K. Tsutsumi, Tetsuya Umeno, Y. Morofuji, T. Hirao, I. Kawahara, H. Takahata, Tomonori Ono, K. Toda, H. Baba, M. Yonekura
{"title":"Modality and Timing of Postoperative Evaluation after Clip Placement for Ruptured Intracranial Aneurysms: Significance of Postoperative Day 1 Imaging with CT Angiography","authors":"K. Tsutsumi, Tetsuya Umeno, Y. Morofuji, T. Hirao, I. Kawahara, H. Takahata, Tomonori Ono, K. Toda, H. Baba, M. Yonekura","doi":"10.2335/SCS.40.164","DOIUrl":"https://doi.org/10.2335/SCS.40.164","url":null,"abstract":"To evaluate the efficacy and safety of CT angiography (CTA) performed at immediate early postoperative periods in patients with ruptured intracranial aneurysm, we retrospectively analyzed the modality and timing of postoperative evaluation following clip placement for ruptured intracranial aneurysms in our institution during the last decade. Between 2001 and 2007 (Phase A: 281 cases), postoperative evaluation with digital subtraction angiography was performed on or after 14 postoperative days (POD) in the majority of the subjects, except for some postoperative imaging that was done earlier. Re-ruptures were observed in five cases (1.8% of total cases in Phase A), of which three aneurysms bled within two weeks after surgery. Since 2008, we have used the CTA for evaluation in the early postoperative period (Phase B: 102 cases). In particular, after 2009, all patients underwent immediate (POD 1) CTA to exclude aneurysm remnants as early as possible. No adverse incidence was observed during this protocol. In the Phase B period, two small remnants of anterior communicating artery aneurysms (AcomAN, 2.0% of all cases in Phase B) were detected in the CTA on POD 1. The patients in whom aneurysm remnants were found immediately underwent a second surgery to prevent re-rupture. Our findings suggest that immediate postoperative examination (POD 1) by CTA is beneficial to detect an incomplete closure of aneurysms before the postoperative vasospasmic phase. CTA was","PeriodicalId":131030,"journal":{"name":"Surgery for Cerebral Stroke","volume":"10 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2012-05-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125535525","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
M. Katsuno, R. Tanikawa, Takanori Miyazaki, N. Ota, K. Noda, H. Kubota, N. Izumi, M. Hashimoto
{"title":"The Results of Interhemispheric Approach for Unruptured Anterior Communicating Artery Aneurysms","authors":"M. Katsuno, R. Tanikawa, Takanori Miyazaki, N. Ota, K. Noda, H. Kubota, N. Izumi, M. Hashimoto","doi":"10.2335/SCS.40.106","DOIUrl":"https://doi.org/10.2335/SCS.40.106","url":null,"abstract":"There are two surgical approaches to anterior communicating artery aneurysms: the pterional approach and the interhemispheric approach. We have performed the interhemispheric approach for all cases of anterior communicating artery aneurysms because it is possible to obtain a wide operative field and to confirm the anatomical structure of the anterior communicating artery complex. It is relatively easier in interhemispheric approach to confirm and preserve the hypothalamic arteries arising from Acom complex, even in a superior or posterior projecting aneurysm. We reviewed the interhemispheric approach for the unruptured anterior communicating artery aneurysms between 1996 and 2007 in our institution and analyzed complications in 47 cases. Complete obliteration of the aneurysm was confirmed in all 47 cases during at least three years after operation. Diffusion-weighted MRI imaging disclosed ischemic lesions in one patient. Symptomatic epilepsy resulted in one patient from a right frontal lobe contusion. The other complications were anosmia in two cases and liquorrhea in one case. Based on our experience, we improved the interhemispheric approach. We have not experienced cases of the complication since 2008. We describe the problems and technical points of the interhemispheric approach for anterior communicating artery aneurysms.","PeriodicalId":131030,"journal":{"name":"Surgery for Cerebral Stroke","volume":"23 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2012-03-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114674081","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"On the wall typeの硬膜動静脈瘻の1例","authors":"久勝 伊東, 直也 桑山, 正圭 高, 宗司 岡本, 博道 山本, 俊郎 遠藤","doi":"10.2335/SCS.39.432","DOIUrl":"https://doi.org/10.2335/SCS.39.432","url":null,"abstract":"Dural arteriovenous fistulas (DAVFs) in the transverse-sigmoid sinus (TSS) usually flow into the sinus, and sometimes retrograde venous drainage is observed. We experienced a rare variant of DAVF located in the wall of the transverse-sigmoid sinus and draining only into the cortical vein. A 55-year-old man presenting with pulsating headache was diagnosed as a DAVF and referred to our hospital. The patient had no neurologic deficit, but a pulsating bruit was heard in the right mastoid area. There was no history of head trauma or surgery. Magnetic resonance imaging (MRI) showed many flow void spots around the right temporal lobe. Contrast-enhanced magnetic resonance angiography showed the large dilated vein of Labbe in the early arterial phase. Angiography disclosed a DAVF located in the superior wall of the transverse-sigmoid sinus. This DAVF drained directly into the right vein of Labbe in a retrograde fashion but not into the transverse-sigmoid sinus. Cerebral venous blood flow was not affected by the DAVF and drained into the ipsilateral transverse-sigmoid sinus. The patient was successfully treated with transarterial glue embolization.","PeriodicalId":131030,"journal":{"name":"Surgery for Cerebral Stroke","volume":"130 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2011-11-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115053923","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Hiroyuki Sato, Takayuki Koizumi, Y. Tsukamoto, Shinji Endo, Tsutomu Kobayashi
{"title":"くも膜下出血をきたしたcarotid rete mirabileに合併した後交通動脈動脈瘤の1例","authors":"Hiroyuki Sato, Takayuki Koizumi, Y. Tsukamoto, Shinji Endo, Tsutomu Kobayashi","doi":"10.2335/SCS.39.437","DOIUrl":"https://doi.org/10.2335/SCS.39.437","url":null,"abstract":"We report a case of true posterior communicating artery (Pcom) aneurysm associated with carotid rete mirabile presenting subarachnoid hemorrhage. A 77-year-old woman was admitted to our hospital because of disturbance of consciousness. Computed tomography showed subarachnoid hemorrhage. Cerebral angiography demonstrated 2 aneurysms arising from the left Pcom and left posterior cerebral artery (P1–P2 junction). The right carotid angiography demonstrated an abnormal vascular network around the cavernous portion of internal carotid artery (ICA), so-called “carotid rete mirabile.” The right ICA was aplastic and the left ICA was hypoplasic. Two days after onset, coil embolization was performed. As a result, the left P1–P2 junctional aneurysm was almost completely occluded, but it was impossible to occlude the left Pcom aneurysm. Twenty-four days after onset, neck clipping of the responsible left Pcom aneurysm was carried out through the left subtemporal approach. Postoperatively, the patient experienced temporary left oculomotor nerve palsy but improved. Follow-up angiography revealed disappearance of the left Pcom aneurysm and almost complete obliteration of the left P1–P2 junction aneurysm.","PeriodicalId":131030,"journal":{"name":"Surgery for Cerebral Stroke","volume":"38 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2011-11-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"123521257","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}