{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,10,21]],"date-time":"2026-10-21T11:31:18Z","timestamp":1792582278174,"version":"4.5.0"},"reference-count":33,"publisher":"Journal of Neurosurgery Publishing Group (JNSPG)","issue":"5","content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":[],"published-print":{"date-parts":[[2020,11]]},"abstract":"<jats:sec><jats:title>OBJECTIVE<\/jats:title><jats:p>Aneurysm rebleeding is a major cause of death and morbidity in patients with aneurysmal subarachnoid hemorrhage (SAH). Recognizing the predictors of rebleeding might help to identify patients who will benefit from acute management. This study was performed to investigate the predictors of aneurysm rebleeding and their impact on clinical outcomes in the preoperative, intraoperative, and postoperative periods.<\/jats:p><\/jats:sec><jats:sec><jats:title>METHODS<\/jats:title><jats:p>The incidence of rebleeding, demographic data, and clinical data from 4933 patients with aneurysmal SAH beginning in the year 2000 were retrospectively analyzed in the Nagasaki SAH Registry Study. The authors performed multiple logistic regression analyses to identify the risk factors contributing to rebleeding and outcome after SAH.<\/jats:p><\/jats:sec><jats:sec><jats:title>RESULTS<\/jats:title><jats:p>Preoperative rebleeding occurred in 7.2% of patients. Patient age (p = 0.01), multiple aneurysms (p &lt; 0.01), aneurysm size (p &lt; 0.0001), and heart disease (p = 0.03) were significantly associated with preoperative rebleeding. Conversely, intraoperative rebleeding occurred in 11.2% of patients. Aneurysm location (anterior communicating artery [ACoA]), family history (p = 0.02), preoperative rebleeding (p &lt; 0.01), and clipping\/coiling (p &lt; 0.0001) were significantly associated with intraoperative rebleeding. Interaction analysis showed that clipping significantly affected intraoperative rebleeding at the ACoA (OR 4.00; 95% CI 1.82\u20138.80; p &lt; 0.001). Postoperative rebleeding occurred in 2.4% of patients. Coiling\/clipping (p &lt; 0.0001) and intraoperative rebleeding (p &lt; 0.01) were significantly associated with postoperative rebleeding. Rebleeding in all time periods examined significantly contributed to the clinical outcome after SAH.<\/jats:p><\/jats:sec><jats:sec><jats:title>CONCLUSIONS<\/jats:title><jats:p>Aneurysm rebleeding after SAH has specific characteristics in the preoperative, intraoperative, and postoperative periods, and all of these characteristics contribute to the clinical outcome. The ACoA has a higher risk of intraoperative rebleeding, and endovascular coiling could be a good candidate in terms of techniques for preventing intraoperative rebleeding, although complete aneurysm obliteration should be accomplished.<\/jats:p><\/jats:sec>","DOI":"10.3171\/2019.6.jns19704","type":"journal-article","created":{"date-parts":[[2019,9,14]],"date-time":"2019-09-14T00:11:33Z","timestamp":1568419893000},"page":"1401-1410","source":"Crossref","is-referenced-by-count":13,"title":["Impact of perioperative aneurysm rebleeding after subarachnoid hemorrhage"],"prefix":"10.3171","volume":"133","author":[{"given":"Nobutaka","family":"Horie","sequence":"first","affiliation":[{"name":"Department of Neurosurgery and"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Shuntaro","family":"Sato","sequence":"additional","affiliation":[{"name":"Clinical Research Center, Nagasaki University School of Medicine, Nagasaki, Japan"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Makio","family":"Kaminogo","sequence":"additional","affiliation":[{"name":"Department of Neurosurgery and"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Yoichi","family":"Morofuji","sequence":"additional","affiliation":[{"name":"Department of Neurosurgery and"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Tsuyoshi","family":"Izumo","sequence":"additional","affiliation":[{"name":"Department of Neurosurgery and"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Takeo","family":"Anda","sequence":"additional","affiliation":[{"name":"Department of Neurosurgery and"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Takayuki","family":"Matsuo","sequence":"additional","affiliation":[{"name":"Department of Neurosurgery and"}],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"1754","reference":[{"key":"b1","series-title":"Neurol Res","doi-asserted-by":"publisher","first-page":"245","DOI":"10.1080\/01616412.1989.11739900","article-title":"Analysis of reruptured cerebral aneurysms and the prophylactic effects of barbiturate therapy on the early stage","volume":"11","author":"Ando T","year":"1989","unstructured":"Ando T, Sakai N, Yamada H, Iwai T, Nishimura Y, Hirata T, : Analysis of reruptured cerebral aneurysms and the prophylactic effects of barbiturate therapy on the early stage. 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