Mohammad Mazhar Khan, Abinash Dutta, Deepak Rajappa, Dattatraya Mallik, Matias Baldoncini, Carlos Castillo Rangel, Bipin Chaurasia
{"title":"小脑角肿瘤中面神经电运动诱发电位的解剖和功能保留。","authors":"Mohammad Mazhar Khan, Abinash Dutta, Deepak Rajappa, Dattatraya Mallik, Matias Baldoncini, Carlos Castillo Rangel, Bipin Chaurasia","doi":"10.25259/SNI_14_2024","DOIUrl":null,"url":null,"abstract":"<p><strong>Background: </strong>Among the technical measures to preserve facial nerve (FN) function, intraoperative neuromonitoring has become mandatory and is constantly being scrutinized. Hence, to determine the efficacy of FN motor evoked potentials (FNMEPs) in predicting long-term motor FN function following cerebellopontine angle (CPA) tumor surgery, an analysis of cases was done.</p><p><strong>Methods: </strong>In 37 patients who underwent CPA surgery, FNMEPs through corkscrew electrodes positioned at C5-C6 and C6-C5 (C is the central line of the brain as per 10-20 EEG electrode placement) were used to deliver short train stimuli and recorded from the orbicularis oculi, oris, and mentalis muscles.</p><p><strong>Results: </strong>In 58 patients, triggered electromyography (EMG) was able to identify the FN during resection of tumor, but 8 out of these (4.64%) patients developed new facial weakness, whereas 3 out of 38 (1.11%) patients who had intact FN function MEP (decrement of FN target muscles - CMAPs amplitude peak to peak >50-60%), developed new facial weakness (House and Brackmann grade II to III).</p><p><strong>Conclusion: </strong>The FNMEP has significant superiority over triggered EMG when tumor is giant and envelops the FN.</p>","PeriodicalId":94217,"journal":{"name":"Surgical neurology international","volume":null,"pages":null},"PeriodicalIF":0.0000,"publicationDate":"2024-05-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11152508/pdf/","citationCount":"0","resultStr":"{\"title\":\"Facial nerve electrical motor evoked potential in cerebellopontine angle tumors for its anatomical and functional preservation.\",\"authors\":\"Mohammad Mazhar Khan, Abinash Dutta, Deepak Rajappa, Dattatraya Mallik, Matias Baldoncini, Carlos Castillo Rangel, Bipin Chaurasia\",\"doi\":\"10.25259/SNI_14_2024\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"<p><strong>Background: </strong>Among the technical measures to preserve facial nerve (FN) function, intraoperative neuromonitoring has become mandatory and is constantly being scrutinized. Hence, to determine the efficacy of FN motor evoked potentials (FNMEPs) in predicting long-term motor FN function following cerebellopontine angle (CPA) tumor surgery, an analysis of cases was done.</p><p><strong>Methods: </strong>In 37 patients who underwent CPA surgery, FNMEPs through corkscrew electrodes positioned at C5-C6 and C6-C5 (C is the central line of the brain as per 10-20 EEG electrode placement) were used to deliver short train stimuli and recorded from the orbicularis oculi, oris, and mentalis muscles.</p><p><strong>Results: </strong>In 58 patients, triggered electromyography (EMG) was able to identify the FN during resection of tumor, but 8 out of these (4.64%) patients developed new facial weakness, whereas 3 out of 38 (1.11%) patients who had intact FN function MEP (decrement of FN target muscles - CMAPs amplitude peak to peak >50-60%), developed new facial weakness (House and Brackmann grade II to III).</p><p><strong>Conclusion: </strong>The FNMEP has significant superiority over triggered EMG when tumor is giant and envelops the FN.</p>\",\"PeriodicalId\":94217,\"journal\":{\"name\":\"Surgical neurology international\",\"volume\":null,\"pages\":null},\"PeriodicalIF\":0.0000,\"publicationDate\":\"2024-05-31\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11152508/pdf/\",\"citationCount\":\"0\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"Surgical neurology international\",\"FirstCategoryId\":\"1085\",\"ListUrlMain\":\"https://doi.org/10.25259/SNI_14_2024\",\"RegionNum\":0,\"RegionCategory\":null,\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"2024/1/1 0:00:00\",\"PubModel\":\"eCollection\",\"JCR\":\"\",\"JCRName\":\"\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"Surgical neurology international","FirstCategoryId":"1085","ListUrlMain":"https://doi.org/10.25259/SNI_14_2024","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"2024/1/1 0:00:00","PubModel":"eCollection","JCR":"","JCRName":"","Score":null,"Total":0}
Facial nerve electrical motor evoked potential in cerebellopontine angle tumors for its anatomical and functional preservation.
Background: Among the technical measures to preserve facial nerve (FN) function, intraoperative neuromonitoring has become mandatory and is constantly being scrutinized. Hence, to determine the efficacy of FN motor evoked potentials (FNMEPs) in predicting long-term motor FN function following cerebellopontine angle (CPA) tumor surgery, an analysis of cases was done.
Methods: In 37 patients who underwent CPA surgery, FNMEPs through corkscrew electrodes positioned at C5-C6 and C6-C5 (C is the central line of the brain as per 10-20 EEG electrode placement) were used to deliver short train stimuli and recorded from the orbicularis oculi, oris, and mentalis muscles.
Results: In 58 patients, triggered electromyography (EMG) was able to identify the FN during resection of tumor, but 8 out of these (4.64%) patients developed new facial weakness, whereas 3 out of 38 (1.11%) patients who had intact FN function MEP (decrement of FN target muscles - CMAPs amplitude peak to peak >50-60%), developed new facial weakness (House and Brackmann grade II to III).
Conclusion: The FNMEP has significant superiority over triggered EMG when tumor is giant and envelops the FN.
求助内容：
应助结果提醒方式：
京公网安备 11010802042870号
