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Germans MR, Dronkers WJ, Baharoglu MI, Post R, Verbaan D, Rinkel GJ, Roos YB. Antifibrinolytic therapy for aneurysmal subarachnoid haemorrhage. Cochrane Database Syst Rev 2022; 11:CD001245. [PMID: 36350005 PMCID: PMC9644641 DOI: 10.1002/14651858.cd001245.pub3] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Abstract
BACKGROUND Rebleeding is an important cause of death and disability in people with aneurysmal subarachnoid haemorrhage. Rebleeding is probably related to the dissolution of the blood clot at the site of the aneurysm rupture by natural fibrinolytic activity. This review is an update of previously published Cochrane Reviews. OBJECTIVES To assess the effects of antifibrinolytic treatment in people with aneurysmal subarachnoid haemorrhage. SEARCH METHODS We searched the Cochrane Stroke Group Trials Register (May 2022), CENTRAL (in the Cochrane Library 2021, Issue 1), MEDLINE (December 2012 to May 2022), and Embase (December 2012 to May 2022). In an effort to identify further published, unpublished, and ongoing studies, we searched reference lists and trial registers, performed forward tracking of relevant references, and contacted drug companies (the latter in previous versions of this review). SELECTION CRITERIA Randomised trials comparing oral or intravenous antifibrinolytic drugs (tranexamic acid, epsilon amino-caproic acid, or an equivalent) with control in people with subarachnoid haemorrhage of suspected or proven aneurysmal cause. DATA COLLECTION AND ANALYSIS Two review authors (MRG & WJD) independently selected trials for inclusion, and extracted the data for the current update. In total, three review authors (MIB & MRG in the previous update; MRG & WJD in the current update) assessed risk of bias. For the primary outcome, we dichotomised the outcome scales into good and poor outcome, with poor outcome defined as death, vegetative state, or (moderate) severe disability, assessed with either the Glasgow Outcome Scale or the Modified Rankin Scale. We assessed death from any cause, rates of rebleeding, delayed cerebral ischaemia, and hydrocephalus per treatment group. We expressed effects as risk ratios (RR) with 95% confidence intervals (CI). We used random-effects models for all analyses. We assessed the quality of the evidence with GRADE. MAIN RESULTS We included one new trial in this update, for a total of 11 included trials involving 2717 participants. The risk of bias was low in six studies. Five studies were open label, and we rated them at high risk of performance bias. We also rated one of these studies at high risk for attrition and reporting bias. Five trials reported on poor outcome (death, vegetative state, or (moderate) severe disability), with a pooled risk ratio (RR) of 1.03 (95% confidence interval (CI) 0.94 to 1.13; P = 0.53; 5 trials, 2359 participants; high-quality evidence), which showed no difference between groups. All trials reported on death from all causes, which showed no difference between groups, with a pooled RR of 1.02 (95% CI 0.90 to 1.16; P = 0.77; 11 trials, 2717 participants; high-quality evidence). In trials that combined short-term antifibrinolytic treatment (< 72 hours) with preventative measures for delayed cerebral ischaemia, the RR for poor outcome was 0.98 (95% CI 0.81 to 1.18; P = 0.83; 2 trials, 1318 participants; high-quality evidence). Antifibrinolytic treatment reduced the risk of rebleeding, reported at the end of follow-up (RR 0.65, 95% CI 0.47 to 0.91; P = 0.01; 11 trials, 2717 participants; absolute risk reduction 7%, 95% CI 3 to 12%; moderate-quality evidence), but there was heterogeneity (I² = 59%) between the trials. The pooled RR for delayed cerebral ischaemia was 1.27 (95% CI 1.00 to 1.62; P = 0.05; 7 trials, 2484 participants; moderate-quality evidence). However, this effect was less extreme after the implementation of ischaemia preventative measures and < 72 hours of treatment (RR 1.10, 95% CI 0.83 to 1.46; P = 0.49; 2 trials, 1318 participants; high-quality evidence). Antifibrinolytic treatment showed no effect on the reported rate of hydrocephalus (RR 1.09, 95% CI 0.99 to 1.20; P = 0.09; 6 trials, 1992 participants; high-quality evidence). AUTHORS' CONCLUSIONS The current evidence does not support the routine use of antifibrinolytic drugs in the treatment of people with aneurysmal subarachnoid haemorrhage. More specifically, early administration with concomitant treatment strategies to prevent delayed cerebral ischaemia does not improve clinical outcome. There is sufficient evidence from multiple randomised controlled trials to incorporate this conclusion in treatment guidelines.
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Affiliation(s)
- Menno R Germans
- Department of Neurosurgery, University Hospital Zurich, Zurich, Switzerland
- Clinical Neuroscience Center, University Hospital Zurich, Zurich, Switzerland
| | - Wouter J Dronkers
- Department of Neurosurgery, Amsterdam UMC location University of Amsterdam, Amsterdam, Netherlands
- Amsterdam Neuroscience, Neurovascular Disorders, Amsterdam, Netherlands
| | - Merih I Baharoglu
- Amsterdam Neuroscience, Neurovascular Disorders, Amsterdam, Netherlands
- Department of Neurology, Amsterdam UMC location University of Amsterdam, Amsterdam, Netherlands
| | - René Post
- Department of Neurosurgery, Amsterdam UMC location University of Amsterdam, Amsterdam, Netherlands
- Amsterdam Neuroscience, Neurovascular Disorders, Amsterdam, Netherlands
| | - Dagmar Verbaan
- Department of Neurosurgery, Amsterdam UMC location University of Amsterdam, Amsterdam, Netherlands
- Amsterdam Neuroscience, Neurovascular Disorders, Amsterdam, Netherlands
| | - Gabriel Je Rinkel
- Department of Neurology and Neurosurgery, University Medical Center Utrecht, Utrecht, Netherlands
| | - Yvo Bwem Roos
- Amsterdam Neuroscience, Neurovascular Disorders, Amsterdam, Netherlands
- Department of Neurology, Amsterdam UMC location University of Amsterdam, Amsterdam, Netherlands
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Rupture pressure values of cerebral arteries in the presence of unruptured intracranial aneurysm. Sci Rep 2022; 12:10294. [PMID: 35717502 PMCID: PMC9206654 DOI: 10.1038/s41598-022-13341-8] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/23/2021] [Accepted: 05/23/2022] [Indexed: 11/09/2022] Open
Abstract
Cerebral arteries (CAs) are prone to the saccular aneurysm formation. Since aneurysms may be considered as balloon-like dilations of the locally weakened arterial wall, it should be determined whether the presence of intracranial aneurysm is related to the generalized weakening of CAs. Among 184 consecutive forensic autopsies, eight brains with a single unruptured saccular aneurysm were identified. Aneurysms with adjacent CAs and specific CA segments were excised, namely: the anterior communicating artery complex, and bifurcations of the basilar artery, internal carotid arteries, and middle cerebral arteries. Then, aneurysm and CA specimens were subjected to pressure-inflation tests until rupture occurred at the arterial bifurcation or at the wall of the CA or aneurysm. The same protocol was applied to the control group composed of CAs excised from eight brains without aneurysm. No significant differences were noted between the experimental and control groups, depending on the mean rupture pressure (1054 vs. 1048 mmHg) and rupture site (bifurcation vs. wall) of the analyzed specimens. These findings indicate that the presence of unruptured saccular aneurysm is not related to generalized weakening of CAs among autopsy subjects. Moreover, the CA bifurcations do not represent regions of decreased wall strength.
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Vergouw LJM, Egal M, Bergmans B, Dippel DWJ, Lingsma HF, Vergouwen MDI, Willems PWA, Oldenbeuving AW, Bakker J, van der Jagt M. High Early Fluid Input After Aneurysmal Subarachnoid Hemorrhage: Combined Report of Association With Delayed Cerebral Ischemia and Feasibility of Cardiac Output-Guided Fluid Restriction. J Intensive Care Med 2020; 35:161-169. [PMID: 28934895 PMCID: PMC6927070 DOI: 10.1177/0885066617732747] [Citation(s) in RCA: 18] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/19/2017] [Revised: 08/01/2017] [Accepted: 08/31/2017] [Indexed: 01/01/2023]
Abstract
BACKGROUND Guidelines on the management of aneurysmal subarachnoid hemorrhage (aSAH) recommend euvolemia, whereas hypervolemia may cause harm. We investigated whether high early fluid input is associated with delayed cerebral ischemia (DCI), and if fluid input can be safely decreased using transpulmonary thermodilution (TPT). METHODS We retrospectively included aSAH patients treated at an academic intensive care unit (2007-2011; cohort 1) or managed with TPT (2011-2013; cohort 2). Local guidelines recommended fluid input of 3 L daily. More fluids were administered when daily fluid balance fell below +500 mL. In cohort 2, fluid input in high-risk patients was guided by cardiac output measured by TPT per a strict protocol. Associations of fluid input and balance with DCI were analyzed with multivariable logistic regression (cohort 1), and changes in hemodynamic indices after institution of TPT assessed with linear mixed models (cohort 2). RESULTS Cumulative fluid input 0 to 72 hours after admission was associated with DCI in cohort 1 (n=223; odds ratio [OR] 1.19/L; 95% confidence interval 1.07-1.32), whereas cumulative fluid balance was not. In cohort 2 (23 patients), using TPT fluid input could be decreased from 6.0 ± 1.0 L before to 3.4 ± 0.3 L; P = .012), while preload parameters and consciousness remained stable. CONCLUSION High early fluid input was associated with DCI. Invasive hemodynamic monitoring was feasible to reduce fluid input while maintaining preload. These results indicate that fluid loading beyond a normal preload occurs, may increase DCI risk, and can be minimized with TPT.
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Affiliation(s)
- Leonie J. M. Vergouw
- Department of Intensive Care, Erasmus MC, University Medical Center, Rotterdam, The Netherlands
- Department of Neurology, Erasmus MC, University Medical Center, Rotterdam, The Netherlands
| | - Mohamud Egal
- Department of Intensive Care, Erasmus MC, University Medical Center, Rotterdam, The Netherlands
| | - Bas Bergmans
- Department of Intensive Care, Erasmus MC, University Medical Center, Rotterdam, The Netherlands
| | - Diederik W. J. Dippel
- Department of Neurology, Erasmus MC, University Medical Center, Rotterdam, The Netherlands
| | - Hester F. Lingsma
- Department of Public Health, Erasmus MC, University Medical Center, Rotterdam, The Netherlands
| | - Mervyn D. I. Vergouwen
- Department of Neurology and Neurosurgery, Brain Center Rudolf Magnus, University Medical Center Utrecht, Utrecht, The Netherlands
| | - Peter W. A. Willems
- Department of Neurosurgery, Leiden University Medical Center, Leiden, The Netherlands
| | | | - Jan Bakker
- Department of Intensive Care, Erasmus MC, University Medical Center, Rotterdam, The Netherlands
| | - Mathieu van der Jagt
- Department of Intensive Care, Erasmus MC, University Medical Center, Rotterdam, The Netherlands
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Petridis AK, Kamp MA, Cornelius JF, Beez T, Beseoglu K, Turowski B, Steiger HJ. Aneurysmal Subarachnoid Hemorrhage. DEUTSCHES ARZTEBLATT INTERNATIONAL 2018; 114:226-236. [PMID: 28434443 DOI: 10.3238/arztebl.2017.0226] [Citation(s) in RCA: 56] [Impact Index Per Article: 9.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/29/2016] [Revised: 08/29/2016] [Accepted: 11/28/2016] [Indexed: 01/10/2023]
Abstract
BACKGROUND Aneurysmal subarachnoid hemorrhage (SAH) is associated with a mortality of more than 30%. Only about 30% of patients with SAB recover sufficiently to return to independent living. METHODS This article is based on a selective review of pertinent literature retrieved by a PubMed search. RESULTS Acute, severe headache, typically described as the worst headache of the patient's life, and meningismus are the characteristic manifestations of SAH. Computed tomog raphy (CT) reveals blood in the basal cisterns in the first 12 hours after SAH with approximately 95% sensitivity and specificity. If no blood is seen on CT, a lumbar puncture must be performed to confirm or rule out the diagnosis of SAH. All patients need intensive care so that rebleeding can be avoided and the sequelae of the initial bleed can be minimized. The immediate transfer of patients with acute SAH to a specialized center is crucially important for their outcome. In such centers, cerebral aneurysms can be excluded from the circulation either with an interventional endovascular procedure (coiling) or by microneurosurgery (clipping). CONCLUSION SAH is a life-threatening condition that requires immediate diagnosis, transfer to a neurovascular center, and treatment without delay.
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Affiliation(s)
- Athanasios K Petridis
- Department of Neurosurgery, Düsseldorf University Hospital; Department of Diagnostic and Interventional Radiology, Düsseldorf University Hospital; Department of Diagnostic and Interventional Radiology, Düsseldorf University Hospital
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Sugimoto K, Yamada A, Inamasu J, Hirose Y, Takada K, Sugimoto K, Tanaka R, Watanabe E, Ozaki Y. Electrocadiographic Scoring Helps Predict Left Ventricular Wall Motion Abnormality Commonly Observed after Subarachnoid Hemorrhage. J Stroke Cerebrovasc Dis 2018; 27:3148-3154. [PMID: 30120035 DOI: 10.1016/j.jstrokecerebrovasdis.2018.07.008] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/09/2018] [Revised: 06/25/2018] [Accepted: 07/02/2018] [Indexed: 11/29/2022] Open
Abstract
BACKGROUND Cardiac wall motion abnormality (WMA) is a common complication in patients with subarachnoid hemorrhage (SAH) and is one determinant of their prognosis. The aim of this study was to examine whether the electrocardiography (ECG) findings at admission could predict WMA commonly observed after SAH. MATERIALS AND METHODS We studied 161 SAH patients with SAH who were hospitalized in our institution between April 2007 and November 2010. We performed bedside 2-dimensional transthoracic echocardiography and 12-lead surface ECG within 24hours of SAH onset. Each of the following ECG changes was scored as having 1 point: ST elevation, ST depression and T wave inversion. We summed up the points in every patient and compared with WMA evaluated by echocardiography. RESULTS The study subjects were classified into 2 groups based on the presence of WMA. Multivariate analysis revealed that ST elevation, ST depression and T wave inversion were strong independent predictors of WMA. Receiver operating characteristic curve determined that the threshold value to predict WMA was 4 points (sensitivity 86.5%, specificity 83.1%, AUC 0.94, P < .0001). CONCLUSIONS In conclusion, a novel ECG score may well predict WMA after SAH which may associate with an increased risk of mortality.
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Affiliation(s)
- Keiko Sugimoto
- Department of Medical Technology, Fujita Health University, Toyoake, Japan
| | - Akira Yamada
- Department of Cardiology, Fujita Health University, Toyoake, Japan.
| | - Joji Inamasu
- Department of Neurosurgery, Fujita Health University, Toyoake, Japan
| | - Yuichi Hirose
- Department of Neurosurgery, Fujita Health University, Toyoake, Japan
| | - Kayoko Takada
- Department of Cardiology, Fujita Health University, Toyoake, Japan
| | - Kunihiko Sugimoto
- Clinical Laboratory, Fujita Health University Hospital, Toyoake, Japan
| | - Risako Tanaka
- Clinical Laboratory, Fujita Health University Hospital, Toyoake, Japan
| | - Eiichi Watanabe
- Department of Cardiology, Fujita Health University, Toyoake, Japan
| | - Yukio Ozaki
- Department of Cardiology, Fujita Health University, Toyoake, Japan
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Poe LM, Janda AM, Burger CF, Schlesinger JJ. Use of 23.4% Saline in Symptomatic Vasospasm and Cushing's Triad to Prevent Herniation and Death: A Case Report. A & A CASE REPORTS 2017; 9:265-267. [PMID: 28691981 DOI: 10.1213/xaa.0000000000000587] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/07/2023]
Abstract
A 53-year-old woman with migraines presented with Hunt-Hess grade 5 and Fisher grade 4 subarachnoid hemorrhage with intraventricular hemorrhage. She experienced severe vasospasm requiring intra-arterial medications. Continued vasospasm and edema resulted in Cushing's triad with profound tachypnea. Three percentage saline was administered twice without improvement. Despite the general practice to wait until complete neurologic deterioration before administering 23.4% saline, it was administered on 2 separate occasions, once after the failure of the 2 boluses of 3% saline and once on the reappearance of Cushing's triad 24 hours later, and on each occasion produced overall clinical improvement. The patient was subsequently discharged to a rehabilitation facility and then home. A paradigm shift to earlier intervention with 23.4% saline may improve overall outcomes in patients with severe intracranial hypertension refractory to 3% saline and impending herniation.
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Affiliation(s)
- Lauren M Poe
- From the *Department of Anesthesiology, Vanderbilt Medical Center, Nashville, Tennessee; and †University of Tennessee College of Pharmacy, Nashville, Tennessee
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Ota N, Matsukawa H, Kamiyama H, Tsuboi T, Noda K, Hashimoto A, Miyazaki T, Kinoshita Y, Saito N, Tokuda S, Kamada K, Tanikawa R. Preventing Cerebral Vasospasm After Aneurysmal Subarachnoid Hemorrhage with Aggressive Cisternal Clot Removal and Nicardipine. World Neurosurg 2017; 107:630-640. [DOI: 10.1016/j.wneu.2017.08.088] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/24/2017] [Revised: 08/11/2017] [Accepted: 08/12/2017] [Indexed: 11/24/2022]
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Vergouw LJM, Egal M, Bergmans B, Dippel DWJ, Lingsma HF, Vergouwen MDI, Willems PWA, Oldenbeuving AW, Bakker J, van der Jagt M. High Early Fluid Input After Aneurysmal Subarachnoid Hemorrhage: Combined Report of Association With Delayed Cerebral Ischemia and Feasibility of Cardiac Output-Guided Fluid Restriction. J Intensive Care Med 2017. [PMID: 28934895 DOI: 10.1177/0885066617732747#] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/19/2023]
Abstract
BACKGROUND Guidelines on the management of aneurysmal subarachnoid hemorrhage (aSAH) recommend euvolemia, whereas hypervolemia may cause harm. We investigated whether high early fluid input is associated with delayed cerebral ischemia (DCI), and if fluid input can be safely decreased using transpulmonary thermodilution (TPT). METHODS We retrospectively included aSAH patients treated at an academic intensive care unit (2007-2011; cohort 1) or managed with TPT (2011-2013; cohort 2). Local guidelines recommended fluid input of 3 L daily. More fluids were administered when daily fluid balance fell below +500 mL. In cohort 2, fluid input in high-risk patients was guided by cardiac output measured by TPT per a strict protocol. Associations of fluid input and balance with DCI were analyzed with multivariable logistic regression (cohort 1), and changes in hemodynamic indices after institution of TPT assessed with linear mixed models (cohort 2). RESULTS Cumulative fluid input 0 to 72 hours after admission was associated with DCI in cohort 1 (n=223; odds ratio [OR] 1.19/L; 95% confidence interval 1.07-1.32), whereas cumulative fluid balance was not. In cohort 2 (23 patients), using TPT fluid input could be decreased from 6.0 ± 1.0 L before to 3.4 ± 0.3 L; P = .012), while preload parameters and consciousness remained stable. CONCLUSION High early fluid input was associated with DCI. Invasive hemodynamic monitoring was feasible to reduce fluid input while maintaining preload. These results indicate that fluid loading beyond a normal preload occurs, may increase DCI risk, and can be minimized with TPT.
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Affiliation(s)
- Leonie J M Vergouw
- Department of Intensive Care, Erasmus MC, University Medical Center, Rotterdam, The Netherlands.,Department of Neurology, Erasmus MC, University Medical Center, Rotterdam, The Netherlands
| | - Mohamud Egal
- Department of Intensive Care, Erasmus MC, University Medical Center, Rotterdam, The Netherlands
| | - Bas Bergmans
- Department of Intensive Care, Erasmus MC, University Medical Center, Rotterdam, The Netherlands
| | - Diederik W J Dippel
- Department of Neurology, Erasmus MC, University Medical Center, Rotterdam, The Netherlands
| | - Hester F Lingsma
- Department of Public Health, Erasmus MC, University Medical Center, Rotterdam, The Netherlands
| | - Mervyn D I Vergouwen
- Department of Neurology and Neurosurgery, Brain Center Rudolf Magnus, University Medical Center Utrecht, Utrecht, The Netherlands
| | - Peter W A Willems
- Department of Neurosurgery, Leiden University Medical Center, Leiden, The Netherlands
| | | | - Jan Bakker
- Department of Intensive Care, Erasmus MC, University Medical Center, Rotterdam, The Netherlands
| | - Mathieu van der Jagt
- Department of Intensive Care, Erasmus MC, University Medical Center, Rotterdam, The Netherlands
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Piechna A, Lombarski L, Ciszek B, Cieslicki K. Experimental determination of rupture pressure and stress of adventitia of human middle cerebral arteries. Int J Stroke 2017; 12:636-640. [PMID: 28067614 DOI: 10.1177/1747493016685715] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
Background Intracranial arterial dissections might be attributed to the particular biomechanical properties of their specific layers. Also, knowledge of adventitia properties would be crucial in the context of intracranial balloon angioplasty. Aims The purpose of this work was to determine the rupture pressure of separated adventitia and compare it to intact cerebral arterial segments. Methods Brain specimens were harvested from 14 autopsy subjects (age range from 23 to 86 years). Pressure-inflation tests were conducted on proximal segments of middle cerebral arteries and separated adventitia layers from contralateral arteries to assess the rupture pressure values. Results The averaged rupture pressure of adventitia layers was 1.41 SD 0.25 atm (1072 SD 190 mmHg), whereas for intact arterial segments it was 2.32 SD 0.70 atm (1763 SD 532 mmHg) and diminished with age according to nonlinear regression trends. The difference beetween the aformentioned rupture pressures was positively correlated with rupture pressure of intact arterial segments ( R2 = 0.88; p < 0.001). Conclusions The obtained experimental results indicate a leading role of adventitia in building arterial strength under supraphysiological pressure conditions. The greater the rupture pressure of complete cerebral arteries, the smaller the contribution of adventitia in overall wall resistance.
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Affiliation(s)
- Adam Piechna
- 1 Warsaw University of Technology, Warsaw, Poland
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Assessment of circulating blood volume with fluid administration targeting euvolemia or hypervolemia. Neurocrit Care 2016; 22:82-8. [PMID: 25142828 DOI: 10.1007/s12028-014-9993-8] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/24/2022]
Abstract
BACKGROUND The occurrence of hypovolemia in the setting of cerebral vasospasm reportedly increases the risk for delayed ischemic neurologic deficits. Few studies have objectively assessed blood volume (BV) in response to fluid administration targeting normovolemia (NV) or hypervolemia (HV) and none have done so with crystalloids alone. The primary purpose was to evaluate the BV of patients with SAH receiving crystalloid fluid administration targeting NV or HV. METHODS The University of Washington IRB approved the study. Prospectively collected data was obtained from patients enrolled in a clinical trial and a concurrent group of patients who received IV fluids during the ICU stay. We defined a normovolemia (NV) and hypervolemia (HV) group based on the cumulative amount of IV fluid administered in mL/kg from ICU admission to day 5; ≥30-60 mL/kg/day (NV) and ≥60 mL/kg/day (HV), respectively. In a subgroup of patients, BV was measured on day 5 post ictus using iodinated (131)I-labeled albumin injection and the BVA-100 (Daxor Corp, New York, NY). Differences between the NV and HV groups were compared using Student's t-test with assumption for unequal variance. RESULTS Twenty patients in the NV and 19 in the HV groups were included. The HV group received more fluid and had a higher fluid balance than the NV group. The subgroup of patients in whom BV was measured on day 5 (n = 19) was not different from the remainder of the cohort with respect to the total amount of administered fluid and net cumulative fluid balance by day 5. BV was not different between the two groups and varied widely. CONCLUSIONS Routinely targeting prophylactic HV using crystalloids does not result in a higher circulating BV compared to targeting NV, but the possibility of clinically unrecognized hypovolemia remains.
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Ibrahim GM, Macdonald RL. The effects of fluid balance and colloid administration on outcomes in patients with aneurysmal subarachnoid hemorrhage: a propensity score-matched analysis. Neurocrit Care 2014; 19:140-9. [PMID: 23715669 DOI: 10.1007/s12028-013-9860-z] [Citation(s) in RCA: 28] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/14/2023]
Abstract
BACKGROUND Delayed ischemic neurological deficit (DIND) following aneurysmal subarachnoid hemorrhage (SAH) remains a significant cause of mortality and disability. The administration of colloids and the induction of a positive fluid balance during the vasospasm risk period remain controversial. Here, we compared DIND and outcomes among propensity score-matched cohorts who did and did not receive colloids and also tested the effect of a positive fluid balance on these endpoints. METHODS Exploratory analysis was performed on 413 patients enrolled in CONSCIOUS-1, a prospective randomized trial of clazosentan for the prevention of angiographic vasospasm. Propensity score matching was performed on the basis of age, gender, pre-existing heart conditions, hypertension, nicotine use, World Federation of Neurosurgical Societies scores, aneurysm location, clazosentan treatment, subarachnoid clot burden, and severity of angiographic vasospasm. Inferential statistics were used for group-wise comparisons. RESULTS One hundred twenty-three subjects were matched (41 received colloids, whereas 82 did not). The covariate balance and propensity score distributions were acceptable. There was no difference between the groups with respect to DIND (17 vs. 22%; p = 0.64) or the presence (48 vs. 51%; p = 0.71) or volume of delayed infarcts (volume >7.5 cm3; 62 vs. 48%; p = 0.41). Similarly, no differences were found on multivariate analysis between patients who did and did not have a positive fluid balance, although patients with severe angiographic vasospasm had more delayed infarcts with a negative fluid balance (p = 0.01). Among all subjects, the administration of colloids and a positive fluid balance were associated with worse outcomes on the NIHSS (p = 0.04) and modified Rankin (p = 0.02) scales, respectively. CONCLUSIONS Colloid administration and induction of a positive fluid balance during the vasospasm risk period may be associated with poor outcomes in specific patient groups. Patient selection is of utmost importance when managing the fluid status of patients with aneurysmal SAH.
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Affiliation(s)
- George M Ibrahim
- Division of Neurosurgery, St. Michael's Hospital, 30 Bond Street, Toronto, ON, M5B 1W8, Canada,
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Ibrahim GM, Morgan BR, Macdonald RL. Patient phenotypes associated with outcomes after aneurysmal subarachnoid hemorrhage: a principal component analysis. Stroke 2014; 45:670-6. [PMID: 24425125 DOI: 10.1161/strokeaha.113.003078] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/01/2023]
Abstract
BACKGROUND AND PURPOSE Predictors of outcome after aneurysmal subarachnoid hemorrhage have been determined previously through hypothesis-driven methods that often exclude putative covariates and require a priori knowledge of potential confounders. Here, we apply a data-driven approach, principal component analysis, to identify baseline patient phenotypes that may predict neurological outcomes. METHODS Principal component analysis was performed on 120 subjects enrolled in a prospective randomized trial of clazosentan for the prevention of angiographic vasospasm. Correlation matrices were created using a combination of Pearson, polyserial, and polychoric regressions among 46 variables. Scores of significant components (with eigenvalues>1) were included in multivariate logistic regression models with incidence of severe angiographic vasospasm, delayed ischemic neurological deficit, and long-term outcome as outcomes of interest. RESULTS Sixteen significant principal components accounting for 74.6% of the variance were identified. A single component dominated by the patients' initial hemodynamic status, World Federation of Neurosurgical Societies score, neurological injury, and initial neutrophil/leukocyte counts was significantly associated with poor outcome. Two additional components were associated with angiographic vasospasm, of which one was also associated with delayed ischemic neurological deficit. The first was dominated by the aneurysm-securing procedure, subarachnoid clot clearance, and intracerebral hemorrhage, whereas the second had high contributions from markers of anemia and albumin levels. CONCLUSIONS Principal component analysis, a data-driven approach, identified patient phenotypes that are associated with worse neurological outcomes. Such data reduction methods may provide a better approximation of unique patient phenotypes and may inform clinical care as well as patient recruitment into clinical trials. CLINICAL TRIAL REGISTRATION URL http://www.clinicaltrials.gov. Unique identifier: NCT00111085.
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Affiliation(s)
- George M Ibrahim
- From the Division of Neurosurgery, St Michael's Hospital, Labatt Family Centre of Excellence in Brain Injury and Trauma Research, Keenan Research Centre of the Li Ka Shing Knowledge Institute of St Michael's Hospital, Toronto, Ontario, Canada (G.M.I., B.R.M.); Department of Surgery (G.M.I., R.L.M.) and Institute of Medical Science (G.M.I.), University of Toronto, Toronto, Ontario, Canada; and Department of Medical Imaging, Hospital for Sick Children, Toronto, Ontario, Canada (G.M.I., B.R.M.)
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Baharoglu MI, Germans MR, Rinkel GJE, Algra A, Vermeulen M, van Gijn J, Roos YBWEM. Antifibrinolytic therapy for aneurysmal subarachnoid haemorrhage. Cochrane Database Syst Rev 2013; 2013:CD001245. [PMID: 23990381 PMCID: PMC8407182 DOI: 10.1002/14651858.cd001245.pub2] [Citation(s) in RCA: 62] [Impact Index Per Article: 5.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
Abstract
BACKGROUND Rebleeding is an important cause of death and disability in people with aneurysmal subarachnoid haemorrhage. Rebleeding is probably related to dissolution of the blood clot at the site of aneurysm rupture by natural fibrinolytic activity. This review is an update of a previously published Cochrane review. OBJECTIVES To assess the effects of antifibrinolytic treatment in people with aneurysmal subarachnoid haemorrhage. SEARCH METHODS We searched the Cochrane Stroke Group Trials Register (February 2013), the Cochrane Central Register of Controlled Trials (CENTRAL) (The Cochrane Library 2012, Issue 1), MEDLINE (1948 to December 2012), and EMBASE (1947 to December 2012). In an effort to identify further published, unpublished, and ongoing studies we searched reference lists and trial registers, performed forward tracking of relevant references and contacted drug companies. SELECTION CRITERIA Randomised trials comparing oral or intravenous antifibrinolytic drugs (tranexamic acid, epsilon amino-caproic acid, or an equivalent) with control in people with subarachnoid haemorrhage of suspected or proven aneurysmal cause. DATA COLLECTION AND ANALYSIS Two review authors independently selected trials for inclusion and extracted the data. Three review authors assessed trial quality. For the primary outcome we converted the outcome scales between good and poor outcome for the analysis. We scored death from any cause and rates of rebleeding, cerebral ischaemia, and hydrocephalus per treatment group. We expressed effects as risk ratios (RR) with 95% confidence intervals (CI). We used random-effects models for all analyses. MAIN RESULTS We included 10 trials involving 1904 participants. The risk of bias was low in six studies. Four studies were open label and were rated as high risk of performance bias. One of these studies was also rated as high risk for attrition bias. Four trials reported on poor outcome (death, vegetative state, or severe disability) with a pooled risk ratio (RR) of 1.02 (95% confidence interval (CI) 0.91 to 1.15). All trials reported on death from all causes with a pooled RR of 1.00 (95% CI 0.85 to 1.18). In a trial that combined short-term antifibrinolytic treatment (< 72 hours) with preventative measures for cerebral ischaemia the RR for poor outcome was 0.85 (95% CI 0.64 to 1.14). Antifibrinolytic treatment reduced the risk of re-bleeding reported at the end of follow-up (RR 0.65, 95% CI 0.44 to 0.97; 78 per 1000 participants), but there was heterogeneity (I² = 62%) between the trials. The pooled RR for reported cerebral ischaemia was 1.41 (95% CI 1.04 to 1.91, 83 per 1000 participants), again with heterogeneity between the trials (I² = 52%). Antifibrinolytic treatment showed no effect on the reported rate of hydrocephalus in five trials (RR 1.11, 95% CI 0.90 to 1.36). AUTHORS' CONCLUSIONS The current evidence does not support the use of antifibrinolytic drugs in the treatment of people with aneurysmal subarachnoid haemorrhage, even in those who have concomitant treatment strategies to prevent cerebral ischaemia. Results on short-term treatment are promising, but not conclusive. Further randomised trials evaluating short-term antifibrinolytic treatment are needed to evaluate its effectiveness.
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Affiliation(s)
- Merih I Baharoglu
- University of AmsterdamDepartment of Neurology, Academic Medical CentrePO Box 22660AmsterdamNetherlands1100 DD
| | - Menno R Germans
- University of AmsterdamDepartment of Neurosurgery, Academic Medical CentrePO Box 22660AmsterdamNetherlands1100 DD
| | - Gabriel JE Rinkel
- University Medical Center UtrechtDepartment of Neurology and NeurosurgeryPO Box 85500UtrechtNetherlands3508 GA
| | - Ale Algra
- University Medical Center UtrechtJulius Center for Health Sciences and Primary Care/University Department of Neurology and NeurosurgeryPO Box 85500UtrechtNetherlands3508 GA
| | - Marinus Vermeulen
- University of AmsterdamDepartment of Neurology, Academic Medical CentrePO Box 22660AmsterdamNetherlands1100 DD
| | - Jan van Gijn
- University Medical Center UtrechtDepartment of NeurologyPO Box 85500UtrechtNetherlands3508 GA
| | - Yvo BWEM Roos
- University of AmsterdamDepartment of Neurology, Academic Medical CentrePO Box 22660AmsterdamNetherlands1100 DD
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Huang RQ, Jiang FG, Feng ZM, Wang TY. Nicardipine in the treatment of aneurysmal subarachnoid haemorrhage: a meta-analysis of published data. Acta Neurol Belg 2013; 113:3-6. [PMID: 23111775 DOI: 10.1007/s13760-012-0142-x] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/26/2012] [Accepted: 09/27/2012] [Indexed: 11/29/2022]
Abstract
Nicardipine is a dihydropyridine-type Ca(2+) channel blocker with a powerful antihypertensive activity and a unique cerebrovascular profile. Recent studies have examined nicardipine for the treatment of patients with aneurysmal subarachnoid haemorrhage (SAH), but have shown inconsistent results. In the current study, a meta-analysis was performed to assess the clinical effectiveness of nicardipine in the prevention of cerebral vasospasm in patients who had suffered from aneurysmal SAH. Medline, EMBASE, and PubMed databases were searched for the controlled trials evaluating nicardipine for treating SAH after a ruptured aneurysm, without language restrictions. Moreover, a manual search of the bibliographies of relevant articles was also conducted. Two researchers of the present study independently performed the literature search and the data extraction. The meta-analyses were performed using the software RevMan 4.2.10 (provided by the Cochrane Collaboration, Oxford, UK). Five published manuscripts involving 1,154 patients were included in this meta-analysis. Nicardipine infusion reduced the risk of poor outcome (death, vegetative state, or dependency) and mortality, with an odds ratio (OR) of 0.58 [95 % confidence interval (CI) 0.37-0.90] and 0.45 (95 % CI 0.15-1.29), respectively. This meta-analysis suggests that nicardipine therapy reduces the likelihood of poor outcome and mortality in patients after aneurysmal SAH.
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Affiliation(s)
- Ren-qiang Huang
- Department of Neurosurgery, Guilin 181st Hospital, School of Medicine, Southern Medical University (Guangzhou), Guilin, 541002, Guangxi Province, China
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15
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Ibrahim GM, Macdonald RL. Electrocardiographic Changes Predict Angiographic Vasospasm After Aneurysmal Subarachnoid Hemorrhage. Stroke 2012; 43:2102-7. [DOI: 10.1161/strokeaha.112.658153] [Citation(s) in RCA: 32] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Affiliation(s)
- George M. Ibrahim
- From the Division of Neurosurgery, St. Michael's Hospital, Labatt Family Centre of Excellence in Brain Injury and Trauma Research, Keenan Research Centre of the Li Ka Shing Knowledge Institute of St. Michael's Hospital and Department of Surgery, University of Toronto, Toronto, Ontario, Canada
| | - R. Loch Macdonald
- From the Division of Neurosurgery, St. Michael's Hospital, Labatt Family Centre of Excellence in Brain Injury and Trauma Research, Keenan Research Centre of the Li Ka Shing Knowledge Institute of St. Michael's Hospital and Department of Surgery, University of Toronto, Toronto, Ontario, Canada
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Ibrahim GM, Vachhrajani S, Ilodigwe D, Kassell NF, Mayer SA, Ruefenacht D, Schmiedek P, Weidauer S, Pasqualin A, Macdonald RL. Method of Aneurysm Treatment Does Not Affect Clot Clearance After Aneurysmal Subarachnoid Hemorrhage. Neurosurgery 2011; 70:102-9; discussion 109. [DOI: 10.1227/neu.0b013e31822e5a8e] [Citation(s) in RCA: 29] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022] Open
Abstract
Abstract
BACKGROUND
Patients undergoing neurosurgical clipping or endovascular coiling of a ruptured aneurysm may differ in their risk of vasospasm.
OBJECTIVE
Because clot clearance affects vasospasm, we tested the hypothesis that clot clearance differs in patients depending on method of aneurysm treatment.
METHODS
Exploratory analysis was performed on 413 patients from CONSCIOUS-1, a prospective randomized trial of clazosentan for the prevention of angiographic vasospasm in patients with aneurysmal subarachnoid hemorrhage (SAH). Clot clearance was measured by change in Hijdra score between baseline computed tomography and one performed 24 to 48 hours after aneurysm treatment. Angiographic vasospasm was assessed by the use of catheter angiography 7 to 11 days after SAH, and delayed ischemic neurological deficit (DIND) was determined clinically. Extended Glasgow Outcome Score (GOSE) was assessed 3 months after SAH, and poor outcome was defined as death, vegetative state, or severe disability. Multivariable ordinal and binary logistic regression were used.
RESULTS
There was no significant difference in the rate of clot clearance between patients undergoing clipping or coiling (P = .56). Coiling was independently associated with decreased severity of angiographic vasospasm (odds ratio [OR] 0.53, 95% confidence interval [CI] 0.33-0.86), but not with DIND or GOSE. Greater clot clearance decreased the risk of severe angiographic vasospasm (OR 0.86, 95% CI 0.81-0.91), whereas higher baseline Hijdra score predicted increased angiographic vasospasm (OR 1.17, 95% CI 1.11-1.23) and poor GOSE (OR 1.09, 95% CI 1.04-1.14).
CONCLUSION
Aneurysm coiling and increased clot clearance were independently associated with decreased severity of angiographic vasospasm in multivariate analysis, although no differences in clot clearance were seen between coiled and clipped patients.
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Affiliation(s)
- George M. Ibrahim
- Division of Neurosurgery, St. Michael's Hospital, Labatt Family Centre of Excellence in Brain Injury and Trauma Research, Keenan Research Centre of the Li Ka Shing Knowledge Institute of St. Michael's Hospital and Department of Surgery, University of Toronto, Toronto, Ontario, Canada
| | - Shobhan Vachhrajani
- Division of Neurosurgery, St. Michael's Hospital, Labatt Family Centre of Excellence in Brain Injury and Trauma Research, Keenan Research Centre of the Li Ka Shing Knowledge Institute of St. Michael's Hospital and Department of Surgery, University of Toronto, Toronto, Ontario, Canada
| | - Don Ilodigwe
- Division of Neurosurgery, St. Michael's Hospital, Labatt Family Centre of Excellence in Brain Injury and Trauma Research, Keenan Research Centre of the Li Ka Shing Knowledge Institute of St. Michael's Hospital and Department of Surgery, University of Toronto, Toronto, Ontario, Canada
| | - Neal F. Kassell
- Department of Neurological Surgery, University of Virginia School of Medicine, Charlottesville, Virginia
| | | | | | | | | | | | - R. Loch Macdonald
- Division of Neurosurgery, St. Michael's Hospital, Labatt Family Centre of Excellence in Brain Injury and Trauma Research, Keenan Research Centre of the Li Ka Shing Knowledge Institute of St. Michael's Hospital and Department of Surgery, University of Toronto, Toronto, Ontario, Canada
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Abstract
Modern anesthesia is handling an increasing number of patients with neurological diseases who require narcosis. Regional anesthesia techniques offer qualities which might be advantageous for this group particularly for childbirth. The number of pregnant women with neurological diseases has increased significantly in the recent years due to improved diagnostics and therapy. A more careful approach to regional anesthesia in patients with neurological diseases is necessary as the drugs themselves possess neurotoxic effects and the procedure might worsen the underlying neurological diseases. Additionally, performing regional anesthesia might be more complicated and the resulting blockade might be different from the expected neuronal block. Published data concerning regional anesthesia in this patient group are limited and mainly restricted to case reports. In this review general considerations regarding regional anesthesia, techniques, drugs and methods in these patient groups will be discussed. In the second part the practical approach to regional anesthesia for some of the most important neurological diseases is highlighted.
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Affiliation(s)
- B Sinner
- Klinik für Anästhesiologie, Universität Regensburg, Franz-Josef-Strauss Allee 11, 93053 Regensburg.
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Rabinstein AA, Lanzino G, Wijdicks EFM. Multidisciplinary management and emerging therapeutic strategies in aneurysmal subarachnoid haemorrhage. Lancet Neurol 2010; 9:504-19. [DOI: 10.1016/s1474-4422(10)70087-9] [Citation(s) in RCA: 92] [Impact Index Per Article: 6.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/17/2023]
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Ma L, Liu WG, Zhang JM, Chen G, Fan J, Sheng HS. Magnesium sulphate in the management of patients with aneurysmal subarachnoid haemorrhage: A meta-analysis of prospective controlled trials. Brain Inj 2010; 24:730-5. [DOI: 10.3109/02699051003610516] [Citation(s) in RCA: 29] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022]
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