Outcome 1 year after aneurysmal subarachnoid hemorrhage: relation between cognitive performance and neuroimaging

OBJECTIVE: To assess the cognitive impairment and the association between neuropsychological measures and neuroimaging 1 year after aneurysmal subarachnoid hemorrhage (SAH). METHOD: Forty-two patients were examined clinically according to Glasgow Outcome Scale (GOS). Computed tomography (CT), single photon emission computed tomography (SPECT) and neuropsychological examination were performed. RESULTS: There were no association between GOS and cognitive impairment index based on the neuropsychological examination. CT showed no sign of cerebral ischemia in 17 (40%) and low attenuating areas indicating cerebral infarction(s) in 25 (60%) patients. A significant correlation (P = 0.01) was observed between the cognitive impairment index and the SPECT index (r = 0.6). SPECT measurement was the only independent predictor for cognitive impairment. CONCLUSION: GOS is a crude outcome measure and patients classified with good recoveries may have significant cognitive deficits. Neuropsychological examination is the preferred method for outcome evaluation as this method specifically addresses the disabilities affecting patients' everyday life.     

Severe cognitive impairment in aneurysmal subarachnoid hemorrhage: Predictors and relationship to functional outcome

BackgroundCognitive impairment is common after aneurysmal subarachnoid hemorrhage (SAH). However, compared to predictors of functional outcome, meaningful predictors of cognitive impairment are lacking.ObjectiveOur goal was to assess which factors during hospitalization can predict severe cognitive impairment in SAH patients, especially those who might otherwise be expected to have good functional outcomes. We hypothesized that the degree of early brain injury (EBI), vasospasm, and delayed neurological deterioration (DND) would predict worse cognitive outcomes.MethodsWe retrospectively reviewed SAH patient records from 2013 to 2019 to collect baseline information, clinical markers of EBI (Fisher, Hunt–Hess, and Glasgow Coma scores), vasospasm, and DND. Cognitive outcome was assessed by Montreal Cognitive Assessment (MoCA) and functional outcomes by modified Rankin Scale (mRS) at hospital discharge. SAH patients were compared to non-neurologic hospitalized controls. Among SAH patients, logistic regression analysis was used to identify predictors of severe cognitive impairment defined as a MoCA score <22.ResultsWe screened 288 SAH and 80 control patients. Cognitive outcomes assessed via MoCA at discharge were available in 105 SAH patients. Most of these patients had good functional outcome at discharge with a mean mRS of 1.8±1.3. Approximately 56.2% of SAH patients had MoCA scores <22 compared to 28.7% of controls. Among SAH patients, modified Fisher scale was an independent predictor of cognitive impairment after adjustment for baseline differences (OR 1.638, p=0.043). MoCA score correlated inversely with mRS (r=−0.3299, p=0.0006); however, among those with good functional outcome (mRS 0–2), 48.7% still exhibited cognitive impairment.ConclusionsSevere cognitive impairment is highly prevalent after SAH, even among patients with good functional outcome. Higher modified Fisher scale on admission is an independent risk factor for severe cognitive impairment. Cognitive screening is warranted in all SAH patients, regardless of functional outcome.     

Neurological and psychosocial outcome after subarachnoid haemorrhage, and the hunt and hess scale as a predictor of clinical outcome

In a retrospective study, the outcome of 87 patients with ruptured intracranial aneurysm was assessed. Follow-up included neurological examination, grading of the Glasgow Outcome Scale (GOS) of each patient, and answering a psycho-social questionnaire. This questionnaire was answered by the patients themselves or by a relative when the patient was not able to answer. The follow-up was performed more than 12 months after the occurrence of subarachnoid hemorrhage (SAH) in each patient. The psycho-social questionnaire pertained to the degree of independence in everyday activities, household management, stress endurance, memory and concentration, social and leisure activities, social contacts, occupational status, and marital relationships. By summarizing the results of these domains, the quality of life was then determined using the method described by McKenna et al. Neurological deficits in the form of an incomplete paresis of the third cranial nerve and subjective reduction of memory and concentration were identified in 3.5 % and 34.5-39 % of the patients, respectively. Of the 87 study participants, 58.2 % were fully independent, 22.4 % were able to live at home with the support of their relatives, and 5 patients were fully dependent. The occupational status of 21 patients who were fully employed before SAH was unaffected, whereas 3 patients were placed in positions with less responsibility, and 21 patients were either unable to continue working, unemployed, or retired. The quality of life was not reduced in 57.2 %, while a mild reduction in the quality of life was reported by 23.8 % and a severe reduction by 19.0 % of the participants. The ability of the initial Hunt and Hess grade, the initial Fisher grade, the extent of neurological deficits, and the occupational status after SAH to predict the patient's outcome was also evaluated. For statistical analysis, the Kendall-Tau-b-test for non-parametric correlations was applied. Significant correlations were found between the initial Hunt and Hess grade and the initial Fisher grade, between neurological deficits and GOS, between quality of life and occupational outcome, as well as between the GOS and quality of life assessment, but not between initial Hunt and Hess grade and GOS or quality of life, between neurological deficits and quality of life, between initial Hunt and Hess grade and occupational outcome, between initial Fisher grade and occupational outcome, and also not between initial Fisher grade and GOS or quality of life. Our results suggest that neither the initial Hunt & Hess grade nor the initial Fisher grade are suitable parameters for predicting the outcome of patients with ruptured intracranial aneurysms. The fact that GOS and quality of life correlated significantly confirms the use of GOS as a simple method for evaluating patient outcome, although it is not a grading system for evaluating functional disorders such as memory or subtle cognitive impairments.     

Apolipoprotein E polymorphism and neuropsychological outcome following subarachnoid haemorrhage

OBJECTIVES: To investigate the association between APOE genotype and cognitive and emotional outcome following spontaneous subarachnoid haemorrhage (SAH). MATERIALS AND METHODS: Neuropsychological assessments were conducted with 70 SAH survivors derived from a consecutive series of neurosurgical admissions. Outcomes, including cognitive tests, health questionnaires and Glasgow Outcome Scale at a mean of 16 months after SAH, were compared with presence or absence of the epsilon4 allele. RESULTS: There was no evidence that SAH survivors possessing the epsilon4 allele had poorer outcome. The only suggestion of an association between the epsilon4 allele and outcome was in a subgroup of patients with a Fisher grade 4 haemorrhage, although this trend did not reach statistical significance. CONCLUSIONS: Overall, possession of the APOE epsilon4 allele is not significantly associated with neuropsychological outcome following SAH. However, there may be an effect amongst those with a Fisher grade 4 haemorrhage.     

动脉瘤性蛛网膜下腔出血患者认知功能影响因素研究

目的研究动脉瘤性蛛网膜下腔出血（SAH）患者认知功能的动态变化及其影响因素。方法以简易智能量表评估入院时、出院时和出院后2个月患者的认知功能;以Hunt-Hess、GCS、手术方式、GOS、年龄、性别和入院时并发症为变量,研究其与SAH患者认知功能间的关系。结果 100例动脉瘤性SAH患者认知功能损害率入院时为37%,出院时60%,出院后2个月38%;出院时认知功能损害率高于入院时（χ2=10.590,P=0.001）和出院后2个月（χ2=9.684,P=0.002）;对出院时认知功能有显著影响的因素是Hunt-Hess、GOS和手术方式,对出院后2个月认知功能有显著影响的因素是GOS。结论动脉瘤性蛛网膜下腔出血患者存在一定程度的认知功能损害,并与一定的影响因素相关;血管内治疗有助于减轻认知功能的损害。     

Global and domain-specific cognitive impairment and outcome after subarachnoid hemorrhage

BACKGROUND: Cognitive dysfunction is the most common form of neurologic impairment after subarachnoid hemorrhage (SAH). OBJECTIVE: To evaluate the impact of global and domain-specific cognitive impairment on functional recovery and quality of life (QOL) after SAH. METHODS: One hundred thirteen patients (mean age 49 years; 68% women) were evaluated 3 months after SAH. Three simple tests of global mental status and neuropsychological tests to assess seven specific cognitive domains were administered. Four aspects of outcome (global handicap, disability, emotional status, and QOL) were compared between cognitively impaired and unimpaired patients with analysis-of-covariance models controlling for age, race/ethnicity, and education. Multiple linear regression was used to evaluate the relative contribution of global and domain-specific cognitive status for predicting concurrent modified Rankin Scale (mRS) and Sickness Impact Profile (SIP) scores. RESULTS: Impairment of global mental status on the Telephone Interview of Cognitive Status (TICS) was associated with poor performance in all seven cognitive domains (all p < 0.0005) and was the only cognitive measure associated with poor recovery in all four aspects of outcome (all p < or = 0.005). Cognitive impairment in four specific domains was also associated with functional disability or reduced QOL. After accounting for global cognitive impairment with the TICS, however, neuropsychological testing did not contribute additional predictive value for concurrent mRS or SIP total scores. CONCLUSIONS: Cognitive impairment impacts broadly on functional status, emotional health, and QOL after SAH. The TICS may be a useful alternative to more detailed neuropsychological testing for detecting clinically relevant global cognitive impairment after SAH.     

Does the method of treatment of acutely ruptured intracranial aneurysms influence the incidence and duration of cerebral vasospasm and clinical outcome?

OBJECTIVES: Cerebral vasospasm remains the leading cause of death and permanent disability after subarachnoid haemorrhage. This study determined whether the method of aneurysm treatment plays an important role in determining the incidence of cerebral vasospasm and its clinical consequences. METHODS: Admission data, cranial computed tomography (CT), treatment details, transcranial Doppler (TCD) results, and clinical outcomes of patients who had surgical or endovascular management of their ruptured aneurysm were recorded and subject to multivariate analysis. RESULTS: Between January 1995 and December 1999, 292 eligible patients (206 female, 86 male) had definitive aneurysm treatment at our unit. 212 patients were clipped, 80 coiled. There was no significant difference in patient age, pre-treatment neurological grade, Fisher grade, or timing of treatment in the two groups. 48.3% patients developed TCD detected cerebral vasospasm and 16.1% patients developed permanent ischaemic neurological deficit. At clinical follow up, 84.2% of patients were well (mGOS 1 and 2) with a cumulative death rate of 6.5% from all causes. The only significant predictor of TCD-detected cerebral vasospasm was patient age (inversely, p = 0.004). Increased patient age, vasospasm, poor pre-treatment WFNS, and higher CT Fisher grades correlated with a poor discharge GOS. However, only poor pre-treatment WFNS grade and patient age correlated with poor GOS at follow up (p<0.001). CONCLUSION: The treatment method had no influence on the incidence or duration of TCD detected vasospasm and there was no significant difference in outcome at discharge or follow up between those patients who had surgery or endovascular management of their aneurysms.     

Prognostic value of biochemical markers of brain damage and oxidative stress in post-surgical aneurysmal subarachnoid hemorrhage patients

The aim of this study is to determine effective biochemical markers and optimal sampling timing for prediction of neurological prognosis in post-surgical aneurysmal subarachnoid hemorrhage (SAH) patients. Subjects were a sequential group of SAH patients admitted to our centre who underwent aneurysm clipping before Day 3 and who received a cerebrospinal fluid (CSF) drain. CSF samples from 32 patients were collected on Days 3, 7, and 14. Neurological outcome was assessed by neurosurgeons using the Glasgow outcome scale (GOS) at 6 months after onset. CSF levels of neuron-specific enolase (NSE), S100B, and glial fibrillary acidic protein (GFAP) were determined using enzyme-linked immunosorbent assay, and the CSF concentrations of malondialdehyde (MDA) were determined using spectrophotometric assay. In univariate analysis, S100B on Days 3 and 14, GFAP on Days 3 and 7, and MDA on Day 14 were significantly higher in the poor outcome group (GOS 1-4) than in the good outcome group (GOS 5). In multivariate analysis, only MDA on Day 14 was identified as a significant predictor of poor neurological outcome at 6 months after onset. The area under the receiver-operating characteristic (ROC) curve for MDA on Day 14 was 0.841. For a threshold of 0.3 μM, sensitivity and specificity were 0.875 and 0.750, respectively. Our findings suggest that these biochemical markers, especially MDA, show significant promise as predictors of neurological outcome in clinical practice.     

A prospective study of psychosocial adaptation following subarachnoid haemorrhage

Abstract

In this prospective study a series of 89 patients with subarachnoid haemorrhage (SAH), most of whom had a “good” neurological outcome, were interviewed 10 weeks and 12 monts following their SAH about changes in psychosocial functioning since their SAH, and the presence of symptoms, such as excessive fatigue, that can influence psychosocial functioning. Information was also gathered from close relatives whenever possible. Data about a range of “SAH factors”, including site of aneurysm, patient clinical grade, and vasospasm, were also gathered at the time of hospitalisation, and subjects were graded according to the Glasgow Outcome Scale (GOS) at each follow-up assessment. Statistical analyses to see whether these factors were predictive of later psychosocial impairment were carried out. A high proportion of subjects demonstrated some mild to moderate psychosocial impairments at 10 weeks and, although recovery occurred in some areas over the next 8 months, 86% of subjects still suffered from excessive fatigue and 55% from hypersensitivity to noise at the 12-month assessment. Of the subjects who were employed at the time of their SAH and had a good neurological outcome, 59% were either unemployed or were working reduced hours at the 12-month follow-up. Overall the GOS was not sensitive to psychosocial impairment, as 87% of the subjects had a GOS of “1” at both 10 weeks and 12 months. The small number of subjects who demonstrated vasospasm or had a poor neurological grade on discharge from hospital and at follow-up were more likely to report changes in temperament, leisure activities, and social behaviour at follow-up.     

Long-term neurological and neuropsychological outcome in patients with severe traumatic brain injury

Background

Severe traumatic brain injury (TBI) remains a major cause of death and disability worldwide. The aim of the study was to evaluate predictors for neurological and neuropsychological long-term outcome in patients with severe TBI treated according to an intracranial pressure (ICP-) targeted therapy.

Methods

From 08/2005 to 12/2008, 46 patients with severe TBI and more than 12 h of intensive care treatment were included in this study. Neurological outcome was assessed with the Glasgow Outcome Scale (GOS). Neuropsychological performance assessing 9 different domains was evaluated at long-term follow-up (median 20.5 months; range 10–46). Logistic regression was used to identify favourable outcomes according to the GOS and Fisher's exact tests were used to identify predictors of severe neuropsychological impairments at follow-up.

Results

Twenty-nine patients were available for neuropsychological assessment at long-term follow-up. Only 2 out of 29 patients presented normal or average neuropsychological findings throughout all 9 neuropsychological domains at long-term follow-up. The percentage of a favourable outcome (GOS 4-5) increased from 13.8% at hospital discharge to 75.8% at rehabilitation discharge to 79.3% at long-term follow-up, respectively. Age ≤40 was found to be a strong predictor of favourable outcome at follow-up (OR 5.95, 95% CI 1.41 25.00, p = 0.015). The GOS at hospital discharge was not a predictor for severe impairments in any of the 9 different neuropsychological domains (all p-values were p > 0.268). In contrast, the GOS at rehabilitation discharge was found to be a predictor of severe impairments at follow-up in all but one domain assessed (all p-values less than p < 0.038).

Conclusions

The GOS at rehabilitation discharge should be regarded as a better predictor for neuropsychological impairments at long-term follow-up than the GOS at hospital discharge. Even in patients with favourable GOS after finishing a course of rehabilitation, three quarters of these patients may have at least one severe neuropsychological deficit. Therefore, it remains of paramount importance to provide long-term neuropsychological support to further improve outcome after TBI.     

Roller coaster-associated subarachnoid hemorrhage--report of 2 cases

The most common neurological injuries associated with roller coaster rides are subdural hematoma and cervical artery dissection. We report two cases of roller-coaster associated subarachnoid hemorrhage (SAH). A 40-year-old healthy man developed a strong, holocephalic headache during a roller coaster ride. SAH Hunt & Hess grade II and Fisher grade 3 was diagnosed. An underlying aneurysm of the anterior communicating artery was successfully treated with coil embolization. A 41-year-old female (smoker, otherwise healthy) experienced a sudden, strong headache and diplopia during a roller coaster ride. A perimesencephalic SAH (Hunt & Hess grade II, Fisher grade 3) was disclosed by a CT scan. No aneurysm was detected on angiography. Both patients were discharged without neurological disability. In conclusion, SAH is a rare but relevant differential diagnosis in cases of acute headache during roller coaster rides. Both aneurysmal and non-aneurysmal perimesencephalic SAH can occur. A combination of mechanical factors and excessive blood pressure rises in vulnerable persons is discussed.     

Cognitive and emotional consequences of perimesencephalic subarachnoid hemorrhage

Little is known about the long-term cognitive-functional outcome of patients with perimesencephalic subarachnoid haemorrhage (PM SAH). We investigated the neurological, cognitive and emotional consequences of perimesencephalic subarachnoid haemorrhage in eighteen PM SAH patients admitted between November 1990 and July 1997 to the Neurology/Neurosurgery services of a University Hospital. The follow-up interview, a neurological examination, an headache questionnaire, a neurophysiological evaluation (Mini-Mental State and a complementary battery to assess specific cognitive domains), the Hamilton Depression Rating Scale (HDRS) and the Blessed Dementia Scale. Thirteen patients performed below the 10^th percentile in at least one cognitive domain. Six patients scored more than 12 points on the HDRS. Mini-Mental State and HDRS scores were moderately correlated (r = 0.55). Only three patients left their previous occupation. Minor cognitive deficits and high scores on a depression scale were frequent findings in this cohort of PM SAH patients. Reasurance and treatment of depressive symptoms could be important to improve the long-term outcome of PM SAH patients. Received: 13 September 1999 / Received in revised form: 23 May 2000 / Accepted: 6 June 2000     

The prediction of long-term outcome after subarachnoid hemorrhage as measured by the Short Form-36 Health Survey

The Glasgow Outcome Scale (GOS) score is widely used to assess outcome after a subarachnoid hemorrhage (SAH). Patients who have recovered fully or with a mild disability (GOS scores 4 and 5) frequently complain about difficulties in conducting their daily activities. The Short Form-36 (SF-36) Health Survey is a questionnaire that assesses outcomes in multiple categories. This study was conducted to compare the quality of outcome assessment between the SF-36 Health Survey and GOS scores. A total of 128 patients with SAH (all data expressed as mean ± standard deviation) aged 53.1 ± 12.1 years, and a mean Hunt and Hess grade on admission of 2 ± 1, were retrospectively included in the study. Medical charts were reviewed to assess previous medical history, location of the aneurysm and the presence of vasospasm. The SF-36 and GOS scores were collected in structured interviews approximately 5 years (±2 years) after the SAH. The SF-36 data were compared to a historical healthy control cohort of 2,474 individuals. The results showed that 52% of patients experienced a favourable outcome after SAH (GOS scores 4 and 5). Vasospasm was recorded in 25% of patients. However, the average SF-36 results were lower in all tested categories for patients after SAH than the healthy normal controls. None of the SF-36 categories except physical function correlated significantly with the GOS score. Aneurysm location did not have an impact on SF-36 data. Patients after a SAH assessed as GOS score 5 are significantly impaired in social functioning and general health. We conclude that patients continue to suffer neuropsychological deficits years after a SAH. The GOS score is a rough outcome measure that primarily focuses on physical functioning. SF-36 is a useful tool to include in the neuropsychological outcome assessment of patients with SAH.     

Aneurysmal SAH: cognitive outcome and structural damage after clipping or coiling.

BACKGROUND: Aneurysmal subarachnoid hemorrhage (SAH) and surgical clipping of intracranial aneurysms are associated with substantial morbidity and mortality. OBJECTIVE: To compare cognitive outcome and structural damage in patients with aneurysmal SAH treated with surgical clipping or endovascular coiling. METHODS: Forty case-matched pairs of patients with aneurysmal SAH treated by surgical clipping or endovascular coiling were prospectively assessed by use of a battery of cognitive tests. Twenty-three case-matched pairs underwent MRI 1 year after the procedure. Matching was based on grade of SAH on admission, location of aneurysm, age, and premorbid IQ. RESULTS: Both groups were impaired in all cognitive domains when compared with age-matched healthy control subjects. Comparison of cognitive outcome between the two groups indicated an overall trend toward a poorer cognitive outcome in the surgical group, which achieved significance in four tests. MRI showed focal encephalomalacia exclusively in the surgical group. This group also had a significantly higher incidence of single or multiple small infarcts within the vascular territory of the aneurysm, but both groups had similar incidence of large infarcts and global ischemic damage. CONCLUSION: Endovascular treatment may cause less structural brain damage than surgery and have a more favorable cognitive outcome. However, cognitive outcome appears to be dictated primarily by the complications of SAH.     

The Utility and Benefits of External Lumbar CSF Drainage after Endovascular Coiling on Aneurysmal Subarachnoid Hemorrhage

Objective

Cerebral vasospasm still remains a major cause of the morbidity and mortality, despite the developments in treatment of aneurysmal subarachnoid hemorrhage. The authors measured the utility and benefits of external lumbar cerebrospinal fluid (CSF) drainage to prevent the clinical vasospasm and its sequelae after endovascular coiling on aneurysmal subarachnoid hemorrhage in this randomized study.

Methods

Between January 2004 and March 2006, 280 patients with aneurysmal subarachnoid hemorrhage were treated at our institution. Among them, 107 patients met our study criteria. The treatment group consisted of 47 patients who underwent lumbar CSF drainage during vasospasm risk period (about for 14 days after SAH), whereas the control group consisted of 60 patients who received the management according to conventional protocol without lumbar CSF drainage. We created our new modified Fisher grade on the basis of initial brain computed tomography (CT) scan at admission. The authors established five outcome criteria as follows : 1) clinical vasospasm; 2) GOS score at 1-month to 6-month follow-up; 3) shunt procedures for hydrocephalus; 4) the duration of stay in the ICU and total hospital stay; 5) mortality rate.

Results

The incidence of clinical vasospasm in the lumbar drain group showed 23.4% compared with 63.3% of individuals in the control group. Moreover, the risk of death in the lumbar drain group showed 2.1% compared with 15% of individuals in the control group. Within individual modified Fisher grade, there were similar favorable results. Also, lumbar drain group had twice more patients than the control group in good GOS score of 5. However, there were no statistical significances in mean hospital stay and shunt procedures between the two groups. IVH was an important factor for delayed hydrocephalus regardless of lumbar drain.

Conclusion

Lumbar CSF drainage remains to play a prominent role to prevent clinical vasospasm and its sequelae after endovascular coiling on aneurysmal subarachnoid hemorrhage. Also, this technique shows favorable effects on numerous neurological outcomes and prognosis. The results of this study warrant clinical trials after endovascular treatment in patients with aneurysmal SAH.     

Familial subarachnoid hemorrhage. Outcome study

BACKGROUND AND PURPOSE: The aim of our study was to compare outcome and its determinants in familial subarachnoid hemorrhage and in sporadic subarachnoid hemorrhage in a large and well-documented patient population. METHODS: Patients with aneurysmal subarachnoid hemorrhage (SAH) treated at the Department of Neurosurgery, Kuopio University Hospital, from 1977 to 1995 were included. Patients with polycystic kidney disease were excluded. The Glasgow Outcome Scale (GOS) score at 12 months was studied. RESULTS: There were 120 patients (97 first-, 15 second-, and 8 third-degree family connections) in 96 different families with familial SAH and 1237 patients with sporadic SAH. Age, gender, and admission grade on the Hunt and Hess scale did not differ between these 2 groups. In both groups >80% of patients were in relatively good condition at admission. The outcome was good (GOS score of 1 to 2) in 87 patients (73%) with familial SAH and in 874 patients (71%) with sporadic SAH. Analysis of 20 variables, including presence of coexisting diseases, aneurysm site and size, amount of blood shown on CT scan, intraventricular bleeding, preoperative intracerebral hematoma and hydrocephalus, as well as postoperative bleeding and vasospasm, revealed no significant differences between study groups. The degree of family connection (first-, second-, and third-degree) did not have any statistically important effect on outcome in the familial group in the Finnish study population. In multivariate analysis the knowledge of familial SAH was not an independent prognostic factor. CONCLUSIONS: Admission status, postoperative course, and outcome were similar in the familial and sporadic SAH groups in this Finnish population, in contrast to previous results. Familial SAH may not be a significant risk factor for poor outcome.     

Cardiac Troponin-I: A Predictor of Prognosis in Subarachnoid Hemorrhage

Background  Release of cardiac biomarkers is reported in patients with subarachnoid hemorrhage (SAH). Data addressing the impact of cardiac injury on outcome in these patients is sparse. This study was conducted to ascertain the association of elevation of serum cardiac Troponin-I (cTnI) with mortality and neurological outcome in patients with SAH. Methods  Medical records of all patients admitted with a diagnosis of SAH and at least one measured cTnI were reviewed. Demographic and clinical variables including admission neurological status were collected. Conservative and non-parametric statistics were used to assess association between cTnI and death or neurological outcome at discharge. Results  The study group comprised of 83 patients with a mean age of 59 years. There was a female (60%) and African-American (60%) preponderance. At admission, the median Glasgow Coma Scale (GCS) was 9, and 47% had a severe Hunt–Hess grade (HHG) of ≥4. Elevation of cTnI was found in 31 (37%) patients and was associated with worse baseline Fisher grade (p=0.01) and neurological status: GCS score (p=0.006) and HHG (p=0.007). Patients with abnormal cTnI were more likely to die (55% vs.27%; odds ratio 1.3–8.4, p = 0.01) and had a worse GCS score (p = 0.008) and HHG (p = 0.004) on discharge. On multivariate analysis, peak cTnI (p = 0.04) and admission GCS score of <12 (p = 0.02) were independent predictors of death at discharge. Conclusion  Patients with subarachnoid hemorrhage and elevated cTnI are found to have worse neurological status at admission. These patients have a worse neurological outcome and in-hospital mortality.     

Neurological, neuropsychological, and functional outcome following treatment for unruptured intracranial aneurysms.

The objective of this study was to carry out a detailed investigation of the neurological, neuropsychological, and return-to-work status of treatment for unruptured intracranial aneurysms (UIAs). A prospective design was used to evaluate the outcome of UIA treatment in a group of 26 UIA patients. Over a 24-month period UIA patients were assessed prior to treatment, during hospitalization, at three months and at six months following treatment. Their performance was compared to a group of 20 matched controls. Neurological morbidity as a result of the UIA treatment was 5%, as assessed by the Glasgow Outcome Scale (GOS) or Rankin at 3 months. The Telephone Interview for Cognitive Status (TICS) proved to be unreliable as a measure of cognitive change. Reliability of change analysis was more sensitive than group analysis, and revealed a pattern of cognitive deficits in 10% of patients as a result of the UIA treatment. In addition, 25% of patients reported a change in work role as a result of the UIA treatment. While 10% of patients sustained mild to moderate neurological and cognitive impairments 3 to 6 months following UIA treatment, their deficits were not as wide-ranging nor as severe as those sustained by patients who survive a subarachnoid hemorrhage (SAH).     

S-100B and NSE: markers of initial impact of subarachnoid haemorrhage and their relation to vasospasm and outcome.

S100-B and neuron specific enolase (NSE) are known predictors of outcome in head injured and stroke patients. This study was conducted to test the hypothesis that S-100B and NSE can predict the development of vasospasm and outcome within the first 3 days after subarachnoid haemorrhage (SAH). Fifty-one SAH patients (mean age 51+/-11 years, male : female ratio 1.0 : 1.6, mean World Federation of Neurological Surgeons [WFNS] Grade 3+/-1.5) were included in the study. S100-B and NSE were recorded in venous blood across the first 3 days post-SAH. Vasospasm was diagnosed if mean blood flow velocity of the middle cerebral artery was greater than 120 cm/s and Lindegaard ratio >3. Glasgow Outcome Score (GOS) and cranial CT scans were recorded at 6 months. Normal, intermediate and high S-100B values were seen in 24%, 51% and 25% of patients, respectively. In patients with S-100B>1 microg/L, Fisher Grade 4 and WFNS 4-5 were both seen in 77% of cases. S-100B was significantly higher in those patients who did not develop vasospasm. In addition, S-100B values were significantly higher in those patients who died than in those with unfavourable or favourable outcome. NSE was normal, intermediate and high in 82%, 8% and 10% of patients, respectively. Patients with WFNS 4-5 and/or Fisher Grade 4 had significantly higher NSE values than all others. Across the first 3 days after SAH, measuring S-100B is useful to predict outcome and vasospasm.     

动脉瘤性蛛网膜下腔出血血管内栓塞后D—dimer浓度变化与预后的关系

目的探讨动脉瘤性蛛网膜下腔出血（SAH）血管内栓塞后D-dimer浓度的变化以及D-dimer浓度升高能否做为预后不良的独立预测因素。方法对204例发病48h内人住我院和郑州大学第二附属医院神经内科的SAH病人,在手术当天早晨和动脉瘤填塞后14d检测血浆D-dimer浓度,3个月时根据格拉斯哥预后评分和CT随访脑梗塞的发生做为预后不良的预测因素。结果动脉瘤栓塞后预后不良的病人较预后良好者D—dimer浓度明显升高,手术当天2组各自平均为（1368±298）μg／L和（756土144）／xg／L,14d时分别为（1129±166）μg／I,和（356±73）μg／L,P〈O．001。重复检测发现,预后良好者D-climer浓度降低较快,排除其他影响因素后,D-dimer与预后不良有明显关系。结论SAH后血浆D-dimer升高是预后不良的独立预测因素,可能与凝血酶代谢产物过量积聚引起的损害有关。