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1.
Neurol Sci ; 45(8): 3861-3867, 2024 Aug.
Artículo en Inglés | MEDLINE | ID: mdl-38467952

RESUMEN

BACKGROUND: Transient ischemic attack (TIA) is defined as a transient episode of neurologic dysfunction, without acute infarction or tissue injury lasting less than 24 h. Previous data suggest TIA precedes 15% of ischemic strokes, with a higher risk in the first week. Current practice guidelines advise evaluation through rapid neurological visit or admission to hospital. We provide data on TIA incidence in Trieste, and we compare three different types of assessment: day hospital (DH), stroke unit (SU), and emergency department/outpatients (ED). METHODS: This is a 5-year retrospective study of transient cerebrovascular events admitted in the University Hospital of Trieste (230.623 inhabitants), between 2016 and 2020. We calculated TIA prevalence in Trieste district's general population. Our primary endpoint is ischemic recurrences within 90 days, and we evaluate the possible association between different types of management. RESULTS: TIA incidence rate was 0.54/1000 inhabitants. In the multivariate analysis remained significantly associated with primary endpoint: ABCD2 (OR 1.625, CI 95% 1.114-2.369, p = 0.012) and DH evaluation (OR 0.260, CI 95% 0.082-0.819, p = 0.021). CONCLUSIONS: Incidence of TIA in Trieste district is in line with previous data. We demonstrate the crucial role of DH evaluation over the outpatient/ED in reducing overall mortality and recurrence rate. Prompt recognition of patients at high risk for cerebrovascular events and specialist follow-up may reduce the incidence of major vascular events and death.


Asunto(s)
Ataque Isquémico Transitorio , Humanos , Ataque Isquémico Transitorio/epidemiología , Ataque Isquémico Transitorio/terapia , Estudios Retrospectivos , Masculino , Femenino , Anciano , Persona de Mediana Edad , Incidencia , Italia/epidemiología , Anciano de 80 o más Años , Servicio de Urgencia en Hospital/estadística & datos numéricos , Recurrencia , Hospitalización/estadística & datos numéricos
2.
Neurol Sci ; 45(7): 3245-3253, 2024 Jul.
Artículo en Inglés | MEDLINE | ID: mdl-38285327

RESUMEN

BACKGROUND AND OBJECTIVES: ASPECTs is a widely used marker to identify early stroke signs on non-enhanced computed tomography (NECT), yet it presents interindividual variability and it may be hard to use for non-experts. We introduce an algorithm capable of automatically estimating the NECT volumetric extension of early acute ischemic changes in the 3D space. We compared the power of this marker with ASPECTs evaluated by experienced practitioner in predicting the clinical outcome. METHODS: We analyzed and processed neuroimaging data of 153 patients admitted with acute ischemic stroke. All patients underwent a NECT at admission and on follow-up. The developed algorithm identifies the early ischemic hypodense region based on an automatic comparison of the gray level in the images of the two hemispheres, assumed to be an approximate mirror image of each other in healthy patients. RESULTS: In the two standard axial slices used to estimate the ASPECTs, the regions identified by the algorithm overlap significantly with those identified by experienced practitioners. However, in many patients, the regions identified automatically extend significantly to other slices. In these cases, the volume marker provides supplementary and independent information. Indeed, the clinical outcome of patients with volume marker = 0 can be distinguished with higher statistical confidence than the outcome of patients with ASPECTs = 10. CONCLUSION: The volumetric extension and the location of acute ischemic region in the 3D-space, automatically identified by our algorithm, provide data that are mostly in agreement with the ASPECTs value estimated by expert practitioners, and in some cases complementary and independent.


Asunto(s)
Algoritmos , Accidente Cerebrovascular Isquémico , Tomografía Computarizada por Rayos X , Humanos , Masculino , Tomografía Computarizada por Rayos X/normas , Tomografía Computarizada por Rayos X/métodos , Femenino , Anciano , Accidente Cerebrovascular Isquémico/diagnóstico por imagen , Persona de Mediana Edad , Isquemia Encefálica/diagnóstico por imagen , Anciano de 80 o más Años , Encéfalo/diagnóstico por imagen , Encéfalo/patología , Accidente Cerebrovascular/diagnóstico por imagen
3.
Neurol Sci ; 2024 May 21.
Artículo en Inglés | MEDLINE | ID: mdl-38772977

RESUMEN

OBJECTIVES: Wake-up Stroke (WUS) accounts for about 25% of all ischemic strokes. Differences according to sex in the WUS subgroup has been poorly investigated so far, so we aimed to assess these differences by differentiating the enrolled population based on treatment administered. MATERIALS & METHODS: We retrospectively analysed clinical and imaging data of WUS patients admitted to our hospital between November 2013 and December 2018 dividing them in two groups: rTPA-treated and non-rTPA treated group. To point out outcome differences we evaluated: NIHSS at 7 days or at discharge, mRS at discharge and ΔNIHSS. RESULTS: We enrolled 149 WUS patients, 74 rTPA treated and 75 non-rTPA treated. Among rTPA treated patients, time from last known well (LKW) to Emergency Department (ED) admission was longer in females than males (610 vs 454 min), while females had a higher ΔNIHSS than males (5 vs 3). Finally, among non-rTPA treated patients, females were older than males (85 vs 79 years), had a higher pre-admission mRS (although very low in both cases), had a longer length of stay (17 vs 13 days) and shown a higher NIHSS at discharge (4 vs 2) compared to males. CONCLUSIONS: Females not receiving thrombolytic treatment had worse functional outcome than males, showing a higher NIHSS at discharge but, in contrast, when treated with rTPA they showed better neurological recovery as measured by a greater ΔNIHSS. We emphasize the importance of a prompt recognition of WUS in females since they seem to benefit more from rTPA treatment.

4.
Dysphagia ; 38(1): 65-75, 2023 02.
Artículo en Inglés | MEDLINE | ID: mdl-35556172

RESUMEN

Swallowing disorders are common in neurological diseases, with dysphagia representing one of the most prevalent complications that may cause poor quality of life, reduce independence, and increase mortality. Rapid identification of dysphagia is necessary to reduce the risk of penetration and aspiration, and to early start rehabilitation protocols. Among the methods that can be used to evaluate dysphagia and its components, ultrasound imaging has been suggested to support the evaluation of dysphagia by providing measures of both static and dynamic anatomical components. The aim of this systematic review is to evaluate the usefulness of ultrasonography in neurogenic dysphagia according to current literature. From 2000 to 2020, 633 studies with the appropriate search terms for ultrasound and dysphagia were identified. After screening them, 10 studies were included in the qualitative analysis. Patients with the following neurologic conditions were studied with ultrasonography for dysphagia: Parkinson's disease, muscle dystrophy, amyotrophic lateral sclerosis, and stroke. The main outcomes of ultrasonography were swallowing muscles thickness (e.g., tongue), and dynamic measures such as hyoid displacement. The different protocols used in the studies, as well as their outcomes, did not allow to provide standard procedures and normative or cut-off values in the presented diseases. Because there are a variety of tools, methods, and techniques that have been used in the studies that were reviewed, it is difficult to evaluate them using established standards. However, ultrasonography correlates well with clinical evaluation of dysphagia and therefore has prognostic and rehabilitation potential. Future studies should aim to develop and utilize a common interdisciplinary protocol that includes standard procedures and outcomes to define normative values applicable in the different conditions.


Asunto(s)
Trastornos de Deglución , Enfermedades del Sistema Nervioso , Humanos , Trastornos de Deglución/diagnóstico por imagen , Trastornos de Deglución/etiología , Calidad de Vida , Deglución/fisiología , Enfermedades del Sistema Nervioso/complicaciones , Ultrasonografía
5.
Stroke ; 53(12): 3671-3678, 2022 12.
Artículo en Inglés | MEDLINE | ID: mdl-36039754

RESUMEN

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.


Asunto(s)
Trastornos de la Coagulación Sanguínea , Isquemia Encefálica , Hemostáticos , Accidente Cerebrovascular Isquémico , Accidente Cerebrovascular , Humanos , Femenino , Anciano , Masculino , Activador de Tejido Plasminógeno/efectos adversos , Terapia Trombolítica/efectos adversos , Fibrinolíticos/efectos adversos , Fibrinógeno , Estudios Prospectivos , Hemorragia Cerebral/complicaciones , Trastornos de la Coagulación Sanguínea/complicaciones , Hemostáticos/uso terapéutico , Resultado del Tratamiento , Isquemia Encefálica/complicaciones , Isquemia Encefálica/tratamiento farmacológico
6.
Sensors (Basel) ; 22(13)2022 Jun 23.
Artículo en Inglés | MEDLINE | ID: mdl-35808257

RESUMEN

There is a growing research interest in wireless non-invasive solutions for core temperature estimation and their application in clinical settings. This study aimed to investigate the use of a novel wireless non-invasive heat flux-based thermometer in acute stroke patients admitted to a stroke unit and compare the measurements with the currently used infrared (IR) tympanic temperature readings. The study encompassed 30 acute ischemic stroke patients who underwent continuous measurement (Tcore) with the novel wearable non-invasive CORE device. Paired measurements of Tcore and tympanic temperature (Ttym) by using a standard IR-device were performed 3−5 times/day, yielding a total of 305 measurements. The predicted core temperatures (Tcore) were significantly correlated with Ttym (r = 0.89, p < 0.001). The comparison of the Tcore and Ttym measurements by Bland−Altman analysis showed a good agreement between them, with a low mean difference of 0.11 ± 0.34 °C, and no proportional bias was observed (B = −0.003, p = 0.923). The Tcore measurements correctly predicted the presence or absence of Ttym hyperthermia or fever in 94.1% and 97.4% of cases, respectively. Temperature monitoring with a novel wireless non-invasive heat flux-based thermometer could be a reliable alternative to the Ttym method for assessing core temperature in acute ischemic stroke patients.


Asunto(s)
Accidente Cerebrovascular Isquémico , Termómetros , Temperatura Corporal , Fiebre/diagnóstico , Humanos , Temperatura , Membrana Timpánica
7.
Neuroradiology ; 63(9): 1419-1427, 2021 Sep.
Artículo en Inglés | MEDLINE | ID: mdl-33532920

RESUMEN

PURPOSE: The fear of COVID-19 infection may discourage patients from going to the hospital even in case of sudden onset of disabling symptoms. There is growing evidence of the reduction of stroke admissions and higher prevalence of severe clinical presentation. Yet, no studies have investigated the perfusion pattern of acute strokes admitted during the lockdown. We aimed to evaluate the effects of the COVID-19 pandemic on hyper-acute stroke CT perfusion (CTP) pattern during the first months of the pandemic in Italy. METHODS: In this retrospective observational study, we analyzed CTP images and clinical data of ischemic stroke patients admitted between 9 March and 2 June 2020 that underwent CTP (n = 30), to compare ischemic volumes and clinical features with stroke patients admitted during the same period in 2019 (n = 51). In particular, CTP images were processed to calculate total hypoperfused volumes, core volumes, and mismatch. The final infarct volumes were calculated on follow-up CT. RESULTS: Significantly higher total CTP hypoperfused volume (83.3 vs 18.5 ml, p = 0.003), core volume (27.8 vs 1.0 ml, p < 0.001), and unfavorable mismatch (0.51 vs 0.91, p < 0.001) were found during the COVID-19 period compared to no-COVID-19 one. The more unfavorable perfusion pattern at admission resulted in higher infarct volume on follow-up CT during COVID-19 (35.5 vs 3.0 ml, p < 0.001). During lockdown, a reduction of stroke admissions (- 37%) and a higher prevalence of severe clinical presentation (NIHSS ≥ 10; 53% vs 36%, p = 0.029) were observed. CONCLUSION: The results of CTP analysis provided a better insight in the higher prevalence of major severity stroke patients during the COVID-19 period.


Asunto(s)
Isquemia Encefálica , COVID-19 , Accidente Cerebrovascular Isquémico , Accidente Cerebrovascular , Control de Enfermedades Transmisibles , Miedo , Humanos , Pandemias , Perfusión , Imagen de Perfusión , SARS-CoV-2 , Accidente Cerebrovascular/diagnóstico por imagen , Tomografía Computarizada por Rayos X
8.
J Thromb Thrombolysis ; 51(1): 159-167, 2021 Jan.
Artículo en Inglés | MEDLINE | ID: mdl-32424778

RESUMEN

It is not known whether the current territorial organization for acute revascularization treatments in ischemic stroke patients guarantees similar time to treatment and functional outcomes among different levels of institutional stroke care. We aimed to assess the impact of time to treatment on functional outcomes in ischemic stroke patients who received intravenous thrombolysis (IVT) alone, bridging (IVT plus thrombectomy), or primary thrombectomy in level 1 and level 2 Stroke Units (SUs) in Triveneto, a geographical macroarea in Northeast of Italy. We conducted an analysis of data prospectively collected from 512 consecutive ischemic stroke patients who received IVT and/or mechanical thrombectomy in 25 SUs from September 17th to December 9th 2018. The favorable outcome measures were mRS score 0-1 and 0-2 at 3 months. The unfavorable outcome measures were mRS score 3-5 and death at 3 months. We estimated separately the possible association of each variable for time to treatment (onset-to-door, door-to-needle, onset-to-needle, door-to-groin puncture, needle-to-groin puncture, and onset-to-groin puncture) with 3-month outcome measures by calculating the odds ratios (ORs) with two-sided 95% confidence intervals (CI) after adjustment for pre-defined variables and variables with a probability value ≤ 0.10 in the univariate analysis for each outcome measure. Distribution of acute revascularization treatments was different between level 1 and level 2 SUs (p < 0.001). Among 182 patients admitted to level 1 SUs (n = 16), treatments were IVT alone in 164 (90.1%), bridging in 12 (6.6%), and primary thrombectomy in 6 (3.3%) patients. Among 330 patients admitted to level 2 SUs (n = 9), treatments were IVT alone in 219 (66.4%), bridging in 74 (22.4%), and primary thrombectomy in 37 (11.2%) patients. Rates of excellent outcome (51.4% vs 45.9%), favorable outcome (60.1% vs 58.7%), unfavorable outcome (33.3% vs 33.8%), and death (9.8% vs 11.3%) at 3 months were similar between level 1 and 2 SUs. No significant association was found between time to IVT alone (onset-to-door, door-to-needle, and onset-to-needle) and functional outcomes. After adjustment, door-to-needle time ≤ 60 min (OR 4.005, 95% CI 1.232-13.016), shorter door-to-groin time (OR 0.991, 95% CI 0.983-0.999), shorter needle-to-groin time (OR 0.986, 95% CI 0.975-0.997), and shorter onset-to-groin time (OR 0.994, 95% CI 0.988-1.000) were associated with mRS 0-1. Shorter door-to-groin time (OR 0.991, 95% CI 0.984-0.998), door-to-groin time ≤ 90 min (OR 12.146, 95% CI 2.193-67.280), shorter needle-to-groin time (OR 0.983, 95% CI 0.972-0.995), and shorter onset-to-groin time (OR 0.993, 95% CI 0.987-0.999) were associated with mRS 0-2. Longer door-to-groin time (OR 1.007, 95% CI 1.001-1.014) and longer needle-to-groin time (OR 1.019, 95% CI 1.005-1.034) were associated with mRS 3-5, while door-to-groin time ≤ 90 min (OR 0.229, 95% CI 0.065-0.808) was inversely associated with mRS 3-5. Longer onset-to-needle time (OR 1.025, 95% CI 1.002-1.048) was associated with death. Times to treatment influenced the 3-month outcomes in patients treated with thrombectomy (bridging or primary). A revision of the current territorial organization for acute stroke treatments in Triveneto is needed to reduce transfer time and to increase the proportion of patients transferred from a level 1 SU to a level 2 SU to perform thrombectomy.


Asunto(s)
Accidente Cerebrovascular Isquémico/terapia , Trombectomía/métodos , Terapia Trombolítica/métodos , Anciano , Anciano de 80 o más Años , Femenino , Humanos , Accidente Cerebrovascular Isquémico/epidemiología , Italia/epidemiología , Masculino , Persona de Mediana Edad , Estudios Prospectivos , Resultado del Tratamiento
9.
Neurol Sci ; 42(10): 4231-4240, 2021 Oct.
Artículo en Inglés | MEDLINE | ID: mdl-33590432

RESUMEN

BACKGROUND AND PURPOSE: Diagnosis of posterior circulation stroke may be challenged. National Institutes of Health Stroke Scale (NIHSS) and brain imaging (non-contrast brain computed tomography-CT) are used for diagnosis; evaluation on posterior circulation stroke remains a limit of NIHSS, and the value of non-contrast CT (NCCT) is limited due to artifacts caused by the bones of the base of the skull. We tested the validity and prognostic value of posterior circulation Alberta Stroke Program Early CT Score (pc-ASPECTS) in patients with posterior circulation stroke. METHODS: Pc-ASPECTS allots the posterior circulation 10 points. We studied 50 patients with posterior circulation stroke. We applied pc-ASPECTS to NCCT, CT angiography, and CT Perfusion. We evaluated the correlation of pc-ASPECT with outcome parameters for stroke. RESULTS: Out of 50 patients, CTP showed abnormalities in 34 cases. The pc-ASPECT score calculated on brain CT and on the brain CT + angio CT had a sensibility of 24%, calculated on brain CT, angio CT and CTPerfusion gain a sensibility of 72%. Pc-ASPECT MTT resulted to be the more reliable parameter: outcome given by NIHSS score at discharge, mRS at discharge, and at 3 months was more severe in patients with Pc-ASPECT MTT alteration. Outcome given by NIHSS score at discharge and mRS at discharge and 1 at 3 months was more severe in patients with higher NIHSS score at admission. CONCLUSION: We evaluated the usefulness of pc-ASPECTS on CTP in predicting functional outcome in acute posterior circulation stroke that appears to be a powerful marker for predicting functional outcome.


Asunto(s)
Isquemia Encefálica , Accidente Cerebrovascular , Angiografía Cerebral , Angiografía por Tomografía Computarizada , Humanos , Pronóstico , Estudios Retrospectivos , Accidente Cerebrovascular/diagnóstico por imagen , Tomografía Computarizada por Rayos X
10.
Neurol Sci ; 42(11): 4599-4606, 2021 Nov.
Artículo en Inglés | MEDLINE | ID: mdl-33661482

RESUMEN

BACKGROUND: Efficiency of care chain response and hospital reactivity were and are challenged for stroke acute care management during the pandemic period of coronavirus disease 2019 (COVID-19) in North-Eastern Italy (Veneto, Friuli-Venezia-Giulia, Trentino-Alto-Adige), counting 7,193,880 inhabitants (ISTAT), with consequences in acute treatment for patients with ischemic stroke. METHODS: We conducted a retrospective data collection of patients admitted to stroke units eventually treated with thrombolysis and thrombectomy, ranging from January to May 2020 from the beginning to the end of the main first pandemic period of COVID-19 in Italy. The primary endpoint was the number of patients arriving to these stroke units, and secondary endpoints were the number of thrombolysis and/or thrombectomy. Chi-square analysis was used on all patients; furthermore, patients were divided into two cohorts (pre-lockdown and lockdown periods) and the Kruskal-Wallis test was used to test differences on admission and reperfusive therapies. RESULTS: In total, 2536 patients were included in 22 centers. There was a significant decrease of admissions in April compared to January. Furthermore, we observed a significant decrease of thrombectomy during the lockdown period, while thrombolysis rate was unaffected in the same interval across all centers. CONCLUSIONS: Our study confirmed a decrease in admission rate of stroke patients in a large area of northern Italy during the lockdown period, especially during the first dramatic phase. Overall, there was no decrease in thrombolysis rate, confirming an effect of emergency care system for stroke patients. Instead, the significant decrease in thrombectomy rate during lockdown addresses some considerations of local and regional stroke networks during COVID-19 pandemic evolution.


Asunto(s)
COVID-19 , Accidente Cerebrovascular , Control de Enfermedades Transmisibles , Humanos , Italia/epidemiología , Pandemias , Estudios Retrospectivos , SARS-CoV-2 , Accidente Cerebrovascular/epidemiología , Accidente Cerebrovascular/terapia
12.
Neurol Sci ; 39(10): 1705-1712, 2018 Oct.
Artículo en Inglés | MEDLINE | ID: mdl-29987433

RESUMEN

OBJECTIVE: Ischemic stroke is a neuroemergency condition highly treatable with thrombolysis and thrombectomy. Recently, observational studies have brought insights into clinical and imaging characteristics of wake-up stroke, which interested up to 25% of ischemic stroke patients. In clinical practice, wake-up strokes are usually not considered for reperfusion therapy. The aim of this study was to investigate the use CT perfusion imaging in patients with wake-up stroke and to assess the effect of neuroimaging information provided by CT perfusion maps on the efficacy and safety of thrombolysis and thrombectomy. PATIENTS AND METHOD: We studied 22 wake-up stroke (WUS) patients (13F/9M mean age) who underwent reperfusion therapy after the eligibility assessed by the CT perfusion imaging (< 50% core-to-penumbra ratio and negative CT perfusion). RESULTS: Mean National Institutes of Health Stroke Scale (NIHSS) was 8.1 ± 4.9 at admission while 3.3 ± 5.1 at discharge, significantly different from admission (p < 0.001). As many as ten patients had mRS lower than 3 at discharge. Intracranial hemorrhage occurred in five patients and caused symptoms worsening only in two patients (decrease of NIHSS score of 4 points) of which one patient died. CONCLUSION: The main finding of this study is that wake-up stroke with adequate selection by CT perfusion may benefit reperfusion treatment.


Asunto(s)
Isquemia Encefálica/diagnóstico por imagen , Encéfalo/diagnóstico por imagen , Imagen de Perfusión , Accidente Cerebrovascular/diagnóstico por imagen , Tomografía Computarizada por Rayos X , Adulto , Anciano , Anciano de 80 o más Años , Encéfalo/fisiopatología , Isquemia Encefálica/fisiopatología , Isquemia Encefálica/terapia , Femenino , Humanos , Masculino , Persona de Mediana Edad , Neuroimagen , Seguridad del Paciente , Estudios Retrospectivos , Accidente Cerebrovascular/fisiopatología , Accidente Cerebrovascular/terapia , Trombectomía , Terapia Trombolítica , Resultado del Tratamiento
13.
J Stroke Cerebrovasc Dis ; 27(7): 1937-1948, 2018 Jul.
Artículo en Inglés | MEDLINE | ID: mdl-29576398

RESUMEN

BACKGROUND: Aphasia is one of the most devastating stroke-related consequences for social interaction and daily activities. Aphasia recovery in acute stroke depends on the degree of reperfusion after thrombolysis or thrombectomy. As aphasia assessment tests are often time-consuming for patients with acute stroke, physicians have been developing rapid and simple tests. The aim of our study is to evaluate the improvement of language functions in the earliest stage in patients treated with thrombolysis and in nontreated patients using our rapid screening test. MATERIALS AND METHODS: Our study is a single-center prospective observational study conducted at the Stroke Unit of the University Medical Hospital of Trieste (January-December 2016). Patients treated with thrombolysis and nontreated patients underwent 3 aphasia assessments through our rapid screening test (at baseline, 24 hours, and 72 hours). The screening test assesses spontaneous speech, oral comprehension of words, reading aloud and comprehension of written words, oral comprehension of sentences, naming, repetition of words and a sentence, and writing words. RESULTS: The study included 40 patients: 18 patients treated with thrombolysis and 22 nontreated patients. Both groups improved over time. Among all language parameters, spontaneous speech was statistically significant between 24 and 72 hours (P value = .012), and between baseline and 72 hours (P value = .017). CONCLUSIONS: Our study demonstrates that patients treated with thrombolysis experience greater improvement in language than the nontreated patients. The difference between the 2 groups is increasingly evident over time. Moreover, spontaneous speech is the parameter marked by the greatest improvement.


Asunto(s)
Afasia/diagnóstico , Afasia/tratamiento farmacológico , Recuperación de la Función/efectos de los fármacos , Terapia Trombolítica , Anciano , Afasia/etiología , Afasia/mortalidad , Isquemia Encefálica/complicaciones , Isquemia Encefálica/tratamiento farmacológico , Isquemia Encefálica/mortalidad , Femenino , Humanos , Pruebas del Lenguaje , Masculino , Estudios Prospectivos , Índice de Severidad de la Enfermedad , Habla/efectos de los fármacos , Accidente Cerebrovascular/complicaciones , Accidente Cerebrovascular/tratamiento farmacológico , Accidente Cerebrovascular/mortalidad , Factores de Tiempo
14.
J Stroke Cerebrovasc Dis ; 27(8): 2200-2207, 2018 Aug.
Artículo en Inglés | MEDLINE | ID: mdl-29724610

RESUMEN

BACKGROUND: The National Institutes of Health Stroke Scale (NIHSS) is the most adopted stroke patients' evaluation tool in emergency settings to assess the severity of stroke and to determine the patients' eligibility for specific treatments. Computed tomography perfusion (CTP) is crucial to identify salvageable tissue that can benefit from the reperfusion treatment. The aim of this study is to identify the relation between the NIHSS scores and the hypoperfused volumes evaluated by CTP in patients with hyperacute ischemic stroke. METHODS: This retrospective study was conducted on 105 patients with ischemic stroke who underwent NIHSS assessment and CTP in the hyperacute phase. Hypoperfused volume was evaluated by CTP maps processed with semi-automatic algorithm. An analysis was conducted to determine the degree of correlation between the NIHSS scores and the ischemic lesion volumes and to investigate the relation between the anterior and the posterior circulation strokes, as well as between the right and the left hemispheric strokes. RESULTS: A significant correlation was found between ischemic volume and NIHSS score at baseline (r = .82; P < .0001) in the entire cohort. A high NIHSS-volume correlation was identified in the anterior circulation stroke (r = .76; P < .0001); whereas, it was nonsignificant in the posterior circulation stroke. NIHSS score and volume correlated for the left and the right hemispheric strokes (r = .83 and .81; P < .0001), showing a slightly higher slope in the left. CONCLUSION: This study showed a strong correlation between the baseline NIHSS score and the ischemic volume estimated by CTP. We confirmed that NIHSS is a reliable predictor of perfusion deficits in acute ischemic stroke. CTP allows fast imaging assessment in the hyperacute phase. The results highlight the importance of these diagnostic tools in the assessment of stroke severity and in acute decision-making.


Asunto(s)
Isquemia Encefálica/diagnóstico por imagen , Encéfalo/diagnóstico por imagen , Circulación Cerebrovascular , Accidente Cerebrovascular/diagnóstico por imagen , Tomografía Computarizada por Rayos X , Anciano , Algoritmos , Encéfalo/fisiopatología , Isquemia Encefálica/fisiopatología , Femenino , Humanos , Interpretación de Imagen Asistida por Computador , Masculino , Estudios Retrospectivos , Índice de Severidad de la Enfermedad , Accidente Cerebrovascular/fisiopatología
17.
J Stroke Cerebrovasc Dis ; 25(9): 2196-202, 2016 Sep.
Artículo en Inglés | MEDLINE | ID: mdl-27425766

RESUMEN

OBJECTIVE: Stroke is one of the leading causes of disability and death in the world. The endocannabinoid (eCB) system is upregulated in several neurological diseases including stroke. A previous animal study demonstrated an increased expression of the endocannabinoid receptor 1 (CB1R) in the penumbra area surrounding the ischemic core, suggesting a crucial role in inflammation/reperfusion after stroke. Regarding the localization of CB1/CB2 receptors, animal studies showed that cortical neurons, activated microglia, and astroglia are involved. Our aim was to evaluate the cerebral expression of CB1R in the ischemic brain areas of 9 patients who died due to acute cerebral infarction in the middle cerebral artery territory. METHODS: The cerebral autoptic tissue was collected within 48 hours since death. Ischemic and contralateral normal-appearing areas were identified. After tissue preprocessing, 4-µm-thick cerebral sections were incubated with the primary CB1R antibodies (Cayman Chemical Company, Ann Arbor, MI). Thereafter, all cerebral sections were hematoxylin treated. In each section, the total cell number and CB1R-positive cells were counted and the CB1R-positive cell count ratio was calculated. For statistical analysis, Student's t-test was used. RESULTS: In normal tissue, CB1R-positive neurons were the majority; a few non-neuronal cells expressed CB1R. In the ischemic areas, a few neurons were detectable. A significant increase in total CB1R staining was found in the ischemic regions compared to contralateral areas. CONCLUSIONS: We found an increase in CB1R expression in the ischemic region (neuronal and non-neuronal cell staining), suggesting the inflammatory reaction to the ischemic insult. Whether such response might mediate neuroprotective actions or excitotoxicity-related detrimental effects is still unclear.


Asunto(s)
Autopsia , Corteza Cerebral/metabolismo , Receptor Cannabinoide CB1/metabolismo , Accidente Cerebrovascular/metabolismo , Accidente Cerebrovascular/patología , Regulación hacia Arriba/genética , Anciano , Anciano de 80 o más Años , Corteza Cerebral/diagnóstico por imagen , Corteza Cerebral/patología , Femenino , Humanos , Masculino , Cambios Post Mortem , Estudios Retrospectivos , Estadística como Asunto , Accidente Cerebrovascular/diagnóstico por imagen , Tomografía Computarizada por Rayos X
20.
J Neurol ; 271(5): 2405-2411, 2024 May.
Artículo en Inglés | MEDLINE | ID: mdl-38206374

RESUMEN

INTRODUCTION: Stroke-heart syndrome is a physiopathological condition of cardiac suffering due to cerebral injury secondary to major vessel occlusion in anterior circulation. It can be detected by increase in cardiac blood biomarkers. Our aim was to investigate a possible ancillary effect of thrombolysis in mitigating Stroke-Heart Syndrome after acute ischaemic stroke. PATIENTS AND METHODS: We retrospectively collected ischaemic stroke patients admitted to our Stroke Unit between August 1, 2017 and December 31, 2020 and acutely treated for an intracranial anterior circulation occlusion, without anamnestic ischaemic cardiopathy. We divided patients into Group B ("Bridge") including patients treated with both thrombolysis and thrombectomy and Group D ("Direct") including primary thrombectomies. RESULTS: 120 patients were included in the study. Group B consisted of 92 patients, Group D of 28 patients, without significant differences in age, baseline and discharge NIHSS, cardiovascular risk factors or TOAST aetiology. Whilst admission, troponin levels were similar in both groups, significant differences in troponin peak (median 16 ng/L in Group B vs 45 ng/L in Group D, p = 0.022) and BNP values (median 455 pg/mL in Group B vs 784 pg/mL in Group D, p = 0.031) were found in the first 72 h since admission. Functional independence at discharge was significantly higher in Group B than Group D (mRS 0-2 36% vs 10%, p = 0.011). DISCUSSION AND CONCLUSION: Significant differences in troponin peak and BNP values suggest a reduced stroke-related heart impairment in patients treated with bridge therapeutic approach: thrombolysis prior to thrombectomy could have a complementary effect on reducing Stroke-Heart Syndrome, improving overall neurological outcome.


Asunto(s)
Accidente Cerebrovascular Isquémico , Terapia Trombolítica , Humanos , Masculino , Femenino , Anciano , Terapia Trombolítica/métodos , Estudios Retrospectivos , Accidente Cerebrovascular Isquémico/complicaciones , Accidente Cerebrovascular Isquémico/sangre , Persona de Mediana Edad , Trombectomía/métodos , Anciano de 80 o más Años , Cardiopatías/etiología , Cardiopatías/complicaciones , Fibrinolíticos/administración & dosificación , Síndrome
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