{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,10,17]],"date-time":"2026-10-17T01:40:14Z","timestamp":1792201214736,"version":"4.4.0"},"reference-count":37,"publisher":"Journal of Neurosurgery Publishing Group (JNSPG)","issue":"3","content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":[],"published-print":{"date-parts":[[2021,9]]},"abstract":"<jats:sec>\n                    <jats:title>OBJECTIVE<\/jats:title>\n                    <jats:p>Multiple short series have evaluated the efficacy of salvage microsurgery (MS) after stereotactic radiosurgery (SRS) for treatment of vestibular schwannomas (VSs); however, there is a lack of a large volume of patient data available for interpretation and clinical adaptation. The goal of this study was to provide a comprehensive review of tumor characteristics, management, and surgical outcomes of salvage of MS after SRS for VS.<\/jats:p>\n                  <\/jats:sec>\n                  <jats:sec>\n                    <jats:title>METHODS<\/jats:title>\n                    <jats:p>The Medline\/PubMed, Scopus, CINAHL, Cochrane Library, and Google Scholar databases were queried according to PRISMA guidelines. All English-language and translated publications were included. Studies lacking adequate study characteristics and outcomes were excluded. Cases involving neurofibromatosis type 2, previous MS, or malignant transformation were excluded when possible.<\/jats:p>\n                  <\/jats:sec>\n                  <jats:sec>\n                    <jats:title>RESULTS<\/jats:title>\n                    <jats:p>\n                      Twenty studies containing 297 cases met inclusion criteria. Three additional cases from Rush University Medical Center were added for 300 total cases. Tumor growth with or without symptoms was the primary indication for salvage surgery (92.3% of cases), followed by worsening of symptoms without growth (4.6%) and cystic enlargement (3.1%). The average time to MS after SRS was 39.4 months. The average size and volume of tumor at surgery were 2.44 cm and 5.92 cm\n                      <jats:sup>3<\/jats:sup>\n                      , respectively. The surgical approach was retrosigmoid (42.8%) and translabyrinthine (57.2%); 59.5% of patients had a House-Brackmann (HB) grade of I or II. The facial nerve was preserved in 91.5% of cases. Facial nerve preservation and HB grades were lower for the translabyrinthine versus retrosigmoid approach (p = 0.31 and p = 0.18, respectively); however, fewer complications were noted in the translabyrinthine approach (p = 0.29). Gross-total resection (GTR) was completed in 55.7% of surgeries. Studies that predominantly used subtotal resection (STR) were associated with a lower rate of facial nerve injury (5.3% vs 11.3%, p = 0.07) and higher rate of HB grade I or II (72.9% vs 48.0%, p = 0.00003) versus those using predominantly GTR. However, majority STR was associated with a recurrence rate of 3.6% as compared to 1.4% for majority GTR (p = 0.29).\n                    <\/jats:p>\n                  <\/jats:sec>\n                  <jats:sec>\n                    <jats:title>CONCLUSIONS<\/jats:title>\n                    <jats:p>This study showed that the leading cause of MS after SRS was tumor growth at an average of 39.4 months after radiation. There were no significant differences in outcomes of facial nerve preservation, postoperative HB grade, or complication rate based on surgical approach. Patients who underwent STR showed statistically significant better HB outcomes compared with GTR. MS after SRS was considered by most authors to be more difficult than primary MS. These data support the notion that the surgical goals of salvage surgery are debulking of tumor mass, decreasing compression of the brainstem, and not necessarily pursuing GTR.<\/jats:p>\n                  <\/jats:sec>","DOI":"10.3171\/2020.7.jns2044","type":"journal-article","created":{"date-parts":[[2020,11,27]],"date-time":"2020-11-27T02:45:43Z","timestamp":1606445143000},"page":"881-889","source":"Crossref","is-referenced-by-count":21,"title":["Resection of vestibular schwannomas after stereotactic radiosurgery: a systematic review"],"prefix":"10.3171","volume":"135","author":[{"given":"Max","family":"Whitmeyer","sequence":"first","affiliation":[{"name":"Ohio State University College of Medicine, Columbus, Ohio;"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Bledi C.","family":"Brahimaj","sequence":"additional","affiliation":[{"name":"Department of Neurological Surgery, Rush University Medical Center, Chicago;"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Andr\u00e9","family":"Beer-Furlan","sequence":"additional","affiliation":[{"name":"Department of Neurological Surgery, Rush University Medical Center, Chicago;"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Sameer","family":"Alvi","sequence":"additional","affiliation":[{"name":"Northwestern Medicine, Geneva;"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Madeline J.","family":"Epsten","sequence":"additional","affiliation":[{"name":"Rush Medical College, Chicago; and"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Fred","family":"Crawford","sequence":"additional","affiliation":[{"name":"Rush Medical College, Chicago; and"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Richard W.","family":"Byrne","sequence":"additional","affiliation":[{"name":"Department of Neurological Surgery, Rush University Medical Center, Chicago;"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"R. 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