1
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Imamura H, Tani S, Adachi H, Fukumitsu R, Sunohara T, Fukui N, Omura Y, Sasaki N, Akiyama T, Fukuda T, Kajiura S, Shigeyasu M, Asakura K, Horii R, Sakai N. Comparison of Symptomatic Vasospasm after Surgical Clipping and Endovascular Coiling. Neurol Med Chir (Tokyo) 2022; 62:223-230. [PMID: 35418528 PMCID: PMC9178112 DOI: 10.2176/jns-nmc.2021-0126] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022] Open
Abstract
Vasospasm, initial neurological damage, rebleeding, and periprocedural complications are associated prognostic factors for clinical outcomes after aneurysmal subarachnoid hemorrhage (SAH). In this study, factors related to delayed ischemic neurological deficit (DIND) are evaluated using data from our institute for the last 18 years. Data from 2001 to 2018 of patients with aneurysmal SAH who underwent surgical clipping (SC) or endovascular coiling (EC) within 7 days of onset were retrospectively analyzed. Cases of mortality within 5 days after treatment were excluded. Multivariate analysis was used to identify the risk factors for DIND. In total, 840 cases of SAH were assessed; among these cases, 384 (45.7%) and 456 (54.3%) were treated with SC and EC, respectively. The frequency of DIND in the EC group was significantly less than that in the SC group (11.8% vs. 17.7%; p = 0.016). In the results of multivariate analysis, internal carotid artery (ICA) aneurysm and hemorrhagic complications were the risk factors for DIND. Cilostazol administration and EC were significant factors for vasospasm prevention after aneurysmal SAH (odds ratio of ICA aneurysm: 1.59, hemorrhagic complications: 1.76, SC: 1.51, and cilostazol administration: 0.51, respectively). Cilostazol administration was also a significant factor in patients who were treated with EC. ICA aneurysm, treatment strategy, hemorrhagic complications, and cilostazol administration were associated with DIND. Oral administration of cilostazol and avoiding hemorrhagic complications were effective in DIND prevention. If both treatments are available for ruptured aneurysms, clinicians should choose EC on the basis of its ability to prevent DIND.
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Affiliation(s)
- Hirotoshi Imamura
- Department of Neurosurgery, Kobe City Medical Center General Hospital
| | - Shoichi Tani
- Department of Neurosurgery, Kobe City Medical Center General Hospital
| | - Hidemitsu Adachi
- Department of Neurosurgery, Kobe City Medical Center General Hospital
| | - Ryu Fukumitsu
- Department of Neurosurgery, Kobe City Medical Center General Hospital
| | - Tadashi Sunohara
- Department of Neurosurgery, Kobe City Medical Center General Hospital
| | - Nobuyuki Fukui
- Department of Neurosurgery, Kobe City Medical Center General Hospital
| | - Yoshihiro Omura
- Department of Neurosurgery, Kobe City Medical Center General Hospital
| | - Natsuhi Sasaki
- Department of Neurosurgery, Kobe City Medical Center General Hospital
| | - Tomoaki Akiyama
- Department of Neurosurgery, Kobe City Medical Center General Hospital
| | - Tatsumaru Fukuda
- Department of Neurosurgery, Kobe City Medical Center General Hospital
| | - Shinji Kajiura
- Department of Neurosurgery, Kobe City Medical Center General Hospital
| | - Masashi Shigeyasu
- Department of Neurosurgery, Kobe City Medical Center General Hospital
| | - Kento Asakura
- Department of Neurosurgery, Kobe City Medical Center General Hospital
| | - Ryo Horii
- Department of Neurosurgery, Kobe City Medical Center General Hospital
| | - Nobuyuki Sakai
- Department of Neurosurgery, Kobe City Medical Center General Hospital
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2
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Computational methods for visualizing and measuring verapamil efficacy for cerebral vasospasm. Sci Rep 2020; 10:18780. [PMID: 33139791 PMCID: PMC7606481 DOI: 10.1038/s41598-020-75365-2] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/04/2020] [Accepted: 08/31/2020] [Indexed: 01/06/2023] Open
Abstract
Cerebral vasospasm is a dreaded sequelae of aneurysmal subarachnoid hemorrhage (aSAH), requiring timely intervention with therapeutic goals of improving brain perfusion. There are currently no standardized real-time, objective assessments of the interventional procedures performed to treat vasospasm. Here we describe real-time techniques to quantify cerebral perfusion during interventional cerebral angiography. We retrospectively analyzed 39 consecutive cases performed to treat clinical vasospasm and quantified the changes in perfusion metrics between pre- and post- verapamil administrations. With Digital Subtraction Angiography (DSA) perfusion analysis, we are able to identify hypoperfused territories and quantify the exact changes in cerebral perfusion for each individual case and vascular territory. We demonstrate that perfusion analysis for DSA can be performed in real time. This provides clinicians with a colorized map which directly visualizes hypoperfused tissue, combined with associated perfusion statistics. Quantitative thresholds and analysis based on DSA perfusion may assist with real-time dosage estimation and help predict response to treatment, however future prospective analysis is required for validation.
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3
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Kan P, Sweid A, Srivatsan A, Jabbour P. Expanding Indications for Flow Diverters: Ruptured Aneurysms, Blister Aneurysms, and Dissecting Aneurysms. Neurosurgery 2019; 86:S96-S103. [DOI: 10.1093/neuros/nyz304] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/05/2019] [Accepted: 05/26/2019] [Indexed: 11/13/2022] Open
Abstract
Abstract
BACKGROUND
The safety and efficacy of flow diversion (FD) in the treatment of cerebral aneurysms have been reported by many studies. FD has enabled the treatment of complex aneurysms and aneurysms that were previously untreatable by conventional means. It has achieved high rates of obliteration with essentially no recanalization, and its indications have continued to expand, now including ruptured aneurysms, blister aneurysms, and dissecting aneurysms.
OBJECTIVE
To provide a review on the outcomes of studies covering the use of FD in the settings of ruptured, blister, and dissecting aneurysms. In addition, to discuss dual antiplatelet therapy (DAPT) used in preparation for FD deployment in these scenarios, including associated complications with DAPT use in the acute rupture setting.
METHODS
References for this topical review were identified by PubMed searches between January 2000 and January 2019. The search terms “aneurysm”, “flow diverter”, “stent”, “pipeline”, “ruptured”, “blister”, and “dissecting aneurysms” were used.
RESULTS
FD carries a higher complication rate in the acute rupture setting than for unruptured aneurysms. Patient selection is of paramount importance for achieving good functional and angiographic outcomes. DAPT still remains challenging, especially in ruptured aneurysms. Advancements in surface modification of flow diverters can reduce the risk of thromboembolism and perhaps lead to a safer antiplatelet regimen.
CONCLUSION
In summary, FD shows promise to be an effective treatment for ruptured, blister, and dissecting aneurysms.
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Affiliation(s)
- Peter Kan
- Department of Neurosurgery, Baylor College of Medicine, Houston, Texas
| | - Ahmad Sweid
- Department of Neurological Surgery, Thomas Jefferson University and Jefferson Hospital for Neuroscience, Philadelphia, Pennsylvania
| | - Aditya Srivatsan
- Department of Neurosurgery, Baylor College of Medicine, Houston, Texas
| | - Pascal Jabbour
- Department of Neurological Surgery, Thomas Jefferson University and Jefferson Hospital for Neuroscience, Philadelphia, Pennsylvania
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Chen CC, Yi-Chou Wang A, Chen CT, Hsieh PC. Coadjuvant Treatment of Vasospasm in Ruptured Unsecured Cerebral Aneurysms with Aggressive Angioplasty, Intra-Arterial Nimodipine, and Aneurysm Embolization. World Neurosurg 2018; 116:e452-e459. [DOI: 10.1016/j.wneu.2018.05.005] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/01/2018] [Revised: 05/01/2018] [Accepted: 05/02/2018] [Indexed: 10/16/2022]
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Cagnazzo F, di Carlo DT, Cappucci M, Lefevre PH, Costalat V, Perrini P. Acutely Ruptured Intracranial Aneurysms Treated with Flow-Diverter Stents: A Systematic Review and Meta-Analysis. AJNR Am J Neuroradiol 2018; 39:1669-1675. [PMID: 30049721 DOI: 10.3174/ajnr.a5730] [Citation(s) in RCA: 86] [Impact Index Per Article: 14.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/13/2018] [Accepted: 05/25/2018] [Indexed: 11/07/2022]
Abstract
BACKGROUND The implantation of flow-diverter stents for the treatment of ruptured intracranial aneurysms required further investigation. PURPOSE Our aim was to analyze the outcomes after flow diversion of ruptured intracranial aneurysms. DATA SOURCES A systematic search of 3 databases was performed for studies published from 2006 to 2018. STUDY SELECTION According to the Preferred Reporting Items for Systematic Reviews and Meta-Analyses guidelines, we included studies (from 2010 to 2018) reporting acutely ruptured intracranial aneurysms treated with flow diversion. DATA ANALYSIS Random-effects meta-analysis was used to pool the following: aneurysm occlusion rate, complications, rebleeding, and factors influencing the studied outcomes. DATA SYNTHESIS We included 20 studies evaluating 223 patients with acutely ruptured intracranial aneurysms treated with flow-diverter stents. Immediate angiographic occlusion was obtained in 32% (29/86; 95% CI, 15.4%-48%; I2 = 79.6%) of aneurysms, whereas long-term complete/near-complete aneurysm occlusion was 88.9% (162/189; 95% CI, 84%-93.5%; I2 = 20.9%) (mean radiologic follow-up of 9.6 months). The treatment-related complication rate was 17.8% (42/223; 95% CI, 11%-24%; I2 = 52.6%). Complications were higher in the posterior circulation (16/72 = 27%; 95% CI, 14%-40%; I2 = 66% versus 18/149 = 11.7%; 95% CI, 7%-16%; I2 = 0%) (P = .004) and after treatment with multiple stents (14/52 = 26%; 95% CI, 14%-45%; I2 = 59%) compared with a single stent (20/141 = 10%; 95% CI, 5%-15%; I2 = 0%) (P = .004). Aneurysm rebleeding after treatment was 4% (5/223; 95% CI, 1.8%-7%; I2 = 0%) and was higher in the first 72 hours. LIMITATIONS Small and retrospective series. CONCLUSIONS Flow-diversion treatment of ruptured intracranial aneurysms yields a high rate of long-term angiographic occlusion with a relatively low rate of aneurysm rebleeding. However, treatment is associated with a complication rate of 18%. When coiling or microsurgical clipping are not feasible strategies, anterior circulation ruptured aneurysms can be effectively treated with a flow-diversion technique, minimizing the number of stents deployed. Given the 27% rate of complications, flow diversion for ruptured posterior circulation aneurysms should be considered only in selected cases not amenable to other treatments.
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Affiliation(s)
- F Cagnazzo
- From the Department of Neurosurgery (F.C., D.T.d.C., P.P.), University of Pisa, Pisa, Italy
| | - D T di Carlo
- From the Department of Neurosurgery (F.C., D.T.d.C., P.P.), University of Pisa, Pisa, Italy
| | - M Cappucci
- Radiology Department (M.C.), University of Rome Sapienza, Sant'Andrea Hospital, Rome, Italy
| | - P-H Lefevre
- Neuroradiology Department (P.-H.L., V.C.), University Hospital Güi-de-Chauliac, Centre Hospitalo-Universitaire de Montpellier, Montpellier, France
| | - V Costalat
- Neuroradiology Department (P.-H.L., V.C.), University Hospital Güi-de-Chauliac, Centre Hospitalo-Universitaire de Montpellier, Montpellier, France
| | - P Perrini
- From the Department of Neurosurgery (F.C., D.T.d.C., P.P.), University of Pisa, Pisa, Italy
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Mogollon JP, Smoll NR, Panwar R. Association Between Neurological Outcomes Related to Aneurysmal Subarachnoid Hemorrhage and Onsite Access to Neurointerventional Radiology. World Neurosurg 2018; 113:e29-e37. [PMID: 29410100 DOI: 10.1016/j.wneu.2018.01.121] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/27/2017] [Revised: 01/15/2018] [Accepted: 01/16/2018] [Indexed: 11/20/2022]
Abstract
OBJECTIVE An onsite access to neurointerventional radiology (NIR) may be useful for managing patients with aneurysmal subarachnoid hemorrhage (aSAH) after the aneurysm-securing procedure. We aimed to assess the association between neurological outcomes related to aSAH and onsite access to NIR service. METHODS This was a sequential period study of 47 patients with aSAH admitted consecutively during the pre-NIR period (January 2010 to June 2012) compared with 81 patients with aSAH admitted consecutively during the post-NIR period (January 2013 to June 2015) at an academic tertiary referral intensive care unit (ICU). The primary end point was the incidence of poor neurological outcome, defined as modified Rankin scale of ≥3 at 6 months from ictus. Secondary outcomes included incidence of symptomatic vasospasm (SV) and length of stay in ICU/hospital. RESULTS The primary end point was observed in 18 of 47 (38%) patients during the pre-NIR period versus 25 of 81 (31%) patients during the post-NIR period (P = 0.39). The post-NIR period did not have an independent impact on neurological outcomes (adjusted odds ratio = 0.8, 95% confidence interval 0.3-2.1; P = 0.66). Of the patients who developed SV, 10 of 47 (21%) were during the pre-NIR period versus 33 of 81 (41%) during the post-NIR period (P = 0.02). The post-NIR period and higher Fisher grade were independent predictors of SV. Patients with SV had similar outcomes, but with longer stay in ICU during the post-NIR period compared with the pre-NIR period. CONCLUSIONS Among patients with aSAH, the post-NIR period was associated with more frequent detection of SV, more endovascular procedures, longer hospital stay, but with no appreciable improvement in neurological outcomes either overall or in the subset of patients with SV. STUDY REGISTRATION Australian New Zealand Clinical Trials Registry ACTRN12616000201471.
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MESH Headings
- Adult
- Aged
- Aneurysm, Ruptured/complications
- Aneurysm, Ruptured/surgery
- Aneurysm, Ruptured/therapy
- Brain Damage, Chronic/epidemiology
- Brain Damage, Chronic/etiology
- Brain Damage, Chronic/prevention & control
- Computed Tomography Angiography
- Embolization, Therapeutic
- Endovascular Procedures/statistics & numerical data
- Female
- Humans
- Incidence
- Intensive Care Units/statistics & numerical data
- Intracranial Aneurysm/complications
- Intracranial Aneurysm/surgery
- Intracranial Aneurysm/therapy
- Length of Stay/statistics & numerical data
- Ligation
- Male
- Middle Aged
- Radiography, Interventional/statistics & numerical data
- Recurrence
- Severity of Illness Index
- Subarachnoid Hemorrhage/diagnostic imaging
- Subarachnoid Hemorrhage/epidemiology
- Subarachnoid Hemorrhage/etiology
- Subarachnoid Hemorrhage/surgery
- Tertiary Care Centers/statistics & numerical data
- Treatment Outcome
- Vasospasm, Intracranial/epidemiology
- Vasospasm, Intracranial/etiology
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Affiliation(s)
| | - Nicolas Roydon Smoll
- Melbourne School of Population Health, University of Melbourne, Melbourne, Australia
| | - Rakshit Panwar
- Intensive Care Unit, John Hunter Hospital, Newcastle, Australia; School of Medicine and Public Health, University of Newcastle, Newcastle, Australia.
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Chaudhry NS, Orning JL, Shakur SF, Amin-Hanjani S, Aletich VA, Charbel FT, Alaraj A. Safety and efficacy of balloon angioplasty of the anterior cerebral artery for vasospasm treatment after subarachnoid hemorrhage. Interv Neuroradiol 2017; 23:372-377. [PMID: 28335661 DOI: 10.1177/1591019917699980] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022] Open
Abstract
Balloon angioplasty is often performed for symptomatic vasospasm following aneurysmal subarachnoid hemorrhage. Angioplasty of the anterior cerebral artery (ACA), however, is perceived to be a challenging endeavor and not routinely performed due to technical and safety concerns. Here, we evaluate the safety and efficacy of balloon angioplasty of the anterior cerebral artery for vasospasm treatment. Patients with vasospasm following subarachnoid hemorrhage who underwent balloon angioplasty at our institution between 2011 and 2016 were retrospectively reviewed. All ACA angioplasty segments were analyzed for pre- and post-angioplasty radiographic measurements. The degree of vasospasm was categorized as mild (<25%), moderate (25-50%), or severe (>50%), and relative change in caliber was measured following treatment. Clinical outcomes following treatment were also assessed. Among 17 patients, 82 total vessel segments and 35 ACA segments were treated with balloon angioplasty. Following angioplasty, 94% of segments had increased caliber. Neurological improvement was noted in 75% of awake patients. There were no intra-procedural complications, but two patients developed ACA territory infarction, despite angioplasty treatment. We demonstrate that balloon angioplasty of the ACA for vasospasm treatment is safe and effective. Thus, ACA angioplasty should be considered to treat vasospasm in symptomatic patients recalcitrant to vasodilation infusion therapy.
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Affiliation(s)
| | | | - Sophia F Shakur
- Department of Neurosurgery, University of Illinois at Chicago, USA
| | | | - Victor A Aletich
- Department of Neurosurgery, University of Illinois at Chicago, USA
| | - Fady T Charbel
- Department of Neurosurgery, University of Illinois at Chicago, USA
| | - Ali Alaraj
- Department of Neurosurgery, University of Illinois at Chicago, USA
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8
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Andic C, Kardes O, Durdag E, Gedikoglu M, Akin S. Efficacy of endovascular treatment and feasibility of stent-assisted coiling in the presence of severe and symptomatic vasospasm. J Neurointerv Surg 2016; 9:1075-1080. [DOI: 10.1136/neurintsurg-2016-012734] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/08/2016] [Revised: 10/16/2016] [Accepted: 10/19/2016] [Indexed: 11/04/2022]
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9
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Wen T, He S, Attenello F, Cen SY, Kim-Tenser M, Adamczyk P, Amar AP, Sanossian N, Mack WJ. The impact of patient age and comorbidities on the occurrence of "never events" in cerebrovascular surgery: an analysis of the Nationwide Inpatient Sample. J Neurosurg 2014; 121:580-6. [PMID: 24972123 DOI: 10.3171/2014.4.jns131253] [Citation(s) in RCA: 24] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Abstract
OBJECT As health care administrators focus on patient safety and cost-effectiveness, methodical assessment of quality outcome measures is critical. In 2008 the Centers for Medicare and Medicaid Services (CMS) published a series of "never events" that included 11 hospital-acquired conditions (HACs) for which related costs of treatment are not reimbursed. Cerebrovascular procedures (CVPs) are complex and are often performed in patients with significant medical comorbidities. METHODS This study examines the impact of patient age and medical comorbidities on the occurrence of CMS-defined HACs, as well as the effect of these factors on the length of stay (LOS) and hospitalization charges in patients undergoing common CVPs. RESULTS The HACs occurred at a frequency of 0.49% (1.33% in the intracranial procedures and 0.33% in the carotid procedures). Falls/trauma (n = 4610, 72.3% HACs, 357 HACs per 100,000 CVPs) and catheter-associated urinary tract infections (n = 714, 11.2% HACs, 55 HACs per 100,000 CVPs) were the most common events. Age and the presence of ≥ 2 comorbidities were strong independent predictors of HACs (p < 0.0001). The occurrence of HACs negatively impacts both LOS and hospital costs. Patients with at least 1 HAC were 10 times more likely to have prolonged LOS (≥ 90th percentile) (p < 0.0001), and 8 times more likely to have high inpatient costs (≥ 90th percentile) (p < 0.0001) when adjusting for patient and hospital factors. CONCLUSIONS Improved quality protocols focused on individual patient characteristics might help to decrease the frequency of HACs in this high-risk population. These data suggest that risk adjustment according to underlying patient factors may be warranted when considering reimbursement for costs related to HACs in the setting of CVPs.
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10
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Abstract
With recent advancement in medical imaging, techniques, and endovascular tools more patients are diagnosed with unruptured intracranial aneurysms. The main aim of offering aneurysm treatment is to ameliorate the risk of future aneurysm bleeding, while not posing additional risks on the patient from the treatment itself. We discuss in this paper our approach of selecting patients for treatment (simple coiling, balloon-assisted, stent-assisted, vessel sacrifice, or flow-divertion stents). Our decision-making is based on the published data and our center experience. Risks of all option are compared to each other and weighed against natural history of intracranial aneurysms. In this paper, literature is cited and case illustrations are presented to support this approach. Factors that affect our decision-making are aneurysm location, presentation, size, aneurysm geometry, parent vessel anatomy, and relevant co-morbidities.
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11
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Ji Y, Meng QH, Wang ZG. Changes in the coagulation and fibrinolytic system of patients with subarachnoid hemorrhage. Neurol Med Chir (Tokyo) 2013; 54:457-64. [PMID: 24305025 PMCID: PMC4533443 DOI: 10.2176/nmc.oa2013-0006] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022] Open
Abstract
The aim of this study was to investigate the dynamic changes in the coagulation and fibrinolytic system with subarachnoid hemorrhage. The blood coagulation enzyme-AT complex (TAT), anticoagulant enzyme (AT), tissue plasminogen activator (tPA), plasminogen activin inhibitor (PAI-1), and mean blood flow velocity were measured. The TAT level was significantly higher 6 h after subarachnoid hemorrhage (SAH), whereas AT was significantly lower. These changes were maintained at 12 h to 1 d after SAH, returned to normal at 3 d, significantly changed again at 7 d to 14 d. The tPA level gradually increased after SAH and peaked at 14 d, and then returned to normal at 21 d. The PAI-1 levels were significantly lower than those in the control group 1 d after SAH gradually increased, and returned to normal at 21 d. In the cerebral vasospasm (CVS) groups, the levels of TAT, and AT significantly changed compared to the non-CVS groups after SAH. The PAI-1 levels were higher at 7 d and 14 d, but the changes were not significant. In groups Fisher III and IV as well as Hunt III to V, the TAT, AT, tPA, and PAI-1 levels were significantly higher than those in both Fisher and Hunt I and II 6 h, 12 h, 1 d, 7 d, and 14 d after SAH. The changes in the coagulation and fibrinolytic system of patients with SAH are correlated with the progress and symptoms of SAH as well as the blood content and CVS.
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Affiliation(s)
- Yong Ji
- Department of Neurosurgery, The Second Hospital of Shandong University
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12
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Odom MJ, Zuckerman SL, Mocco J. The role of magnesium in the management of cerebral vasospasm. Neurol Res Int 2013; 2013:943914. [PMID: 23766903 PMCID: PMC3674682 DOI: 10.1155/2013/943914] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/07/2012] [Revised: 04/29/2013] [Accepted: 05/01/2013] [Indexed: 11/17/2022] Open
Abstract
Subarachnoid hemorrhage (SAH) is characterized by bleeding into the subarachnoid space, often caused by ruptured aneurysm. Aneurysmal rupture occurs in 700,000 individuals per year worldwide, with 40,000 cases taking place in the United States. Beyond the high mortality associated with SAH alone, morbidity and mortality are further increased with the occurrence of cerebral vasospasm, a pathologic constriction of blood vessels that can lead to delayed ischemic neurologic deficits (DIND). Treatment of cerebral vasospasm is a source of contention. One extensively studied therapy is Magnesium (Mg) as both a competitive antagonist of calcium at the N-methyl D-aspartate (NMDA) receptor, and a noncompetitive antagonist of both IP3 and voltage-gated calcium channels, leading to smooth muscle relaxation. In our literature review, several animal and human studies are summarized in addition to two Phase III trials assessing the use of intravenous Mg in the treatment of SAH (IMASH and MASH-2). Though many studies have shown promise for the use of Mg in SAH, there has been inconsistency in study design and outcomes. Furthermore, the results of the recently completed clinical trials have shown no significant benefit from using intravenous Mg as adjuvant therapy in the treatment of cerebral vasospasm.
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Affiliation(s)
- Mitchell J. Odom
- Vanderbilt University School of Medicine, Nashville, TN 37232, USA
| | - Scott L. Zuckerman
- Department of Neurological Surgery, Vanderbilt University School of Medicine, 1211 Medical Center Drive, Nashville, TN 37232, USA
| | - J Mocco
- Department of Neurological Surgery, Vanderbilt University School of Medicine, 1211 Medical Center Drive, Nashville, TN 37232, USA
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de Rooij NK, Rinkel GJ, Dankbaar JW, Frijns CJ. Delayed Cerebral Ischemia After Subarachnoid Hemorrhage. Stroke 2013; 44:43-54. [DOI: 10.1161/strokeaha.112.674291] [Citation(s) in RCA: 119] [Impact Index Per Article: 10.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
Background and Purpose—
Established predictors of delayed cerebral ischemia after aneurysmal subarachnoid hemorrhage are large amounts of extravasated blood and poor clinical condition on admission. The predictive value of other factors is uncertain.
Methods—
We searched MEDLINE (1960–2012) for clinical, laboratory, and radiological predictors routinely available within 72 hours after subarachnoid hemorrhage. The studies were categorized according to methodological quality. Crude data and effect estimates (odds ratio [OR], hazard ratios, and risk ratio) with 95% CI were extracted, (re-)calculated and pooled if possible. For every potential predictor we assessed all effect estimates on consistency (point estimates in equal direction) and clinical relevance (size and 95% CI).
Results—
Fifty-two studies on 33 potential predictors were included. There was strong evidence (≥3 high-quality studies) for a higher risk of delayed cerebral ischemia in smokers (pooled OR, 1.2; 95% CI, 1.1–1.4), and moderate evidence (2 high-quality studies) for an increased risk in patients with hyperglycemia (OR, 3.2; 1.8–5.8 and hazard ratios, 1.7; 1.1–2.5), hydrocephalus (OR, 1.3; 1.1–1.5 and OR, 2.6; 1.2–5.5), history of diabetes mellitus (pooled OR, 6.7; 1.7–26), and early systemic inflammatory response syndrome (pooled OR, 2.1; 1.4–3.3). Evidence was limited for increased risk in women (pooled OR, 1.3; 1.1–1.6) and in patients with history of hypertension (pooled OR, 1.5; 1.3–1.7). The evidence on initial loss of consciousness, history of migraine, previous use of selective serotonin reuptake inhibitors, hypomagnesemia, low hemoglobin, or high blood flow on early transcranial Doppler was also limited.
Conclusions—
There is strong evidence that smoking is a predictor of delayed cerebral ischemia. For several other potential predictions the evidence is moderate, limited, or inconsistent.
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Affiliation(s)
- Nicolien K. de Rooij
- From the Utrecht Stroke Center, Department of Neurology and Neurosurgery, Rudolf Magnus Institute of Neuroscience, University Medical Center Utrecht, the Netherlands (N.K.d.R., G.J.E.R., C.J.M.F.); and the Department of Radiology, University Medical Center Utrecht, the Netherlands (J.W.D.)
| | - Gabriel J.E. Rinkel
- From the Utrecht Stroke Center, Department of Neurology and Neurosurgery, Rudolf Magnus Institute of Neuroscience, University Medical Center Utrecht, the Netherlands (N.K.d.R., G.J.E.R., C.J.M.F.); and the Department of Radiology, University Medical Center Utrecht, the Netherlands (J.W.D.)
| | - Jan Willem Dankbaar
- From the Utrecht Stroke Center, Department of Neurology and Neurosurgery, Rudolf Magnus Institute of Neuroscience, University Medical Center Utrecht, the Netherlands (N.K.d.R., G.J.E.R., C.J.M.F.); and the Department of Radiology, University Medical Center Utrecht, the Netherlands (J.W.D.)
| | - Catharina J.M. Frijns
- From the Utrecht Stroke Center, Department of Neurology and Neurosurgery, Rudolf Magnus Institute of Neuroscience, University Medical Center Utrecht, the Netherlands (N.K.d.R., G.J.E.R., C.J.M.F.); and the Department of Radiology, University Medical Center Utrecht, the Netherlands (J.W.D.)
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Barry C, Turner RJ, Corrigan F, Vink R. New therapeutic approaches to subarachnoid hemorrhage. Expert Opin Investig Drugs 2012; 21:845-59. [DOI: 10.1517/13543784.2012.683113] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
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McLaughlin N, Bojanowski MW. Management of patients with aneurismal subarachnoid hemorrhage and associated symptomatic vasospasm on presentation. Neurochirurgie 2012; 58:160-9. [PMID: 22481032 DOI: 10.1016/j.neuchi.2012.02.028] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/27/2012] [Accepted: 02/27/2012] [Indexed: 11/25/2022]
Abstract
Rebleeding and symptomatic vasospasm (VS) are the major causes of subsequent morbidity and mortality in patients surviving a subarachnoid hemorrhage (SAH). Although most patients present rapidly after the bleed, some may seek medical attention in a delayed fashion due to non-resolving or worsening headaches or new neurological deficits, requiring treatment during the period at risk for VS. Such patients may either present asymptomatic radiological VS on their diagnostic angiogram or present symptomatic VS confirmed on angiogram. A similar situation may occur in patients presenting within the first 48 hours after SAH with very early angiographic VS. Deciding on the optimal timing and modality of treatment in such patients with SAH and symptomatic VS on presentation is controversial. Only six observational studies that specifically assessed aneurysm treatment in the presence of symptomatic VS have been published to date. We reviewed the published literature on the management of ruptured intracranial aneurysms in the presence of symptomatic VS and suggest avenues for future studies.
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Affiliation(s)
- N McLaughlin
- Neurosurgery Division, hôpital Notre-Dame, centre hospitalier de l'université de Montréal, 1560, Sherbrooke St. East, Montreal, QC, Canada H2L 4M1
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Occlusion des anévrismes intracrâniens rompus en présence de vasospasme symptomatique. Neurochirurgie 2012. [DOI: 10.1016/j.neuchi.2012.02.026] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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Wong GKC, Poon WS. Clazosentan for patients with subarachnoid haemorrhage: lessons learned. Lancet Neurol 2011; 10:871; author reply 871-2. [DOI: 10.1016/s1474-4422(11)70189-2] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
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