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Vascular imaging is increasingly used for diagnosis of arterial occlusions in acute ischemic stroke (AIS) patients. Our aim was to determine whether computed tomography angiography (CTA) and Doppler/duplex ultrasound (DUS) before intravenous thrombolysis (IVT) is associated with a delay in time-to-treatment.Observational analysis of a prospective cohort of AIS patients treated with IVT from January 2009 to December 2012. Patients were classified into three groups: the noncontrast computed tomography (NCCT) group (patients studied only with NCCT before IVT), CTA group (patients who underwent CTA in addition to NCCT), and the DUS group (patients studied with NCCT+DUS).We treated 244 patients: 116 patients (47.5%) were studied with NCCT, 79 (32.4%) with CTA, and 49 (20.1%) with DUS. Door-to-needle time was significantly higher in the CTA group (median 60 [48-77] minutes) than in the NCCT group (51.5 [40-65]) and DUS group (48 [42-61]) (P = .008). No differences were observed for onset-to-door time and onset-to-needle time. In the multivariate linear regression analysis, onset-to-door time, prehospital stroke code activation, and performance of CTA influenced door-to-needle time.Performing CTA before IVT seems to increase door-to-needle time. Vascular imaging based on DUS should be considered only if this does not lead to in-hospital delay.

Alteplase licensing approval in Europe does not advocate intravenous thrombolysis (IVT) for diabetic ischaemic stroke (IS) patients with previous cerebral infarction (PCI). Our aim was to assess whether concomitant diabetes mellitus (DM) and PCI are associated with symptomatic intracerebral haemorrhage (SICH) and poor outcome after IVT.Multicentre prospective registry, which included consecutive IVT-treated, acute IS patients from January 2003 to December 2010. The frequency of SICH (SITS-MOST criteria) and 3-month outcomes (mRS) were compared between the following groups: (i) diabetic patients with PCI (DM+/PCI+); (ii) diabetic patients without PCI (DM+/PCI-); (iii) non-diabetic patients with PCI (DM-/PCI+); and (iv) patients without diabetes or PCI (DM-/PCI-).A total of 1475 patients were included. Thirty-four patients (2.3%) had known DM and PCI, 258 (17.5%) were diabetics without PCI, and 119 (8.1%) had a PCI and no DM. Thirty-six patients (2.6%) developed SICH, with no differences between groups (P = 985). Fifteen (40.9%) DM+/PCI+ patients, 113 (46.5%) DM+/PCI- patients, 47 (42%) DM-/PCI+ patients and 414 (40.9%) DM-/PCI- patients had mRS ≥ 3 at 3 months (P = 427). The presence neither of DM nor of PCI, nor their combination, had any impact on the risk of SICH or on outcome at 3 months after adjusting for age, stroke severity and glucose levels on admission.Acute IS diabetic patients with PCI who were treated with IVT had similar outcomes to patients without such history, with no increase in the rates of SICH. Thus, they should not be excluded from IVT only on the basis of DM and PCI.

Background and Purpose— We aimed to analyze the frequency of persistent hyperglycemia (PH), its implications for outcome, and to document the inpatient management of hyperglycemia. Methods— Post hoc analysis of the GLIAS (Glycemia in Acute Stroke) study, a multicenter, prospective, and observational cohort study of 476 acute ischemic stroke patients. Capillary finger-prick glucose was determined on admission and during the first 48 hours. We defined PH was defined as at least 2 values ≥155 mg/dL. Outcome (modified Rankin Scale) was evaluated at 3 months. Results— PH developed in 117 patients (24.7%). PH was associated with poorer outcome (modified Rankin Scale score >2: 56.2% vs 28.1%; P P Conclusions— PH ≥155 mg/dL is a common observation in acute ischemic stroke patients that is associated with poorer outcome and higher mortality. Almost 40% of patients maintained levels ≥155 mg/dL despite corrective treatment.

Background and Purpose—Evidence is accumulating regarding the prognostic influence of hyperglycemia in patients with acute ischemic stroke. However, the level associated with poor outcome is unknown. Our objectives were to establish the capillary glucose threshold with the highest predictive accuracy of poor outcome and to evaluate its hypothetical value in influencing functional outcome by adjusting for other well-known prognostic factors in acute stroke.Methods—The authors conducted a multicenter, prospective, and observational cohort study of 476 patients with ischemic stroke within less than 24 hours from stroke onset. Capillary finger-prick glucose and stroke severity were determined on admission and 3 times a day during the first 48 hours. Poor outcome (modified Rankin Scale >2) was evaluated at 3 months.Results—The receiver operating characteristic curves showed the predictive value of maximum capillary glucose at any time within the first 48 hours with an area under the curve of 0.656 (95% CI, 0.592 to 0.720;PConclusions—Hyperglycemia ≥155 mg/dL at any time within the first 48 hours from stroke onset, and not only the isolated value of admission glycemia, is associated with poor outcome independently of stroke severity, infarct volume, diabetes, or age.

Although in clinical practice no distinction is usually made in the prevention and management of strokes according to the sex of the patient, some studies suggest the existence of significant clinical differences in the strokes suffered by females.The purpose of our study was to confirm and characterize these differences in patients admitted to hospitals in our community; to do so, we performed an analysis of the stroke or little stroke patients included in the Spanish Neurology Society's Stroke Database (BADISEN), from 1996 to 2001, belonging to eight Spanish hospitals. We analyzed the social aspects, risk factors, clinical features, diagnostic data, situation and referral on discharge of 4,248 female patients (39%). A univariate and, later, a multivariate analysis were performed using logistic regression of the variables that showed significant differences (p0.2).The findings from our study confirm a number of differences between male and female stroke victims. Strokes occur later in females (71 years old compared with 69 in males), when the patient lives alone. The following also occur more frequently in these patients than in males: arterial hypertension (62.8 versus 51.9%, p0.0001), cardiac insufficiency (8.0 as opposed to 4.5%, p0.0001) and atrial fibrillation (21.4 versus 11.3%, p0.0001) as risk factors; cardioembolic causation (22.4 against 15.4%, p0.0001) in anterior circulation (44.0 compared to 36.1%, p0.0001); severity is increased (6.8 on the Canadian scale versus 7.5%, p0.0001); more medical complications (40.5 compared to 33.7%, p0.0001), more serious sequelae (64.2 on the Barthel index compared to 72.9%, p0.0001) and a higher institutionalization rate, among other distinguishing facts.Such differences must be taken into account in the prevention and management of strokes in females.

Stroke is the second most common cause of death and dementia and the number one cause of serious disability in adults in developed countries. After the stroke there remains a maximum vascular risk of recurrence (stroke, heart attack or vascular death). The known vascular risk factors (RF) could only explain 50% of vascular events. A better knowledge of atherogenesis, of the mechanisms that cause instability in the atheroma plaque and of new vascular RF gives rise to new preventive therapeutic approaches. This knowledge is the result of new clinical trials, such as the use of ACE inhibitors, statins, vitamins related with homocysteine, and the use of antihypertensive drugs to prevent cognitive deterioration or dementia, which add to those that have already been conducted.

The appearance of transient ischemic attacks (TIA) is an important sign of vascular risk. The maximum time the deficit lasts has been set arbitrarily at 24 hours. It is assumed that TIA does not entail permanent vascular lesions.A retrospective review of the clinical records of patients diagnosed as suffering from TIA in our centre between 1996 and 1997. Analysis of associated risk factors (RF), duration and findings in neuroimaging.The clinical records of 173 patients (106 males) were examined. The RF identified were similar to those described for ischemic strokes. 45.6% of patients with a history of vascular pathologies received no preventative treatment. 58% of the TIA were resolved within the first 30 minutes and 71% within the first hour. Cranial CT was normal in 69%, showed old lesions in 26% and lesions that were compatible with the clinical signs of TIA in 5% (in the latter case the duration of the episodes was greater).TIA shares the same RF and aetiopathogenic mechanisms as ischemic stroke and should, therefore, be considered as such. There is a need to revise the concept of TIA paying special attention to the findings of neuroimaging or to establish duration limits that are better matched to the practical reality. TIA maintains a practical interest since it provides a simple method of identifying patients with a high vascular risk.