{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,8,7]],"date-time":"2026-08-07T17:30:58Z","timestamp":1786123858013,"version":"build-2736575974"},"reference-count":19,"publisher":"Ovid Technologies (Wolters Kluwer Health)","issue":"4","content-domain":{"domain":["lww.com","ovid.com"],"crossmark-restriction":true},"short-container-title":["Operative Surg.","ONSURG"],"published-print":{"date-parts":[[2018,4]]},"abstract":"<jats:title>Abstract<\/jats:title>\n                  <jats:sec>\n                    <jats:title>BACKGROUND AND IMPORTANCE<\/jats:title>\n                    <jats:p>Stereotactic biopsies or needle aspirations of posterior fossa lesions are technically challenging. Here we report a novel technique for performing these procedures employing the Airo\u2122 intraoperative computed tomographic (CT) scanner and the VarioGuide\u2122 articulated arm (BrainLab, Munich, Germany).<\/jats:p>\n                  <\/jats:sec>\n                  <jats:sec>\n                    <jats:title>CLINICAL PRESENTATION<\/jats:title>\n                    <jats:p>A 62-yr-old woman presented with an irregularly shaped, enhancing lesion of the left pons\/middle cerebellar peduncle. Slowed diffusion on magnetic resonance imaging suggested an abscess, but no definitive infectious agent\/source could be identified. When the patient deteriorated despite broad-spectrum antibiotic therapy, she was taken to the operating room for stereotactic drainage of the abscess employing the described technique. A specific infectious agent (Eikenella corrodens) was identified from the aspirate, allowing for tailored antibiotic therapy. The procedure was well tolerated and the patient made a full recovery with minimal neurological sequelae.<\/jats:p>\n                  <\/jats:sec>\n                  <jats:sec>\n                    <jats:title>CONCLUSION<\/jats:title>\n                    <jats:p>The combination of the Airo\u2122 intraoperative CT and the Varioguide\u2122 articulated arm allows for safe, accurate, and efficient targeting of posterior fossa lesions.<\/jats:p>\n                  <\/jats:sec>","DOI":"10.1093\/ons\/opx126","type":"journal-article","created":{"date-parts":[[2017,8,12]],"date-time":"2017-08-12T02:19:23Z","timestamp":1502504363000},"page":"E46-E50","update-policy":"https:\/\/doi.org\/10.1097\/lww.0000000000001000","source":"Crossref","is-referenced-by-count":4,"title":["Stereotactic Drainage of Brainstem Abscess With the BrainLab Varioguide\u2122 System and the Airo\u2122 Intraoperative CT Scanner: Technical Case Report"],"prefix":"10.1227","volume":"14","author":[{"given":"Cesar C","family":"Almeida","sequence":"first","affiliation":[{"name":"Department of Neurology, Division of Neurosurgery, University of S\u00e3o Paulo Medical School (FMUSP), S\u00e3o Paulo, Brazil"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Ayse","family":"Uzuner","sequence":"additional","affiliation":[{"name":"Marmara University School of Medicine, Istanbul, Turkey"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Ron L","family":"Alterman","sequence":"additional","affiliation":[{"name":"Division of Neurosurgery, Beth Israel Deaconess Medical Center, Boston, Massachusetts"}],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"276","published-online":{"date-parts":[[2018,4]]},"reference":[{"issue":"1","key":"bib1-20240909","doi-asserted-by":"crossref","first-page":"161","DOI":"10.4103\/2152-7806.167087","article-title":"A case of a brain stem abscess with a favorable outcome","volume":"6","author":"Bulthuis","year":"2015","journal-title":"Surg Neurol Int"},{"issue":"2","key":"bib2-20240909","doi-asserted-by":"crossref","first-page":"121","DOI":"10.1590\/1516-3180.2014.1322635","article-title":"Brainstem abscess of undetermined origin: microsurgical drainage and brief antibiotic therapy","volume":"132","author":"Hamamoto Filho","year":"2014","journal-title":"Sao Paulo Med J"},{"issue":"7","key":"bib3-20240909","doi-asserted-by":"crossref","first-page":"1053","DOI":"10.1007\/s00381-011-1441-x","article-title":"Diagnostic and management of pediatric brain stem abscess, a case-based update","volume":"27","author":"Ghannane","year":"2011","journal-title":"Childs Nerv Syst"},{"issue":"1","key":"bib4-20240909","doi-asserted-by":"crossref","first-page":"27","DOI":"10.1007\/s00381-004-1024-1","article-title":"Brain stem abscesses in childhood","volume":"21","author":"Suzer","year":"2005","journal-title":"Child's Nerv Syst"},{"issue":"8","key":"bib5-20240909","doi-asserted-by":"crossref","first-page":"855","DOI":"10.1179\/016164101101199306","article-title":"Brain-stem abscess successfully treated by microsurgical drainage: a case report","volume":"23","author":"Sarma","year":"2001","journal-title":"Neurol Res"},{"issue":"2","key":"bib6-20240909","doi-asserted-by":"crossref","first-page":"368","DOI":"10.1227\/00006123-199402000-00025","article-title":"Successful stereotactic management of a large cardiogenic brain stem abscess","volume":"34","author":"Rajshekhar","year":"1994","journal-title":"Neurosurgery"},{"issue":"5","key":"bib7-20240909","doi-asserted-by":"crossref","first-page":"447","DOI":"10.1056\/NEJMra1301635","article-title":"Brain abscess","volume":"371","author":"Brouwer","year":"2014","journal-title":"N Engl J Med"},{"issue":"3","key":"bib8-20240909","first-page":"386","article-title":"Pontine abscess: survival following surgical drainage","volume":"40","author":"VanGilder","year":"1974","journal-title":"Case report. 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