [Indexed: 12/22/2022]
Abstract
OBJECTIVE Trigeminal neuralgia (TN) is a lightning bolt of violent, electrifying, and stinging pain, often secondary to the neurovascular conflict (NVC). The vessels involved in NVC are mostly arteries and rarely veins. Evaluation of NVC in the deep infratentorial region is inseparably connected with cranial imaging. We retrospectively analyzed the potential influence of three-dimensional (3D) virtual reality (VR) reconstructions compared to conventional magnetic resonance imaging (MRI) scans on the evaluation of NVC for the surgical planning of microvascular decompression in patients with TN. METHODS Medical files were retrospectively analyzed regarding patient- and disease-related data. Preoperative MRI scans were retrospectively visualized via VR software to detect the characteristics of NVC. A questionnaire of experienced neurosurgeons evaluated the influence of VR visualization technique on identification of anatomical structures involved in NVC and on surgical strategy. RESULTS Twenty-four patients were included and 480 answer sheets were evaluated. Compared to conventional MRI, image presentation using 3D-VR modality significantly influenced the identification of the affected trigeminal nerve (p = 0.004), the vascular structure involved in the NVC (p = 0.0002), and the affected side of the trigeminal nerve (p = 0.005). CONCLUSIONS In patients with TN caused by NVC, the reconstruction of conventional preoperative MRI scans and the spatial and anatomical presentation in 3D-VR models offers the possibility of increased understanding of the anatomy and even more the underlying pathology, and thus influences operation planning and strategy.
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Affiliation(s)
- Samer Zawy Alsofy
- Department of Medicine, Faculty of Health, Witten/Herdecke University, Witten, Germany. .,Department of Neurosurgery, St. Barbara-Hospital, Academic Hospital of Westfälische Wilhelms-University Münster, Hamm, Germany.
| | - Heinz Welzel Saravia
- Department of Neurosurgery, St. Barbara-Hospital, Academic Hospital of Westfälische Wilhelms-University Münster, Hamm, Germany
| | - Makoto Nakamura
- Department of Neurosurgery, Academic Hospital Köln-Merheim, Witten/Herdecke University, Köln, Germany
| | - Christian Ewelt
- Department of Neurosurgery, St. Barbara-Hospital, Academic Hospital of Westfälische Wilhelms-University Münster, Hamm, Germany
| | - Marc Lewitz
- Department of Neurosurgery, St. Barbara-Hospital, Academic Hospital of Westfälische Wilhelms-University Münster, Hamm, Germany
| | - Ioanna Sakellaropoulou
- Department of Neurosurgery, St. Barbara-Hospital, Academic Hospital of Westfälische Wilhelms-University Münster, Hamm, Germany
| | - Hraq Mourad Sarkis
- Department of Neurosurgery, St. Barbara-Hospital, Academic Hospital of Westfälische Wilhelms-University Münster, Hamm, Germany
| | - Thomas Fortmann
- Department of Neurosurgery, St. Barbara-Hospital, Academic Hospital of Westfälische Wilhelms-University Münster, Hamm, Germany
| | | | - Eric Suero Molina
- Department of Neurosurgery, University Hospital Münster, Münster, Germany
| | - Antonio Santacroce
- Department of Neurosurgery, St. Barbara-Hospital, Academic Hospital of Westfälische Wilhelms-University Münster, Hamm, Germany.,Department of Neurosurgery, Eberhard-Karls-University, Tübingen, Germany
| | - Asem Salma
- Department of Neurosurgery, St. Rita's Neuroscience Institute, Lima, Ohio, USA
| | - Ralf Stroop
- Department of Medicine, Faculty of Health, Witten/Herdecke University, Witten, Germany
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Yue Y, Zhao ZR, Liu DC, Liu HJ, Lu DL, Zhang H, Jin P. Life-threatening complications after microvascular decompression procedure: Lessons from a consecutive series of 596 patients. J Clin Neurosci 2021; 86:64-70. [PMID: 33775349 DOI: 10.1016/j.jocn.2021.01.014] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/30/2020] [Revised: 12/11/2020] [Accepted: 01/11/2021] [Indexed: 10/22/2022]
Abstract
The microvascular decompression procedure (MVD) is widely utilized on patients with neurovascular compression syndromes, such as trigeminal neuralgia, hemifacial spasm and glossopharyngeal neuralgia, which have failed medical therapy. However, surgical complications are an ongoing problem. We retrospectively reviewed a total of 596 patients undergoing MVD in the Affiliated Hospital of Qingdao University from January 2008 to December 2018. Furthermore, we discussed the cases with life-threatening complications to determine the potential causes, aiming to achieve the goal of safer microvascular decompression. There were seven cases with life-threatening complications. Of those complications, one was cerebellar infarction with acute hydrocephalus, one was infarction of the cerebellum and the brain stem with acute hydrocephalus and serious intracranial infection, two were cerebellar haematoma, one was multiple haemorrhage with acute hydrocephalus, one was supratentorial subdural haematoma, and one was cerebellar swelling with acute hydrocephalus. After therapy, one patient died, one was in a persistent vegetative state, and five were discharged from the hospital upon recovery. In brief, MVD is a safe operation, and life-threatening complications accompanying MVD are rare, but require attention. The causes of some life-threatening complications are still not completely clear. Surgeons should continuously improve surgical techniques and perioperative care to reduce potential risks.
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Affiliation(s)
- Yong Yue
- Department of Neurosurgery, Mianyang Central Hospital, Mianyang, Sichuan Province, China
| | - Zhen-Ran Zhao
- Department of Neurosurgery, Affiliated Hospital of Qingdao University, Qingdao, Shandong Province, China
| | - De-Cai Liu
- Department of Neurosurgery, Affiliated Hospital of Qingdao University, Qingdao, Shandong Province, China
| | - Heng-Jian Liu
- Department of Neurosurgery, Affiliated Hospital of Qingdao University, Qingdao, Shandong Province, China
| | - Dong-Lin Lu
- Department of Neurosurgery, Affiliated Hospital of Qingdao University, Qingdao, Shandong Province, China
| | - Heng Zhang
- Department of Neurosurgery, Langzhong People's Hospital, Langzhong,Sichuan Province, China
| | - Peng Jin
- Department of Neurosurgery, Affiliated Hospital of Qingdao University, Qingdao, Shandong Province, China.
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Lee JH, Lee JM, Choi CH. Personal experience with microvascular decompression and partial sensory rhizotomy for trigeminal neuralgia. Yeungnam Univ J Med 2020; 38:202-207. [PMID: 33222427 PMCID: PMC8225491 DOI: 10.12701/yujm.2020.00745] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/30/2020] [Accepted: 10/07/2020] [Indexed: 11/21/2022] Open
Abstract
Background Trigeminal neuralgia (TN) is a severe, paroxysmal pain in the distribution of the fifth cranial nerve. Microvascular decompression (MVD) is the most widely used surgical treatment for TN. We undertook this study to analyze the effects of and complications of MVD and to refine the surgical procedure for treating TN. Methods A total of 88 patients underwent for TN underwent surgery at our hospital. Among them, 77 patients underwent MVD alone, and 11 underwent partial sensory rhizotomy (PSR) with or without MVD. The medical records of these patients were retrospectively analyzed for patient characteristics, clinical results, offending vessels, and complications if any. Results The mean follow-up duration was 43.2 months (range, 3–216 months). The most common site of pain was V2+V3 territory (n=27), followed by V2 (n=25) and V3 (n=23). The most common offending vessels were the superior cerebellar artery and anterior inferior cerebellar artery in that order. The overall rate of postoperative complications was 46.1%; however, most complications were transient. There were two cases of permanent partial hearing disturbance. In the MVD alone group, the cure rate was 67.5%, and the improvement rate was 26.0%. Among 11 patients who underwent PSR with or without MVD, the cure rate was 50.0%, and the improvement rate was 30.0%. Conclusion The clinical results of MVD were satisfactory. Although the outcomes of PSR were not as favorable as those of pure MVD in this study, PSR can be considered in cases where there is no significant vascular compressive lesion or uncertainty of the causative vessel at the surgery.
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Affiliation(s)
- Jung Hwan Lee
- Department of Neurosurgery, Pusan National University Hospital, Busan, Korea
| | - Jae Meen Lee
- Department of Neurosurgery, Pusan National University Hospital, Busan, Korea
| | - Chang Hwa Choi
- Department of Neurosurgery, Pusan National University Hospital, Busan, Korea
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Zhong J. Letter to the Editor Regarding "Microvascular Decompression of the Trigeminal Nerve with Petrous Sling Technique: Surgical Video". World Neurosurg 2020; 141:560-561. [PMID: 32871732 DOI: 10.1016/j.wneu.2020.06.124] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/14/2020] [Accepted: 06/16/2020] [Indexed: 11/27/2022]
Affiliation(s)
- Jun Zhong
- Department of Neurosurgery, XinHua Hospital (The Cranial Nerve Disorder Center of Shanghai), Shanghai JiaoTong University School of Medicine, Shanghai, China.
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Liu MX, Zhong J, Xia L, Dou NN, Shi J. Treatment of Trigeminal Neuralgia with "Microvascular Decompression Plus" Technique. J Neurol Surg B Skull Base 2020; 82:e295-e299. [PMID: 34306952 DOI: 10.1055/s-0040-1710520] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/10/2019] [Accepted: 03/15/2020] [Indexed: 10/24/2022] Open
Abstract
Objective Although microvascular decompression (MVD) has been widely accepted as an effective treatment of trigeminal neuralgia (TN), some patients have not been cured. To improve the postoperative outcome, the surgical procedure should be further refined. Design This is a retrospective study. Setting Present study conducted at a cranial nerve disorder center. Participants Clinical data were collected from patients with TN who had undergone surgery in our center, including 685 who had undergone traditional MVD and 576 who had undergone the "MVD plus" procedure, in which any vessel attached to the trigeminal nerve was freed away ("nerve-combing"), which was followed by intraoperative neurolysis. Main Outcome Measures Postoperative outcomes and complications in the two groups were compared. Results Among patients who underwent traditional MVD, the rates of immediate relief and 1-year relief were 89.9 and 86.9%, respectively; among patients who underwent MVD plus group, these rates were 95.1 and 94.6%, respectively ( p = 0.05). Patients who underwent MVD plus initially exhibited a higher rate of facial numbness ( p < 0.05), but this finding decreased over time and reached the same level as that in the traditional MVD group within 3 months ( p > 0.05). Conclusion Sufficient MVD with nerve-combing for the treatment of TN may produce a high rate of cure with less recurrence.
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Affiliation(s)
- Ming-Xing Liu
- Department of Neurosurgery, Qingdao Municipal Hospital, Qingdao, People's Republic of China
| | - Jun Zhong
- Department of Neurosurgery, XinHua Hospital, Shanghai JiaoTong University School of Medicine, Shanghai, People's Republic of China
| | - Lei Xia
- Department of Neurosurgery, XinHua Hospital, Shanghai JiaoTong University School of Medicine, Shanghai, People's Republic of China
| | - Ning-Ning Dou
- Department of Neurosurgery, XinHua Hospital, Shanghai JiaoTong University School of Medicine, Shanghai, People's Republic of China
| | - Juanhong Shi
- Department of Pathology, Tongji Hospital, Shanghai Tongji University, Shanghai, People's Republic of China
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Liu M, Zhong J. Mechanism underlying cranial nerve rhizopathy. Med Hypotheses 2020; 142:109801. [PMID: 32413700 DOI: 10.1016/j.mehy.2020.109801] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/03/2020] [Revised: 04/09/2020] [Accepted: 05/02/2020] [Indexed: 12/27/2022]
Abstract
The cranial nerve rhizophathy, commonly presented with trigeminal neuralgia (TN) or hemifacial spasm (HFS), is a sort of hyperexcitability disorders with higher incidence in senior Asian. In this paper, a novel hypothesis on the pathogenesis is proposed and with which some clinical phenomena are explained. In those with crowded cerebellopontine angle in anatomy, the cranial nerve root and surrounding vessel are getting closer and closer to each other with aging and finally the neurovascular conflict happens. As the interfacial friction associated with pulse, the nerve incurs demyelination. Since this pathological change develops to a certain degree, some transmembrane proteins emerge from the nerve due to a series of signaling pathway mediated by inflammatory cytokines. Among them, voltage-gated (Nav1.3) and mechanosensitive (Piezo2) ion channels may play the important role. With pulsatile compressions, the Piezo2 drives the resting potential toward depolarization forming a state of subthreshold membrane potential oscillation. Under this condition, just an appropriate pressure can make the membrane potential easy to reach threshold and activate the sodium channel, eventually generating conductible action potentials from the axon. When these ectopic action potentials propagate to the central nerve system, an illusion of sharp pain is perceived; while to the nerve-muscle junctions, an attack of irregular muscle constriction occurs. This hypothesis can well explain the symptomatic manifestation of paroxysmal attacks aroused by emotions. When we get nervous or excited, our heart rate and blood pressure alter correspondingly, which may give rise to "a just right pressure" - with specific frequency, amplitude and angle - impacting the suffered nerve to reach the threshold of impulse ignition. After a successful microvascular decompression surgery, the trigger is gone (there is no compression anymore) and the symptom is alleviated. While the postoperative recurrence could be attributable to Teflon granuloma development if had been placed improperly - for this nerve root has been susceptible no matter to arteries or to neoplasms. Besides, it may illustrate the clinical phenomenon that secondary TN or HFS cases are seldom caused by schwannoma: with a proliferative sheath, the nerve root is actually insulated. By contrast, not all neurovascular contacts can lead to the onset: it demands an exclusive extent of demyelination firstly.
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Affiliation(s)
- Mingxing Liu
- Dept. Neurosurgery, QingDao Municipal Hospital, No.1 Jiaozhou Rd., Qingdao 266000, China.
| | - Jun Zhong
- Dept. Neurosurgery, XinHua Hospital, Shanghai JiaoTong University School of Medicine, 1665 KongJiang Rd., Shanghai 200092, China.
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Hao YB, Zhang WJ, Chen MJ, Chai Y, Zhang WH, Wei WB. Sensitivity of magnetic resonance tomographic angiography for detecting the degree of neurovascular compression in trigeminal neuralgia. Neurol Sci 2020; 41:2947-2951. [PMID: 32346806 PMCID: PMC7479011 DOI: 10.1007/s10072-020-04419-0] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/07/2019] [Accepted: 04/13/2020] [Indexed: 11/28/2022]
Abstract
PURPOSE Neurovascular compression (NVC) is hypothesized to be the main pathogenic factor of trigeminal neuralgia (TN). Microvascular decompression (MVD) has become a popular surgery for TN, and the success rate depends on the degree of NVC. As the routine examination before MVD, magnetic resonance tomographic angiography (MRTA) shows high sensitivity for detecting NVC. However, there are no reports on the sensitivity of MRTA for assessing the degree of NVC. METHODS This study aimed to evaluate the sensitivity of MRTA for determining the degree of NVC by comparing preoperative MRTA and intraoperative endoscopy findings. A total of 480 patients who suffered from TN and underwent MVD were included. Their preoperative MRTA and intraoperative endoscopy findings were reviewed. The kappa test was used to identify similarities between the MRTA and endoscopy findings. RESULTS The degree of NVC on preoperative MRTA was similar to that on endoscopy (kappa = 0.770). The number of offending vessels according to preoperative MRTA was coincident with that according to endoscopy (kappa = 0.722). CONCLUSION MRTA had high sensitivity for detecting not only the presence of NVC but also the degree of NVC.
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Affiliation(s)
- Yun-Bo Hao
- Department of Oral and Maxillofacial Surgery, College of Stomatology, Ninth People's Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Wei-Jie Zhang
- Department of Oral and Maxillofacial Surgery, College of Stomatology, Ninth People's Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China.
| | - Min-Jie Chen
- Department of Oral and Maxillofacial Surgery, College of Stomatology, Ninth People's Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China.
| | - Ying Chai
- Department of Oral and Maxillofacial Surgery, College of Stomatology, Ninth People's Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Wen-Hao Zhang
- Department of Oral and Maxillofacial Surgery, College of Stomatology, Ninth People's Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Wen-Bin Wei
- Department of Oral and Maxillofacial Surgery, College of Stomatology, Ninth People's Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China
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Liu MX, Zhong J, Xia L, Dou NN, Li ST. IL-6 contributes to Na v1.3 up-regulation in trigeminal nerve following chronic constriction injury. Neurol Res 2020; 42:504-514. [PMID: 32279611 DOI: 10.1080/01616412.2020.1747719] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/11/2023]
Abstract
Background: To verify the hypothesis that the nature of trigeminal neuralgia (TN) is an ectopic impulse induced by sodium channel modulated by cytokines, we conducted an animal study using the infraorbital nerve chronic constriction injury (CCI) model in rats.Method: The expression of Nav1.3 or IL-6 in the infraorbital nerve (ION) and trigeminal ganglion (TG) were detected by western blot and immunocytochemistry after administration of antisense oligodeoxynucleotide sequence (AS), IL-6 or Anti-IL-6.Results: With intrathecal administration of AS or mismatch oligodeoxynucleotide sequence (MM) in the CCI rats, the Nav1.3-IR in ION and TG accounted for 2.2 ± 0.51% and 8.5 ± 3.1% in AS+CCI group vs. 6.9 ± 1.3% and 38.7 ± 4.8% in MM+CCI group (p < 0.05), respectively. While with local administration of IL-6 in those with sham operation, it accounted for 7.4 ± 2.1% and 45.5 ± 3.4% in IL-6+ sham group vs. 1.9 ± 0.67% and 8.1 ± 1.3% in vehicle+sham group (p < 0.05); with local administration of anti-IL-6 in CCI rats, 4.5 ± 0.78% and 32.1 ± 9.6% in Anti-IL-6+ CCI group vs 8.9 ± 2.1% and 61.4 ± 11.2% in vehicle+CCI group (p < 0.05).Discussion: We believe that the emergence of Nav1.3 from the compressed trigeminal nerve might be an important structural basis for the development of the ectopic excitability on the axon and IL-6 may play a role of necessary precondition.
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Affiliation(s)
- Ming-Xing Liu
- Department of Neurosurgery, Qingdao Municipal Hospital, Qingdao, China
| | - Jun Zhong
- Department of Neurosurgery, XinHua Hospital (The Cranial Nerve Disease Center of Shanghai), Shanghai JiaoTong University School of Medicine, Shanghai, China
| | - Lei Xia
- Department of Neurosurgery, XinHua Hospital (The Cranial Nerve Disease Center of Shanghai), Shanghai JiaoTong University School of Medicine, Shanghai, China
| | - Ning-Ning Dou
- Department of Neurosurgery, XinHua Hospital (The Cranial Nerve Disease Center of Shanghai), Shanghai JiaoTong University School of Medicine, Shanghai, China
| | - Shi-Ting Li
- Department of Neurosurgery, XinHua Hospital (The Cranial Nerve Disease Center of Shanghai), Shanghai JiaoTong University School of Medicine, Shanghai, China
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Shi J, Qian Y, Han W, Dong B, Mao Y, Cao J, Guan W, Zhou Q. Risk Factors for Outcomes After Microvascular Decompression for Trigeminal Neuralgia. World Neurosurg 2020; 136:e559-e566. [DOI: 10.1016/j.wneu.2020.01.082] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/21/2019] [Revised: 01/10/2020] [Accepted: 01/11/2020] [Indexed: 01/21/2023]
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Blue R, Li C, Spadola M, Saylany A, McShane B, Lee JYK. Complication Rates During Endoscopic Microvascular Decompression Surgery Are Low With or Without Petrosal Vein Sacrifice. World Neurosurg 2020; 138:e420-e425. [PMID: 32145425 DOI: 10.1016/j.wneu.2020.02.142] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/09/2020] [Revised: 02/21/2020] [Accepted: 02/22/2020] [Indexed: 10/24/2022]
Abstract
OBJECTIVE Endoscopic-microvascular decompression (E-MVD) is a well-described treatment for trigeminal neuralgia (TGN), but there has been debate on the safety of intraoperative sacrifice of the petrosal vein (PV) due to concern for subsequent venous insufficiency. Our objective was to investigate the risk of PV sacrifice during E-MVD in TGN and subsequent postoperative complications and pain outcomes. METHODS 5 five-year review yielded 201 patients who underwent MVD for TGN. PV sacrifice, vascular compressive anatomy, and postoperative complications attributable to venous insufficiency were analyzed. Preoperative and postoperative pain outcomes were analyzed. RESULTS PV was sacrificed in 118 of 201 (59%) of patients, with 43 of 201 (21%) patients undergoing partial sacrifice versus 75 of 201 (37%) with complete sacrifice. No cases of venous infarction, cerebellar swelling, or fatal complications were noted in either cohort. Non-neurologic complications occurred in 1.69% (2 of 118) of patients with PV sacrifice and 0% (0 of 83) of patients with PV preservation. Neurologic deficits (facial palsy, conductive hearing loss, gait instability, memory deficit) occurred in equal proportions in PV preservation and sacrifice groups (2.41% vs. 1.69%) Overall, 87.3% (145 of 166) patients reported their pain as "very much improved" or "much improved" at 1 month, and no difference between groups was identified. CONCLUSIONS This study did not find higher complication rates in patients undergoing petrosal vein sacrifice during E-MVD for trigeminal neuralgia. In this series where petrosal vein was sacrificed only 59% of the time, it appears to be a safe technique, but larger studies will be needed to determine true incidence of complications after PV sacrifice.
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Affiliation(s)
- Rachel Blue
- Department of Neurosurgery, Hospital of the University of Pennsylvania, Philadelphia, Pennsylvania, USA.
| | - Carrie Li
- Department of Neurosurgery, Hospital of the University of Pennsylvania, Philadelphia, Pennsylvania, USA; Perelman School of Medicine, University of Pennsylvania, Philadelphia, Pennsylvania, USA
| | - Michael Spadola
- Department of Neurosurgery, Hospital of the University of Pennsylvania, Philadelphia, Pennsylvania, USA
| | - Anissa Saylany
- Department of Neurosurgery, Hospital of the University of Pennsylvania, Philadelphia, Pennsylvania, USA
| | - Brendan McShane
- Department of Neurosurgery, Hospital of the University of Pennsylvania, Philadelphia, Pennsylvania, USA
| | - John Y K Lee
- Department of Neurosurgery, Hospital of the University of Pennsylvania, Philadelphia, Pennsylvania, USA
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Liu R, Deng Z, Zhang L, Liu Y, Wang Z, Yu Y. The Long-Term Outcomes and Predictors of Microvascular Decompression with or without Partial Sensory Rhizotomy for Trigeminal Neuralgia. J Pain Res 2020; 13:301-312. [PMID: 32104052 PMCID: PMC7014959 DOI: 10.2147/jpr.s225188] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/30/2019] [Accepted: 01/17/2020] [Indexed: 11/23/2022] Open
Abstract
Purpose Microvascular decompression (MVD) and MVD combined with partial sensory rhizotomy (PSR) are effective surgical treatments for idiopathic trigeminal neuralgia (TN). The aim of this study was to compare the long-term outcomes of both MVD and MVD+PSR for the treatment of TN and to identify the factors that may influence the long-term outcomes after MVD or MVD+PSR. Patients and Methods From March 2009 to December 2017, 99 patients with idiopathic TN who underwent MVD or MVD+PSR in our hospital (40 MVD, 59 MVD+PSR) were included in the study. The indications for MVD+PSR were as follows: vessels only contacted the nerve root, absence of arterial conflict, or failing to completely decompress from the arteries or veins. All patients were treated by one neurosurgeon and were followed up for at least 1 year. The outcomes were assessed with the Barrow Neurological Institute (BNI) Pain Intensity Scale. Results The average follow-up duration was 63.0 months (range, 13.2-118.8 months). Patients in the MVD group were younger than those in the MVD+PSR group (55.1 years and 60.5 years, respectively, P=0.012). A total of 62.5% of the patients in the MVD group and 69.5% of the patients in the MVD+PSR group had favorable long-term outcomes. The Kaplan-Meier survival analysis showed no significant difference in long-term outcomes between the two groups (P=0.202). No factors were associated with long-term outcomes after MVD. For MVD+PSR, a long duration of the disease (odds ratio (OR) 6.967, P=0.016) was associated with unfavorable long-term outcomes, whereas pure arterial compression (OR 0.131, P=0.013) was associated with favorable long-term outcomes. Conclusion For patients who are not suitable to undergo pure MVD, MVD+PSR can be used as an effective alternative. For MVD+PSR, patients with a long duration of symptoms may have poor long-term outcomes, while patients with pure arterial compression may have favorable long-term outcomes.
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Affiliation(s)
- Ruiquan Liu
- Graduate School of Peking Union Medical College, Chinese Academy of Medical Sciences, Beijing, People's Republic of China.,Department of Neurosurgery, China-Japan Friendship Hospital, Beijing, People's Republic of China
| | - Zhu Deng
- Graduate School of Peking Union Medical College, Chinese Academy of Medical Sciences, Beijing, People's Republic of China.,Department of Neurosurgery, China-Japan Friendship Hospital, Beijing, People's Republic of China
| | - Li Zhang
- Graduate School of Peking Union Medical College, Chinese Academy of Medical Sciences, Beijing, People's Republic of China.,Department of Neurosurgery, China-Japan Friendship Hospital, Beijing, People's Republic of China
| | - Yin Liu
- Department of Neurosurgery, China-Japan Friendship Hospital, Beijing, People's Republic of China.,Peking University Health Science Center, Beijing, People's Republic of China
| | - Zheng Wang
- Department of Neurosurgery, China-Japan Friendship Hospital, Beijing, People's Republic of China.,Peking University Health Science Center, Beijing, People's Republic of China
| | - Yanbing Yu
- Graduate School of Peking Union Medical College, Chinese Academy of Medical Sciences, Beijing, People's Republic of China.,Department of Neurosurgery, China-Japan Friendship Hospital, Beijing, People's Republic of China
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Holste K, Chan AY, Rolston JD, Englot DJ. Pain Outcomes Following Microvascular Decompression for Drug-Resistant Trigeminal Neuralgia: A Systematic Review and Meta-Analysis. Neurosurgery 2020; 86:182-190. [PMID: 30892607 PMCID: PMC8253302 DOI: 10.1093/neuros/nyz075] [Citation(s) in RCA: 87] [Impact Index Per Article: 17.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/21/2018] [Accepted: 02/14/2019] [Indexed: 01/07/2023] Open
Abstract
BACKGROUND Microvascular decompression (MVD) is a potentially curative surgery for drug-resistant trigeminal neuralgia (TN). Predictors of pain freedom after MVD are not fully understood. OBJECTIVE To describe rates and predictors for pain freedom following MVD. METHODS Using preferred reporting items for systematic reviews and meta-analyses (PRISMA) guidelines, PubMed, Cochrane Library, and Scopus were queried for primary studies examining pain outcomes after MVD for TN published between 1988 and March 2018. Potential biases were assessed for included studies. Pain freedom (ie, Barrow Neurological Institute score of 1) at last follow-up was the primary outcome measure. Variables associated with pain freedom on preliminary analysis underwent formal meta-analysis. Odds ratios (OR) and 95% confidence intervals (CI) were calculated for possible predictors. RESULTS Outcome data were analyzed for 3897 patients from 46 studies (7 prospective, 39 retrospective). Overall, 76.0% of patients achieved pain freedom after MVD with a mean follow-up of 1.7 ± 1.3 (standard deviation) yr. Predictors of pain freedom on meta-analysis using random effects models included (1) disease duration ≤5 yr (OR = 2.06, 95% CI = 1.08-3.95); (2) arterial compression over venous or other (OR = 3.35, 95% CI = 1.91-5.88); (3) superior cerebellar artery involvement (OR = 2.02, 95% CI = 1.02-4.03), and (4) type 1 Burchiel classification (OR = 2.49, 95% CI = 1.32-4.67). CONCLUSION Approximately three-quarters of patients with drug-resistant TN achieve pain freedom after MVD. Shorter disease duration, arterial compression, and type 1 Burchiel classification may predict more favorable outcome. These results may improve patient selection and provider expectations.
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Affiliation(s)
- Katherine Holste
- Department of Neurosurgery, University of Michigan, Ann Arbor, Michigan
| | - Alvin Y Chan
- Department of Neurosurgery, University of California, Irvine, Irvine, California
| | - John D Rolston
- Department of Neurosurgery, University of Utah, Salt Lake City, Utah
| | - Dario J Englot
- Department of Neurological Surgery, Vanderbilt University Medical Center, Nashville, Tennessee
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El Refaee E, Marx S, Rosenstengel C, Baldauf J, Schroeder HWS. Arachnoid bands and venous compression as rare causes of hemifacial spasm: analysis of etiology in 353 patients. Acta Neurochir (Wien) 2020; 162:211-219. [PMID: 31754846 DOI: 10.1007/s00701-019-04119-5] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/29/2019] [Accepted: 10/23/2019] [Indexed: 11/25/2022]
Abstract
BACKGROUND Hemifacial spasm is usually caused by arterial compression at the root exit zone of the facial nerve. However, other etiologies have been reported. The aim of this study was to analyze the frequency of other causes of hemifacial spasm. METHODS Our prospectively maintained hemifacial spasm database containing all patients who underwent microvascular decompression (MVD) for hemifacial spasm from 2002 to 2018 was reviewed. All offending structures were identified and recorded by the surgeon at the time of surgery. Additionally, the operative videos were analyzed retrospectively. RESULTS MVD was performed in 353 patients. Arterial compression was the main cause of hemifacial spasm in 341 (96.9%) patients. Combined venous-arterial compression was seen in 7 (2.0%) patients. In one patient, the compression was from a large vein. In two patients, no compression was found. One patient who suffered from Bell's palsy many years previously had severe synkinesis and the other had facial tics. In two patients, the spasm was caused due to strangulation of the facial nerve by arachnoid bands. Long-term follow-up of more than 18 months was available in 249 patients with total resolution or near total resolution of spasms in 89.96% of patients. CONCLUSIONS In most patients with hemifacial spasm, arterial vessels are involved in compressing the facial nerve. Purely venous compression is rarely encountered. We report for the very first time arachnoid bands strangulating the nerve as a cause for hemifacial spasm without involvement of any vessel.
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Affiliation(s)
- Ehab El Refaee
- Klinik und Poliklinik für Neurochirurgie, Universitätsmedizin Greifswald, Sauerbruchstraße, 17475, Greifswald, Germany.
- Department of Neurosurgery, Cairo University, Cairo, Egypt.
| | - Sascha Marx
- Klinik und Poliklinik für Neurochirurgie, Universitätsmedizin Greifswald, Sauerbruchstraße, 17475, Greifswald, Germany
| | - Christian Rosenstengel
- Klinik und Poliklinik für Neurochirurgie, Universitätsmedizin Greifswald, Sauerbruchstraße, 17475, Greifswald, Germany
| | - Joerg Baldauf
- Klinik und Poliklinik für Neurochirurgie, Universitätsmedizin Greifswald, Sauerbruchstraße, 17475, Greifswald, Germany
| | - Henry W S Schroeder
- Klinik und Poliklinik für Neurochirurgie, Universitätsmedizin Greifswald, Sauerbruchstraße, 17475, Greifswald, Germany
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Wang X, Wang H, Chen S, Liang H, Wang H, Xu M, Xu L. The long-term clinical outcomes of microvascular decompression for treatment of trigeminal neuralgia compressed by the vertebra-basilar artery: a case series review. BMC Neurol 2019; 19:217. [PMID: 31481028 PMCID: PMC6721170 DOI: 10.1186/s12883-019-1450-z] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/05/2018] [Accepted: 08/27/2019] [Indexed: 11/11/2022] Open
Abstract
Background Microvascular decompression (MVD) is a type of neurosurgery used to treat trigeminal neuralgia (TN) caused by the vertebrobasilar contact/compression. The surgery is not risk-free, however; it may cause recurrent facial pain or other side-effects. The objective of this study was to assess the long-term pain relief and the complications of MVD surgery for the vertebrobasilar compression treatment. Methods Twenty-three patients with TN compressed by the vertebra-basilar artery (VBA) were treated with MVD. Teflon felt was placed between the brain stem and the offending artery to mobilize the artery towards the skull base and the clivus. The Barrow Neurological Institute (BNI) Pain Intensity Scale score was used to assess pre- and post-surgical pains. Results Of 23 patients with pre-operative BNI IV to V, 19 patients (83%) were pain-free after surgery. Four patients experienced transient partial pain relief with BNI II–III, and 3 of them (13%) were completely pain-free within 3 months. The success rate was 96%. Three patients (13%) had pain recurrences, and one received a second MVD surgery for pain relief during the period of follow-up. Four patients suffered from TN hypesthesia, and only 2 patients (8.6%) had permanent facial hypesthesia, while one patient (4.3%) developed a gradual hearing loss after surgery. Conclusions While our success rate of immediate pain relief after surgery was comparable with some reports, the percentage of patients who had pain recurrences was lower, and cases who had permanent facial hypesthesia or developed a gradual hearing loss were fewer after MVD surgery. Our rate of transient complications was higher, and the postoperative pain relief seemed unusually delayed. Our study indicates that MVD is an effective, reliable, and safe neurosurgery for treatment of TN compressed by the VBA albeit our small sample size. Failure of treatment and recurrence of the disease as well as complications could be minimized by preventing displacement of the Teflon implant and extraneous Teflon touching the trigeminal nerves.
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Affiliation(s)
- Xuhui Wang
- Department of Neurosurgery, Daping Hospital, Army Medical University, No. 10 Daping Changjiang Street, Yuzhong District, Chongqing, 400042, China
| | - Hong Wang
- Department of Neurosurgery, Daping Hospital, Army Medical University, No. 10 Daping Changjiang Street, Yuzhong District, Chongqing, 400042, China
| | - Sha Chen
- Department of Clinical Biochemistry, Southwestern Hospital, Army Medical University, Chongqing, 400038, China
| | - Hong Liang
- Department of Neurosurgery, Daping Hospital, Army Medical University, No. 10 Daping Changjiang Street, Yuzhong District, Chongqing, 400042, China
| | - Hao Wang
- Department of Neurosurgery, Daping Hospital, Army Medical University, No. 10 Daping Changjiang Street, Yuzhong District, Chongqing, 400042, China
| | - Minhui Xu
- Department of Neurosurgery, Daping Hospital, Army Medical University, No. 10 Daping Changjiang Street, Yuzhong District, Chongqing, 400042, China.
| | - Lunshan Xu
- Department of Neurosurgery, Daping Hospital, Army Medical University, No. 10 Daping Changjiang Street, Yuzhong District, Chongqing, 400042, China.
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Park CK, Lee SH, Park BJ. Surgical Outcomes of Revision Microvascular Decompression for Persistent or Recurrent Hemifacial Spasm After Surgery: Analysis of Radiologic and Intraoperative Findings. World Neurosurg 2019; 131:e454-e459. [PMID: 31382068 DOI: 10.1016/j.wneu.2019.07.191] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/15/2019] [Revised: 07/25/2019] [Accepted: 07/26/2019] [Indexed: 11/29/2022]
Abstract
OBJECTIVES Microvascular decompression (MVD) is the treatment of choice for hemifacial spasm (HFS), due to the high rate of complete resolution associated with MVD. However, some patients experience recurrent or persistent symptoms after surgery. In this study, we evaluated the causes of recurrence or failure based on our surgical experience with revision of MVD for HFS and analyzed the relationship between surgical outcomes and radiologic and intraoperative findings. METHODS Among more than 2500 patients who underwent MVD surgery for HFS, 23 patients received a second MVD in our hospital from January 2002 to December 2017. Three-dimensional time-of-flight magnetic resonance angiography and reconstructed imaging were used to identify the culprit vessel and its conflict on the root exit zone (REZ) of the facial nerve. We reviewed patients' medical records and operation videos to identify the missing points of first surgery. RESULTS In our experience with revision of MVD, 8 patients had incomplete decompression, such as single-vessel decompression of multiple offending vessels. Teflon was not detected at the REZ but was found in other locations in 12 patients. Three patients had severe adhesion with previous Teflon around the REZ. Nineteen patients had excellent surgical outcomes at immediate postoperative evaluation; 20 patients showed spasm disappearance at 1 year after surgery and 3 patients showed persistent symptoms. Neurovascular contacts around the REZ of the facial nerve were revealed on magnetic resonance imaging of incomplete decompression and Teflon malposition patient groups. There were no clear neurovascular contacts in the patients with severe Teflon adhesion. CONCLUSIONS The decision regarding secondary MVD for persistent or recurrent spasm is troubling. However, if neurovascular contact was observed in the MRI of the patient and there were offending vessels, the surgical outcome might be favorable.
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Affiliation(s)
- Chang Kyu Park
- Department of Neurosurgery, Kyung Hee University College of Medicine, Seoul, Republic of Korea
| | - Seung Hwan Lee
- Department of Neurosurgery, Kyung Hee University College of Medicine, Seoul, Republic of Korea
| | - Bong Jin Park
- Department of Neurosurgery, Kyung Hee University College of Medicine, Seoul, Republic of Korea.
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Li Ching Ng A, Di Ieva A. How I do it: 3D exoscopic endoscope-assisted microvascular decompression. Acta Neurochir (Wien) 2019; 161:1443-1447. [PMID: 31144166 DOI: 10.1007/s00701-019-03954-w] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/03/2019] [Accepted: 05/08/2019] [Indexed: 10/26/2022]
Abstract
BACKGROUND Microvascular decompression (MVD) is an effective treatment for drug-resistant trigeminal neuralgia and hemifacial spasm. However, failure of symptomatic improvement can arise from difficulties in identifying and/or decompressing the offending vessel. Microscopic and endoscopic techniques have been used to improve visualisation and safety of the procedure but there are limitations to each technique. METHOD A 3D exoscopic endoscope-assisted MVD technique is described, including advice on potential pitfalls. CONCLUSION Compared with the standard microscope-assisted techniques, the 3D exoscopic endoscope-assisted MVD offers an improved visualisation without compromising the field of view within and outside the surgical field.
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Li Y, Yang L, Ni J, Dou Z. Microvascular decompression and radiofrequency for the treatment of trigeminal neuralgia: a meta-analysis. J Pain Res 2019; 12:1937-1945. [PMID: 31303785 PMCID: PMC6605044 DOI: 10.2147/jpr.s203141] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/30/2019] [Accepted: 05/28/2019] [Indexed: 11/23/2022] Open
Abstract
PURPOSE Surgical treatments are used for trigeminal neuralgia (TN) when drug treatment fails. Surgical options can be divided into two categories: ablation (destructive) or non-ablation. Microvascular decompression (MVD) is primarily a non-ablation option, while radiofrequency thermocoagulation/rhizotomy (RF) is an ablation option. The aim of this study was to compare outcomes of MVD versus RF in the treatment of TN. MATERIALS AND METHODS This article evaluates the clinical results and economic effectiveness of trigeminal nerve RF and MVD for the treatment of TN. This review was conducted according to the methodological standards described in the Cochrane Handbook for Systematic Reviews of Interventions and the Preferred Reporting Items for Systematic Reviews and Meta-analysis statement. The PubMed, Embase and Cochrane libraries were searched in January 2018. We have registered our review at the Review Registry. RESULTS Nine studies were included in this review. The sample size was 2163 participants. The results showed that compared with RF, MVD had a lower risk of requiring a secondary procedure. The MVD group also had a lower risk of facial numbness. There was no significant difference in postoperative medication use between the two groups. Compared to RF, MVD was more likely to increase the risk of hypacusis and hypesthesia and to decrease the risk of facial pain and dysesthesia. The total cost of MVD, including the operation, hospital stay and additional procedures, was much higher than that of RF. CONCLUSION MVD had a lower risk of requiring a secondary procedure and facial numbness after surgery. RF could be considered in patients who are unfit for MVD or refused invasive treatment.
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Affiliation(s)
- Yan Li
- Department of Pain Management, Xuanwu Hospital, Capital Medical University, Beijing100053, People’s Republic of China
- National Center for Clinical Medicine of Geriatric Diseases, Beijing100053, People’s Republic of China
- Center for Anesthesiology, Beijing Anzhen Hospital, Capital Medical University, Beijing100029, People’s Republic of China
| | - Liqiang Yang
- Department of Pain Management, Xuanwu Hospital, Capital Medical University, Beijing100053, People’s Republic of China
- National Center for Clinical Medicine of Geriatric Diseases, Beijing100053, People’s Republic of China
| | - Jiaxiang Ni
- Department of Pain Management, Xuanwu Hospital, Capital Medical University, Beijing100053, People’s Republic of China
- National Center for Clinical Medicine of Geriatric Diseases, Beijing100053, People’s Republic of China
| | - Zhi Dou
- Department of Pain Management, Xuanwu Hospital, Capital Medical University, Beijing100053, People’s Republic of China
- National Center for Clinical Medicine of Geriatric Diseases, Beijing100053, People’s Republic of China
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Fujita N, Adachi S, Suzuki M, Shimizu Y, Akiyama O, Kondo A. Transposition of posterior inferior cerebellar artery could have caused ischemic complication in microvascular decompression for hemifacial spasm. INTERDISCIPLINARY NEUROSURGERY 2019. [DOI: 10.1016/j.inat.2018.11.005] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022] Open
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45
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Kurucz P, Ganslandt O, Buchfelder M, Barany L. Arachnoid Membranes Around the Cisternal Segment of the Trigeminal Nerve: A Cadaveric Anatomic Study and Intraoperative Observations During Minimally Invasive Microvascular Decompression Surgery. World Neurosurg 2019; 125:e262-e272. [DOI: 10.1016/j.wneu.2019.01.060] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/11/2018] [Revised: 01/03/2019] [Accepted: 01/05/2019] [Indexed: 10/27/2022]
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Liu M, Zhong J, Xia L, Dou N, Li S. The expression of voltage-gated sodium channels in trigeminal nerve following chronic constriction injury in rats. Int J Neurosci 2019; 129:955-962. [PMID: 30889362 DOI: 10.1080/00207454.2019.1595616] [Citation(s) in RCA: 22] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
Abstract
Objectives: Despite the etiology of trigeminal neuralgia has been verified by microvascular decompression as vascular compression of the trigeminal root, very few researches concerning its underlying pathogenesis has been reported in the literature. The present study focused on those voltage-gated sodium channels, which are the structural basis for generation of ectopic action potentials. Methods: The trigeminal neuralgia modeling was obtained with infraorbital nerve chronic constriction injury (ION-CCI) in rats. Two weeks postoperatively, the infraorbital nerve (TN), the trigeminal ganglion (TG), and the brain stem (BS) were removed and analyzed with a series of molecular biological techniques. Results: Western blot depicted a significant up-regulation of Nav1.3 in TN and TG but not in BS, while none of the other isoforms (Nav1.6, Nav1.7, Nav1.8, or Nav1.9) presented a statistical change. The Nav1.3 from ION-CCI group was quantified as 2.5-fold and 1.7-fold than that from sham group in TN and TG, respectively (p < .05). Immunocytochemistry showed the Nav1.3-IR from ION-CCI group accounted for 21.2 ± 2.3% versus 6.1 ± 1.2% from sham group in TN, while the Nav1.3-positive neurons from ION-CCI group accounted for 34.1 ± 3.5% versus 11.2 ± 1.8% from sham group in TG. Immunohistochemical labeling showed the Nav1.3 was co-localized with CGRP and IB4 but not with GFAP or NF-200 in TG. Conclusion: ION-CCI may give rise to an up-regulation of Nav1.3 in trigeminal nerve as well as in C-type neurons at the trigeminal ganglion. It implied that the ectopic action potential may generate from both the compressed site of the trigeminal nerve and the ganglion rather than from the trigeminal nuclei.
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Affiliation(s)
- Mingxing Liu
- Department of Neurosurgery, XinHua Hospital (The Cranial Nerve Disease Center of Shanghai), Shanghai JiaoTong University School of Medicine , Shanghai , China
| | - Jun Zhong
- Department of Neurosurgery, XinHua Hospital (The Cranial Nerve Disease Center of Shanghai), Shanghai JiaoTong University School of Medicine , Shanghai , China
| | - Lei Xia
- Department of Neurosurgery, XinHua Hospital (The Cranial Nerve Disease Center of Shanghai), Shanghai JiaoTong University School of Medicine , Shanghai , China
| | - Ningning Dou
- Department of Neurosurgery, XinHua Hospital (The Cranial Nerve Disease Center of Shanghai), Shanghai JiaoTong University School of Medicine , Shanghai , China
| | - Shiting Li
- Department of Neurosurgery, XinHua Hospital (The Cranial Nerve Disease Center of Shanghai), Shanghai JiaoTong University School of Medicine , Shanghai , China
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Tamada T, Mikami T, Komura S, Suzuki H, Ukai R, Sugita S, Hasegawa T, Mikuni N. Pseudoaneurysm presenting around polytetrafluoroethylene fiber following microvascular decompression: A case report and literature review. J Clin Neurosci 2019; 63:231-234. [PMID: 30732984 DOI: 10.1016/j.jocn.2019.01.041] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/12/2018] [Accepted: 01/28/2019] [Indexed: 10/27/2022]
Abstract
We report the first case of pseudoaneurysm associated with polytetrafluoroethylene fiber used in microvascular decompression (MVD). A 62-year-old female who had undergone MVD for hemifacial spasm 30 years ago presented with a 4-month history of progressive facial palsy. Computed tomography angiography revealed a large thrombosed aneurysm originating from the right posterior inferior cerebellar artery and having a mass effect upon the pons. The aneurysm was treated by trapping and bypass procedure. Intraoperatively, the pseudoaneurysm adhered to the dura mater, and the thrombus contained a large amount of polytetrafluoroethylene fiber. The cause and management of pseudoaneurysm after MVD is discussed.
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Affiliation(s)
- Tomoaki Tamada
- Department of Neurosurgery, Sapporo Medical University, Japan
| | - Takeshi Mikami
- Department of Neurosurgery, Sapporo Medical University, Japan.
| | - Syoichi Komura
- Department of Neurosurgery, Sapporo Medical University, Japan
| | - Hime Suzuki
- Department of Neurosurgery, Sapporo Medical University, Japan
| | - Ryo Ukai
- Department of Neurosurgery, Sapporo Medical University, Japan
| | - Shintaro Sugita
- Department of Surgical Pathology, Sapporo Medical University, Japan
| | - Tadashi Hasegawa
- Department of Surgical Pathology, Sapporo Medical University, Japan
| | - Nobuhiro Mikuni
- Department of Neurosurgery, Sapporo Medical University, Japan
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Liu MX, Zhong J, Xia L, Dou NN, Li ST. A correlative analysis between inflammatory cytokines and trigeminal neuralgia or hemifacial spasm. Neurol Res 2019; 41:335-340. [PMID: 30612530 DOI: 10.1080/01616412.2018.1564188] [Citation(s) in RCA: 21] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/30/2022]
Abstract
BACKGROUND It is necessary to understand the mechanism of trigeminal neuralgia (TN) and hemifacial spasm (HFS) in order to seek for an effective noninvasive remedy. As previous studies implied that inflammatory cytokines induced by demyelination following the nerve injury may be the initiated factor causing neuropathic pain, we attempt to analyze the correlation between cytokines and these hyperactive cranial nerve disorders. METHOD The consecutive patients whose diagnosis were confirmed by microvascular decompression surgery as primary TN or HFS caused by vascular compression and healthy volunteers between March and May 2018 in XinHua Hospital Shanghai JiaoTong University School of Medicine were recruited. Preoperatively, venous blood was collected and the protein concentrations of IL-1β, IL-2, IL-6, IL-8, IL-10, TNF-α and IFN-γ were determined with ELISA. Each cytokine was compared between the patients and healthy volunteers. RESULTS Ultimately, 28 healthy volunteers as well as 44 TN and 47 HFS patients were enrolled in this investigation. The serum levels of IL-1β, IL-6, IL-8 and TNF-α in either HFS or TN patients were significantly higher than that in healthy volunteers (p < 0.05), yet which were similar between TN and HFS patients (p > 0.05). Besides, there was a significantly correlation between IL-6 concentration and severity of HFS (r = 0.933, p < 0.05) or TN (r = 0.943, p < 0.05). DISCUSSION Vascular compression of trigeminal or facial nerve roots may induce a rise in variety of cytokines, and IL-6 may play an important role in the signaling pathways to generate ectopic impulses from these cranial nerves.
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Affiliation(s)
- Ming-Xing Liu
- a Department of Neurosurgery , XinHua Hospital (The Cranial Nerve Disease Center of Shanghai), Shanghai JiaoTong University School of Medicine , Shanghai , China
| | - Jun Zhong
- a Department of Neurosurgery , XinHua Hospital (The Cranial Nerve Disease Center of Shanghai), Shanghai JiaoTong University School of Medicine , Shanghai , China
| | - Lei Xia
- a Department of Neurosurgery , XinHua Hospital (The Cranial Nerve Disease Center of Shanghai), Shanghai JiaoTong University School of Medicine , Shanghai , China
| | - Ning-Ning Dou
- a Department of Neurosurgery , XinHua Hospital (The Cranial Nerve Disease Center of Shanghai), Shanghai JiaoTong University School of Medicine , Shanghai , China
| | - Shi-Ting Li
- a Department of Neurosurgery , XinHua Hospital (The Cranial Nerve Disease Center of Shanghai), Shanghai JiaoTong University School of Medicine , Shanghai , China
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Microvascular Decompression for Hemifacial Spasm Associated with Vertebral Artery: Biomedical Glue−Coated Teflon Sling Transposition Technique. World Neurosurg 2018; 120:e342-e348. [DOI: 10.1016/j.wneu.2018.08.073] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/02/2018] [Revised: 08/09/2018] [Accepted: 08/11/2018] [Indexed: 11/23/2022]
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Dumot C, Sindou M. Veins of the Cerebellopontine Angle and Specific Complications of Sacrifice, with Special Emphasis on Microvascular Decompression Surgery. A Review. World Neurosurg 2018; 117:422-432. [PMID: 29966798 DOI: 10.1016/j.wneu.2018.06.160] [Citation(s) in RCA: 26] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/02/2018] [Revised: 06/18/2018] [Accepted: 06/19/2018] [Indexed: 02/07/2023]
Abstract
Good knowledge of the anatomy of veins is of crucial importance for the functional surgery of cranial nerve (CN) disorders, especially microvascular decompression for trigeminal neuralgia (TN), hemifacial spasm (HFS), and vagoglossopharyngeal neuralgia (VGPN). Although controversial, veins may be involved in neurovascular conflicts and may constitute dangerous obstacles to access to the CNs. With the aim of estimating the implications of veins in those diseases and evaluating the linked surgical difficulties, we carried out a review of the literature from 2000 to the end of February 2018. For this review, articles found on PubMed that gave enough precision about veins were retained (39 articles on TN, 38 on HFS, 8 on VGPN, and 26 on complications related to venous sacrifices). Before this review, we described a simplified anatomic classification of veins, amenable to easing the surgical approach to CNs. Access to the trigeminal nerve, via the infratentorial-supracerebellar route, is almost always affected by the superficial superior petrosal venous system, whereas access to the facial and cochleovestibular complex as well as to the lower CNs, through the infrafloccular trajectory, is almost always exempt of important venous obstacles. Respective incidences of venous compression at the origin of hyperactive CN syndromes are given. The percentages of a venous conflict alone were calculated at 10.8% for TN, 0.1% for HFS, and 2.9% for VGPN. We review the complications considered in relation with venous sacrifices. Precautions to minimize these complications are given.
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Affiliation(s)
- Chloé Dumot
- Hôpital neurologique Pierre Wertheimer, Lyon, France; Université Lyon 1, Lyon, France.
| | - Marc Sindou
- Université Lyon 1, Lyon, France; Groupe ELSAN, Clinique Bretéché, Nantes, France
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