• This ongoing randomized trial, with the final goal of a 10-year follow-up, compares the safety and efficacy of surgical clip occlusion and endovascular coil embolization in patients presenting with subarachnoid hemorrhage (SAH) from a ruptured aneurysm. (nih.gov)
  • The purpose of this study was to evaluate the stability of anatomic occlusion of aneurysms treated with GDCs and assess the rate of recanalization and re-treatment. (ajnr.org)
  • Upon admission, 25% of patients were Hunt and Hess grade IV or V. Acute angiographic results in 683 aneurysms demonstrated total occlusion in 496 cases (72.6%), subtotal occlusion in 171 cases (25. (ajnr.org)
  • Of them, 422 aneurysms (73.9%) demonstrated complete occlusion, 148 aneurysms (25.9%) demonstrated subtotal occlusion, and only 1 aneurysm was incompletely occluded. (ajnr.org)
  • The main question of this technique is the stability of the occlusion with detachable coils and the efficacy in providing protection against growth or regrowth of the aneurysm and consequent bleeding, in ruptured aneurysms. (ajnr.org)
  • Four aneurysms were treated by endosaccular coiling, 6 (all dissecting) by parent artery occlusion, and in 2 cases endovascular treatment failed. (ajnr.org)
  • Angiographic outcome was complete aneurysm and/or parent artery occlusion in 9 cases and neck remnant in 1 case. (ajnr.org)
  • Endovascular therapies include embolotherapy (see images below), the goal of which is occlusion of abnormal blood vessels (eg, vascular malformations, aneurysms, vascular tumors), and cerebral revascularization , performed with the goal of reopening occluded or narrowed normal vessels. (medscape.com)
  • This case suggests that occlusion of both the proximal and dilated segments of a VA dissecting aneurysm will prevent recanalization, by ensuring that any entrance to a pseudolumen of the aneurysm is completely closed. (surgicalneurologyint.com)
  • 2 3 8 13 ] Proximal occlusion of the VA carries a risk of rebleeding due to the presence of retrograde flow through the contralateral VA. Internal trapping in which the dissecting aneurysm is occluded represents a reliable treatment for preventing rebleeding of ruptured VA dissecting aneurysms. (surgicalneurologyint.com)
  • Various methods are available for internal trapping, including occlusion of the dilated segment of the aneurysm and distal and proximal VA, occlusion of the dilated segment of the aneurysm and proximal VA, and occlusion of the dilated segment of the aneurysm only. (surgicalneurologyint.com)
  • We report herein a case of antegrade VA recanalization without obvious coil compaction after internal trapping for acute-phase occlusion of only a dilated segment of the aneurysm. (surgicalneurologyint.com)
  • One year later, th e patient sufferd subarachnoid haemorrhage (SAH) caused by rupture of a newly-developed dissecting aneurysm of the left VA. Endovascular occlusion of the dissecting site was performed using Guglielmi detachable coils. (elsevierpure.com)
  • They were treated with distal revascularization followed by occlusion with coils of the aneurysm-incorporated PICA. (yonsei.ac.kr)
  • Initial occlusion rates were: eight aneurysms (18.6%) were completely occluded, five aneurysms (11.6%) showed near-complete occlusion, four cases (9.3%) showed incomplete filling, and 26 cases (60.4%) showed persisting filling. (bmj.com)
  • 3 aneurysms located at V-B junction, angiographic follow up on 3 months demonstrated no complete occlusion of both the aneurysms, the other patients were still on follow up. (biomedcentral.com)
  • PED for aneurysms incorporated the fetal PCA and V-B junction might meet a high propensity for incomplete occlusion during short term follow up. (biomedcentral.com)
  • Aneurysm with ipsilateral AVM is not suitable for PED treatment due to the risk of hemorrhage and incomplete occlusion during midterm follow up. (biomedcentral.com)
  • This was not the case for the posterior circulation aneurysms, where coil embolization appeared to provide a sustained advantage over clipping. (nih.gov)
  • The long-term durability of Guglielmi detachable coil (GDC) embolization of cerebral aneurysms is still unknown. (ajnr.org)
  • Our multicenter study confirms the stability of aneurysm embolization with GDC, with only 4.7% of aneurysms requiring re-treatment. (ajnr.org)
  • Among endovascular therapies, embolization of aneurysms (see image below) is one of the principal procedures. (medscape.com)
  • Large ruptured aneurysm before embolization (A) and after embolization (B, C) embolization with Guglielmi detachable coils. (medscape.com)
  • We evaluated the ease of navigating the microcatheter into the aneurysm and its stability during coil embolization. (go.jp)
  • Only the dilated segment of the aneurysm was occluded by coil embolization. (surgicalneurologyint.com)
  • Sixteen days after embolization, angiography showed recanalization of the treated left VA with blood supplying the dilated segment of the aneurysm, which showed morphological change between just proximal to the coil mesh and just distal to a coil, and antegrade blood flow through this part. (surgicalneurologyint.com)
  • The safety and feasibility of simple coil embolization and stent deployment for the treatment of posterior inferior cerebellar artery (PICA) aneurysms, as well as their radiologic and clinical results, have not been adequately understood. (koreamed.org)
  • 7) Furthermore, the safety and feasibility of stent assist coil embolization of proximal PICA aneurysms with narrow caliber are not precisely known, including their radiologic and clinical results. (koreamed.org)
  • 5) The authors present a successful but challenging case of stent-assisted coil embolization of a ruptured left proximal PICA dissecting fusiform aneurysm with left vertebral artery orifice (VAO) stenosis using the contralateral vertebral artery (VA) approach for stenting and the ipsilateral VA approach for coil embolization. (koreamed.org)
  • Target Embolization of Dilated Post-PICA Segment for Ruptured PICA-Involved Type Vertebral Artery Dissecting Aneurysm. (brain-knowledge-engine.org)
  • Pipeline embolization device (PED) has proved its safety and efficacy in the treatment of intracranial large and giant side-wall aneurysms. (biomedcentral.com)
  • The cases were collected from the data base containing all of the patients who had undergone endovascular treatment for their intracranial aneurysm since the start of the endovascular coiling activity in our hospital on December 1993 until March 2008. (ajnr.org)
  • The common causes of intracranial aneurysm include hemodynamically induced or degenerative vascular injury, atherosclerosis (typically leading to fusiform aneurysms), underlying vasculopathy (eg, fibromuscular dysplasia), and high-flow states, as in arteriovenous malformation (AVM) and fistula. (medscape.com)
  • Cite this: Giant PICA Aneurysm - Medscape - Nov 01, 2007. (medscape.com)
  • Proximal PICA aneurysms located at the vertebral artery-PICA junction or at anteromedullary segment and flow-related aneurysms associated with brain arteriovenous malformations were excluded. (ajnr.org)
  • The management of proximal PICA aneurysms is challenging with either surgical or endovascular treatment. (yonsei.ac.kr)
  • However, the results of endovascular repair of proximal PICA aneurysms are not well reported. (koreamed.org)
  • In all, 34 consecutive medially-directed paraclinoid internal carotid artery aneurysms were treated using the shaped catheters. (go.jp)
  • The shaping method with a pigtail-shaped mandrel using an injection needle cap is simple and reproducible, and is useful for medially-directed paraclinoid internal carotid artery aneurysms. (go.jp)
  • 2 - 4 Roughly, only a fifth of the PICA aneurysms are thought to arise from more distal segments of the PICA. (ajnr.org)
  • cerebral catheter angiography confirmed the presence of a right-sided occipital artery (oa) to posterior inferior cerebellar artery ( pica ) extracranial to intracranial (ec-ic) bypass with a zone of the distal pica territory supplied by this ec-ic bypass. (brain-knowledge-engine.org)
  • Since 1991, endovascular treatment (EVT) of cerebral aneurysms has experienced a revolution, with the introduction of platinum coil technology ( 1 - 2 ). (ajnr.org)
  • The only remaining downside is the recanalization of aneurysms due to coil compaction, mostly because of a large neck or the size of the lesion. (ajnr.org)
  • There were no cases that resulted in kickback of the microcatheters from the aneurysm during coil placement, and microcatheter stability was good until the end of the procedure. (go.jp)
  • However, we think that this case of ruptured aneurysm had an entrance into a pseudolumen that existed proximal to the dilated segment, with antegrade recanalization occurring through the pseudolumen with morphological change because of insufficient coil obliteration of the entrance in the first therapy. (surgicalneurologyint.com)
  • Intraoperative CTA was not sufficiently evaluable in one PICA aneurysm and one case of a previously coiled recurrent aneurysm, due to extensive coil artefacts. (neurosurgery-blog.com)
  • Computed tomography angiograms demonstrated the size and configuration of the aneurysm, and 3D reconstructions revealed the tortuosity of the right VA, defining its location just left of the midline adjacent to the lower clivus. (thejns.org)
  • In selecting appropriate therapy, referring and interventional physicians should consider the configuration of the aneurysm and its neck, the location(s) and number of aneurysms, and the patient's preference and overall physical condition (eg, ability to tolerate anesthesia and surgery). (medscape.com)
  • Although all patients with ruptured or unruptured aneurysms should be evaluated for endovascular therapy, not all are best served by this therapy. (medscape.com)
  • There were no statistically significant differences in the baseline characteristics between patients undergoing EC versus NC for either ruptured or unruptured aneurysm groups. (journaltocs.ac.uk)
  • Our understanding of the pathophysiology and management of intracranial aneurysms (IAs) continuously advances. (hippokratia.gr)
  • A consecutive series was analyzed retrospectively: from January 1998 to May 2003, 705 intracranial ruptured aneurysms in 650 patients were considered for endovascular treatment at five neuroradiologic centers. (ajnr.org)
  • The wide-necked saccular/fusiform aneurysm arose from the lateral aspect of the right V 4 segment just proximal to the PICA origin, anterior to the jugular tubercle at the level of the hypoglossal canal. (thejns.org)
  • 3 Surgical treatment of VA-PICA aneurysms can be difficult given the location of these aneurysms to the brainstem and lower cranial nerves. (thejns.org)
  • 2 In the case of PICA aneurysms deemed appropriate for surgical intervention and located at the skull base, the anatomy of the jugular tubercle, hypoglossal canal, and all of the lower cranial nerves must be considered. (thejns.org)
  • Due to anatomic location of the PICAs (proximity to brain stem and lower cranial nerves), their surgical treatment is associated with significant risk of neurologic complications. (ajnr.org)
  • Microsurgical clipping of middle cerebral artery aneurysm The following are video recordings of surgical procedures from the Department of Neurosurgery of Saint John's Hospital of Budapest. (videotorium.hu)
  • Pontine artery aneurysms, especially when associated with CPAc AVMs, represent a surgical challenge, due to their rarity and anatomical peculiarity, which typically requires complex operative approaches. (surgicalneurologyint.com)
  • BackgroundSelection of appropriate surgical strategy for the treatment of intracranial aneurysms (IA) during pregnancy requires careful consideration of the potential risks to the mother and fetus. (journaltocs.ac.uk)
  • Ten of the aneurysms presented with an acute intracranial hemorrhage, and 2 were incidental imaging findings. (ajnr.org)
  • Methods Patients who underwent acute treatment of ruptured intracranial aneurysms with the PED-Shield with SAPT were retrospectively identified from prospectively maintained databases at three Australian neurointerventional centres. (bmj.com)
  • Conclusion The PED-Shield may be safe to use in the acute treatment of ruptured intracranial aneurysms with SAPT. (bmj.com)
  • A few nice teaching points here: Left PCOM aneurysm clipped following SAH while vacationing abroad, no subsequent follow up, re-presenting with acute headache, acute left CNIII Palsy and negative lumbar puncture. (neuroangio.org)
  • Personally i am extremely uneasy about acute aneurysmal CNIII and like to make sure we have good pipeline coverage of the aneurysm. (neuroangio.org)
  • The aim of this study was to better assess the long-term durability of endovascular coiling of cerebral aneurysms with Guglielmi detachable coils (GDCs) and the real rate of second treatment for ruptured aneurysms alone. (ajnr.org)
  • All of the patients underwent a 4-vessel cerebral angiography, disclosing a peripheral PICA aneurysm (in one case the primary DSA was negative). (ajnr.org)
  • The aim of this study was to present our experience with retrograde suction decompression in clipping of large and giant cerebral aneurysms and analyze its advantages and pitfalls. (qxmd.com)
  • Both techniques are complementary rather than competing analysing tools and help to assess information about local (ICGVA/iCTA) as well as regional (iCTA/iCTP) blood flow and cerebral perfusion immediately after clipping of intracranial aneurysms. (neurosurgery-blog.com)
  • Common locations of cerebral saccular aneurysms. (medscape.com)
  • Posterior inferior cerebellar artery (PICA) aneurysms account for approximately 0.5% to 3.0% of all intracranial aneurysms, 1 , 2 and most are located right at the origin or in the first anteromedullary segment of the vessel. (ajnr.org)
  • From the 25 angiographically verified PICA aneurysms, 12 were located distally to the anteromedullary segment of the PICA and composed the case material of this study. (ajnr.org)
  • More often present when the PICA is either C1 or high - in other words, not arising from the proximal intradural segment. (neuroangio.org)
  • Since its approval by FDA in 2011, PED (ev3, USA) has proved its safety and efficacy in the treatment of large and giant intracranial aneurysms from the petrous to the superior hypophyseal segment of the internal carotid artery [ 1 , 2 ]. (biomedcentral.com)
  • Anterior medullary segment (P1): the origin of the PICA courses anterior to the medulla and passes around the hypoglossal rootlets, terminating at the medial border of the inferior olive. (neurosurgicalatlas.com)
  • BackgroundIntracranial fusiform aneurysms are less common than saccular aneurysms, but are associated with higher mortality and morbidity. (journaltocs.ac.uk)
  • Saccular aneurysms are rounded berrylike outpouchings that arise from arterial bifurcation points, most commonly in the circle of Willis (see image below). (medscape.com)
  • Less common causes of saccular aneurysms include trauma, infection, tumor, drug abuse (cocaine), and high-flow states associated with AVMs or fistulae. (medscape.com)
  • Aneurysm morphology was saccular in seven, fusiform in five, and blister in two. (bmj.com)
  • When aneurysm location was considered, the 6-year results continued to match the previously reported results, with no difference in outcome for anterior circulation aneurysms at most time points. (nih.gov)
  • Of the anterior circulation aneurysms assigned to coiling treatment, 42% (70/168) were crossed over to clipping treatment. (nih.gov)
  • Although BRAT was statistically underpowered to detect small differences, these results suggest little difference in outcome between the 2 treatments for anterior circulation aneurysms. (nih.gov)
  • 25 ] Posterior fossa AVMs also have a documented tendency to develop aneurysms compared to their anterior circulation counterparts. (surgicalneurologyint.com)
  • We adopted routinely a triaxial system in the deployment of PED for anterior circulation aneurysm, however for aneurysms located on posterior circulation, a biaxial system consisting of 6Fr guiding catheter and Marksman microcatheter was sufficient. (biomedcentral.com)
  • five aneurysms previously ruptured, had recurrence after the initial coiling. (bmj.com)
  • The outcomes for posterior circulation aneurysms continued to favor coiling. (nih.gov)
  • The randomization process was unexpectedly skewed, with 18 of 21 treated aneurysms of the posterior inferior cerebellar artery (PICA) being assigned to clipping, but even when PICA aneurysms were removed from the analysis, outcomes for the posterior circulation aneurysms still favored coiling. (nih.gov)
  • Only 8-12% of intracranial aneurysms and 5-15% of arterial venous malformations (AVMs) occur in the posterior circulation. (surgicalneurologyint.com)
  • The outcomes were statistically comparable between EC and NC for both ruptured and unruptured IA, except for a lower incidence of ischemic stroke in patients undergoing EC for ruptured aneurysms (OR 0.12, 95% CI 0.02 to 0.84).ConclusionsMost pregnant and postpartum patients are treated with EC for both ruptured and unruptured IA. (journaltocs.ac.uk)
  • Patient demographics, aneurysm characteristics, clinical and imaging outcomes were reviewed. (bmj.com)
  • Here, we report the outcomes of 9 patients with 10 aneurysms that incorporated at least one of the following special angioarchitecture: fetal PCA, AVM, V-B junction and DAVF. (biomedcentral.com)
  • Neurosurgeons should consider multimodal treatment in these cases including trapping after occipital artery (OA)-PICA bypass. (yonsei.ac.kr)
  • For aneurysms deep within the skull such as basilar trunk, vertebrobasilar junction, and many PICA aneurysms, other factors-such as osseous relationships and individual skull base anatomical nuances-can be just as critical. (thejns.org)
  • However this aneurysm was at further branching of frontal division of MCA at M2-M3 junction and. (neurosurgeoninchandigarh.com)
  • We performed bifemoral puncture and chose additional route from right vertebral artery to left vertebrobasilar junction for retrograde approach and deployment of LVIS Jr. intraluminal support at proximal PICA. (koreamed.org)
  • The internal elastic membrane is reduced or absent, and the media ends at the junction of the aneurysm neck with the parent vessel. (medscape.com)
  • Except for aneurysm, those patients also presented with special angioarchitecture: Fetal PCA, AVM, V-B junction and DAVF. (biomedcentral.com)
  • Among those patients, 9 patients were identified with a special angioarchitecture that were qualified for the study, namely the aneurysm was related to fetal PCA, ipsilateral AVM, V-B junction and DAVF. (biomedcentral.com)
  • The coexistence of hyper-inflow aneurysms and cerebellopontine angle cistern (CPAc) arterial venous malformations (AVMs) have been rarely reported and most commonly associated with high risk of bleeding. (surgicalneurologyint.com)
  • 27 , 29 ] Cerebellopontine angle cistern (CPAc) AVMs are even rarer,[ 32 ] especially when associated with aneurysms originating from the same parent artery (2.8-9.3% of all AVMs). (surgicalneurologyint.com)
  • 20 , 24 , 33 ] In this context, we present the operative management of two CPAc AVMs - pontine artery aneurysms, both supplied by the same feeder artery, characterized by a small AVM nidus and a proximal ruptured aneurysm. (surgicalneurologyint.com)
  • Like his first two books on aneurysms and AVMs, Seven Bypasses provides unparalleled firsthand insights and guidance on complex pathologies in vascular neurosurgery. (thieme.com)
  • Cortical branches of the superior cerebellar artery (SCA), anterior inferior cerebellar artery (AICA), and posterior inferior cerebellar artery (PICA) form the main arterial supply to the cerebellum and participate in AVMs of the region. (neurosurgicalatlas.com)
  • Although embolotherapy has been practiced for approximately 40 years, application of this therapy for definitive or preoperative adjunctive management of aneurysms, vascular malformations, and vascular tumors continues to evolve. (medscape.com)
  • After silent aim warzone download further 3 months, he was referred to our Service of Vascular and Endovascular Surgery triggerbot crossfire Faculdade de Medicina de Botucatu, Botucatu, SP, Brazil, for endovascular repair of an infrarenal abdominal aortic aneurysm, which was achieved with no intercurrent complications and without teleport increase in creatinine level 72h after the procedure. (elpostrebodas.es)
  • There are variations in the anatomy of the vertebrobasilar system amongst which the Anterior Inferior Cerebellar Artery-Posterior Inferior Cerebellar Artery (AICA-PICA) variant is thought to have a prevalence of 20-24% (based on retrospective studies). (aku.edu)
  • 2 - 4 Approximately 28% of all aneurysms located in the vertebrobasilar arteries, including PICA, have been estimated to be of dissecting origin. (ajnr.org)
  • In this series, most peripheral PICA aneurysms were secondary to arterial dissection. (ajnr.org)
  • Most saccular or intracranial berry aneurysms were once thought to be congenital in origin, arising from focal defects in the media and gradually developing over a period of years as arterial pressure first weakens and subsequently balloons out the vessel wall. (medscape.com)
  • The purpose of this study was to assess the etiology and clinical characteristics of peripheral PICA aneurysms and to evaluate the angiographic and clinical results of the patients who underwent endovascular treatment for a peripheral PICA aneurysm in a single center. (ajnr.org)
  • Three dissecting aneurysms reruptured before endovascular treatment, and another 3 demonstrated angiographic progress. (ajnr.org)
  • [ 1 ] Published data vary according to the definition of what constitutes an aneurysm and whether the series is based on autopsy data or angiographic studies. (medscape.com)
  • The prevalence of the AICA-PICA variant might be high but aneurysms in this vessel are rare. (aku.edu)
  • The offending vessel was left posterior inferior cerebellar artery (PICA). (elsevierpure.com)
  • Aneurysm is an abnormal local dilatation in the wall of a blood vessel, usually an artery, due to a defect, disease, or injury. (medscape.com)
  • These are true aneurysms, ie, they are dilatations of a vascular lumen caused by weakness of all vessel wall layers. (medscape.com)
  • Peripheral aneurysms of the posterior inferior cerebellar artery (PICA) are rare, and pre-existing literature concerning their endovascular treatment is limited. (ajnr.org)
  • Despite the recently increased number of publications, the pre-existing literature concerning endovascular treatment of peripheral PICA aneurysms is limited and controversial. (ajnr.org)
  • 6 - 9 , 11 - 21 In the present study, a consecutive series of 12 patients harboring a peripheral PICA aneurysm allocated for endovascular treatment in a single center was retrospectively analyzed. (ajnr.org)
  • Endovascular treatment has been widely applied to VA dissecting aneurysms, because these procedures are quicker and less invasive than direct surgery. (surgicalneurologyint.com)
  • The treatment modality was mainly dependent on the character of the aneurysms and the clinical presentation of the patients. (yonsei.ac.kr)
  • Endovascular treatment was performed in 10 patients because of a serious medical condition, or vertebral artery (VA)/ or PICA tortuosity. (yonsei.ac.kr)
  • Conclusion Our study demonstrated that the use of the new low-profile flow diverter, SVB device, for the treatment of intracranial aneurysms is feasible and technically safe. (bmj.com)
  • we focused on rvada involving the posterior inferior cerebellar artery ( pica ) and evaluated the treatment results. (brain-knowledge-engine.org)
  • This study aimed to evaluate the effectiveness, safety, and technical considerations of flow diverter (FD) treatment using a Flow Re-direction Endoluminal Device (FRED) for unruptured intracranial vertebral artery dissecting aneurysms (VADAs). (neurointervention.org)
  • With the accumulation of treatment experience, it is an inevitable trend to expand its off-label use on aneurysms. (biomedcentral.com)
  • For aneurysm with concurrent DAVF, PED treatment is safe and efficient relatively in one session or by staged operation. (biomedcentral.com)
  • The treatment effect of PED is accredited to the flow diversion effect, and aneurysms with concomitant complex angioarchitecture might result in disturbed flow. (biomedcentral.com)
  • All treated aneurysms should be followed, regardless of modality or apparent initial treatment success. (neuroangio.org)
  • The authors report the case of a patient with a right vertebral artery (VA)-PICA aneurysm that was reached via a contralateral far-lateral approach. (thejns.org)
  • 1 , 9 , 12 , 18 We report a case of a VA-PICA aneurysm located at the midline skull base, which was successfully clipped via a contralateral farlateral approach. (thejns.org)
  • SSK Okmeydanı Eğitim Hastanesi, Nöroşirürji Kliniği, İstanbul We present a case of partially thrombosed giant aneursym of the posterior inferior cerebellar artery (PICA). (dergisi.org)
  • We present a case of an AICA-PICA aneurysm and discuss its presentation and management, along with a review of literature. (aku.edu)
  • Aneurysm exclusion and AVM size reduction were obtained in the first case, while complete AVM removal and later aneurysm disappearance were obtained in the second one. (surgicalneurologyint.com)
  • All patients achieved complete cure of the PICA aneurysms without complications except for one case of cerebrospinal fluid (CSF) leakage. (yonsei.ac.kr)
  • w report the first case of hemifacial spasm (hfs) caused by vascular compression of the anterior inferior cerebellar artery (aica)-posterior inferior cerebellar artery ( pica ) common trunk anomaly at the cisternal portion of cranial nerve vii (cn vii). (brain-knowledge-engine.org)
  • we report a case of posterior inferior cerebellar artery ( pica ) territory infarction with "episodic postural diplopia" as the initial symptom, hoping that clinicians notice the vertical diplopia caused by the disfunction of otolith gravity conduction pathway, which is characterized by the degree of diplopia being affected by postural changes. (brain-knowledge-engine.org)
  • In this case, the PEDs are placed so that the overlap is at the aneurysm alone, with single coverage of the choroidal. (neuroangio.org)
  • The location of the aneurysm was recorded according to the classification described by Lister et al 22 as anterior medullary, lateral medullary, tonsillomedullary, telovelotonsillar, or cortical. (ajnr.org)
  • 5 Among peripheral PICA aneurysms, dissecting etiology has been found in 0%-80% of the cases. (ajnr.org)
  • Numerous nuanced approaches have been used to access posterior inferior cerebellar artery (PICA) aneurysms for microsurgical clipping. (thejns.org)
  • Computed tomography angiography with volume rendering and interactive software capabilities can help identify the relationship of such an aneurysm to an individual's particular skull base osseous anatomy and is paramount in selecting the optimal microsurgical approach. (thejns.org)
  • Aneurysm obliteration rates in BRAT were significantly lower and retreatment rates significantly higher in the patients undergoing coiling than in those undergoing clipping. (nih.gov)
  • One aneurysm needed retreatment at follow-up. (ajnr.org)
  • During this same period, 37% of all ruptured aneurysms were surgically clipped (total aneurysms collected, 1,119). (ajnr.org)
  • Re-evaluation of imaging revealed an aneurysm of the AICA-PICA variant which was managed surgically. (aku.edu)
  • A multicenter study involving 650 patients with 705 ruptured aneurysms treated with GDCs between January 1998 to May 2003 was conducted. (ajnr.org)