1
|
Al Mutawa M, Matthes M, Schroeder HWS, Weidemeier ME. Etiology and Management of Recurrent and Persistent Hemifacial Spasm-A Single-Center Experience. Neurosurgery 2024; 95:418-427. [PMID: 38456708 DOI: 10.1227/neu.0000000000002894] [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: 10/16/2023] [Accepted: 01/08/2024] [Indexed: 03/09/2024] Open
Abstract
BACKGROUND AND OBJECTIVES Despite a 90% success rate, microvascular decompression occasionally fails to resolve hemifacial spasm (HFS), necessitating revision surgery. We investigated recurrent cases to identify underlying causes. METHODS We evaluated patients at our institution who underwent revision microvascular decompression because of recurrent or persistent HFS, assessing recurrence causes, decompression techniques, complications, and outcomes. Data considered included demographics, preoperative symptoms, disease duration, offending vessel, and magnetic resonance findings. Surgical notes and intraoperative videos were reviewed, and telephone interviews were conducted for recent outcomes. RESULTS Out of our ongoing series of 493 patients, 43 patients (8.7%) required revision surgery with a patient cohort of 33 females and 10 males. The average symptom duration was 10 years. The median time between primary and revision surgery was 14 months. Thirteen patients (30.2%) underwent initial surgery elsewhere. Adhesions of Teflon pledgets to the facial nerve were the primary cause of nonresolution in 23 patients (53.5%), while in 13 (30.2%), a missed vascular compression was identified. Sixteen patients (37.2%) had sufficient decompression by removing the conflicting pledgets. During 10 revisions (23.3%), additional Teflon pledgets were necessary. After a median follow-up of 67 months after revision surgery, 27 patients (62.8%) reported complete spasm resolution. Six patients (14.0%) had a good outcome with over 90% reduction of their spasms, 3 patients (7.0%) stated a fair outcome (50% improvement), while 7 patients (16.3%) had no improvement. CONCLUSION According to our results, adhesions of Teflon to the facial nerve may cause HFS recurrence. Therefore, whenever possible, Teflon should be placed without nerve contact between the brainstem and the offending vessel. Using a sling or bridge technique seems to be beneficial because it leaves the facial nerve completely free. Persistent symptoms often result from missed offending vessels in the pontomedullary sulcus indicating the benefit of endoscopic inspection of this area with an endoscope.
Collapse
Affiliation(s)
- Mariam Al Mutawa
- Department of Neurosurgery, Jaber Al Ahmad Hospital, Kuwait City , Kuwait
- Department of Neurosurgery, University Medicine Greifswald, Greifswald , Germany
| | - Marc Matthes
- Department of Neurosurgery, University Medicine Greifswald, Greifswald , Germany
| | - Henry W S Schroeder
- Department of Neurosurgery, University Medicine Greifswald, Greifswald , Germany
| | - Martin E Weidemeier
- Department of Neurosurgery, University Medicine Greifswald, Greifswald , Germany
| |
Collapse
|
2
|
Inoue T, Goto Y, Inoue Y, Adidharma P, Prasetya M, Fukushima T. Potential reasons for failure and recurrence in microvascular decompression for hemifacial spasm. Acta Neurochir (Wien) 2023; 165:3845-3852. [PMID: 38012393 DOI: 10.1007/s00701-023-05861-7] [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: 09/21/2023] [Accepted: 10/22/2023] [Indexed: 11/29/2023]
Abstract
BACKGROUND To examine the factors contributing to persistent and recurrent hemifacial spasms (HFS) following a microvascular decompression (MVD) procedure and to suggest technical improvements to prevent such failures. METHODS A retrospective review was conducted on fifty-two cases of repeat surgery. The extent of the previous craniotomy and the location of neurovascular compression (NVC) were investigated. The operative findings were categorized into two groups: "Missing Compression" and "Teflon Contact". The analysis included long-term outcomes and operative complications after repeat MVD procedures. RESULTS Missing compression was identified in 29 patients (56%), while Teflon contact was observed in 23 patients (44%). Patients with missing compression were more likely to experience improper craniotomy (66%) compared to those with Teflon contact (48%). Medially located NVC was a frequent finding in both groups, mainly due to compression by the anterior inferior cerebellar artery. In the missing compression group, during the repeat MVD, Teflon sling retraction was utilized in 79% of cases, while in the Teflon contact group, the most common procedure involved removing the Teflon in contact (65%). After the repeat MVD procedure, immediate spasm relief was achieved in 42 patients (81%), with six (12%) experiencing delayed relief. After a median follow-up of 54 months, 96% of patients were free from spasms. Delayed facial palsy, facial weakness, and hearing impairment were more frequently observed in the Teflon contact group. CONCLUSIONS A proper craniotomy that provides adequate exposure around the REZ is crucial to prevent missing the culprit vessel during the initial MVD procedure. Teflon contact on the REZ should be avoided, as it poses a potential risk of procedure failure and recurrence.
Collapse
Affiliation(s)
- Takuro Inoue
- Department of Neurosurgery, Koto Memorial Hospital, Higashiomi, Shiga, Japan.
- Department of Neurosurgery, National Brain Center Hospital, Jakarta, Indonesia.
| | - Yukihiro Goto
- Department of Neurosurgery, Koto Memorial Hospital, Higashiomi, Shiga, Japan
| | - Yasuaki Inoue
- Department of Neurosurgery, Nadogaya Hospital, Chiba, Japan
| | - Peter Adidharma
- Department of Neurosurgery, National Brain Center Hospital, Jakarta, Indonesia
| | - Mustaqim Prasetya
- Department of Neurosurgery, National Brain Center Hospital, Jakarta, Indonesia
| | - Takanori Fukushima
- Division of Neurosurgery, Duke University Medical Center, Durham, North Carolina, USA
| |
Collapse
|
3
|
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.
Collapse
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
| |
Collapse
|
4
|
Grigoryan GY, Dzhindzhikhadze RS, Shumovsky VK, Grigoryan YA. [Interposition and transposition techniques of vascular decompression for hemifacial spasm]. ZHURNAL VOPROSY NEIROKHIRURGII IMENI N. N. BURDENKO 2023; 87:30-40. [PMID: 37011326 DOI: 10.17116/neiro20238702130] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 04/05/2023]
Abstract
OBJECTIVE To analyze the vessels compressing facial nerve root exit zone and efficacy of interposition and transposition techniques of vascular decompression for hemifacial spasm. MATERIAL AND METHODS Vascular compression was evaluated in 110 patients. Implant interposition between vessels and nerve was performed in 52 cases, transposition of arteries without contact between implants and nerve - in 58 patients. RESULTS Compressing vessels were anterior (44), posterior (61) inferior cerebellar, vertebral (28) arteries and veins (4). Multiple compressing vessels were found in 27 cases. Premeatal meningioma and jugular schwannoma were accompanied by vascular compression in 2 cases. Immediate regression of symptoms was observed in 104 patients, partial regression - in 6 patients. Transient facial paresis (4) and impaired hearing (5) were noted after implant interposition. Redo vascular decompression was performed in one case. CONCLUSION The most common compressing vessels were cerebellar arteries, vertebral artery and veins. Transposition of arteries is highly effective technique with low incidence of VII-VII nerve dysfunction but relatively slow regression of symptoms.
Collapse
Affiliation(s)
- G Yu Grigoryan
- Moscow Regional Research Clinical Institute, Moscow, Russia
| | | | | | | |
Collapse
|
5
|
Reoperation for residual or recurrent hemifacial spasm after microvascular decompression. Acta Neurochir (Wien) 2022; 164:2963-2973. [PMID: 35922722 DOI: 10.1007/s00701-022-05315-6] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/06/2022] [Accepted: 07/10/2022] [Indexed: 02/01/2023]
Abstract
PURPOSE Microvascular decompression (MVD) surgery is the only potential curative method for hemifacial spasm (HFS). Little attention is paid to those recurrent/residual HFS cases. We want to study the potential etiology of those recurrent/residual HFS cases and evaluate the value of reoperation. METHODS We retrospectively reviewed reoperation hemifacial spasm patients in our hospital. Intraoperative videos or images were carefully reviewed, and the etiology of recurrent/residual HFS is roughly divided into three categories. Intraoperative findings, surgical outcomes, and complications were carefully studied to assess the value of reoperation for recurrent/residual HFS patients. RESULTS A total of 28 cases were included in our case series. Twenty-three of them are recurrent HFS cases, and 5 of them are residual HFS cases. The mean follow-up duration is 24.96 months. There are seventeen patients with missed culprit vessels or insufficient decompression of root exit zone (REZ), eight patients with Teflon adhesion, and three patients with improper application of decompression materials in our case series. The final reoperation outcome with 17 excellent, seven good, and four fair, respectively. Eight (28.57%) of them experienced long-term complications after reoperation. CONCLUSION Re-operation for recurrent/residual HFS is an effective therapy and can achieve a higher cure rate. However, the complication rate is higher compared to the first MVD surgery. Accurately identifying REZ and proper decompression strategies to deal with the culprit vessels are very important for surgical success. TRIAL REGISTRATION NUMBER UIN: researchregistry7603. Date of registration: Jan. 31st, 2022 "retrospectively registered".
Collapse
|
6
|
Patel KP, Eubanks K, Wecht DA, Sekula RF. Facial Nerve Massage for the Treatment of Hemifacial Spasm Refractory to Microvascular Decompression: Outcomes and Complications. Neurosurgery 2022; 91:570-574. [PMID: 35876666 DOI: 10.1227/neu.0000000000002075] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/02/2022] [Accepted: 05/10/2022] [Indexed: 02/04/2023] Open
Abstract
BACKGROUND After microvascular decompression (MVD) for hemifacial spasm (HFS), a minority of patients realize little to no relief of spasms. In some patients, the absence of relief of spasms results from incomplete or inadequate decompression of vascular compression of the facial nerve, and these patients represent excellent candidates for repeat MVD. However, in other patients, repeat MVD is not appropriate because adequate decompression and resolution of neurovascular compression, as determined by postoperative high-resolution MRI, was achieved with the initial operation. OBJECTIVE To present a cohort of patients with a history of HFS refractory to MVD, with no evidence of neurovascular compression on postoperative MRI, who underwent facial nerve massage (FNM) in the posterior fossa in an attempt to relieve spasms. METHODS Thirteen patients with a history of incomplete relief of spasms after technically adequate MVD surgery for hemifacial spasm underwent FNM. Immediate and long-term degree of spasm relief and complications after FNM were documented through in-person or telemedicine interview. RESULTS At follow-up after FNM, 7 of 12 patients (58.3%) reported complete spasm relief (grade I), 2 of 12 patients (16.7%) reported >75% spasm relief (grade II), 0 patient (0%) reported >50% spasm relief (grade III), 3 of 12 (25.0%) patients reported <50% spasm relief (grade IV), and 1 patient was lost to follow-up. One patient experienced a delayed facial paresis, and another patient experienced high-frequency hearing loss. CONCLUSION After FNM, durable and, at least, partial relief of spasms with a relatively low complication rate was observed in most patients with HFS with incomplete relief of spasms after technically adequate prior MVD.
Collapse
Affiliation(s)
- Kevin P Patel
- University of Pittsburgh School of Medicine, Pittsburgh, Pennsylvania, USA
| | - Komal Eubanks
- Department of Neurological Surgery, University of Pittsburgh Medical Center, Pittsburgh, Pennsylvania, USA
| | - Daniel A Wecht
- Department of Neurological Surgery, University of Pittsburgh Medical Center, Pittsburgh, Pennsylvania, USA
| | - Raymond F Sekula
- Department of Neurological Surgery, Columbia University Vagelos College of Physicians and Surgeons, New York, New York, USA
| |
Collapse
|
7
|
Wang M, Wang J, Zhang X, Chai S, Cai Y, Dai X, Yang B, Liu W, Lu T, Mei Z, Zheng Z, Zhou Y, Yang J, Shen L, Zhao J, Ho J, Cai M, Chen J, Xiong N. Intraoperative Findings of Inferior Petrosal Vein During Microvascular Decompression for Hemifacial Spasm: A Single-Surgeon Experience. Front Surg 2022; 9:921589. [PMID: 35756473 PMCID: PMC9226572 DOI: 10.3389/fsurg.2022.921589] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/16/2022] [Accepted: 05/24/2022] [Indexed: 11/13/2022] Open
Abstract
Objective This study aims to evaluate the impact of the inferior petrosal veins (IPVs) on operational exploration and to analyze related anatomic features. Methods A total of 317 patients were retrospectively studied. Surgical outcomes and postoperative complications were analyzed, and patients were divided into two groups according to whether the IPV was sacrificed or preserved. The diameter of the IPV was also recorded during operation. Furthermore, the position where the IPV drained into the jugular bulb was recorded in each patient, and the influence of different injection points on the operation was analyzed. Results IPVs were conclusively identified in 242/317 (76.3%) of patients, with 110/242 (45.5%) of patients categorized as “IPV sacrifice” versus 132/242 (54.5%) categorized as “IPV preservation.” IPV diameter was observed to be <0.5 mm in 58 cases (23.9%), 0.5 mm–1.0 mm (≥0.5 mm and ≤1.0 mm) in 145 cases (59.9%), and >1 mm in 39 cases (16.2%). The position of IPV drainage into the jugular bulb was at the level of the accessory nerve in 163 cases (67.3%), the level of the vagus nerve in 42 cases (17.4%), and the level of the glossopharyngeal nerve or above in 37 cases (15.3%). The diameters of IPV in the sacrifice group were mainly less than 1 mm (94.5% vs. 75%, P < 0.01), and the cases with draining points near the glossopharyngeal nerve were more than that in the preservation group (27.3% vs. 5.3%, P < 0.01). Conclusion IPV is an obstructive structure in MVD for HFS, with considerable variations in diameters and draining points. IPV near the glossopharyngeal nerve significantly impacts surgical exposure and is often sacrificed for a better view of the operation field. Meanwhile, it is feasible to maintain IPVs with a diameter >1 mm.
Collapse
Affiliation(s)
- Mengyang Wang
- Department of Neurosurgery, Zhongnan Hospital of Wuhan University, Wuhan, China
| | - Jiajing Wang
- Department of Neurosurgery, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Xiuling Zhang
- Department of Neurology, Xiaogan Hospital Affiliated to Wuhan University of Science and Technology, Xiaogan, China
| | - Songshan Chai
- Department of Neurosurgery, Zhongnan Hospital of Wuhan University, Wuhan, China
| | - Yuankun Cai
- Department of Neurosurgery, Zhongnan Hospital of Wuhan University, Wuhan, China
| | - Xuan Dai
- Department of Neurosurgery, Zhongnan Hospital of Wuhan University, Wuhan, China
| | - Bangkun Yang
- Department of Neurosurgery, Zhongnan Hospital of Wuhan University, Wuhan, China
| | - Wen Liu
- Department of Neurosurgery, Zhongnan Hospital of Wuhan University, Wuhan, China
| | - Taojunjin Lu
- Department of Neurosurgery, Zhongnan Hospital of Wuhan University, Wuhan, China
| | - Zhimin Mei
- Department of Neurosurgery, Zhongnan Hospital of Wuhan University, Wuhan, China
| | - Zhixin Zheng
- Department of Neurosurgery, Zhongnan Hospital of Wuhan University, Wuhan, China
| | - YiXuan Zhou
- Department of Neurosurgery, Zhongnan Hospital of Wuhan University, Wuhan, China
| | - Jingyi Yang
- Department of Neurosurgery, Zhongnan Hospital of Wuhan University, Wuhan, China
| | - Lei Shen
- Department of Neurosurgery, Zhongnan Hospital of Wuhan University, Wuhan, China
| | - Jingwei Zhao
- Department of Neurosurgery, Zhongnan Hospital of Wuhan University, Wuhan, China
| | - Joshua Ho
- School of Biomedical Sciences, LKS Faculty of Medicine, Hongkong University, Hongkong, China
| | - Meng Cai
- iRegene Therapeutics Ltd., Wuhan, Hongkong, China
| | - Jincao Chen
- Department of Neurosurgery, Zhongnan Hospital of Wuhan University, Wuhan, China
- Correspondence: Jincao Chen Nanxiang Xiong
| | - Nanxiang Xiong
- Department of Neurosurgery, Zhongnan Hospital of Wuhan University, Wuhan, China
- Correspondence: Jincao Chen Nanxiang Xiong
| |
Collapse
|
8
|
Liu J, Li F, Wu G, Liu B, Zhou J, Fan C, Jiao F, Wang D, Wu G, Song H, Liu R. Long-Term Retrospective Analysis of Re-do Microvascular Decompression in Patients With Hemifacial Spasm. Front Neurol 2021; 12:687945. [PMID: 34539549 PMCID: PMC8442547 DOI: 10.3389/fneur.2021.687945] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/30/2021] [Accepted: 08/13/2021] [Indexed: 11/24/2022] Open
Abstract
Objective: To explore the clinical characteristics of patients with persistent or recurrent hemifacial spasm (HFS) and the experience of microvascular decompression (MVD) in the treatment of such patients to accumulate additional clinical evidence for optimal treatment protocols. Methods: We retrospectively analyzed the clinical data, surgical methods and treatment efficacies of 176 patients with persistent or recurrent HFS from January 2009 to January 2018. Results: Missing compression zones was the main reason for symptom persistence (87.50%) or recurrence (71.50%) after MVD treatment of HFS. We divided the surgical area into three zones. Most persistent or recurrent cases had decompression only in the root exit zone (REZ) (Zone 1) but missed the ventrolateral pons-involved area (Zone 2) or the bulbopontine sulcus-involved area (Zone 3) in the first MVD. Too much use of Teflon (12.50%), arachnoid adhesions (5.60%) and Teflon granulomas (10.40%) can also cause a recurrence. The difference between preoperative and postoperative Cohen scores was statistically significant in persistent or recurrent HFS patients (p<0.05). The postoperative follow-up time ranged from 36 to 108 months (71.75 ± 22.77). Conclusions: MVD should be performed in the compression site, which is mostly located at the brainstem/facial REZ. Intraoperative exploration should be conducted in accordance with the abovementioned zones to effectively avoid missing offending vessels. Re-do MVD is effective in patients with persistent or recurrent HFS.
Collapse
Affiliation(s)
- Jiayu Liu
- Department of Neurosurgery, Peking University People's Hospital, Beijing, China
| | - Fang Li
- Department of Neurosurgery, Peking University People's Hospital, Beijing, China
| | - Guangyong Wu
- Department of Neurosurgery, The Hospital of Shunyi District, Beijing, China
| | - Bo Liu
- Department of Neurosurgery, Peking University People's Hospital, Beijing, China
| | - Jingru Zhou
- Department of Neurosurgery, Peking University People's Hospital, Beijing, China
| | - Cungang Fan
- Department of Neurosurgery, Peking University People's Hospital, Beijing, China
| | - Feng Jiao
- Department of Neurosurgery, Peking University People's Hospital, Beijing, China
| | - Dongliang Wang
- Department of Neurosurgery, Peking University People's Hospital, Beijing, China
| | - Gang Wu
- Department of Neurosurgery, Peking University People's Hospital, Beijing, China
| | - Haidong Song
- Department of Neurosurgery, Peking University People's Hospital, Beijing, China
| | - Ruen Liu
- Department of Neurosurgery, Peking University People's Hospital, Beijing, China
| |
Collapse
|
9
|
Efficacy of Second Operation for Hemifacial Spasm Within 1 Week After Ineffective Microvascular Decompression. J Craniofac Surg 2021; 32:e495-e498. [PMID: 33496517 DOI: 10.1097/scs.0000000000007470] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022] Open
Abstract
OBJECTIVE To evaluate the efficacy of the second operation within 1 week after ineffective microvascular decompression (MVD) for patients with primary hemifacial spasm (HFS), and to find out the causes of failure. METHODS The surgery records and postoperative follow-ups of 52 primary HFS patients who had poor relief of spasm after their first MVDs were investigated. Patients were divided into 2 groups. Group A included 46 patients (16 males and 30 females) that went through the second operation within 1 week after the failure of the first MVD. Group B included 6 patients (3 males and 3 females) which did not take the reoperation. The level of spasm of each patient was then re-evaluated 1 year after the first surgery. RESULTS Among 52 patients who had poor relief after the first MVD between April 2016 and October 2019, 46 patients underwent a second MVD within 1 week while 6 patients refused to take the reoperation. Their mean duration of HFS was 102.4 ± 57.9 months. During reoperations for patients in group A, we discovered additional sites of neurovascular compression in 11 cases (23.91%). Forty-five patients (97.82%) in group A achieved complete relief 1 year after the second surgery while there was 1 recurrent case. Four patients (66.67%) in group B achieved delayed relief 1 year after the first surgery, while the other 2 patients were still suffering facial spasm in the 1-year follow-up. Group A demonstrated higher relief rate compared to group B in the 1 year follow up (P = 0.032). Although no severe complications occurred on patients in both group, 4 of them suffered grade II facial palsy, and another 3 patients had developed mild temporary hearing loss on the operation side. CONCLUSION The second operation within 1 week after an ineffective MVD is safe and effective. Full revealing of root exit zone and making sure no neurovascular compression missed with abnormal muscle response monitoring are the keys to a successful MVD.
Collapse
|
10
|
Li L, Yang H, Li J, Zeng Y, Li P, Lei D, Zhang H. Culprit vascular patterns and surgical outcomes of hemifacial spasm caused by an AICA segment passing between cranial nerve VII and VIII: A series of 25 cases. Clin Neurol Neurosurg 2021; 207:106777. [PMID: 34293657 DOI: 10.1016/j.clineuro.2021.106777] [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: 03/13/2021] [Revised: 06/17/2021] [Accepted: 06/18/2021] [Indexed: 02/08/2023]
Abstract
OBJECTIVE To report the vascular anatomic characteristics and surgical outcomes of hemifacial spasm (HFS) caused by an anterior inferior cerebellar artery (AICA) segment passing between cranial nerve VII (CN VII) and cranial nerve VIII (CN VIII). PATIENTS AND METHODS This case series study retrospectively reviewed records of 1040 consecutive patients treated with MVD for HFS in our hospital in 10 years. 25 patients had the culprit vessel recorded as an AICA segment passing between CN VII and CN VIII. Vascular anatomic characteristics were reviewed from intraoperative microscopic videos. The clinical outcomes were followed up at 3-month and 1-year time points. RESULTS The culprit AICA segments feature 3 discrete anatomic patterns. The patterns denoted as pattern A, B, and C were identified in 19(76%), 3(12%), and 3 (12%) of the 25 patients respectively. Postoperative spasm relief were achieved in 19(76%), 22(88%), and 23 (92%) of the patients at immediately after surgery, 3-month, and 1-year follow-up respectively. 3(12%) of them have permanent postoperative cranial nerve deficits, including one patient with hearing loss and 2 patients with vocal cord palsy. CONCLUSIONS Though an AICA segment passing between CN VII and CN VIII is common, very rarely it was deemed the culprit for HFS in our patients. We used fREZ centered definition and operation. We found the culprit AICA segments feature 3 discrete anatomic patterns. We observed good spasm relief outcome and relatively fewer complications with CN VII and CN VIII. Identifying the 3 anatomic patterns may help with a smooth decision-making when vascular compression by an AICA segment passing between CN VII and CN VIII is suspected.
Collapse
Affiliation(s)
- Luying Li
- Department of Neurosurgery, West China Hospital of Sichuan University, Chengdu, China
| | - Hui Yang
- Department of Neurosurgery, People's Second Hospital of Tibet Autonomous Region, Lasha, Autonomous region of Tibet, China
| | - Jie Li
- Department of Emergency, Qingdao Hospital of Traditional Chinese Medicine, Qingdao, China
| | - Yijun Zeng
- Department of Neurosurgery, People's Hospital of Dujiangyan, Dujiangyan, Chengdu, China
| | - Peng Li
- Department of Neurosurgery, West China Hospital of Sichuan University, Chengdu, China
| | - Ding Lei
- Department of Neurosurgery, West China Hospital of Sichuan University, Chengdu, China
| | - Heng Zhang
- Department of Neurosurgery, West China Hospital of Sichuan University, Chengdu, China.
| |
Collapse
|
11
|
Hemifacial spasm caused by a tortuous recurrent perforating artery: A case report. Neurochirurgie 2021; 67:487-490. [PMID: 33845113 DOI: 10.1016/j.neuchi.2021.03.015] [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: 12/24/2020] [Revised: 02/12/2021] [Accepted: 03/06/2021] [Indexed: 02/05/2023]
Abstract
INTRODUCTION When the culprit vessel in hemifacial spasm (HFS) is hard to determine, this is a challenge in microvascular decompression (MVD) surgery. In such a situation, small arteries such as perforators to the brainstem might be suspected. But small arteries are omnipresent near the facial nerve root exit/entry zone (fREZ). How to decide whether a given small artery is responsible for HFS is unclear. METHOD We report a case with a previously unreported form of neurovascular impingement, in which the culprit was found to be the recurrent perforating artery (RPA) from the anterior inferior cerebellar artery (AICA). An aberrant anatomic configuration of the RPA was found intraoperatively, which we thought was responsible for generating focal pressure on the facial nerve. CASE REPORT A 62-year-old woman presented with a 1-year history of paroxysmal but increasingly frequent twitching in her right face. MRI showed tortuosity of the vertebral artery and apparently marked neurovascular impingement on the asymptomatic left side, while only the right AICA could be implicated as the possible culprit. Hemifacial spasm was diagnosed based on the typical clinical manifestation, and MVD was performed. The pre-meatal segment of the AICA was found not to be impinging the facial nerve at any susceptible portion near the fREZ: root exit point, attached segment, or root detachment point. The real culprit was in fact the RPA. This occult culprit vessel was tortuous, forming a coil-shaped twist which was interposed between the facial nerve and the intermediate nerve near the root detachment point. Focal pressure atrophy of the nerve was clearly observed at the compressing site. The patient achieved total spasm relief immediately after surgery, and remained spasm-free at 1-year follow-up, without any postoperative complications. CONCLUSION MVD is the only curative treatment for hemifacial spasm, but with a failure rate of around 10%. Mistaking the real culprit has been reported to be the most likely reason for surgical failure. Therefore, intraoperative identification of atypical occult forms of vascular compression is of importance to improve surgical outcome. In the present case, the RPA formed a coil-shaped twist, which inflicted focal vascular compression causing hemifacial spasm. We recommend careful inspection of the recurrent perforating artery during MVD for HFS, and decompressing any such neurovascular impingement.
Collapse
|
12
|
Challenging Microvascular Decompression Surgery for Hemifacial Spasm. World Neurosurg 2021; 151:e94-e99. [PMID: 33819711 DOI: 10.1016/j.wneu.2021.03.133] [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: 10/27/2020] [Revised: 03/24/2021] [Accepted: 03/25/2021] [Indexed: 11/21/2022]
Abstract
OBJECTIVE Microvascular decompression (MVD) is the most effective treatment for hemifacial spasm (HFS). However, surgical difficulties due to complex anatomy or revision surgery can endanger the functional integrity of the brainstem. We describe surgically challenging cases and provide operative guidance that may be helpful for neurosurgeons who perform MVDs. METHODS Of 3028 patients with HFS who underwent MVDs consecutively by a single neurosurgeon, complex or unusual cases associated with surgical difficulty were selected. Medical charts and images were reviewed, with the primary focus being intraoperative findings, operative techniques, and clinical outcomes. All MVDs were performed using the interposition method. RESULTS Surgically difficult cases were categorized into six types: tandem, perforator, atypical location, encircling, revision, and penetrating types. During the follow-up period (11.5-42.7 months; median 24.9 months), the spasm-free rate was 88.4%. Intraoperative changes in brainstem auditory evoked potentials were observed in 31.5% of patients. Immediate postoperative facial palsy and deafness were observed in 6.0% and 1.5% of patients, respectively. Revision surgery showed the highest surgical morbidity among the unusual HFS types. Detailed illustrations and descriptions of MVD in patients with surgically challenging HFS are provided. CONCLUSIONS Complex or unusual HFS types carry higher surgical risks in MVD. Neurosurgeons performing MVDs need to be prepared to manage complex HFS cases in order to achieve favorable clinical outcomes.
Collapse
|
13
|
Nugroho SW, Perkasa SAH, Gunawan K, Manuhutu YN, Rahman MA, Rizky A. Predicting outcome of hemifacial spasm after microvascular decompression with intraoperative monitoring: A systematic review. Heliyon 2021; 7:e06115. [PMID: 33644443 PMCID: PMC7889992 DOI: 10.1016/j.heliyon.2021.e06115] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/09/2020] [Revised: 10/07/2020] [Accepted: 01/25/2021] [Indexed: 11/23/2022] Open
Abstract
BACKGROUND Microvascular decompression has been established as a primary treatment for hemifacial spasm. Intraoperative monitoring is used during the surgery to guide neurosurgeons to determine whether the decompression of facial nerve from the vessel is sufficient. We performed a systematic review to assess the role of lateral spread response (LSR) monitoring in predicting hemifacial spasm outcomes after microvascular decompression. METHOD A systematic search of PubMed, ScienceDirect, Cochrane, and Google Scholar was conducted. We included studies that performed microvascular decompression surgery with intraoperative monitoring analyzing the correlation between lateral spread response and spasm relief. A critical appraisal was conducted for selected studies. RESULT Twenty-two studies comprising 6404 cases of hemifacial spasm, which underwent microvascular decompression surgery with intraoperative monitoring, were included. Of 15 articles that assessed symptoms shortly after surgery, 12 studies showed a significant correlation between lateral spread response resolution and disappearance of spasm. Four of six studies that evaluated the outcome at 3-month follow-up showed significant relationship between LSR and outcome, so did five of six articles that assessed spasm relief at 6-month follow-up. As much as 62.5% of studies (10 of 16) showed the result at long-term follow-up (≥1-year) was not significant. CONCLUSION Intraoperative monitoring during microvascular decompression surgery can be a useful tool to predict hemifacial spasm resolution. Though long-term outcomes of patients with LSR relief and persistence are similar, resolution of symptoms shortly after surgery will provide comfort to patients thereby improving their quality of life.
Collapse
Affiliation(s)
- Setyo Widi Nugroho
- Neurofunctional Division, Department of Neurosurgery, Faculty of Medicine, Universitas Indonesia, Dr. Cipto Mangunkusumo General Hospital, Indonesia
| | - Sayyid Abdil Hakam Perkasa
- Neurofunctional Division, Department of Neurosurgery, Faculty of Medicine, Universitas Indonesia, Dr. Cipto Mangunkusumo General Hospital, Indonesia
| | - Kevin Gunawan
- Neurofunctional Division, Department of Neurosurgery, Faculty of Medicine, Universitas Indonesia, Dr. Cipto Mangunkusumo General Hospital, Indonesia
| | - Yovanka Naryai Manuhutu
- Neurofunctional Division, Department of Neurosurgery, Faculty of Medicine, Universitas Indonesia, Dr. Cipto Mangunkusumo General Hospital, Indonesia
| | - Muhamad Aulia Rahman
- Neurofunctional Division, Department of Neurosurgery, Faculty of Medicine, Universitas Indonesia, Dr. Cipto Mangunkusumo General Hospital, Indonesia
| | - Amal Rizky
- Neurofunctional Division, Department of Neurosurgery, Faculty of Medicine, Universitas Indonesia, Dr. Cipto Mangunkusumo General Hospital, Indonesia
| |
Collapse
|
14
|
Flat-shaped posterior cranial fossa was associated with poor outcomes of microvascular decompression for primary hemifacial spasm. Acta Neurochir (Wien) 2020; 162:2801-2809. [PMID: 32930877 DOI: 10.1007/s00701-020-04547-8] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/17/2020] [Accepted: 08/19/2020] [Indexed: 10/23/2022]
Abstract
BACKGROUND Numerous factors have been investigated on affecting the outcomes of primary hemifacial spasm (HFS) after microvascular decompression (MVD). It is well established that anatomical differences of the posterior cranial fossa (PCF) plays an important role in the occurrence of HFS. However, it is still not clear whether morphological characteristics of PCF affect the surgical outcomes of HFS after MVD. Our study aims to investigate the prognostic factors for surgical outcomes of MVD for primary HFS, with a particular focus on the morphological characteristics of PCF. METHODS Between January 2014 and November 2017, a total of 152 HFS patients who underwent MVD treatment in our department were included in this study. The clinical data were retrospectively reviewed. The outcomes of MVD were classified into success and failure groups according to the short- and long-term postoperative responses. Particularly, we established an ellipsoid model for PCF. The related length (Y), width (X) and height (Z) of the PCF were measured and the volume of PCF was calculated employing a formula of [Formula: see text]XYZ. The relationship between PCF volume and surgical outcomes was statistically analysed. RESULTS The severity of neurovascular compression (NVC) (p = 0.010), type of NVC (p = 0.001) and lateral spread response (LSR) (p < 0.0001) significantly influenced the long-term surgical outcomes of MVD for primary HFS. In particular, for the first time, we demonstrated that a flat-shaped PCF was associated with poor long-term outcome and postoperative recurrence. CONCLUSIONS Our current study suggests that mild NVC, small vessel compression, intraoperative LSR persistence and flat-shaped PCF are independent factors predicting poor prognosis of MVD for primary HFS.
Collapse
|
15
|
Seaman SC, Noeller J, Nourski K, Hitchon PW. Case report of recurrent hemifacial spasm attributed to over-impaction with Teflon sponge. Surg Neurol Int 2020; 11:110. [PMID: 35592012 PMCID: PMC9115890 DOI: 10.25259/sni_95_2020] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/10/2020] [Accepted: 04/20/2020] [Indexed: 11/30/2022] Open
Abstract
Background: Hemifacial spasm (HS) is a muscular disorder frequently exacerbated by arterial compression amenable to surgical intervention through microvascular decompression (MVD). Recurrence is a known cause and warrants investigation. Case Description: A 65-year-old woman presented with the left HS of 7 years duration. Her symptoms were initially well controlled with botulinum toxin injections. However, these injections eventually lost their effectiveness, necessitating MVD. At surgery, the anterior inferior cerebellar artery was indenting the facial nerve at its root entry zone. This was carefully dissected away, and several Teflon (polytetrafluoroethylene) felt pledgets were used for decompression. Postoperatively, the patient reported great improvement of her symptoms for 3 months. Gradually her spasms returned, intermittently at first, until finally they became persistent 6 months postoperatively. An MRI was obtained showing elevation and posterior displacement of the VII-VIII complex by the pledgets. After failing to improve, the patient opted for reoperation 10 months after initial MVD. At surgery, the Teflon pledgets were displacing the VII-III nerves posteriorly and superiorly. The Teflon pledgets were dissected free, and the nerve dis-impacted. On her postoperative visit 1 year later, she is spasm free, subjectively, and objectively. Conclusion: This case illustrates the value of re-imaging recurrent HS, and re-exploration with a favorable rkesult.
Collapse
|
16
|
Feng BH, Zhong WX, Li ST, Wang XH. Fully endoscopic microvascular decompression of the hemifacial spasm: our experience. Acta Neurochir (Wien) 2020; 162:1081-1087. [PMID: 32133573 DOI: 10.1007/s00701-020-04245-5] [Citation(s) in RCA: 13] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/22/2019] [Accepted: 01/23/2020] [Indexed: 02/05/2023]
Abstract
PURPOSE Microvascular decompression (MVD) surgery has been accepted as a potentially curative method for hemifacial spasm (HFS). The primary cause of failure of MVD is incomplete decompression of the offending vessel due to inadequate visualization. This study is aimed at evaluating the benefit of endoscopic visualization and the value of fully endoscopic MVD. METHODS From March 2016 to March 2018, 45 HFS patients underwent fully endoscopic MVD in our department. From opening the dura to preparing to close, the assistant held the endoscope and the surgeon operated. Abnormal muscle response (AMR) and brainstem auditory evoked potentials (BAEP) were monitored. For every patient, the offending vessel was transposed or interposed and achieved complete decompression. AMR was used to evaluate the adequacy of decompression at the end of the surgery. The intra-operative findings and postoperative outcomes and complications were analyzed. RESULTS Immediately after surgeries, 39 patients (86.7%) achieved excellent result; 2 cases (4.4%) had good result. So the postoperative effective rate was 91.1% (41/45). During 12-36 month follow-up, the outcomes were excellent in 42 cases (93.3%) and good in 2 cases (4.4%), and the effective rate reached to 97.8% (44/45). No recurrence was noted. The postoperative complications were found in 2 patients (4.4%). One patient (2.2%) showed delayed facial palsy on the tenth day but was fully recovered 1 month later. Intracranial infection was noticed in 1 patient (2.2%) and was cured by using intravenous antibiotics for 2 weeks. There was no hearing impairment, hoarseness, or other complications. CONCLUSIONS Fully endoscopic MVD is both safe and effective in the treatment of HFS. Electrophysiological monitoring is helpful to gain a good result and reduce hearing impairment.
Collapse
Affiliation(s)
- Bao-Hui Feng
- Department of Neurosurgery, Xinhua Hospital Affiliated to Shanghai JiaoTong University School of Medicine, the Cranial Nerve Disease Center of Shanghai JiaoTong University, Shanghai, 200092, China
| | - Wen-Xiang Zhong
- Department of Neurosurgery, Xinhua Hospital Affiliated to Shanghai JiaoTong University School of Medicine, the Cranial Nerve Disease Center of Shanghai JiaoTong University, Shanghai, 200092, China
| | - Shi-Ting Li
- Department of Neurosurgery, Xinhua Hospital Affiliated to Shanghai JiaoTong University School of Medicine, the Cranial Nerve Disease Center of Shanghai JiaoTong University, Shanghai, 200092, China
| | - Xu-Hui Wang
- Department of Neurosurgery, Xinhua Hospital Affiliated to Shanghai JiaoTong University School of Medicine, the Cranial Nerve Disease Center of Shanghai JiaoTong University, Shanghai, 200092, China.
- Department of Neurosurgery, Xinhua Hospital Affiliated to Shanghai JiaoTong University School of Medicine, Chongming Branch, Shanghai, 202150, China.
| |
Collapse
|
17
|
Zhang J, Li ZH, Wang JF, Chen YH, Wang N, Wang Y. Prognostic Value of Abnormal Muscle Response During Microvascular Decompression for Hemifacial Spasm: A Meta-Analysis. World Neurosurg 2020; 137:8-17. [PMID: 32006731 DOI: 10.1016/j.wneu.2020.01.166] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/31/2019] [Revised: 01/20/2020] [Accepted: 01/21/2020] [Indexed: 11/19/2022]
Abstract
OBJECTIVE To perform a comprehensive meta-analysis to systematically assess the value of abnormal muscle response (AMR) in predicting the surgical outcome of patients with hemifacial spasm. METHODS The electronic database PubMed, Embase, Web of Science, and ScienceDirect were searched, and relevant articles were identified up to September 30, 2019. These data were extracted for pooled analysis, heterogeneity testing, sensitivity analysis, publication bias analysis, and Fagan plot analysis. RESULTS The disappearance of AMR during microvascular decompression was associated with a favorable short-term surgical outcome (pooled relative risk [RR], 1.42; 95% confidence interval [CI], 1.24-1.62; pooled RR adjusted for publication bias, 1.30; 95% CI, 1.08-1.57). The corresponding pooled sensitivity, specificity, positive likelihood ratio, negative likelihood ratio, and diagnostic odds ratio were 0.91 (95% CI, 0.88-0.94), 0.34 (95% CI, 0.27-0.42), 1.4 (95% CI, 1.2-1.6), 0.26 (95% CI, 0.17-0.38), and 5 (95% CI, 3-9), respectively. The disappearance of AMR was almost ineffective in predicting the long-term surgical outcome (pooled RR, 1.09; 95% CI, 1.02-1.17; pooled RR adjusted for publication bias, 1.001; 95% CI, 0.92-1.09). The corresponding pooled sensitivity, specificity, positive likelihood ratio, negative likelihood ratio, and diagnostic odds ratio were 0.90 (95% CI, 0.85-0.93), 0.28 (95% CI, 0.20-0.37), 1.2 (95% CI, 1.1-1.4), 0.38 (95% CI, 0.22-0.63), and 3 (95% CI, 2-6), respectively. CONCLUSIONS The disappearance of AMR during microvascular decompression demonstrates limited prognostic value for a favorable short-term outcome, and does not appear effective in predicting the long-term outcome of patients with hemifacial spasm.
Collapse
Affiliation(s)
- Jie Zhang
- Department of Neuroelectrophysiology, Cangzhou Central Hospital, Yunhe District, Cangzhou, Hebei, People's Republic of China
| | - Zong-Hao Li
- Department of Neurosurgery, Cangzhou Central Hospital, Yunhe District, Cangzhou, Hebei, People's Republic of China.
| | - Jin-Feng Wang
- Department of Neuroelectrophysiology, Cangzhou Central Hospital, Yunhe District, Cangzhou, Hebei, People's Republic of China
| | - Yong-Han Chen
- Department of Neurosurgery, Cangzhou Central Hospital, Yunhe District, Cangzhou, Hebei, People's Republic of China
| | - Ning Wang
- Department of Neuroelectrophysiology, Cangzhou Central Hospital, Yunhe District, Cangzhou, Hebei, People's Republic of China
| | - Yi Wang
- Department of Neurosurgery, Cangzhou Central Hospital, Yunhe District, Cangzhou, Hebei, People's Republic of China
| |
Collapse
|