{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,2,6]],"date-time":"2026-02-06T05:15:01Z","timestamp":1770354901447,"version":"3.49.0"},"reference-count":44,"publisher":"Journal of Neurosurgery Publishing Group (JNSPG)","issue":"15","license":[{"start":{"date-parts":[[2022,10,10]],"date-time":"2022-10-10T00:00:00Z","timestamp":1665360000000},"content-version":"unspecified","delay-in-days":0,"URL":"https:\/\/creativecommons.org\/licenses\/by\/4.0\/"}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":[],"published-print":{"date-parts":[[2022,10,10]]},"abstract":"<jats:sec>\n                    <jats:title>BACKGROUND<\/jats:title>\n                    <jats:p>Posterior cerebral artery (PCA) dissecting aneurysms commonly occur in the proximal PCA and are considered rare. The treatment of proximal PCA dissecting aneurysms is challenging because of the existence of perforators supplying the vital neural structures. Recently, endovascular intervention has been used; however, concerns for ischemic or hemorrhagic complications exist.<\/jats:p>\n                  <\/jats:sec>\n                  <jats:sec>\n                    <jats:title>OBSERVATIONS<\/jats:title>\n                    <jats:p>A 54-year-old woman presented with subarachnoid hemorrhage due to dissecting aneurysm rupture at the P1-P2 junction of the PCA. The thalamoperforating artery (TPA) and medial posterior choroidal artery (MPchA) originated from the proximal end and the distal end of the aneurysm, respectively. Additionally, the posterior communicating artery (PcomA) connected with the dissected segment. To preserve these perforators, we performed surgical trapping combined with superficial temporal artery (STA) PCA anastomosis. Clips were applied for trapping the proximal and distal end of the aneurysm, with preservation of the TPA and MPchA origin. PcomA was left open for blood flow preservation to the perforators directly arising from the aneurysm. The postoperative course was uneventful, and the patient was discharged.<\/jats:p>\n                  <\/jats:sec>\n                  <jats:sec>\n                    <jats:title>LESSONS<\/jats:title>\n                    <jats:p>Surgical trapping using STA-PCA bypass could be a treatment of choice for proximal PCA dissecting aneurysms, considering its potential for cure and prevention of ischemic complications.<\/jats:p>\n                  <\/jats:sec>","DOI":"10.3171\/case22341","type":"journal-article","created":{"date-parts":[[2022,10,10]],"date-time":"2022-10-10T08:47:07Z","timestamp":1665391627000},"source":"Crossref","is-referenced-by-count":0,"title":["Bypass surgery for ruptured dissecting aneurysms of the proximal posterior cerebral artery: illustrative case"],"prefix":"10.3171","volume":"4","author":[{"given":"Tetsuya","family":"Hayashi","sequence":"first","affiliation":[{"name":"Department of Neurosurgery, Kohnan Hospital, Sendai, Miyagi, Japan"},{"name":"Department of Neurosurgery, Tohoku University Graduate School of Medicine, Sendai, Miyagi, Japan; and"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Hidenori","family":"Endo","sequence":"additional","affiliation":[{"name":"Department of Neurosurgery, Kohnan Hospital, Sendai, Miyagi, Japan"},{"name":"Division of Advanced Cerebrovascular Surgery, Tohoku University Graduate School of Medicine, Sendai, Miyagi, Japan"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Atsushi","family":"Kanoke","sequence":"additional","affiliation":[{"name":"Department of Neurosurgery, Kohnan Hospital, Sendai, Miyagi, Japan"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Tomohiro","family":"Kawaguchi","sequence":"additional","affiliation":[{"name":"Department of Neurosurgery, Kohnan Hospital, Sendai, Miyagi, Japan"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Teiji","family":"Tominaga","sequence":"additional","affiliation":[{"name":"Department of Neurosurgery, Tohoku University Graduate School of Medicine, Sendai, Miyagi, Japan; and"}],"role":[{"role":"author","vocabulary":"crossref"}]}],"member":"1754","reference":[{"issue":"10","key":"b1","series-title":"Acta Neurochir (Wien)","doi-asserted-by":"publisher","first-page":"1633","DOI":"10.1007\/s00701-015-2526-1","article-title":"Treatment strategies for dissecting aneurysms of the posterior cerebral artery","volume":"157","author":"Park W","year":"2015","unstructured":"Park W, Kwon DH, Ahn JS, Lee SH, Park JC, Kwun BD. 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