{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,10,2]],"date-time":"2026-10-02T19:40:57Z","timestamp":1790970057502,"version":"4.1.0"},"reference-count":0,"publisher":"Georg Thieme Verlag KG","issue":"01","content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["J Neurol Surg B"],"published-print":{"date-parts":[[2019,2]]},"abstract":"<jats:p>\n            Objective\u2003To investigate risk factors for symptom recurrence in patients requiring a revision microvascular decompression (MVD) for trigeminal neuralgia (TN) or hemifacial spasm (HFS).<\/jats:p><jats:p>\n            Design\u2003Retrospective review of a prospectively maintained database.<\/jats:p><jats:p>\n            Participants\u2003Seventeen consecutive patients undergoing revision MVD at our institution between January 1993 and September 2017.<\/jats:p><jats:p>\n            Main Outcome Measures\u2003The incidence and causes for revision MVDs were recorded. Response to revision MVD for TN was tracked using the Barrow Neurological Institute (BNI) grading scale. Response to revision MVD for HFS was graded as \u201cno improvement,\u201d \u201csome relief,\u201d or \u201ccomplete resolution\u201d of symptoms.<\/jats:p><jats:p>\n            Results\u2003Revision MVD rate for the senior author across all MVDs performed in this period was 1.9% for TN and 9.3% for HFS. Initial MVD failure was primarily caused by active inflammation and\/or scarring and adhesions in 5\/17 patients, malposition\/slippage of Teflon in 3\/17 patients, and insufficient Teflon in 1\/17 patients. Without other factors, a new site of neurovascular conflict was identified in 4\/17 patients, while the same site of neurovascular conflict was found in 3\/17 patients. No cause could be identified in 1\/17 patients. Scarring was found primarily in the TN group and was associated with symptom persistence.<\/jats:p><jats:p>\n            Conclusion\u2003Revision MVD for recurrent TN and HFS is an effective procedure offering the prospect of a complete cure. Proper Teflon use is crucial for surgical success. Scarring after initial MVD is a negative prognostic factor requiring destructive treatment consideration. Although morbidity rates were slightly increased with revision versus original MVDs, the complications were non-disabling and resolved over time.<\/jats:p>","DOI":"10.1055\/s-0038-1661348","type":"journal-article","created":{"date-parts":[[2018,6,30]],"date-time":"2018-06-30T05:30:34Z","timestamp":1530336634000},"page":"031-039","source":"Crossref","is-referenced-by-count":27,"title":["Revision Microvascular Decompression for Trigeminal Neuralgia and Hemifacial Spasm: Factors Associated with Surgical Failure"],"prefix":"10.1055","volume":"80","author":[{"given":"Kristine","family":"Ravina","sequence":"additional","affiliation":[{"name":"Neurorestoration Center, Keck School of Medicine, University of Southern California, Los Angeles, California, United States"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Ben","family":"Strickland","sequence":"additional","affiliation":[{"name":"Neurorestoration Center, Keck School of Medicine, University of Southern California, Los Angeles, California, United States"},{"name":"Department of Neurological Surgery, Keck School of Medicine, University of Southern California, Los Angeles, California, United Sates"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Robert","family":"Rennert","sequence":"additional","affiliation":[{"name":"Department of Neurosurgery, University of California, San Diego, San Diego, California, United States"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Joshua","family":"Bakhsheshian","sequence":"additional","affiliation":[{"name":"Department of Neurological Surgery, Keck School of Medicine, University of Southern California, Los Angeles, California, United Sates"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Jonathan","family":"Russin","sequence":"additional","affiliation":[{"name":"Neurorestoration Center, Keck School of Medicine, University of Southern California, Los Angeles, California, United States"},{"name":"Department of Neurological Surgery, Keck School of Medicine, University of Southern California, Los Angeles, California, United Sates"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Steven","family":"Giannotta","sequence":"additional","affiliation":[{"name":"Department of Neurological Surgery, Keck School of Medicine, University of Southern California, Los Angeles, California, United Sates"}],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"194","published-online":{"date-parts":[[2018,6,29]]},"container-title":["Journal of Neurological Surgery Part B: Skull Base"],"original-title":[],"language":"en","link":[{"URL":"http:\/\/www.thieme-connect.de\/products\/ejournals\/pdf\/10.1055\/s-0038-1661348.pdf","content-type":"unspecified","content-version":"vor","intended-application":"similarity-checking"}],"deposited":{"date-parts":[[2019,5,6]],"date-time":"2019-05-06T21:18:02Z","timestamp":1557177482000},"score":1,"resource":{"primary":{"URL":"http:\/\/www.thieme-connect.de\/DOI\/DOI?10.1055\/s-0038-1661348"}},"subtitle":[],"short-title":[],"issued":{"date-parts":[[2018,6,29]]},"references-count":0,"journal-issue":{"issue":"01","published-online":{"date-parts":[[2019,2,6]]},"published-print":{"date-parts":[[2019,2]]}},"URL":"https:\/\/doi.org\/10.1055\/s-0038-1661348","relation":{},"ISSN":["2193-6331","2193-634X"],"issn-type":[{"value":"2193-6331","type":"print"},{"value":"2193-634X","type":"electronic"}],"subject":[],"published":{"date-parts":[[2018,6,29]]}}}