{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,10,17]],"date-time":"2026-10-17T18:44:50Z","timestamp":1792262690945,"version":"4.4.0"},"reference-count":39,"publisher":"Scientific Scholar","license":[{"start":{"date-parts":[[2020,1,27]],"date-time":"2020-01-27T00:00:00Z","timestamp":1580083200000},"content-version":"vor","delay-in-days":0,"URL":"https:\/\/creativecommons.org\/licenses\/by-nc-nd\/4.0\/"}],"content-domain":{"domain":["ruralneuropractice.com"],"crossmark-restriction":true},"short-container-title":["JNRP"],"abstract":"<jats:title>Abstract<\/jats:title>\n<jats:p>\n<jats:bold>Background<\/jats:bold>\u2003Posterior inferior cerebellar artery (PICA) is a tortuous, variable, and uncommon site for aneurysms. Surgical management of PICA aneurysms involves careful selection of approach based on the location of the aneurysm and meticulous dissection of the neurovascular structures and perforators.<\/jats:p>\n<jats:p>\n<jats:bold>Materials and Methods<\/jats:bold>\u2003We did a retrospective review of all the PICA aneurysms operated at our institute in the past 10 years along with the site, presentation, and approach used for the same. Preoperative World Federation of Neurosurgical Society scores and follow-up modified Rankin scores (mRS) were also evaluated. During the same period, data for intervention cases of PICA aneurysm were also collected with follow-ups for a comparative analysis.<\/jats:p>\n<jats:p>\n<jats:bold>Results<\/jats:bold>\u2003A total of 20 patients with 21 PICA aneurysms were reviewed. All the reviewed cases presented with subarachnoid hemorrhage, and the most common location was the lateral medullary segment and vertebral artery (VA)\u2013PICA junction. Midline approaches were used for distal PICA cases, with far-lateral approach reserved for anterior medullary\/VA\u2013PICA junction. No lower cranial nerve palsies were recorded at follow-up. Four cases needed cerebrospinal fluid diversion and two developed cerebellar infarcts. All cases were mRS 0 to 2 at follow-up.<\/jats:p>\n<jats:p>\n<jats:bold>Conclusion<\/jats:bold>\u2003Our series compares well with some of the larger surgical series of PICA aneurysms. This may be due to early referral patterns and early surgery (&lt;24 hours) policy at our institution. Anatomical knowledge of PICA anatomy and sound perioperative management are keys to good outcomes in these cases.<\/jats:p>","DOI":"10.1055\/s-0039-3399486","type":"journal-article","created":{"date-parts":[[2020,1,27]],"date-time":"2020-01-27T23:48:07Z","timestamp":1580168887000},"page":"34-43","update-policy":"https:\/\/doi.org\/10.25259\/crossmark_policy","source":"Crossref","is-referenced-by-count":16,"title":["Surgical Management and Outcomes of Aneurysms of Posterior Inferior Cerebellar Artery: Location-Based Approaches with Review of Literature"],"prefix":"10.25259","volume":"11","author":[{"given":"Harsh","family":"Deora","sequence":"first","affiliation":[{"name":"Department of Neurosurgery, Sanjay Gandhi Postgraduate Institute of Medical Sciences, Lucknow, Uttar Pradesh, India"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Nitish","family":"Nayak","sequence":"additional","affiliation":[{"name":"Department of Neurosurgery, National Institute of Mental Health and Neurosciences, Bengaluru, Karnataka, India"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Priyadarshi","family":"Dixit","sequence":"additional","affiliation":[{"name":"Department of Neurosurgery, National Institute of Mental Health and Neurosciences, Bengaluru, Karnataka, India"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"V.","family":"Vikas","sequence":"additional","affiliation":[{"name":"Department of Neurosurgery, National Institute of Mental Health and Neurosciences, Bengaluru, Karnataka, India"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"K. V. L. Narasinga","family":"Rao","sequence":"additional","affiliation":[{"name":"Department of Neurosurgery, National Institute of Mental Health and Neurosciences, Bengaluru, Karnataka, India"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Nupur","family":"Pruthi","sequence":"additional","affiliation":[{"name":"Department of Neurosurgery, National Institute of Mental Health and Neurosciences, Bengaluru, Karnataka, India"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Dwarakanath","family":"Srinivas","sequence":"additional","affiliation":[{"name":"Department of Neurosurgery, National Institute of Mental Health and Neurosciences, Bengaluru, Karnataka, India"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Dhaval P.","family":"Shukla","sequence":"additional","affiliation":[{"name":"Department of Neurosurgery, National Institute of Mental Health and Neurosciences, Bengaluru, Karnataka, India"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Dhananjay I.","family":"Bhat","sequence":"additional","affiliation":[{"name":"Department of Neurosurgery, National Institute of Mental Health and Neurosciences, Bengaluru, Karnataka, India"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Bhaskara Rao","family":"Malla","sequence":"additional","affiliation":[{"name":"Department of Neurosurgery, National Institute of Mental Health and Neurosciences, Bengaluru, Karnataka, India"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Bhagvatula Indira","family":"Devi","sequence":"additional","affiliation":[{"name":"Department of Neurosurgery, National Institute of Mental Health and Neurosciences, Bengaluru, Karnataka, India"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Sampath","family":"Somanna","sequence":"additional","affiliation":[{"name":"Department of Neurosurgery, National Institute of Mental Health and Neurosciences, Bengaluru, Karnataka, India"}],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"10894","published-online":{"date-parts":[[2020,1,27]]},"reference":[{"issue":"4","key":"10.1055\/s-0039-3399486\/ref-1","doi-asserted-by":"crossref","first-page":"529","DOI":"10.1007\/s10072-012-1095-9","article-title":"Aneurysms of the medullary segments of the posterior-inferior cerebellar artery: considerations on treatment strategy and clinical outcome","volume":"34","author":"Bacigaluppi","year":"2013","journal-title":"Neurol Sci"},{"issue":"4","key":"10.1055\/s-0039-3399486\/ref-2","doi-asserted-by":"crossref","first-page":"1088","DOI":"10.3171\/2010.8.JNS10759","article-title":"Anatomical triangles defining surgical routes to posterior inferior cerebellar artery aneurysms","volume":"114","author":"Rodr\u00edguez-Hern\u00e1ndez","year":"2011","journal-title":"J Neurosurg"},{"issue":"2","key":"10.1055\/s-0039-3399486\/ref-3","doi-asserted-by":"crossref","first-page":"170","DOI":"10.1227\/00006123-198202000-00004","article-title":"Microsurgical anatomy of the posterior inferior cerebellar artery","volume":"10","author":"Lister","year":"1982","journal-title":"Neurosurgery"},{"key":"10.1055\/s-0039-3399486\/ref-4","article-title":"Intracranial Aneurysms","author":"Dandy","year":"1947"},{"issue":"5","key":"10.1055\/s-0039-3399486\/ref-5","doi-asserted-by":"crossref","first-page":"550","DOI":"10.3171\/jns.1953.10.5.0550","article-title":"Congenital berry aneurysm of the posterior fossa; 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