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1.
J Neurol Sci ; 457: 122905, 2024 Feb 15.
Artigo em Inglês | MEDLINE | ID: mdl-38295534

RESUMO

BACKGROUND: Fabry disease (FD) is a treatable X-linked lysosomal storage disorder caused by GLA gene variants leading to alpha-galactosidase A deficiency. FD is a rare cause of stroke, and it is still controversial whether in stroke patients FD should be searched from the beginning or at the end of the diagnostic workup (in cryptogenic strokes). METHODS: Fabry-Stroke Italian Registry is a prospective, multicentric screening involving 33 stroke units. FD was sought by measuring α-galactosidase A activity (males) and by genetic tests (males with reduced enzyme activity and females) in patients aged 18-60 years hospitalized for TIA, ischemic stroke, or intracerebral hemorrhage. We diagnosed FD in patients with 1) already known pathogenic GLA variants; 2) novel GLA variants if additional clinical, laboratory, or family-derived criteria were present. RESULTS: Out of 1906 patients, we found a GLA variant in 15 (0.79%; 95%CI 0.44-1.29) with a certain FD diagnosis in 3 (0.16%; 95%CI 0.03-0.46) patients, none of whom had hemorrhage. We identified 1 novel pathogenic GLA variant. Ischemic stroke etiologies in carriers of GLA variants were: cardioaortic embolism (33%), small artery occlusion (27%), other causes (20%), and undetermined (20%). Mild severity, recurrence, previous TIA, acroparesthesias, hearing loss, and small artery occlusion were predictors of GLA variant. CONCLUSION: In this large multicenter cohort the frequency of FD and GLA variants was consistent with previous reports. Limiting the screening for GLA variants to patients with cryptogenic stroke may miss up to 80% of diagnoses. Some easily recognizable clinical features could help select patients for FD screening.


Assuntos
Doença de Fabry , Ataque Isquêmico Transitório , AVC Isquêmico , alfa-Galactosidase , Feminino , Humanos , Masculino , alfa-Galactosidase/genética , Doença de Fabry/diagnóstico , Doença de Fabry/epidemiologia , Doença de Fabry/genética , Ataque Isquêmico Transitório/diagnóstico , Ataque Isquêmico Transitório/epidemiologia , AVC Isquêmico/diagnóstico , AVC Isquêmico/epidemiologia , AVC Isquêmico/genética , Itália/epidemiologia , Mutação , Prevalência , Estudos Prospectivos , Adolescente , Adulto Jovem , Adulto , Pessoa de Meia-Idade
2.
J Neurol Sci ; 453: 120778, 2023 Oct 15.
Artigo em Inglês | MEDLINE | ID: mdl-37669577

RESUMO

PURPOSE: To identify new factors associated with hemorrhagic transformation (HT) despite early recanalization in patients with acute ischemic stroke treated with mechanical thrombectomy. METHODS: We retrospectively included patients with known onset of large vessel occlusion treated with mechanical thrombectomy +/- intravenous thrombolysis. Non-contrast CT was performed at 24 +/- 12 h from endovascular procedure. We collected data on patient characteristics, risk factors, radiological and treatment features, stroke severity on admission and discharge, carotid intima-media thickness (CIMT), Neutrophils-to-Lymphocytes ratio (NLR), white matter hyperintensities measured according to the Fazekas score on FLAIR MRI data. The main outcome measures were the incidence of HT and factors associated with it. Secondary outcome measures were symptomatic intracerebral hemorrhage and parenchymal hematoma. RESULTS: Of 874 patients, 472 met the inclusion criteria, 211 (44.7%) had HT. Factors significantly associated with increased risk of HT included onset-to-recanalization time, CIMT (normal/mild), ASPECT-MRI < 6, and a higher NLR. We found that beyond 7.67 h from onset-to-recanalization, the risk of HT increases and exceeds 50%. ASPECT-MRI, NLR, and CIMT independently predict HT despite early recanalization. CONCLUSIONS: We identified novel factors associated with HT in patients with acute ischemic stroke of known onset treated with mechanical thrombectomy. We found that at 7.67 h from onset to recanalization, the risk of HT is >50%, and we identified factors responsible for HT despite early recanalization.

3.
Neurol Sci ; 44(10): 3577-3585, 2023 Oct.
Artigo em Inglês | MEDLINE | ID: mdl-37199875

RESUMO

BACKGROUND: Heart failure (HF) is the second most important cardiac risk factor for stroke after atrial fibrillation (AF). Few data are available on mechanical thrombectomy (MT) in acute ischemic stroke (AIS) patients with HF. METHODS: The source of data is the multicentre Italian Registry of Endovascular Treatment in Acute Stroke (IRETAS). All AIS patients ≥ 18 years receiving MT were categorised in two groups: HF and no-HF. Baseline clinical and neuroradiological findings on admission were analysed. RESULTS: Of 8924 patients, 642 (7.2%) had HF. Compared to the no-HF group, HF patients had higher prevalence of cardiovascular risk factors. Rate of complete recanalisation (TICI 2b-3) was 76.9% in HF vs 78.1% in no-HF group (p = 0.481). Rate of symptomatic intracerebral haemorrhage at 24-h non-contrast computed tomography (NCCT) was 7.6% in HF vs 8.3% in no-HF patients (p = 0.520). At 3 months, 36.4% of HF patients and 48.2% of no-HF patients (p < 0.001) had mRS 0-2, and mortality was, respectively, 30.7% and 18.5% (p < 0.001). In multivariate logistic regression, HF was independently associated with mortality at 3 months (OR 1.53, 1.24-1.88 95% CI, p < 0.001). In multivariate ordinal regression, HF patients had a probability of transitioning to a higher mRS level of 1.23 (1.05-1.44 95% CI, p = 0.012). The propensity score analysis of two groups matched for age, sex, and NIHSS at admission yielded the same results. CONCLUSION: MT is safe and effective in HF patients with AIS. Patients with HF and AIS suffered from higher 3-month mortality and unfavourable outcome regardless of acute treatments.


Assuntos
Isquemia Encefálica , Procedimentos Endovasculares , Insuficiência Cardíaca , AVC Isquêmico , Acidente Vascular Cerebral , Humanos , AVC Isquêmico/etiologia , Trombectomia/efeitos adversos , Resultado do Tratamento , Acidente Vascular Cerebral/epidemiologia , Acidente Vascular Cerebral/cirurgia , Insuficiência Cardíaca/complicações , Sistema de Registros , Estudos Retrospectivos , Isquemia Encefálica/complicações , Isquemia Encefálica/diagnóstico por imagem , Isquemia Encefálica/epidemiologia , Procedimentos Endovasculares/efeitos adversos
4.
Neurol Sci ; 44(7): 2413-2419, 2023 Jul.
Artigo em Inglês | MEDLINE | ID: mdl-36800102

RESUMO

PURPOSE: Occlusion of artery of Percheron (AOP), a rare variant of paramedian branches of posterior cerebral artery, results in a characteristic pattern of ischemic lesions in bilateral paramedian thalami with or without midbrain and anterior thalami involvement. AIM: To evaluate the prevalence, the clinical, and the imaging features of AOP infarction in a single comprehensive stroke center experience. METHODS: We retrospectively search in our stroke center database, patients with ischemic lesions in the AOP distribution. We collected clinical features and time between hospital admission and diagnosis. Imaging findings were categorized following a pre-selected classification. RESULTS: Of 2830 ischemic stroke admitted in our center, we identified 15 patients with AOP infarction (0.53%). Clinical manifestations were variable, but oculomotor disturbances, particularly vertical gaze palsy, were the most observed, followed by consciousness impairment, varying from drowsiness to coma. The most frequent imaging pattern was bilateral paramedian thalamic infarction with midbrain infarction, and the V-sign was recognized in 6 cases from this group. In 8 patients a fetal origin of the PCA was observed. The average time from first hospital admission to diagnosis was 28.09 h. CONCLUSIONS: The prevalence of AOP infarction in our center was 0.53%. Diagnosis of AOP infarction can be challenging and should be suspected in case of sudden altered consciousness.


Assuntos
Infarto Cerebral , Acidente Vascular Cerebral , Humanos , Estudos Retrospectivos , Prevalência , Infarto Cerebral/diagnóstico por imagem , Infarto Cerebral/epidemiologia , Acidente Vascular Cerebral/patologia , Artérias , Tálamo/patologia
5.
J Electrocardiol ; 74: 46-53, 2022.
Artigo em Inglês | MEDLINE | ID: mdl-35964522

RESUMO

INTRODUCTION: Atrial fibrillation (AF) is the main cardiac cause of stroke, but it frequently remains undetected. In patients with cryptogenic stroke an Holter electrocardiogram (ECG) monitoring for AF is recommended. OBJECTIVE: To evaluate the prognostic role of Non-Conducted Premature Atrial Complexes (ncPACs) recorded on Holter ECG. METHODS: We prospectively enrolled consecutive patients admitted to the Stroke Unit of our hospital with a diagnosis of cryptogenic stroke between December 2018 and January 2020; all patients underwent 24-h Holter ECG monitoring during hospitalization. Two follow-up visits were scheduled, including a 24-h Holter ECG at 3 and 6 months to detect AF. RESULTS: Among 112 patients, 58% were male with an average age of 72.2 ± 12.2 years. At follow-up, AF was diagnosed in 21.4% of the population. The baseline 24-h Holter ECG burden of ncPACs and Premature Atrial Complexes (PACs) was higher in patients with AF detected on follow-up (13.5 vs 2, p = 0.001; 221.5 vs 52; p = 0.01). ROC analysis showed that ncPACs had the best diagnostic accuracy in predicting AF (AUC:0.80; 95% CI 0.68-0.92). Cut-off value of ≥7 for ncPACs burden showed the highest accuracy with sensitivity of 62.5% and specificity 97.7% to predict AF onset at follow-up. Moreover, at multivariate Cox-proportional hazard analysis ncPACs burden ≥7 was a powerful independent predictor of AF onset (HR 12.4; 95% CI 4.8-32.8; p < 0.0001). CONCLUSIONS: NcPACs burden ≥7 represents a new predictor of AF that could guide the screening of this arrhythmia in cryptogenic stroke patients.


Assuntos
Fibrilação Atrial , AVC Isquêmico , Acidente Vascular Cerebral , Humanos , Masculino , Pessoa de Meia-Idade , Idoso , Idoso de 80 Anos ou mais , Feminino , Fibrilação Atrial/complicações , Fibrilação Atrial/diagnóstico , Eletrocardiografia , Acidente Vascular Cerebral/etiologia
6.
Neurol Sci ; 43(11): 6179-6183, 2022 Nov.
Artigo em Inglês | MEDLINE | ID: mdl-35921016

RESUMO

Carotid free-floating thrombus (FFT) is very rarely diagnosed in patients with acute ischemic stroke. It is a real clinical emergency due to the significant risk of death associated with thromboembolic complications. Herein, we present three patients with ischemic stroke caused by carotid FFT after less than 20 days from administration of mRNA vaccine BNT162b1 (Pfizer/BioNTech) for Severe Acute Respiratory Syndrome-CoronaVirus 2 (SARS-CoV-2). To our knowledge, these are the first cases reporting carotid FTT following SARS-CoV-2 vaccination.


Assuntos
COVID-19 , AVC Isquêmico , Trombose , Humanos , Vacinas contra COVID-19/efeitos adversos , AVC Isquêmico/diagnóstico por imagem , AVC Isquêmico/etiologia , Vacina BNT162 , SARS-CoV-2 , Trombose/diagnóstico por imagem , Trombose/etiologia , Vacinas de mRNA
7.
Stroke ; 53(12): 3671-3678, 2022 12.
Artigo em Inglês | MEDLINE | ID: mdl-36039754

RESUMO

BACKGROUND: Symptomatic intracerebral hemorrhage (sICH) and major bleeding can be fatal complications of intravenous thrombolysis (IVT) for acute ischemic stroke. We investigated the impact of early fibrinogen depletion after IVT on major bleeding events. METHODS: This multicenter observational prospective cohort study enrolled 1678 consecutive patients receiving IVT for acute ischemic stroke at 6 Italian centers, undergoing fibrinogen concentration assessment at baseline, 2 hours and 6 hours after IVT. Fibrinogen depletion was defined as a reduction below 200 mg/dL after 2 hours from IVT, or as a reduction below 50% of baseline fibrinogen levels after 2 hours from IVT. Main outcomes were (1) sICH (National Institute of Neurological Disorders and Stroke criteria) and (2) major bleeding defined as fatal bleeding, decrease in the hemoglobin level>2 g/dL/>1 unit transfusion, or bleeding at critical site. Additional outcomes were (1) any ICH, (2) any bleeding, (3) fatal ICH, and (4) sICH according to ECASSII definition. Good functional recovery was defined as modified Rankin Scale score 0 to 2 at 3 months. RESULTS: Overall, 1678 patients were included (mean age 72 years, 46% female). sICH (n=116) and major bleeding (n=297) were associated with lower rate of good functional recovery (P<0.001). Despite similar fibrinogen levels at admission, fibrinogen depletion after 2 hours from IVT was more common in people with sICH, major bleeding and all additional bleeding outcomes. In the backward stepwise multivariable logistic regression model, fibrinogen depletion remained a significant predictor of sICH (OR, 1.55 [95% CI, 1.04-2.32]) and major bleeding (OR, 1.36 [95% CI, 1.03-1.8]). Thirty-one percent of sICH could be attributable to fibrinogen depletion. The association between fibrinogen depletion and worse clinical outcome at 3 months after stroke (P=0.012) was attributable to the higher risk of major bleeding/sICH. CONCLUSIONS: Fibrinogen depletion significantly increases the risk of sICH and major bleeding after IVT for acute ischemic stroke. Fibrinogen depletion represents an independent risk factor for bleeding, and routine assessment could be considered to stratify the risk of ICH. Trials on early fibrinogen repletion are needed to investigate mitigation of bleeding risk.


Assuntos
Transtornos da Coagulação Sanguínea , Isquemia Encefálica , Hemostáticos , AVC Isquêmico , Acidente Vascular Cerebral , Humanos , Feminino , Idoso , Masculino , Ativador de Plasminogênio Tecidual/efeitos adversos , Terapia Trombolítica/efeitos adversos , Fibrinolíticos/efeitos adversos , Fibrinogênio , Estudos Prospectivos , Hemorragia Cerebral/complicações , Transtornos da Coagulação Sanguínea/complicações , Hemostáticos/uso terapêutico , Resultado do Tratamento , Isquemia Encefálica/complicações , Isquemia Encefálica/tratamento farmacológico
10.
Radiol Med ; 127(4): 414-425, 2022 Apr.
Artigo em Inglês | MEDLINE | ID: mdl-35226245

RESUMO

PURPOSE: To assess utility of computed tomography perfusion (CTP) protocols for selection of patients with acute ischemic stroke (AIS) for reperfusive treatments and compare the diagnostic accuracy (ACC) in predicting follow-up infarction, using time-to-maximum (Tmax) maps. METHODS: We retrospectively reviewed consecutive AIS patients evaluated for reperfusive treatments at comprehensive stroke center, employing a multimodal computed tomography. To assess prognostic accuracy of CTP summary maps in predicting final infarct area (FIA) in AIS patients, we assumed the best correlation between non-viable tissue (NVT) and FIA in early and fully recanalized patients and/or in patients with favorable clinical response (FCR). On the other hand, the tissue at risk (TAR) should better correlate with FIA in untreated patients and in treatment failure. RESULTS: We enrolled 158 patients, for which CTP maps with Tmax thresholds of 9.5 s and 16 s, presented sensitivity of 82.5%, specificity of 74.6%, and ACC of 75.9%. In patients selected for perfusion deficit in anterior circulation territory, CTP-Tmax > 16 s has proven relatively reliable to identify NVT in FCR patients, with a tendency to overestimate NVT. Similarly, CTP-Tmax > 9.5 s was reliable for TAR, but it was overestimated comparing to FIA, in patients with unfavorable outcomes. CONCLUSIONS: In our experience, Tmax thresholds have proven sufficiently reliable to identify global hypoperfusion, with tendency to overestimate both NVT and TAR, not yielding satisfactory differentiation between true penumbra and benign oligoemia. In particular, the overestimation of NVT could have serious consequences in not selecting potential candidates for a reperfusion treatment.


Assuntos
Isquemia Encefálica , AVC Isquêmico , Acidente Vascular Cerebral , Humanos , Circulação Cerebrovascular/fisiologia , AVC Isquêmico/diagnóstico por imagem , AVC Isquêmico/terapia , Perfusão , Estudos Retrospectivos , Acidente Vascular Cerebral/diagnóstico por imagem
11.
Neurol Sci ; 43(7): 4335-4348, 2022 Jul.
Artigo em Inglês | MEDLINE | ID: mdl-35146566

RESUMO

INTRODUCTION: The study aimed to identify the main prognostic factors in diabetic patients with ischemic stroke undergoing reperfusion therapies (RT). METHODS: This retrospective study included 170 diabetic patients: 62 treated with intravenous thrombolysis (IVT) alone and 108 with mechanical thrombectomy (MT). Among MT patients, 29 underwent IVT. We collected clinical, laboratory, and radiological data. The outcomes were 3-month functional impairment (measured by modified Rankin scale, mRs), discharge neurological severity (measured by National Institutes of Health Stroke Scale score, NIHSS), 3-month mortality, intracranial hemorrhage (ICH), and symptomatic intracranial hemorrhage (SICH). We performed a general analysis for all RT and sub-group analyses for IVT and MT. RESULTS: A lower mRs was associated with lower glycemia and admission NIHSS (aNIHSS) in all RT and MT; lower aNIHSS and younger age in IVT. Mortality increased with hyperglycemia, aNIHSS, and age in all RT; age and aNIHSS in IVT; hyperglycemia and systolic pressure in MT. A lower discharge NIHSS was related with lower aNIHSS, thrombolysis, and no thrombectomy in all RT; lower aNIHSS in IVT; lower aNIHSS and thrombolysis in MT. ICH was associated with elevated aNIHSS, older age, and lower platelets in all RT; lower platelets and older age in IVT; higher aNIHSS in MT. SICH depended on longer thrombectomy duration in all RT; no metformin use in IVT; higher weight in MT. CONCLUSION: The study shed light on diabetic patients and stroke RT highlighting the protective effect of metformin in IVT and the role of glycemia, weight, and combined treatment in MT.


Assuntos
Isquemia Encefálica , Diabetes Mellitus , Hiperglicemia , AVC Isquêmico , Trombólise Mecânica , Acidente Vascular Cerebral , Isquemia Encefálica/tratamento farmacológico , Isquemia Encefálica/terapia , Diabetes Mellitus/tratamento farmacológico , Diabetes Mellitus/epidemiologia , Fibrinolíticos/uso terapêutico , Humanos , Hiperglicemia/complicações , Hemorragias Intracranianas/etiologia , Trombólise Mecânica/efeitos adversos , Reperfusão , Estudos Retrospectivos , Acidente Vascular Cerebral/complicações , Trombectomia/efeitos adversos , Terapia Trombolítica/efeitos adversos , Resultado do Tratamento
12.
J Neurol Sci ; 434: 120147, 2022 Mar 15.
Artigo em Inglês | MEDLINE | ID: mdl-35033745

RESUMO

Data regarding repeated reperfusion therapy (rRT) in acute ischemic stroke (AIS), including intravenous thrombolysis and endovascular treatment (EVT), are quite poor. To date, there are only few case reports and five larger studies on repeated EVT. We aimed to report our single-center experience and describe different clinical scenarios of recurrent AIS with emergent large vessel occlusion (LVO), for which the decision-making process could be challenging in the emergency setting. We retrospectively reviewed 765 consecutive AIS patients with LVO, who underwent reperfusion procedures at our comprehensive stroke center, from 2014 to 2020, and identified rRT patients. We identified and reviewed the medical records of eight patients (1.05%), who repeated reperfusive treatment for recurrent stroke within 30 days (early arterial reocclusion, EAR) and after 30 days (late arterial reocclusion, LAR). We assigned collected data to three clinical scenarios, each divided into EAR and LAR cases. All patients had recurrent emergent LVO in the same vessel territory previously affected, both in EAR and LAR patients. A good clinical outcome has been achieved in EAR patients (modified Rankin Score ≤ 2). Artery-to-artery embolic mechanism was more common in the EAR group, while LAR was more frequently associated with cardioembolic source. RRT appears to be an effective treatment option for recurrent LVO, and it should not be withheld in carefully selected patients. EVT should be considered, including aspiration-only and stenting procedures in patients with AIS and recurrent LVO after previous reperfusive treatments, even after a very short time.


Assuntos
Isquemia Encefálica , Procedimentos Endovasculares , AVC Isquêmico , Acidente Vascular Cerebral , Isquemia Encefálica/complicações , Isquemia Encefálica/terapia , Procedimentos Endovasculares/métodos , Humanos , Reperfusão , Estudos Retrospectivos , Acidente Vascular Cerebral/etiologia , Acidente Vascular Cerebral/terapia , Trombectomia , Resultado do Tratamento
13.
J Stroke Cerebrovasc Dis ; 31(2): 106230, 2022 Feb.
Artigo em Inglês | MEDLINE | ID: mdl-34864609

RESUMO

PURPOSE: Pulmonary opacities are described in many chest radiograph reports in stroke patients and are often asymptomatic. The aim of this study is to investigate the clinical features associated with asymptomatic pulmonary opacities (APO) and evaluate APO prognostic value in ischemic stroke. METHODS: We prospectively analyzed patients with acute ischemic stroke without pneumonia symptoms referred to our stroke center. All patients underwent a chest x-ray within 48 hours after admission. We divided patients with APO (defined as asymptomatic area of increased pulmonary attenuation) and patients without APO. Firstly, we compared clinical, laboratory, and echocardiographic parameters between groups; secondly, APO were evaluated as a possible predictor of the neurological severity at discharge and functional outcome at 90 days. RESULTS: We included 162 patients, 78 of whom had APO. On univariate analysis, we observed a significant difference between patients with APO and patients without APO in terms of neutrophils (73,56±10,10 vs 69,72±12,29; p=0,031), atrial fibrillation (AF, paroxysmal 27,4% vs 25,6%; permanent 19% vs 2,6%; p<0,002), cardioembolic etiology (37,2% vs 22,7%, p <0,033), thrombectomy (58,3% vs 42,9%, p <0,05), dysphagia/vomit (34,5% vs 14,10%, p<0,005), admission NIHSS (14,20±5,98 vs 10,29±5,82, p=0,001), discharge NIHSS (8,68±6,73 vs 5,64±6,20; p=0,003), and 90 days mRS (3,47±2,12 vs 2,31±1,93; p=0,001). On multivariate analysis, APO were significantly associated with admission NIHSS and AF. APO were a predictor of outcome on univariate analysis, but not on multivariate. CONCLUSION: APO in acute ischemic stroke are associated with AF. APO were not a predictor of neurological and functional outcome.


Assuntos
AVC Isquêmico , Pneumopatias , Fibrilação Atrial/epidemiologia , Hospitalização , Humanos , AVC Isquêmico/epidemiologia , AVC Isquêmico/terapia , Pneumopatias/epidemiologia , Estudos Prospectivos
14.
Heliyon ; 7(6): e07369, 2021 Jun.
Artigo em Inglês | MEDLINE | ID: mdl-34222700

RESUMO

Pontine warning syndrome (PWS) is a condition characterized by crescendo transient ischemic attacks due to pontine ischemia. The reported case described a 72-year-old woman who presented repetitive sudden episodes of double vision, impaired balance, slurred speech and right-sided weakness. Neurological deficits lasted a few minutes-hours and disappeared during the first seven days after onset. On the 1st day, MRI revealed acute left paramedian pontine infarction with focal swelling. Supra-aortic vessel imagining revealed bilateral internal carotid stenosis of 50%; hypoplasia of the left vertebral artery. On the 7th day, MRI showed a tissue swelling reduction, and from that day, she had no symptoms. These clinical and radiological features were suggestive of PWS. Our patient presented a particular vascular pattern that could favour symptoms fluctuation. We performed a close MRI follow up and it allowed us to observe a clinical stabilization in association with edema reduction.

15.
J Neurol ; 268(10): 3799-3807, 2021 Oct.
Artigo em Inglês | MEDLINE | ID: mdl-33786665

RESUMO

PURPOSE: We aim to provide prevalence and pattern of anatomical variants of circle of Willis in over one thousand ischemic stroke patients compared to an age- and sex-matched control group, and to determine their role in the severity and in-hospital prognosis. METHODS: Two groups of neuroradiologists evaluated all vascular images of ischemic stroke patients and controls to identify anatomical variants using a preexisted classification. We collected data concerning patient characteristics, stroke severity on admission and discharge, in-hospital mortality, hemorrhagic transformation, acute treatment performed, and etiology. RESULTS: We included 1131 patients with acute ischemic stroke and 562 controls. Among stroke patients, 702 (62.1%) had one or more vascular variants, compared to 308 (54.8%) of the control group (p < 0.01), 165/702 (23.5%) had an anterior circulation variant only, 384/702 (54.7%) had a posterior circulation variant only, and 153/702 (21.8%) patients had variants in both anterior and posterior circulation. Patients with variants were older (69.7 ± 13.9 years vs 72.0 ± 12.9 years; p = 0.039). The most prevalent variant was the agenesis/hypoplasia of the ACA (201/1131; 17.8%) followed by the unilateral fetal type of the PCA (137/1131; 12.11%). CONCLUSIONS: We provided the prevalence and the pattern of the brain vascular variants of the circle of Willis in a cohort of patients with ischemic stroke. The prevalence of variants was higher in stroke patients compared to controls. Patients with variants were older but had no differences in sex, neurological admission severity, hemorrhagic transformation, etiology, and in-hospital outcome compared to patients with a typical circle of Willis.


Assuntos
Isquemia Encefálica , AVC Isquêmico , Acidente Vascular Cerebral , Isquemia Encefálica/complicações , Isquemia Encefálica/epidemiologia , Círculo Arterial do Cérebro/diagnóstico por imagem , Humanos , Prevalência , Acidente Vascular Cerebral/diagnóstico por imagem , Acidente Vascular Cerebral/epidemiologia
16.
Cerebrovasc Dis ; 49(1): 10-18, 2020.
Artigo em Inglês | MEDLINE | ID: mdl-32023607

RESUMO

The symptoms related to insular ischemia have been the object of several studies in patients affected by stroke, although they are often accompanied by other ischemic alteration of adjacent brain structures supplied by the middle cerebral artery (MCA). The insula is vulnerable because of an ischemia due to thromboembolic vascular occlusion of the M1 MCA segment and the 2 main MCA branches (M2), mainly when they abruptly arise from the principal stem at a right angle. This topographical and anatomical peculiarity could enable an embolic formation, especially due to atrial fibrillation (AF), to occlude the transition pathway between M1 and M2, while the proximal origin of vascular supply protects the insula from ischemia due to hemodynamic factors. The aim of the study is to characterize the clinical aspects of acute ischemic strokes as a first event in the insular territory with specific attention to atypical manifestation. We have considered 233 patients with a first event stroke involving the insular territory and 13 cases of isolated insular stroke (IIS), from the stroke registry of the Policlinico "G.Martino", University of Messina, between the February 10, 2014 and the February 7, 2018. IIS patients showed CT/MRI lesions restricted to the insular region. Exclusion criteria were coexisting neurological diseases, structural brain lesions, extension to the subinsular area >50% of the total infarct volume. We identified 13 IIS patients (mean age 74 years), with an isolated symptom or a combination of typical and atypical aspects. Furthermore, we observed high frequency detection of cardiac disturbances. To our knowledge, just a few previous studies have described IIS; their incidence is still not well defined. IIS manifested with a combination of deficits including motor, somatosensory, speaking, coordination, autonomic and cognitive disturbances. After an ischemic stroke, AF manifestation could follow briefly the major event and its duration could be very short, as an autonomic dysfunction due to an insular infarction. This clinical condition requires a continuous cardiac monitoring for this dangerous occurrence.


Assuntos
Córtex Cerebral/irrigação sanguínea , Circulação Cerebrovascular , Acidente Vascular Cerebral/complicações , Idoso , Idoso de 80 Anos ou mais , Afasia/etiologia , Afasia/fisiopatologia , Afasia/psicologia , Ataxia/etiologia , Ataxia/fisiopatologia , Ataxia/psicologia , Fibrilação Atrial/etiologia , Fibrilação Atrial/fisiopatologia , Sistema Nervoso Autônomo/fisiopatologia , Córtex Cerebral/diagnóstico por imagem , Córtex Cerebral/fisiopatologia , Transtornos Cognitivos/etiologia , Transtornos Cognitivos/fisiopatologia , Transtornos Cognitivos/psicologia , Avaliação da Deficiência , Feminino , Humanos , Itália , Imageamento por Ressonância Magnética , Masculino , Pessoa de Meia-Idade , Atividade Motora , Prognóstico , Sistema de Registros , Distúrbios Somatossensoriais/etiologia , Distúrbios Somatossensoriais/fisiopatologia , Distúrbios Somatossensoriais/psicologia , Acidente Vascular Cerebral/diagnóstico por imagem , Acidente Vascular Cerebral/fisiopatologia , Acidente Vascular Cerebral/terapia , Tomografia Computadorizada por Raios X
17.
Clin Neurol Neurosurg ; 191: 105680, 2020 04.
Artigo em Inglês | MEDLINE | ID: mdl-31981998

RESUMO

We report the case of a 22-year-old man with an history of headaches, seizures, cognitive impairment associated with recurrent intracranial hemorrhage (ICH), acute ischemic stroke (AIS), worsened over the last eighteen months for a new onset of uveitis and cerebral venous sinus thrombosis (CVST). After excluding common causes of lobar ICH, and some rare ones according to the diagnostic protocol proposed by Beuker et al, in the suspicion of Primary Angiitis of the Central Nervous System (PACNS), the gradual development of a low-grade fever, a cutaneous rash, and a papulopustular manifestation on lower back after rachicentesis (pathergy phenomenon), allowed us to make a diagnosis of Neuro-Behçet's Syndrome (NBS) without oral/genital aphthous ulcerations, according to the International Study Group for Behçet's Disease classification criteria for BD (ICBD).


Assuntos
Síndrome de Behçet/diagnóstico , Hemorragias Intracranianas/diagnóstico por imagem , Trombose dos Seios Intracranianos/diagnóstico por imagem , Vasculite do Sistema Nervoso Central/diagnóstico , Síndrome de Behçet/fisiopatologia , Angiografia Cerebral , Disfunção Cognitiva/fisiopatologia , Cefaleia/fisiopatologia , Humanos , Hemorragias Intracranianas/fisiopatologia , Angiografia por Ressonância Magnética , Masculino , Recidiva , Convulsões/fisiopatologia , Trombose dos Seios Intracranianos/fisiopatologia , Vasculite do Sistema Nervoso Central/fisiopatologia , Adulto Jovem
18.
Clin Neurol Neurosurg ; 188: 105612, 2020 01.
Artigo em Inglês | MEDLINE | ID: mdl-31810029

RESUMO

The term hemiballism-hemichorea refers to a movement disorder characterized by involuntary movements, often violent, described as uncontrollable jerking, flinging, flailing or kicking, involving proximal muscles of a limb and it is often associated with lesions in the subthalamic nucleus. In this report, we described three cases of hemiballism-hemichorea as the first manifestation of acute ischemic stroke with lesion in the frontoparietal region on brain MRI and no involvement of the subthalamic nucleus. One patient was treated with thrombolysis and recovered within one hour. The other patients recovered within 48 h from symptoms onset. The impairment of the recently described "hyperdirect way", in which the cortical signal reach directly the subthalamic nucleus, may underlie the symptoms. We support, with a clinical point of view, the role of the frontoparietal region in the genesis of the hemiballism-hemichorea. An acute onset of this symptom should lead to think to an acute stroke.


Assuntos
Discinesias/fisiopatologia , Lobo Frontal/irrigação sanguínea , AVC Isquêmico/fisiopatologia , Lobo Parietal/irrigação sanguínea , Idoso , Estenose das Carótidas/diagnóstico por imagem , Estenose das Carótidas/cirurgia , Angiografia Cerebral , Imagem de Difusão por Ressonância Magnética , Feminino , Lobo Frontal/diagnóstico por imagem , Humanos , AVC Isquêmico/diagnóstico por imagem , AVC Isquêmico/tratamento farmacológico , Angiografia por Ressonância Magnética , Imageamento por Ressonância Magnética , Masculino , Pessoa de Meia-Idade , Lobo Parietal/diagnóstico por imagem , Núcleo Subtalâmico , Terapia Trombolítica
19.
Cerebrovasc Dis Extra ; 9(2): 90-97, 2019.
Artigo em Inglês | MEDLINE | ID: mdl-31466054

RESUMO

BACKGROUND: Acute ischemic stroke (AIS) due to basilar artery occlusion (BAO) represents 1-4% of all ischemic strokes. BAO results in strokes associated with a high risk of a poor functional outcome and, in 86-95% of the untreated cases, it results in death because of the vital cerebral structures involved. Diagnosis can be delayed because of the variability in presenting symptoms, and acute treatment is often attempted even beyond 6 h from symptoms onset because of the high risk of a fatal prognosis. OBJECTIVE: In this observational study, we retrospectively analyzed patients with AIS due to BAO referred to the stroke center of the University Hospital of Messina. We aimed to assess prognostic factors and to evaluate the association between clinical outcome and posterior circulation Alberta Stroke Program Early CT Score (pc-ASPECTS) and collateral status. METHOD: BAO was confirmed by cerebral computed tomography (CT) angiography or cerebral angiography. All patients underwent CT scan and magnetic resonance imaging (MRI). We assessed the pc-ASPECTS on diffusion-weighted imaging (DWI) MR images and the Posterior Circulation Collateral Score (PC-CS) for every patient. Functional outcome was assessed at 3 months using the modified Rankin Scale (mRS). RESULTS: The study population consisted of 27 patients; 16 males and 11 females. The mean age was 66 (±14) years. We observed a favorable outcome (mRS 0-3) in 40.7% of cases, 25.9% reached mRS 0-2, and 29.6% had a poor clinical outcome (mRS 4-5). Patient survival was 70.4%, whereas 8 patients died (29.6%). In 7 patients, pc-ASPECTS was ≥7. According to the PC-CS, 33.3% had moderate collaterals and 63.0% had good collateral status prior to receiving the treatment. Favorable outcome was significantly associated with age, NIHSS score at admission, pc-ASPECTS, hypercholesterolemia, and female sex but not with the other risk factors. CONCLUSIONS: In our study, we found that younger age, low NIHSS score at admission, and high pc-ASPECTS, but not onset to treatment time, are associated with a favorable clinical outcome. Transferred patients did not have a significantly poorer outcome. These findings confirm that acute stroke treatment improves clinical outcome in BAO patients, in spite of a delayed diagnosis and an extended therapeutic window, considering lesion volume and localization in DWI MRI.


Assuntos
Acidente Vascular Cerebral/terapia , Insuficiência Vertebrobasilar/terapia , Fatores Etários , Idoso , Idoso de 80 Anos ou mais , Circulação Cerebrovascular , Circulação Colateral , Avaliação da Deficiência , Feminino , Nível de Saúde , Humanos , Itália , Masculino , Pessoa de Meia-Idade , Recuperação de Função Fisiológica , Estudos Retrospectivos , Fatores de Risco , Acidente Vascular Cerebral/diagnóstico , Acidente Vascular Cerebral/mortalidade , Acidente Vascular Cerebral/fisiopatologia , Fatores de Tempo , Tempo para o Tratamento , Resultado do Tratamento , Insuficiência Vertebrobasilar/diagnóstico , Insuficiência Vertebrobasilar/mortalidade , Insuficiência Vertebrobasilar/fisiopatologia
20.
Public Health Nutr ; 22(9): 1590-1596, 2019 Jun.
Artigo em Inglês | MEDLINE | ID: mdl-30585144

RESUMO

OBJECTIVE: We conducted a study to describe food profile, health status and stroke risk factors in the population of the Aeolian Islands. DESIGN: Self-administrated questionnaires regarding eating habits, health status and stroke risk factors were obtained from a sample of the general Aeolian population. We analysed the difference from common healthy eating habits indicated by the Italian Institute of Nutrition. SETTING: Current evidence finds the Mediterranean diet is a protective factor for cardio- and cerebrovascular diseases. The Aeolian Islands are an interesting study setting because of their peculiarity in the epidemiology of cerebrovascular and neurodegenerative diseases. PARTICIPANTS: Individuals (n 586; age range 15-93 years; mean 52 (sd 18) years) living in the Aeolian Islands. RESULTS: We found low fish consumption in 13·3% and vitamin intake deficiency in 5·8% of participants. A marked excess of saturated fats was observed in 71·0% of participants. Sodium excess was reported almost in half of participants (49·0%). Eating habits were characterized by high consumption of fruits and vegetables, consistent use of olive oil and scanty use of cured meat. Health status as evaluated by the General Health Questionnaire was characterized by 'normal distress' level in the majority of participants. CONCLUSIONS: Study findings show the eating habits and health status of the Aeolian people in an interesting setting of low incidence of cerebrovascular disease. This nutrition regimen has been proved to be protective against cerebrovascular disease. Nutrition is likely to contribute to the low incidence of stroke in this population.

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