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1. Caracterización de las interrupciones que se producen en las consultas de los médicos de familia. Observatorio de la Medicina de Familia del Maresme

Author: Antonio Casanova Uclés, Estíbaliz López Torrent, Elena Zurilla Duarte, Juan-Jose Montero Alía, M. Català, M.J. Merino, A. Alba, J. Martí, E. Fabré, R.M. Castellanos, A. Saiz, M. Bartolomé, L. Villanueva, M.C. Barreiro, I. Monreal, R. Romeu, I. Buxadé, G. Hinojosa, M.V. Zamora, N. Mengual, A. Armada, T. Gros, J. Creus, J. Herreros, D. Sánchez, G. Casas, M. Aizpurúa, P. Gutièrrez, R. Coma, J. Massons, M. Bundó, S. Cid, J. Domènech, T. Jiménez, E. Miguel, S. Sancho, M. Sastre, A. Champer, M. Megías, M. Domínguez, A. Villar, M. Gàmez, M.J. Font, R. Francisco, C. Forcada, I. Moreno, J. Gerhard, C. Viñas, E. Valentín, R.M. Sierra, P. Roig, I. Damas, L. Rodríguez, A. Cardelus, C. Pascual, G. Estrada, and M. Navajas
Subjects: Medicine (General), R5-920
Published: 2020
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2. Seasonal cycle of cloud cover analyzed using Meteosat images

Author: J. Massons, D. Domingo, and J. Lorente
Subjects: Science, Physics, QC1-999, Geophysics. Cosmic physics, QC801-809
Abstract: A cloud-detection method was used to retrieve cloudy pixels from Meteosat images. High spatial resolution (one pixel), monthly averaged cloud-cover distribution was obtained for a 1-year period. The seasonal cycle of cloud amount was analyzed. Cloud parameters obtained include the total cloud amount and the percentage of occurrence of clouds at three altitudes. Hourly variations of cloud cover are also analyzed. Cloud properties determined are coherent with those obtained in previous studies.Key words. Cloud cover · Meteosat
Published: 1998
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3. Pollutant transport in coastal areas with and without background wind

Author: J. Camps, J. Massons, M. R. Soler, and E. C. Nickerson
Subjects: Science, Physics, QC1-999, Geophysics. Cosmic physics, QC801-809
Abstract: A three-dimensional meteorological model and a Lagrangian particle dispersion model are used to study the effects of a uniform large-scale wind on the dispersion of a non-reactive pollutant in a coastal region with complex terrain. Simulations are carried out both with and without a background wind. A comparison between model results and measured data (wind and pollutant concentrations) indicates that the coupled model system provides a useful mechanism for analyzing pollutant dispersion in coastal regions.
Published: 1997
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4. Numerical modelling of pollutant dispersion in sea breeze conditions

Author: J. Camps, J. Massons, and M. R. Soler
Subjects: Science, Physics, QC1-999, Geophysics. Cosmic physics, QC801-809
Abstract: The characteristics of air pollution in Tarragona (Spain) were investigated. Tarragona has an important petrochemical industry in a coastal region with a complex terrain. The numerical study was made in sea breeze conditions with a three-dimensional mesoscale model. Temporal and spatial variations of the wind fields have been used in the Eulerian equation for a non-reactive pollutant. The results of this study reveal the complexity of the dispersion patterns due to the combined effects of the sea breeze circulation and the orography. This work presents a comparison between the model output and the observed wind data by sodar and surface wind measurements. The evaluation shows that the model is capable of providing very realistic wind fields within this domain.
Published: 1996
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5. Numerical modelling of pollutant dispersion in sea breeze conditions

Author: J. Camps, J. Massons, and M. R. Soler
Subjects: Science, Physics, QC1-999, Geophysics. Cosmic physics, QC801-809
Abstract: The characteristics of air pollution in Tarragona (Spain) were investigated. Tarragona has an important petrochemical industry in a coastal region with a complex terrain. The numerical study was made in sea breeze conditions with a three-dimensional mesoscale model. Temporal and spatial variations of the wind fields have been used in the Eulerian equation for a non-reactive pollutant. The results of this study reveal the complexity of the dispersion patterns due to the combined effects of the sea breeze circulation and the orography. This work presents a comparison between the model output and the observed wind data by sodar and surface wind measurements. The evaluation shows that the model is capable of providing very realistic wind fields within this domain.

6. The 'Effect of Marangoni Convection on Heat Transfer in Phase Change Materials' experiment

Author: J. Porter, A. Laverón-Simavilla, M.M. Bou-Ali, X. Ruiz, F. Gavalda, J.M. Ezquerro, P. Salgado Sánchez, U. Martínez, D. Gligor, I. Tinao, J. Gómez, J. Fernández, J. Rodríguez, A. Borshchak Kachalov, V. Lapuerta, B. Seta, J. Massons, D. Dubert, A. Sanjuan, V. Shevtsova, and L. García-Fernández
Subjects: Aerospace Engineering, Microgravity, Phase change materials, Thermocapillary effect, Thermal control
Abstract: Present as well as future challenges of space exploration point to the need for improved thermal control systems. The “Effect of Marangoni Convection on Heat Transfer in Phase Change Materials” experiment, which is approved by ESA for execution on board the International Space Station, aims to contribute directly to current knowledge and basic understanding of heat and mass transport in phase change materials (PCMs) that incorporate a free surface in reduced gravity. The experiment will apply fixed temperatures to opposite ends of PCM samples held in cuboidal and cylindrical containers in order to drive controlled melting and solidification cycles that will be observed by means of optical cameras. The recorded images will be complemented by thermal measurements at key positions along the samples, which will allow different thermocapillary flow regimes to be distinguished according to their temporal dynamics. It is anticipated that thermal Marangoni (thermocapillary) convection will increase the heat transfer rate in these PCM devices by a significant factor (on the order of two or more) compared to melting governed by thermal diffusion (conduction). If the PCM designs prove robust, the experiment results can be expected to lead to substantial improvements in future designs for passive PCM applications in space missions.
Published: 2023
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7. Transitions between nonlinear regimes in melting and liquid bridges in microgravity

Author: B. S̆eta, D. Dubert, M. Prats, Jna. Gavalda, J. Massons, M.M. Bou-Ali, X. Ruiz, and V. Shevtsova
Subjects: Fluid Flow and Transfer Processes, Mechanical Engineering, Condensed Matter Physics
Published: 2022
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8. Clinical characteristics of acute lacunar stroke in women: emphasis on gender differences

Author: Adrià Arboix, Montserrat Oliveres, Emili Comes, Luis García-Eroles, Lorena Blanco-Rojas, and J. Massons
Subjects: Male, medicine.medical_specialty, Lacunar stroke, Neurology, Internal medicine, medicine, Humans, cardiovascular diseases, Prospective cohort study, Stroke, Aged, Retrospective Studies, Neuroradiology, Aged, 80 and over, Analysis of Variance, Sex Characteristics, Vascular disease, business.industry, Age Factors, Retrospective cohort study, General Medicine, Length of Stay, Middle Aged, medicine.disease, nervous system diseases, Europe, Hypertension, Stroke, Lacunar, Physical therapy, Female, Neurology (clinical), business, Sex characteristics
Abstract: There are few studies analyzing features of ischemic stroke subtypes in women. We assessed gender differences in lacunar stroke subtype based on data collected from a prospective stroke registry in Barcelona, Spain. Lacunar ischemic stroke was diagnosed in 310 (8.1 %) women and 423 (11.1 %) men of a total of 3,808 consecutive stroke patients included in a prospective hospital-based stroke registry, in Barcelona, Catalonia (Spain), over a period of 19 years. Independent factors for lacunar stroke in women were assessed by multivariate analysis. Women accounted for 42 % of all lacunar stroke patients (n = 733) in the registry and 11.4 % of all patients with ischemic stroke (n = 2,704). Very old age (85 years or older) was found in 20.3 % in women versus 11.1 % in men (P0.0001). In the logistic regression analysis, obesity [odds ratio (OR) = 4.24], prolonged hospital stay (12 days) (OR = 1.59), arterial hypertension (OR = 1.50), and age (OR = 1.06) were significant variables independently associated with lacunar stoke in women, whereas peripheral vascular disease (OR = 0.51), chronic obstructive pulmonary disease (OR = 0.46), renal dysfunction (OR = 0.13), and heavy smoking (OR = 0.04) were independent variables for lacunar stroke in men. Women with lacunar stroke were remarkably older and presented with obesity and hypertension more frequently than did men. Lacunar stroke severity was similar in men and women. These findings in lacunar stroke patients could be explained by differences in gender for ischemic stroke in general.
Published: 2013
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9. Determination of photothermal conversion efficiency of graphene and graphene oxide through an integrating sphere method

Author: J.J. Carvajal, Ol.A. Savchuk, J. Massons, M. Aguiló, F. Díaz, Física i Cristal·lografia de Nanomaterials, Física i Cristal.lografia de Materials, Química Física i Inorgànica, and Universitat Rovira i Virgili
Subjects: photothermal, Chemistry, Grafè, graphene, 0008-6223, oxide, Química
Abstract: We report a new method for the determination of photothermal conversion efficiency of photothermal agents, based on the use of an integrating sphere. We validated this method by comparing the photothermal conversion efficiency of Au nanorods calculated by this method and by the more conventional time constant method. Then, we applied this method to determine the photothermal conversion efficiency of graphene and graphene oxide nanosheets dispersions in dimethylformamide and water, respectively, finding out that they are excellent photothermal agents with photothermal conversion efficiencies among the highest reported up to now. We also analyzed the influence of the concentration of the materials, and the wavelength and power of irradiation in the temperature increase that can be achieved with them, finding out that they can be used, for instance, in cancer treatment through hyperthermia procedures with reduced costs when compared to other photothermal agents.
Published: 2016
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10. Novel low-cost, compact and fast signal processing sensor for ratiometric luminescent nanothermometry

Author: J.J. Carvajal, Ol. A. Savchuk, J. Massons, C. Cascales, M. Aguiló, F. Díaz, Física i Cristal·lografia de Nanomaterials, Física i Cristal.lografia de Materials, Química Física i Inorgànica, and Universitat Rovira i Virgili
Subjects: Nanopartícules -- Luminescència, Chemistry, Nanopartícules -- Propietats tèrmiques, luminescence, nanoparticles, Non-invasive, Química, 0924-4247
Abstract: DOI: 10.1016/j.sna.2016.08.031 URL: http://www.sciencedirect.com/science/article/pii/S0924424716304162 Filiació URV: SI We developed a new compact, low-cost and non-invasive temperature sensor based on a ratiometric luminescence technique. The setup included a commercial digital color sensor, which collects simultaneously signals in the blue, green and red regions of the electromagnetic spectrum, usually used to assess the quality of computer screens and used for the first time here as a sensor for luminescent thermometry, coupled to an optical system that focuses an excitation laser beam onto luminescent nanoparticles emitting at least in two of these electromagnetic regions, which simplifies considerably the design, alignment and measurement procedures of setups used up to now for the same purpose. The same optical system collects the emission arising from the luminescent nanoparticles and directs it towards the digital color sensor through a dichroic mirror. We probed the potentiality of this setup for luminescence thermometry in the biological range of temperatures using Er,Yb:NaYF4, and up to 673 K for microelectronic applications using Tm,Yb:GdVO4 up-converting nanoparticles. The thermal sensitivity obtained in both cases is similar to that previously reported for the same kinds of nanoparticles using conventional systems. This validates our setup for temperature measurements. Also, we developed new flexible and transparent polymer composites, in which we embedded upconversion luminescent nanoparticles of Er,Yb:NaYF4 in PDMS, a standard polymer for microfluidic devices used for biomedical studies, which allow fabricating thermometric microfluidic chips in which temperature can be determined using our setup. The thermal sensitivity for these composites is slightly
Published: 2016
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11. Inestabilidad compleja aguda de codo: etiopatogenia, diagnóstico y estrategia quirúrgica razonada

Author: J. Massons Albareda, J. Pedemonte Jansana, J. Mir Bulló, and M. García Portabella
Subjects: business.industry, Medicine, Orthopedics and Sports Medicine, Surgery, business
Published: 2010
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12. Acute complex instability of the elbow: aetiopathogenesis, diagnosis and reasoned surgical strategy

Author: M. García Portabella, J. Pedemonte Jansana, J. Massons Albareda, and J. Mir Bulló
Subjects: medicine.medical_specialty, Surgical strategy, medicine.anatomical_structure, business.industry, Elbow, Medicine, Orthopedics and Sports Medicine, Surgery, business, Instability
Published: 2010
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13. Crystal Growth and Characterization of Type III Ytterbium-Doped KGd(PO3)4: A New Nonlinear Laser Host

Author: Francesc Díaz, I. Parreu, Magdalena Aguiló, J. Massons, and R. Sole
Subjects: Ytterbium, Materials science, General Chemical Engineering, Doping, chemistry.chemical_element, Crystal growth, General Chemistry, Laser, law.invention, Characterization (materials science), Crystallography, chemistry, law, Materials Chemistry, Crystallization
Abstract: We determined how evolved the P21 crystallization region of ytterbium-doped KGd(PO3)4 (Yb:KGP) as a function of the ytterbium concentration in the composition region close to that previously determined as the optimum region to grow single crystals of undoped KGP. In this region, the border between the polymorphs KYbxGd1-x(PO3)4 with long-chain geometry and KYbxGd1-xP4O12 with cyclical geometry varied depending on the ytterbium concentration. Inclusion-free single crystals of Yb:KGP were successfully grown using the top-seeded solution growth technique under conditions similar to those of KGP. Ytterbium doping in KGP was proved to be possible and effective. The effect of the ytterbium doping on structural and optical properties of the KGP host was determined. We found that Yb:KGP decomposed irreversibly at 1130 K. The vibrational structure of both KGP and Yb:KGP was found to be similar to other metaphosphates. The spectroscopic properties of ytterbium in the KGP host were analyzed.
Published: 2007
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14. Haemorrhagic pure motor stroke

Author: Miquel Balcells, J. Massons, Montserrat Oliveres, L García-Eroles, and Adrià Arboix
Subjects: Male, Weakness, Lacunar stroke, Internal capsule, Nausea, Brain Ischemia, Age Distribution, Humans, Medicine, Prospective Studies, Registries, Prospective cohort study, Stroke, Aged, Cerebral Hemorrhage, business.industry, Brain, Extremities, Middle Aged, medicine.disease, Magnetic Resonance Imaging, Paresis, Hemiparesis, Neurology, Anesthesia, Vomiting, Female, Neurology (clinical), medicine.symptom, business
Abstract: To describe the clinical characteristics of haemorrhagic pure motor stroke (PMS). Twelve patients with haemorrhagic PMS were identified. Haemorrhagic PMS accounted for 3.2% of all cases of pure motor hemiparesis (n = 380) and 3.3% of intracerebral haemorrhage (n = 364) entered in the database. When compared with PMS of ischaemic origin, patients with haemorrhagic PMS were more likely to be younger (62.2 vs. 75.2 years, P = 0.003) and to have headache (33% vs. 6.3%, P =0.007) and thalamus involvement (25% vs. 2.4%, P = 0.005). Limb weakness (100% vs. 74.1%; P = 0.03), involvement of the internal capsule (50% vs. 17.3%, P = 0.012) and symptom free at discharge (25% vs. 3.7%, P = 0.012) were significantly more frequent in patients with haemorrhagic PMS than in the remaining cases of haemorrhagic stroke, whereas nausea and vomiting (0% vs. 25.9%, P = 0.03), altered consciousness (0% vs. 42.9%, P = 0.001), sensory symptoms (8.3% vs. 46.9%, P =0.007) and ventricular haemorrhage (0% vs. 26.1%, P = 0.028) were significantly less frequent. Haemorrhagic PMS is a very infrequent stroke subtype. Headache at stroke onset may be useful sign for distinguishing haemorrhagic PMS from other causes of lacunar stroke. There are important differences between haemorrhagic PMS and the remaining intracerebral haemorrhages.
Published: 2007
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15. Determinants of early outcome in spontaneous lobar cerebral hemorrhage

Author: J. Massons, Montserrat Oliveres, Adrià Arboix, Cecilia Targa, Olga Parra, C. Manzano, and L García-Eroles
Subjects: Male, medicine.medical_specialty, Multivariate analysis, Chronic liver disease, Severity of Illness Index, Central nervous system disease, Pulmonary Disease, Chronic Obstructive, Hematoma, Risk Factors, Internal medicine, medicine, Humans, Hospital Mortality, Registries, Aged, Cerebral Hemorrhage, COPD, Vascular disease, business.industry, Respiratory disease, General Medicine, Odds ratio, Middle Aged, Prognosis, medicine.disease, Surgery, Stroke, Survival Rate, Logistic Models, Neurology, Cardiology, Female, Neurology (clinical), business
Abstract: Objective – To identify determinants of early outcome in spontaneous lobar hemorrhage. Materials and methods – From 2500 acute stroke patients included in a prospective hospital-based stroke registry over a 12-year period, 97 cases of lobar hematoma were selected. Determinants of in-hospital mortality were studied in multiple regression models. Results – Lobar hematomas accounted for 3.9% of all acute stroke patients and 35.9% of intracerebral hemorrhages. The presence of chronic obstructive pulmonary disease (COPD) was a significant predictive variable in the model based on demographic variables and vascular risk factors [odds ratio (OR): 17.18; 95% CI: 1.77–166.22] and in the model based on these variables plus clinical data (OR: 15.12; 95% CI: 1.27–179.59). Other predictive variables included altered consciousness, previous cerebral infarct and chronic liver disease. Conclusions – COPD appeared as the most important predictor of death during hospitalization after lobar cerebral hemorrhage, a finding not generally acknowledged earlier.
Published: 2006
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16. Impact of Female Gender on Prognosis in Type 2 Diabetic Patients with Ischemic Stroke

Author: Manel Milian, Luis García-Eroles, Montserrat Oliveres, J. Massons, and Adrià Arboix
Subjects: Male, medicine.medical_specialty, Lacunar stroke, Comorbidity, Type 2 diabetes, Risk Factors, Internal medicine, Diabetes mellitus, Humans, Medicine, Prospective Studies, cardiovascular diseases, Stroke, Aged, Retrospective Studies, Aged, 80 and over, Sex Characteristics, business.industry, Cerebral infarction, Atrial fibrillation, Cerebral Infarction, Prognosis, medicine.disease, Surgery, Diabetes Mellitus, Type 2, Neurology, Heart failure, Cardiology, Female, Neurology (clinical), business
Abstract: This study assessed gender differences in diabetic patients with ischemic stroke with respect to vascular risk factors, clinical features and early outcome. Ischemic stroke was diagnosed in 261 diabetic women and 300 diabetic men of 2,446 ischemic stroke patients included in a prospective stroke registry over 17 years. Mean +/- SD age was 77.5 +/- 8.3 years in women and 71.8 +/- 9.7 years in men (p < 0.021). Risk factors for stroke including hypertension, atrial fibrillation, congestive heart failure and valvular heart disease were significantly more common in women. Cardioembolic infarction occurred in 29.5% of women and 15.3% of men (p < 0.001), and lacunar stroke in 40.3% of men and 29.9% of women (p < 0.006). In-hospital mortality was 14.9% in diabetic women, and 8.3% in diabetic men (p < 0.02). After multivariate analysis, congestive heart failure (OR = 4.59), frontal lobe involvement (OR = 2.67), hypertension (OR = 1.62) and age were independent variables for ischemic stroke in diabetic women. Diabetic women had a poor prognosis, which may be due to differences in age, comorbidity and stroke subtype distribution.
Published: 2006
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17. Clinical study of 39 patients with atypical lacunar syndrome

Author: J. Massons, L García-Eroles, Carlos Casasnovas, M López-Grau, Miquel Balcells, and Adrià Arboix
Subjects: Brain Infarction, Male, Pediatrics, medicine.medical_specialty, Nausea, Internuclear ophthalmoplegia, Short Report, Diagnosis, Differential, Dysarthria, medicine, Humans, cardiovascular diseases, Stroke, Aged, Paresis, Aged, 80 and over, Neurologic Examination, Hemiballismus, medicine.diagnostic_test, business.industry, Magnetic resonance imaging, Syndrome, Middle Aged, Intracranial Arteriosclerosis, medicine.disease, Magnetic Resonance Imaging, nervous system diseases, Surgery, Causality, Psychiatry and Mental health, Hemiparesis, Acute Disease, Female, Neurology (clinical), medicine.symptom, Tomography, X-Ray Computed, business
Abstract: The aim of this study was to describe the clinical characteristics of atypical lacunar syndrome (ALS) based on data collected from a prospective acute stroke registry. In total, 2500 acute stroke patients were included in a hospital based prospective stroke registry over a 12 year period, of whom 39 were identified as having ALS and radiologically proven (by computed tomography or magnetic resonance imaging) lacunes. ALS accounted for 1.8% of all acute stroke patients, 2.1% of acute ischaemic stroke, and 6.8% of lacunar syndromes. ALS included dysarthria facial paresis (n = 12) or isolate dysarthria (n = 9), isolated hemiataxia (n = 4), pure motor hemiparesis with transient internuclear ophthalmoplegia (n = 4), pure motor hemiparesis with transient subcortical aphasia (n = 3), unilateral (n = 2) or bilateral (n = 3) paramedian thalamic infarct syndrome, and hemichorea hemiballismus (n = 2). Atypical lacunar syndromes were due to small vessel disease in 96% of patients. Atherothrombotic infarction occurred in one patient and cardioembolic infarct in another, both presenting pure dysarthria. Outcome was good (in hospital mortality 0%, symptom free at discharge 28.2%). After multivariate analysis, the variables of speech disturbances, nausea/vomiting, ischaemic heart disease, and sensory symptoms were found to be significantly associated with ALS. In conclusion, atypical lacunar syndrome is an infrequent stroke subtype (one of each 14 lacunar strokes). ALS occurred in 6.8% of lacunar strokes. Isolated dysarthria or dysarthria facial paresis were the most frequent presenting forms. The prognosis of this infrequent non-classic lacunar syndrome is good.
Published: 2005
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18. Acute isolated capsular strokeA clinical study of 148 cases

Author: A ARBOIX, M MARTINEZREBOLLAR, M OLIVERES, L GARCIAEROLES, J MASSONS, and C TARGA
Subjects: Surgery, Neurology (clinical), General Medicine
Published: 2005
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19. Determination of photothermal conversion efficiency of graphene and graphene oxide through an integrating sphere method

Author: Física i Cristal·lografia de Nanomaterials, Física i Cristal.lografia de Materials, Química Física i Inorgànica, Universitat Rovira i Virgili, J.J. Carvajal; Ol.A. Savchuk; J. Massons; M. Aguiló; F. Díaz, Física i Cristal·lografia de Nanomaterials, Física i Cristal.lografia de Materials, Química Física i Inorgànica, Universitat Rovira i Virgili, and J.J. Carvajal; Ol.A. Savchuk; J. Massons; M. Aguiló; F. Díaz
Abstract: We report a new method for the determination of photothermal conversion efficiency of photothermal agents, based on the use of an integrating sphere. We validated this method by comparing the photothermal conversion efficiency of Au nanorods calculated by this method and by the more conventional time constant method. Then, we applied this method to determine the photothermal conversion efficiency of graphene and graphene oxide nanosheets dispersions in dimethylformamide and water, respectively, finding out that they are excellent photothermal agents with photothermal conversion efficiencies among the highest reported up to now. We also analyzed the influence of the concentration of the materials, and the wavelength and power of irradiation in the temperature increase that can be achieved with them, finding out that they can be used, for instance, in cancer treatment through hyperthermia procedures with reduced costs when compared to other photothermal agents.
Published: 2016

20. Novel low-cost, compact and fast signal processing sensor for ratiometric luminescent nanothermometry

Author: Física i Cristal·lografia de Nanomaterials, Física i Cristal.lografia de Materials, Química Física i Inorgànica, Universitat Rovira i Virgili, J.J. Carvajal ; Ol. A. Savchuk; J. Massons; C. Cascales; M. Aguiló; F. Díaz, Física i Cristal·lografia de Nanomaterials, Física i Cristal.lografia de Materials, Química Física i Inorgànica, Universitat Rovira i Virgili, and J.J. Carvajal ; Ol. A. Savchuk; J. Massons; C. Cascales; M. Aguiló; F. Díaz
Abstract: DOI: 10.1016/j.sna.2016.08.031 URL: http://www.sciencedirect.com/science/article/pii/S0924424716304162 Filiació URV: SI, We developed a new compact, low-cost and non-invasive temperature sensor based on a ratiometric luminescence technique. The setup included a commercial digital color sensor, which collects simultaneously signals in the blue, green and red regions of the electromagnetic spectrum, usually used to assess the quality of computer screens and used for the first time here as a sensor for luminescent thermometry, coupled to an optical system that focuses an excitation laser beam onto luminescent nanoparticles emitting at least in two of these electromagnetic regions, which simplifies considerably the design, alignment and measurement procedures of setups used up to now for the same purpose. The same optical system collects the emission arising from the luminescent nanoparticles and directs it towards the digital color sensor through a dichroic mirror. We probed the potentiality of this setup for luminescence thermometry in the biological range of temperatures using Er,Yb:NaYF4, and up to 673 K for microelectronic applications using Tm,Yb:GdVO4 up-converting nanoparticles. The thermal sensitivity obtained in both cases is similar to that previously reported for the same kinds of nanoparticles using conventional systems. This validates our setup for temperature measurements. Also, we developed new flexible and transparent polymer composites, in which we embedded upconversion luminescent nanoparticles of Er,Yb:NaYF4 in PDMS, a standard polymer for microfluidic devices used for biomedical studies, which allow fabricating thermometric microfluidic chips in which temperature can be determined using our setup. The thermal sensitivity for these composites is slightly
Published: 2016

21. Charge Self-compensation in the Nonlinear Optical Crystals Rb0.855Ti0.955Nb0.045OPO4 and RbTi0.927Nb0.056Er0.017OPO4

Author: J. Massons, Jna. Gavaldà, J. J. Carvajal, X. Solans, José Luis García-Muñoz, Magdalena Aguiló, and F. Díaz, and R. Sole
Subjects: Diffraction, Chemistry, General Chemical Engineering, Doping, Inorganic chemistry, Second-harmonic generation, Nonlinear optics, General Chemistry, Crystal structure, Crystal, Crystallography, Octahedron, Materials Chemistry, Absorption (electromagnetic radiation)
Abstract: We used X-ray single-crystal diffraction (XRD) and high-resolution neutron powder diffraction (NPD) and performed second-harmonic generation (SHG) measurements to investigate the structural details and nonlinear optical (NLO) properties of Rb0.855Ti0.955Nb0.045OPO4 and RbTi0.927Nb0.056Er0.017OPO4. We studied in detail the distribution of Nb5+ and Er3+ doping cations among the different types of TiO6 octahedra in the structure. We found that Nb cations exclusively occupied Ti(1) sites, but we did not observe a preferential occupation of the octahedra by Er. Our results established that, in Rb0.855Ti0.955Nb0.045OPO4, the substitution of Ti4+ by Nb5+ centers was compensated by the creation of Rb+ vacancies. The SHG measurements in these crystals reveal that these crystals are excellent nonlinear optical materials and that the absorption of the generated green light by Er3+ in the RbTi0.927Nb0.056Er0.017OPO4 crystal is negligible.
Published: 2003
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22. Growth and Structural Characterization of Rb2Ti1.01Er0.99(PO4)3

Author: J. J. Carvajal, A. Aznar, R. Sole, Magdalena Aguiló, J. Massons, Francesc Díaz, Jna. Gavalda, and Xavier Solans
Subjects: Lanthanide, Materials science, General Chemical Engineering, Potassium, Analytical chemistry, chemistry.chemical_element, General Chemistry, Crystal structure, Ion, Crystal, chemistry.chemical_compound, chemistry, Potassium phosphate, Materials Chemistry, Chemical composition, Solid solution
Abstract: We successfully grew langbeinite-type structures containing Ti 4+ and Ln 3+ ions as M 2 Ti 2-x Ln x (PO 4 ) 3 crystals (M = K + or Rb + and Ln = Er 3+ or Yb 3+ ) by high-temperature-solution methods. We took accurate composition measurements of these crystals, paying special attention to the lanthanide contents. We resolved the structure of the Rb 2 Ti 1.01 Er 0.99 (PO 4 ) 3 crystal and studied the evolution of this structure with the temperature. We found that this compound decomposed at 1323 K. We made a preliminary study to check the nonlinear optical properties of these materials, showing that the second-harmonic generation efficiency of the Rb 2 Ti 1.01 Er 0.99 (PO 4 ) 3 was at least similar to that of potassium dihydrogen phosphate.
Published: 2002
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23. Drift in the Meteosat-7 VIS channel calibration

Author: J. Massons, J. Grau, and R. Torres
Subjects: Calibration coefficient, Offset (computer science), General Earth and Planetary Sciences, Environmental science, Statistical analysis, Noon, Remote sensing
Abstract: This letter describes the methodology used to determine the drift in the slope and intercept value of the linear calibration coefficients of the Meteosat-7 visible sensor using the time series of data for clear-sky desert and sea areas. Statistical analysis between July 1998 and October 2001 using noon visible imagery was made. The results show that the offset of the calibration decreases throughout this period, also indicating a positive drift of about 1.9% per year in the slope of the calibration coefficient.
Published: 2002
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24. Acute Cerebrovascular Disease in Women

Author: Clara Maragall, Luis García-Eroles, Montserrat Oliveres, Adrià Arboix, Cecilia Targa, and J. Massons
Subjects: Adult, Male, medicine.medical_specialty, Sex Factors, Risk Factors, Internal medicine, Epidemiology, medicine, Humans, Prospective Studies, Registries, cardiovascular diseases, Sex Distribution, Prospective cohort study, Stroke, Aged, Aged, 80 and over, Univariate analysis, business.industry, Atrial fibrillation, Middle Aged, medicine.disease, Intermittent claudication, Cerebrovascular Disorders, Logistic Models, Neurology, Heart failure, Physical therapy, Female, Neurology (clinical), medicine.symptom, business, Cohort study
Abstract: In 2,000 consecutive stroke patients collected in a prospective hospital-based stroke registry over a 10-year period, we assessed whether stroke in men and women was different in respect to vascular risk factors, clinical features and natural history. The frequency of the different variable in men and women was analyzed by means of univariate analysis and logistic regression models. Women accounted for 48% of the study population (n = 967) and were older than men (mean age 75 vs. 69 years, p < 0.001). In the age group of 85 years or older, stroke was more frequent in women than in men (69.8 vs. 30.2%, p < 0.001). Women showed a higher frequency of cardioembolic infarction and a lower occurrence of lacunar infarction and stroke of undetermined cause than men. In-hospital mortality (17.4 vs. 13.3%) and length of hospital stay (19.6 vs. 16.7 days) was significantly higher (p < 0.001) in women than in men. In the model based on demographic variables and cardiovascular risk factors, obesity, heart failure, atrial fibrillation and age were significant predictors of stroke in women, while intermittent claudication, ischemic heart disease, chronic obstructive pulmonary disease, cigarette smoking and alcohol abuse were predictors in male sex. Hypertension and limb weakness were predictors for stroke in women, and absence of neurological deficit at hospital discharge, lacunar syndrome and ataxia were predictors in men in the models based on all variables. Women differ from men in the distribution of risk factors and stroke subtype, stroke severity and outcome. Differences in stroke pathology and/or differences in functional anatomy or plasticity of the brain between sexes may account for these findings.
Published: 2001
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25. Different vascular risk factor profiles in ischemic stroke subtypes: a study fromthe 'Sagrat Cor Hospital of Barcelona Stroke Registry'

Author: Montserrat Oliveres, C Morcillo, Cecilia Targa, Adrià Arboix, L García-Eroles, and J. Massons
Subjects: medicine.medical_specialty, Lacunar stroke, Cerebral infarction, business.industry, Vascular disease, Atrial fibrillation, General Medicine, Odds ratio, medicine.disease, Surgery, Neurology, Internal medicine, Diabetes mellitus, medicine, Cardiology, cardiovascular diseases, Neurology (clinical), Risk factor, business, Stroke
Abstract: Objectives To characterize the vascular risk factor profiles in different subtypes of ischemic stroke. Material and methods The study population consisted of 1473 consecutive ischemic stroke patients collected in a prospective stroke registry. The prevalence of vascular risk factors in each stroke subtype was analyzed independently and in comparison with other subtypes of stroke pooled together by means of univariate analysis and logistic regression models. Results Hypertension was present in 52% of patients followed by atrial fibrillation in 27% and diabetes in 20%. The pattern of risk factors associated with atherothrombotic stroke included chronic obstructive pulmonary disease (COPD) (odds ratio [OR] = 2.63), hypertension (OR = 2.55), diabetes (OR = 2.26), transient ischemic attack (OR = 1.61), and age (OR = 1.03). Previous cerebral hemorrhage (OR = 4.72), hypertension (OR = 4.29), obesity (OR = 2.45), and diabetes (OR = 1.73) were strong predictors of lacunar stroke. In the case of cardioembolic stroke, atrial fibrillation (OR = 22.24), valvular heart disease (OR = 10.97), and female gender (OR = 1.66) occurred more frequently among patients with this stroke subtype than among the other stroke subtypes combined. Conclusion Different potentially modifiable vascular risk factor profiles were identified for each subtype of ischemic stroke, particularly COPD in the case of atherothrombotic stroke and previous cerebral hemorrhage and hypertension in the case of lacunar infarction.
Published: 2000
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26. Lacunar infarcts in patients aged 85 years and older

Author: Montserrat Oliveres, J. Massons, Cecilia Targa, Adrià Arboix, and L García-Eroles
Subjects: medicine.medical_specialty, Heart disease, Cerebral infarction, Vascular disease, business.industry, Atrial fibrillation, General Medicine, medicine.disease, nervous system diseases, Surgery, Central nervous system disease, Neurology, Diabetes mellitus, Internal medicine, Epidemiology, medicine, Cardiology, cardiovascular diseases, Neurology (clinical), Prospective cohort study, business
Abstract: Objectives To compare the occurrence of lacunar infarcts in the very elderly ( > or = 85 years of age) and in patients below 85. Material and methods Data of 374 consecutive patients with lacunar infarcts were collected from a prospective hospital-based stroke registry in which 2000 patients are included. Distinctive clinical features of lacunar infarct in the very elderly were assessed by multiple logistic regression analysis. Results Lacunar infarcts were diagnosed in 39 (15%) of the 262 very elderly patients of our stroke registry. Lacunar infarcts in the very elderly accounted for 10.5% of all lacunes. There was no statistical difference in the occurrence of different lacunar syndromes between the very elderly patients and patients below 85. However, the very old group with lacunar infarct showed a significantly higher proportion of the female sex (56.4% vs 37.3%) and history of atrial fibrillation (28.2% vs 8.7%), chronic renal disease and pathologic condition and a significantly lower proportion of hypertension (61.5% vs 77.3%), diabetes (7.7%) vs 28.4%), ischemic heart disease, hypercholesterolemia, and absence of neurologic deficit at discharge from the hospital than patients below 85. After multivariate analysis only atrial fibrillation (OR = 3.77), female gender (OR =2.52), hypertension (OR = 0.35), and diabetes (OR = 0.16) were independent clinical factors for developing lacunar infarction in the very elderly. Conclusion In the very elderly the higher occurrence of atrial fibrillation, the lower prevalence of hypertension and diabetes, and the greater focal neurological impairment suggest that the cardioembolic pathogenetic mechanisms may be more frequent than generally established for lacunar infarcts in stroke patients.
Published: 2000
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27. Neuroprotection as Initial Therapy in Acute Stroke

Author: Carmine Marini, M. Di Napoli, Adrià Arboix, Montserrat Oliveres, Henry J.M. Barnett, Stephen F. Hobbiger, J. Donald Easton, Michael Eliasziw, Bernd Eckert, Joanna M. Wardlaw, Martin W. Lunnon, J. David Spence, Mannheim M. Hennerici, J. Lodder, Jerry A. Katzmann, L García-Eroles, Dean M. Wingerchuk, Kennedy R. Lees, Jimmy R. Fulgham, Fons Kessels, Wouter I. Schievink, J. Massons, Steven J. C. Hamilton, Lausanne J. Bogousslavsky, Benedikt Schoser, Keith W. Muir, M. Schmal, Antonio Carolei, Carlos Cantú, Jose Luis Soto, G. Alistair Lammie, Fernando Barinagarrementeria, Eelco F. M. Wijdicks, Veit U. Becker, Jorge Villarreal, David G. Piepgras, Tony Pierre, Hermann Zeumer, José M. Ferro, A. Thie, and Martin Dennis
Subjects: medicine.medical_specialty, Pharmaco economics, Hemispheric stroke, business.industry, 030204 cardiovascular system & hematology, Neuroprotection, 3. Good health, law.invention, Clinical Practice, 03 medical and health sciences, 0302 clinical medicine, Neurology, Randomized controlled trial, law, Ischaemic stroke, medicine, Physical therapy, Neurology (clinical), Cardiology and Cardiovascular Medicine, Intensive care medicine, business, Initial therapy, 030217 neurology & neurosurgery, Acute stroke
Abstract: Although a considerable body of scientific data is now available on neuroprotection in acute ischaemic stroke, this field is not yet established in clinical practice. At its third meeting, the European Ad Hoc Consensus Group considered the potential for neuroprotection in acute stroke and the practical problems attendant on the existence of a very limited therapeutic window before irreversible brain damage occurs, and came to the following conclusions. Neuroprotectants in Clinical Development: Convincing clinical evidence for an efficacious neuroprotective treatment in acute stroke is still required. Caution should be exercised in interpreting and extrapolating experimental results to stroke patients, who are a very heterogeneous group. The limitations of the time windows and the outcome measures chosen in trials of acute stroke therapy have an important influence on the results. The overall distribution of functional outcomes provides more statistical information than the proportion above a threshold outcome value. Neurological outcome should also be assessed. Neuroprotectants should not be tested clinically in phase II or phase III trials in a time window that exceeds those determined in experimental studies. The harmful effects of a drug in humans may override its neuroprotective potential determined in animals. Agents that act at several different levels in the ischaemic cascade may be more effective than those with a single mechanism of action. Current In-Hospital Management of Acute Stroke: The four major physiological variables that must be monitored and managed are blood pressure, arterial blood gas levels, body temperature, and glycaemia. The effects of controlling these physiological variables have not been studied in prospective trials, though they may all contribute to the outcome of acute ischaemic stroke and affect the duration of the therapeutic window. Optimal physiological parameters are inherently neuroprotective. Trials of new agents for the treatment of acute stroke should aim to maintain these physiological variables as close to normal as possible, and certainly within strictly defined limits. The Place of Neuroprotectants in Acute Stroke Management: Stroke patients are a very heterogeneous group with respect to stroke mechanisms and severity, general condition, age and co-morbidities. At the present time, the only firm guideline than can be proposed for patient selection is the need for early admission to enable neuroprotectant and/or thrombolytic treatment to be started as soon as possible within the therapeutic window. The severity of potential side-effects will largely determine who should assess a patient with suspected stroke and initiate treatment. There is little information on which to base the duration of neuroprotectant therapy, and more experimental data are needed. Even if prehospital treatment proves to be feasible, it should not replace comprehensive stroke management in a specialist hospital unit. Clinical trials of neuroprotectants should only be performed in stroke units. The combined approach of restoring blood flow and providing neuroprotection may be the most productive in human stroke, but current clinical trial design will have to change in order to test combination therapy. Important side-effects are those that interfere with any possible benefit or increase mortality. Pharmaco-Economic Aspects of Neuroprotectants: The early increase in hospital costs associated with neuroprotectant therapy may be balanced by the shorter length of hospital stay and lesser degree of disability of the surviving patients. The overall direct financial cost is highly dependent on the number of patients eligible for neuroprotectant therapy, which is itself dependent on the length of the therapeutic window and the severity of potential side-effects. A treatment that achieves a good functional outcome is the most cost-effective approach.
Published: 1998
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28. Predictive Clinical Factors of In-Hospital Mortality in 231 Consecutive Patients with Cardioembolic Cerebral Infarction

Author: L García-Eroles, Montserrat Oliveres, Adrià Arboix, and J. Massons
Subjects: Male, medicine.medical_specialty, Multivariate analysis, Heart Diseases, Level of consciousness, Recurrence, Risk Factors, Internal medicine, medicine, Humans, Hospital Mortality, Prospective Studies, Registries, Prospective cohort study, Stroke, business.industry, Cerebral infarction, Regression analysis, Cerebral Infarction, Intracranial Embolism and Thrombosis, Prognosis, medicine.disease, Clinical trial, Logistic Models, Neurology, Embolism, Multivariate Analysis, Cardiology, Regression Analysis, Female, Neurology (clinical), Cardiology and Cardiovascular Medicine, business
Abstract: Cardioembolic cerebral infarction is a subtype of stroke with a high mortality. The purpose of this study was to determine predictors of in-hospital mortality in 231 consecutive patients with cardioembolic stroke by means of a multivariate analysis. Three predictive models were constructed. A first model was based on demographic, anamnestic and clinical variables collected at the bedside examination (total 8 variables). A second model was based on clinical and neuroimaging variables (total 10 variables). A third model was based on the aforementioned clinical and neuroimaging variables and the presence of early recurrent embolism (total 11 variables). Deteriorated level of consciousness, limb weakness, presence of congestive heart failure, male gender, and age appeared to be independent prognostic factors of in-hospital mortality in the predictive model based on clinical variables and in the predictive model based on clinical and neuroimaging variables. In addition to these variables, early recurrent embolization was selected in the third predictive model. In the first two models, setting a cut-off point of 0.50 for predicting vital status at hospital discharge resulted in a sensitivity of 60%, a specificity of 89% and a total correct classification of 81%. The corresponding values of the third model were 62, 89 and 81%, respectively. These data may help clinicians to establish an early prognosis of this stroke subtype more accurately as well as to allocate patients with cardioembolic stroke in clinical trials correctly.
Published: 1998
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29. Relevance of early seizures for in-hospital mortality in acute cerebrovascular disease

Author: J. Massons, Montserrat Oliveres, Adrià Arboix, García L, and Emili Comes
Subjects: Male, medicine.medical_specialty, Time Factors, Neurology, Epilepsy, Seizures, Internal medicine, medicine, Humans, Prospective Studies, Prospective cohort study, Stroke, Aged, Aged, 80 and over, Univariate analysis, business.industry, Mortality rate, Odds ratio, Middle Aged, medicine.disease, Confidence interval, Surgery, Hospitalization, Cerebrovascular Disorders, Acute Disease, Female, Neurology (clinical), business
Abstract: Background: We studied the influence of early poststroke seizures (within the first 48 hours of onset of a first stroke or transient ischemic attack) on in-hospital mortality in 1,099 consecutive patients collected in a prospective stroke registry. Methods: Differences in the frequency of demographic characteristics, clinical events, and outcome between patients with and those without epileptic seizures were assessed. To determine the independent predictive value of early seizures on in-hospital mortality, variables related to vital status at discharge (alive, dead) in the univariate analysis, plus age, were studied in two multiple linear regression models. The first predictive model was based on demographic, anamnestic, and clinical variables with a total of 13 variables, and the second model was based on clinical and neuroimaging variables with a total of 16 variables. Results: A total of 27 patients (2.5%) had epileptic seizures during the first 48 hours of stroke. Advanced age, confusional syndrome, hemorrhagic stroke, large lesions, involvement of parietal and temporal lobes, and occurrence of neurologic and medical complications were significantly more frequent in seizure patients than in nonseizure patients. Overall in-hospital mortality rate was 33.3% in the seizure group and 14.2% in the nonseizure group (p = 0.02). The presence of early seizures was a significant predictive variable both in the model based on clinical variables (odds ratio [OR], 5.5; 95% confidence interval [CI], 1.81 to 16.72) and in the model based on clinical and neuroimaging variables (OR, 6.1; 95% CI, 2.13 to 17.93). Conclusions: Seizures at the onset of a first-ever stroke is an independent prognostic factor for in-hospital mortality. Patients with the highest risk of developing epileptic seizures-aged persons with a large hemorrhagic infarction of a parietal lobe-may be candidates to be treated prophylactically against seizures for a few days. NEUROLOGY 1996;47: 1429-1435
Published: 1996
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30. Automatic classification of VIS-IR METEOSAT images

Author: J. Massons, D. Domingo, and J. Grau
Subjects: Unix, Statistical distance, Computer science, ComputingMethodologies_IMAGEPROCESSINGANDCOMPUTERVISION, Geostationary orbit, Data mining, Computers in Earth Sciences, computer.software_genre, Partition (database), computer, Spatial analysis, Information Systems, Image (mathematics)
Abstract: This paper analyzes the classification of meteorological images provided by geostationary satellites. Classified datasets are used often to gather spatial statistics efficiently from large areas and to simplify the analysis of complex images. The algorithm uses a modified version of k -means standard method to classify the images and statistical distance between classes in order to reduce and optimize the final partition to be obtained. The method is checked for several meteorological situations, both in summer and in winter. The program was written in C and was tested both in UNIX work stations and in personal computers. In all situations the computer time required to make the classification can be considered acceptable. The methodology presented can be applied directly to the analysis of meteorological images, providing a tool for interpreting complex scenes. Additionally, minor changes introduced in the algorithm allow classification of any image provided that two (or more) channels of the same scene are available.
Published: 1996
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31. Pollutant transport in coastal areas using a Lagrangian model

Author: J. Camps, M. R. Soler, and J. Massons
Subjects: Pollutant, symbols.namesake, Meteorology, Lagrangian model, Dispersion (optics), symbols, Pollutant transport, General Earth and Planetary Sciences, Environmental science, Model system, Terrain, Physics::Atmospheric and Oceanic Physics, Lagrangian
Abstract: A three-dimensional meteorological model and a Lagrangian particle dispersion model are used to study the effects of a uniform large-scale wind on the dispersion of a non-reactive pollutant in a coastal region with complex terrain. Simulations are carried out both with and without a background wind. A comparison between model results and measured data indicates that the coupled model system provides a useful mechanism for analyzing pollutant dispersion in coastal regions.
Published: 1996
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32. Abstracts (Session / Workshop / Poster Session) (Part 2 of 2)

Author: T. Hemanth Rao, Antoine M. Hakim, J. Donald Easton, Montserrat Oliveres, John Bamford, Gudrun Boysen, Didier Chavot, Richard B. Libman, W. Pryse-Phillips, Bo Norrving, Hans Pedersen, Karsten Overgaard, Laurent Tatu, Lucien Rumbach, Thierry Moulin, Elzbieta Wirkowski, Adrià Arboix, Rainald Schmidt-Kastner, I.B. Squire, Margareta Samuelsson, K.R. Lees, Graeme J. Hankey, J. Massons, Dan Lindell, rie Martin, Per Meden, Norbert Heye, Luis García-Eroles, A. Kertesz, Mahendra Patel, and Kazushi Matsushima
Subjects: Medical education, Neurology, business.industry, Medicine, Neurology (clinical), Session (computer science), Cardiology and Cardiovascular Medicine, business
Published: 1996
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33. Abstracts (Session / Workshop / Poster Session) (Part 1 of 2)

Author: Per Meden, A. Kertesz, Karsten Overgaard, Gudrun Boysen, W. Pryse-Phillips, Didier Chavot, Margareta Samuelsson, J. Donald Easton, K.R. Lees, John Bamford, Laurent Tatu, Bo Norrving, Elzbieta Wirkowski, Lucien Rumbach, T. Hemanth Rao, I.B. Squire, Antoine M. Hakim, Thierry Moulin, Hans Pedersen, Richard B. Libman, Adrià Arboix, Rainald Schmidt-Kastner, Graeme J. Hankey, rie Martin, Montserrat Oliveres, Mahendra Patel, Kazushi Matsushima, J. Massons, Dan Lindell, Luis García-Eroles, and Norbert Heye
Subjects: Medical education, Neurology, business.industry, Medicine, Neurology (clinical), Session (computer science), Cardiology and Cardiovascular Medicine, business
Published: 1996
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34. 4th International Symposium on Thrombolytic Therapy in Acute Ischemic Stroke

Author: Norbert Heye, Hans Pedersen, rie Martin, Elzbieta Wirkowski, Gudrun Boysen, Didier Chavot, Antoine M. Hakim, Rainald Schmidt-Kastner, John Bamford, Karsten Overgaard, Margareta Samuelsson, Per Meden, J. Massons, Dan Lindell, Bo Norrving, Mahendra Patel, W. Pryse-Phillips, I.B. Squire, Luis García-Eroles, K.R. Lees, Kazushi Matsushima, Graeme J. Hankey, A. Kertesz, Montserrat Oliveres, Adrià Arboix, Richard B. Libman, T. Hemanth Rao, Laurent Tatu, J. Donald Easton, Lucien Rumbach, and Thierry Moulin
Subjects: medicine.medical_specialty, Neurology, business.industry, Emergency medicine, medicine, Physical therapy, Neurology (clinical), Cardiology and Cardiovascular Medicine, business, Acute ischemic stroke
Published: 1996
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35. Movement disorders in ischemic stroke: clinical study of 22 patients

Author: J.L. Martí-Vilalta, L. D'Olhaberriague, J. Massons, A. Moral, and Adrià Arboix
Subjects: medicine.medical_specialty, Movement disorders, Cerebral infarction, business.industry, Thalamus, Posterior cerebral artery, medicine.disease, Surgery, Lesion, Neurology, Neuroimaging, medicine.artery, Internal medicine, Middle cerebral artery, Etiology, medicine, Cardiology, cardiovascular diseases, Neurology (clinical), medicine.symptom, business
Abstract: Movement disorders (bemichorea-hemiballismus, hemidystonia and isolated tremor) are an uncommon clinical manifestation in ischemic stroke (IS), and their anatomical basis is poorly understood. We analyzed the clinical and neuroimaging characteristics of 22 consecutive patients who bad movement disorders associated with cerebral infarction (MDCI), studied at four institutions over 8 years. In one institution (from the La Alianza-Central Hospital of Barcelona Stroke Registry) nine patients with MDCI were identified among 1099 consecutive first ever stroke patients (0.8%) (908 with IS, 1%). Fifteen out of 22 patients (68%) had hemichorea-hemiballismus, five (23%) hemidystonia and two (9%) isolated tremor. MDCI were more often left sided (n = 15, 68%), being bilateral in one patient (4.5%). A lesion was found on neuroimaging (CT and/or MRI) in 15 patients (68%), in the territory of the posterior cerebral artery (n = 8) and middle cerebral artery (six deep and one superficial). The most commonly involved structure was the thalamus (n = 8, 36.5%). IS subtypes were; presumed lacunar infarcts in 14 patients (64%), atherothrombotic infarcts in two patients (9%), cardioembolic infarcts in two patients (9%) and infarcts of unknown etiology in four patients (18%). Hemichorea-hemiballismus was the most common type of MDCI in our study, usually being the result of a thalamic infarction. The thalamus was the most frequently damaged structure underlying all types of MDCI. There was a striking propensity of MDCI which resulted from nondominant deep hemispheric small vessel infarctions.
Published: 1995
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36. Fourth meeting of the European Neurological Society 25–29 June 1994 Barcelona, Spain

Author: H. Hattig, C. Delli Pizzi, M. C. Addonizio, Michelle Davis, A. R. Giovagnoli, L. Florensa, M. Roth, J. de Kruijk, Francisco Lacruz, Ph. Dewailly, A. Toygar, C. Avendano, P.P. De Deyn, J. F. Hurtevent, F. Lomeila, T. W. Wong, Gordon T. Plant, M. Bud, H. J. Willison, DH Miller, D. W. Langdon, R. Cioni, J. Servan, A. Kaygisiz, E. Racadot, D. B. Schens, E. Picciola, L. Falip, C. Bouchard, J. Jotova, A. Jorge-Santamaria, P. Misra, A. Dufour, C. P. Panagopoulos, A. Venneri, B. Sredni, B. Angelard, M. Janelidze, M. Carreno, J. Obenberger, J. Pouget, H. W. Moser, R. Kaufmann, J. A. Molina, D. Linden, A. Martin Urda, E. Uvestad, A. Krone, J. P. Cochin, J. Mallecourt, A. Cambon-Thomsen, K. Violleau, P. Osschmann, A. M. Durocher, E. Bussaglia, D. M. Danielle, H. Efendi, C. Van Broeckhoven, K. G. Jordan, W. Rautenberg, C. Iniguez, J. M. Delgado, Graham Watson, M. Lawden, Gareth J. Barker, K. Stiasny, James T. Becker, G. Campanella, E. Peghi, A. Poli, A. Haddad, T. Yamawaki, Giacomo P. Comi, S. Sotgiu, B. Ersmark, A. Pomes, M. Ziegler, P. Ferrante, P. Ruppi, H. KuÇukoglu, R. Bouton, U. K. Rinne, P. Vieregge, M. Dary, P. Giunti, Peter J. Goadsby, S. Jung, E. Secor, A. Steinberg, N. Vila, M. A. Hernandez, M. Cursi, A. Enqelhardt, A. Engelhardt, J. Veitch, F. Di Silverio, F. Arnaud, B. Neundörfer, R. Brucher, Dominique Caparros-Lefebvre, B. Meyer, Marianne Dieterich, M. H. Snidaro, R. Gomez, R. Cerbo, M. Ragno, J. M. Vance, S. Nemni, A. Caliskan, F. Barros, I. Velcheva, D. Ceballos-Baumann, V. Barak, A. Avila, N. Antonova, F. Resche, S. Pappata, L. Varela, S. R. Silveira Santos, A. Cammarota, L. Naccache, Y. Nara, E. Tournier-Lasserves, R. Mobner, T. Chase, A. Ensenyat, J. Ulrich, G. Giegerich, M. Rother, M. Revilla, N. Nitschke, K. Honczarenko, E. Basart Tarrats, J. Blin, B. Jacob, J. Santamaria, S. Knezevic, J. L. Castillo, M. Antem, J. Colomer, O. Busse, Didier Hannequin, S. Carrier, J. B. Ruidavets, C. Rozman, J. Bogoussslavsky, J. Pascual Calvet, E. Monros, J. M. Polo, M. Zucconl, Javier Muruzabal, R. R. Allen, R. Rivolta, K. Haugaard, A. Nespolo, K. Hoang-Xuang, G. Bussone, T. Avramidis, E. Corsini, Christiana Franke, T. Vinogradova, H. Boot, K. Vestergaard, G. H. Jansen, N. Argentino, M. Raltzig, W. Linssen, Mark B. Pepys, P. Roblot, L. Lauritzen, E. Fainardi, D. Morin, T. X. Arbizu Urdiain, J. Wollenhaupt, S. Bostantjopoulou, G. Pavesi, A. D. Forman, Giovanni Fabbrini, D. Jean, J. J. Archelos, M. I. Blanchs, M. Del Gobbo, Anna Carla Turconi, Ch. Derouesné, Elio Scarpini, A. Visbeck, P. Castejon, J. P. Renou, F. Mounier-Vehier, G. Potagas, Ch. Duyckaerts, A. Filla, R. Schneider, G. Ronen, K. Nagata, J. P. Vedel, A. Henneberg, G. van Melle, C. Baratti, H. Knott, M. C. Prevett, A. Bes, B. Metin, Jos V. Reempts, L. Martorell, Mefkure Eraksoy, H. O. Handwerker, D. S. Younger, O. Oktem, D. Frongillo, C. Soriano-Soriano, L. Niehaus, F. Zipp, A. Tartaro, S Newman, R. H. Browne, P. Davous, R. Sanchez, M. Muros, M. E. Kornhuber, A. Lavarone, M. Mohr, M. R. Garcia, S. Russell, H. Kellar-Wood, M. R. Tola, B. Ostermeyer, Ch. Tzekov, K. Sartor, E. B. Ringelstein, P. P. Gazzaniga, Paul Krack, H. Fidaner, H. Rico, T. Dbaiss, F. Alameda, E. Torchiana, L. Rumbach, I. Charques, J. M. Bogaard, C. D. Frith, L. J. Rappelle, R. Brenner, A. Joutel, K. Fuxe, G. HÄcker, M. J. Blaser, J. Valls-SolÇ, G. Ulm, M. Alberdi, A. Bock, F. W. Bertelsmann, U. Wieshmann, J. Visa, J. R. Lupski, D. D'Amico, L. M. P. Ramos, A. A. Vanderbark, R. Horn, M. Warmuth, Dietmar Kühne, Mark S. Palmer, C. Ehrenheim, E. Canga, S. Viola, O. Scarpino, P. Naldi, R. Almeida, A. A. Raymond, J. Gamez, Stephan Arnold, A. DiGiovanni, J. Dalmau, C. C. Chari, H. F. Beer, J. C. Koetsier, J. Iriarte, E. Yunis, J. Casadevall, E. Le Guern, E. Stenager, S. R. Benbadis, J. M. Warter, F. Burklin, I. Theodorou, L. Johannesen, G. A. Graveland, X. Leclerc, I. Vecchio, L. Ozelius, G. Nicoletti, R. K. Gherardi, E. Esperet, M. L. Delodovici, F. Cattin, F. Paiau, Giorgio Sacilotto, C. A. J. Broere, D. Chavdarov, J. P. Willmer, C. H. Hawkes, Th. Naegele, E. Ellie, E. Dartigues, M. J. Guardiola, S. Hesse, Z. Levic, Marco Rovaris, P. Saugeir-Veber, B. A. Yaqub, H. F. Durwen, R. Larumbe, J. Ballabrina, M. Sendtner, J. Röther, M. Horstink, C. Kluglein, M.P. Montesi, H. Apaydin, J. Montoya, E. Waubant, Ch. Verellen-Dunoulin, A. Nicolai, J. Lopez-Delval, R. Lemon, G. Cantinho, E. Granieri, A. Zeviani, Wolfgang H. Oertel, U. Ficola, V. Di Piero, V. Fragola, K. Sabev, M. V. Guitera, I. Turki, F. Bolgert, P. Ingrand, J. M. Gobernado, L. M. E. Grimaldi, S. Baybas, B. Eymard, Y. Rolland, Y. Robitaille, Ta. Pampols, P. J. Koehler, A. Carroacedo, J. Vilchez, S. Di Vittorio, I. R. Rise, T. Nagy, M. Kuffner, E. Palazzini, A. Ott, J. Pruim, T. X. Arbizu, E. Manetti, C. Cervera, S. Felber, G. Gursoy, J. Scholz, G. A. Buscaino, M. S. Chen, A. Pascual, J. Hazan, J. U. Gajda, J. G. Cea, G. Bottini, G. Damalik, F. Le Doze, G. Bonaldi, J. M. Hew, C. Messina, A. M. Kennedy, J. M. Carney, N. 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Brasic, W. Heide, I. Santilli, W. M. Korn, D. Selcuki, M. J. Barrett, D. Krieger, T. Leon, T. Houallah, M. Tournilhac, C. Nos, D. Chavot, F. Barbieri, F. J. Jimenez-Jimenez, J. Muruzabal, K. Poeck, A. Sennlaub, L. M. Iriarte, L. G. Lazzarino, C. Sanz, P. A. Fischer, S. D. Shorvon, R. Hoermann, F. Delecluse, M. Krams, O. Corabianu, F. H. Hochberg, Christopher J. Mathias, B. Debachy, C. M. Poser, L. Delodovici, A. Jimenez-Escrig, F. Baruzzi, F. Godenberg, D. Cucinotta, P. J. Garcia Ruiz, K. Maier-Hauff, P. R. Bar, R. Mezt, R. Jochens, S. Karakaneva, C. Roberti, E. Caballero, Joseph E. Parisi, M. Zamboni, T. Lacasa, B. Baklan, J. C. Gautier, J. A. Martinez-Matos, W. Pollmann, G. Thomas, L. Verze, E. Chleide, R. Alvarez Sala, I. Noel, E. Albuisson, O. Kastrup, S. I. Rapoport, H. J. Braune, H. Lörler, M. Le Merrer, A. Biraben, S. Soler, S. J. Taagholt, U. Meyding-Lamadé, K. Bleasdale-Barr, Isabella Moroni, Y. Campos, J. Matias-Guiu, G. Edan, M. G. Bousser, John B. Clark, J. Garcia de Yebenes, N. K. Olsen, P. Hitzenberger, S. Einius, Aj Thompson, Ch. J. Vecht, T. Crepin-Leblond, Klaus L. Leenders, A. Di Muzio, L. Georgieva, René Spiegel, K. Sabey, D. Ménégalli, J. Meulstee, U. Liszka, P. Giral, C. Sunol, J. M. Espadaler, A. D. Crockar, K. Varli, G. Giraud, P. J. Hülser, A. Benazzouz, A. Reggio, M. Salvatore, K. Genc, M. Kushnir, S. Barbieri, J. Ph. Azulay, M. Gianelli, N. Bathien, A. AlMemar, F. Hentati, I. Ragueneau, F. Chiarotti, R. C. F. Smits, A. K. Asbury, F. Lacruz, B. Muller, Alan J. Thompson, Gordon Smith, K. Schmidt, C. Daems Monpeun, Juergen Weber, A. Arboix, G. R. Fink, A. M. Cobo, M. Ait Kaci Ahmed, E. Gencheva, Israel-Biet, G. Schlaug, P. De Jonghe, Philip Scheltens, K. Toyka, P. Gonzalez-Porque, A. Cila, J. M. Fernandez, P. Augustin, J. Siclia, S. Medaglini, D. E. Ziogas, A. Feve, L. Kater, G. J. E. Rinkel, D. Leppert, Rüdiger J. Seitz, S. Ried, C. Turc-Carel, G. Smeyers, F. Godinho, M. Czygan, M. Rijntjes, E. Aversa, M. Frigo, Leif Østergaard, J. L. Munoz Blanco, A. Cruz-Matinez, J. De Reuck, C. Theillet, T. Barroso, V. Oikonen, Florence Lebert, M. Kilinc, C. Cordon-Cardon, G. Stoll, E. Thiery, F. Pulcinelli, J. Solski, M. Schmiegelow, L. J. Polman, P. Fernandez-Calle, C. Wikkelso, M. Ben Hamida, M. Laska, E. Kott, W. Sulkowski, C. Lucas, N. M. Bornstein, D. Schmitz, M. W. Lammers, A. de Louw, R. J. S. Wise, P. A. van Darn, C. Antozzi, P. Villanueva, P. H. E. Hilkens, C. Constantin, W. Ricart, A. Wolf, M. Gamba, P. Maguire, Alessandro Padovani, B. M. Patten, Marie Sarazin, H. Ackermann, L. Durelli, S. Timsit, Sebastian Jander, B. W. Scheithauer, G. Demir, J. P. Neau, P. Barbanti, A. Brand, N. AraÇ, V. Fischer-Gagnepain, R. Marchioli, G. Serratrice, C. Maugard-Louboutin, G. T. Spencer, D. Lücke, G. Mainardi, K. Harmant Van Rijckevorsel, G. B. Creel, R. Manzanares, Francesco Fortunato, A. May, J. Workman, K. Johkura, E. Fernandez, Carlo Colosimo, L. Calliauw, L. Bet, Félix F. Cruz-Sánchez, M. Dhib, H. Meinardi, F. Carrara, J. Kuehnen, C. Peiro, H. Lassmann, K. Skovgaard Olsen, A. McDonald, L. Sciulli, A. Cobo, A. Monticelli, B. Conrad, J. Bagunya, J. Benitez, V. Desnizza, B. Dupont, O. Delrieu, D. Moraes, J. J. Heimans, F. Garcia Rio, M. Matsumto, A. Fernandez, R. Nermni, R. Chalmers, M. J. Marchau, F. Aguado, P. Velupillai, P. J. Martin, P. Tassan, V. Demarin, A. Engelien, T. Gerriets, Comar, J. L. Carrasco, J. P. Pruvo, A. Lopez de Munain, D. Pavitt, J. Alarcon, Chris H. Polman, B. Guldin, N. Yeni, Hartmut Brückmann, N. Wilczak, H. Szwed, R. Causaran, G. Kyriazis, M. E. Westarp, M. Gasparini, N. Pecora, J. M. Roda, E. Lang, V. Scaioli, David R. Fish, D. Caputo, O. Gratzl, R. Mercelis, A. Perretti, G. Steimetz, I. Link, C. Rigoletto, A. Catafau, G. Lucotte, M. Buti, G. Fagiolari, A. Piqueras, C. Godinot, J. C. Meurice, Erodriguez J. Dominigo, F. Lionnet, H. Grzelec, David J. Brooks, P. M. G. Munro, F. X. Weilbach, M. Maiwald, W. Split, B. Widjaja-Cramer, V. Ozturk, J. Colas, E. Brizioli, J. Calleja, L. Publio, M. Desi, R. Soffietti, P. Cortinovis-Tourniaire, E. F. Gonano, G. Cavaletti, S. Uselli, K. Westerlind, H. Betuel, C. O. Dhiver, H. Guggenheim, M. Hamon, R. Fazio, P. Lehikoinen, A. Esser, B. Sadzot, G. Fink, Angelo Antonini, D. Bendahan, V. Di Carlo, G. Galardi, A. F. Boller, M. Aksenova, Del Fiore, V. de la Sayette, H. Chabriat, A. Nicoletti, A. Dilouya, M. L. Harpin, E. Rouillet, J. Stam, A. Wolters, M. R. Delgado, Eduardo Tolosa, G. Said, A. J. Lees, L. Rinaldi, A. Schulze-Bonhage, MA Ron, C. Lefebvre, E. W. Radü, R. Alvarez, M. L. Bots, P. Reganati, S. Palazzi, A. Poggi, N. J. Scolding, V. Sazdovitch, T. Moreau, E. Maes, M. A. Estelies, P. Petkova, Jose-Felix Marti-Masso, G De La Meilleure, N. Mullatti, M. Rodegher, N. C. Notermans, T. A. T. Warner, S. Aktan, J. P. Louboutin, L. Volpe, C. Scheidt, W. Aust, C. M. Wiles, U. Schneider, S. K. Braekken, W. R. Willems, K. Usuku, Peter M. Rothwell, C. Talamon, M. L. Sacchetti, A. Codina, M. H. Marion, A. Santoro, J. Roda, A. Bordoni, D. J. Taylor, S. Ertas, H. H. Emmen, J. Vichez, V. BesanÇon, R. E. Passingham, M. L. Malosio, A. Vérier, M. Bamberg, A. W. Hansen, E. Mostacero, G. Gaudriault, Marie Vidailhet, B. Birebent, K. Strijckmans, F. Giannini, T. Kammer, I. Araujo, J. Nowicki, E. Nikolov, A. Hutzelmann, R. Gherardi, J. Verroust, L. Austoni, A. Scheller, A. Vazquez, S. Matheron, H. Holthausen, J. M. Gerard, M. Bataillard, S. Dethy, V. H. Patterson, V. Ivanez, N. P. Hirsch, F. Ozer, M. Sutter, C. Jacomet, M. Mora, Bruno Colombo, A. Sarropoulos, T. H. Papapetropoulos, M. Schwarz, D. S. Dinner, N. Acarin, B. Iandolo, J. O. Riis, P. R. J. Barnes, F. Taroni, J. Kazenwadel, L. Torre, A. Lugaresi, I. L. Henriques, S. Pauli, S. Alfonso, Pedro Quesada, A. S. T. Planting, J. M. Castilla, Thomas Gasser, M. Van der Linden, A. Alfaro, E. Nobile-Orazio, G. Popova, W. Vaalburg, F. G. A. van der Mech, L. Williams, F. Medina, J. P. Vernant, J. Yaouanq, B. Storch-Hagenlocher, A. Potemkowski, R. Riva, M. H. Mahagne, M. Ozturk, Ve. Drory, N. Konic, C. Jungreis, A. Pou Serradell, J. L. Gauvrit, G. J. Chelune, S. Hermandez, T. Dingus, L. Hewer, Ch. Koch, M. N. Metz-Lutz, G. Parlato, M. Sinaki, Charles Pierrot-Deseilligny, H. C. Diener, J. Broeckx, J. Weill-Fulazza, M. L. Villar, M. Rizzo, O. Ganslandt, C. Duran, N. A. Fletcher, G. Di Giovacchino, Susan T. Iannaccone, C. Kolig, N. Fabre, H. A. Crockard, Rita Bella, M. Tazir, E. Papagiannuli, K. Overgaard, Emma Ciafaloni, I. Lorenzetti, F. Viader, P. A. H. Millac, I. Montiel, L. H. Visser, M. Palomar, P. L. Murgia, H. Pedersen, Rafael Blesa, S. Seddigh, W. O. Renier, I. Lemahieu, H. M. L. Jansen, L. Rosin, J. Galofre, K. Mattos, M. Pondal, G. M. Hadjigeorgiou, D. Francis, L. Cantin, D. Stegeman, M. Rango, A. B. M. F. Karim, S. Schraff, B. Castellotti, I. Iriarte, E. Laborde, T. J. Tjan, R. Mutani, D. Toni, B. Bergaasco, J. G. Young, C. Klotzsch, A. Zincone, X. Ducrocq, M. Uchuya, O. J. Kolar, A. Quattrone, T. Bauermann, Nereo Bresolin, J. Vallée, B. C. Jacobs, A. Campos, Werner Poewe, J. A. Villanueva, A. W. Kornhuber, A. Malafosse, E. Diez-Tejedor, G. Jungreia, M. J. A. Puchner, A. Komiyama, O. Saribas, V. Volpini, L. Geremia, S. Bressi, A. Nibbio, Timothy E. Bates, T. z. Tzonev, E. Ideman, G. A. Damlacik, G. Martino, G. Crepaldi, T. Martino, Kjell Någren, E. Idiman, D. Samuel, J. M. Perez Trullen, Y. van der Graaf, J. O. Thorell, M. J. M. Dupuis, E. Sieber, R. D'Alessandro, C. Cazzaniga, J. Faiss, A. Tanguy, A. Schick, I. Hoksergen, A. Cardozo, R. Shakarishvili, G. K. Wennlng, J. L. Marti-Vilalta, J. Weissenbach, I. L. Simone, Amalia C. Bruni, Darius J. Adams, C. Weiller, A. Pietrangeli, F. Croria, C. Vigo-Pelfrey, Patricia Limousin, A. Ducros, G. Conti, O. Lindvall, E. Richter, M. Zuffi, A. Nappo, T. Riise, J. Wijdenes, M. J. Fernandez, J. Rosell, P. Vermersh, S. Servidei, M. S. C. Verdugo, F. Gouttiere, W. Solbach, M. Malbezin, I. S. Watanabe, A. Tumac, W. I. McDonald, D. A. Butterfield, P. P. Costa, F. deRino, F. Bamonti, J. M. Cesar, C. H. Lahoz, I. Mosely, M. Starck, M. H. Lemaitre, K. M. Stephan, S. Tex, R. Bokonjic, I. Mollee, L. Pastena, M. Gutierrez, F. Boiler, M. C. Martinez-Para, M. Velicogna, O. Obuz, A. Grinspan, M. Guarino, L. M. Cartier, E. Ruiz, D. Gambi, S. Messina, M. Villa, Michael G. Hanna, J. Valk, Leone Pascual, M. Clanet, Z. Argov, B. Ryniewicz, E. Magni, B. Berlanga, K. S. Wong, C. Gellera, C. Prevost, F. Gonzalez-Huix, R. Petraroli, J. E. G. Benedikz, I. Kojder, C. Bommelaer, L. Perusse, M. R. Bangioanni, Guy M. McKhann, A. Molina, C. Fresquet, E. Sindern, Florence Pasquier, M. J. Rosas, M. Altieri, O. Simoncini, M. Koutroumanidis, C. A. F. Tulleken, M. Dary-Auriol, S. Oueslati, H. Kruyer, I. Nishisho, C. R. Horning, A. Vital, G. V. Czettritz, J. Ph. Neau, B. Mihout, A. Ameri, M. Francis, S. Quasthoff, D. Taussig, S. Blunt, P. Valentin, C. Y. Gao, O. Heinzlef, H. d'Allens, C. Coudero, M. Erfas, G. Borghero, P. J. Modrego Pardo, M. C. Patrosso, N. L. Gershfeld, P. A. J. M. Boon, O. Sabouraud, M. Lara, J. Svennevig, G. L. Lenzi, A. Barrio, H. Villaroya, JosÇ M. Manubens, O. Boespflug-Tanguy, M. Carreras, D. A. Costiga, J. P. Breux, S. Lynn, C. Oliveras Ley, A. G. Herbaut, J. Nos, C. Tornali, Y. A. Hekster, J. L. Chopard, J. M. Manubens, P. Chemouilli, A. Jovicic, F. Dworzak, S. Smirne, S. E. Soudain, B. Gallano, D. Lubach, G. Masullo, G. Izquierdo, A. Pascual Leone Pascual, A. Sessa, V. Freitas, O. Crambes, L. Ouss, G. W. Van Dijk, P. Marchettini, P. Confalonieri, M. Donaghy, A. Munnich, M. Corbo, and M. E. L. van der Burg
Subjects: Neurology, business.industry, Media studies, Library science, Medicine, Neurology (clinical), business
Published: 1994
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37. Headache in Acute Cerebrovascular Disease: A Prospective Clinical Study in 240 Patients

Author: Titus F, J. Massons, Adrià Arboix, Montserrat Oliveres, and Arribas Mp
Subjects: business.industry, Cerebral infarction, Ischemia, General Medicine, medicine.disease, Brain ischemia, Anesthesia, Diabetes mellitus, Severity of illness, medicine, cardiovascular diseases, Neurology (clinical), Headaches, medicine.symptom, business, Prospective cohort study, Stroke
Abstract: To evaluate the clinical features of headache in stroke, a prospective study was carried out in 240 consecutive patients with acute stroke who had intact expressive function. Headache occurred in 38%: 32% of 195 patients with ischemic stroke and 64.5% of 45 patients with hemorrhagic stroke ( p < 0.0001). Headache patients were younger (mean age 62 ± 15 vs 67 ± 11.5 years) than non-headache patients ( p < 0.01). A history of previous vascular or tension-type headache was found in 40.5% of the headache group, but in only 23.5% of the non-headache group ( p < 0.01). In ischemic stroke, headache was observed in 41% of thrombotic infarcts, in 39% of cardioembolic infarcts, in 23% of lacunar infarcts and in 26% of TIA. Headache was significantly more common in thrombotic than lacunar infarcts ( p < 0.05). In hemorrhagic stroke, headache was observed in all subarachnoid hemorrhages and in 58% of intraparenchymal hemorrhages. In ischemic stroke, the mean duration of the headache was 25 ± 28 h and in hemorrhagic stroke 64.5 ± 36.5 h ( p < 0.00001). In ischemic stroke the headache was focal in 74% and mild or moderate in intensity in 74%. In hemorrhagic stroke, it was diffuse in 52% and the pain intensity was incapacitating in 70%. Headache was more common in vertebrobasilar stroke (59%), in comparison with carotid stroke (26%) or stroke of unclear vascular topography (33%) ( p < 0.00001). Fifty-six and a half percent of patients with cortical stroke had headaches, as opposed to only 26.5% of patients with subcortical stroke ( p < 0.005). Ten percent of the patients presented with sentinel headache.
Published: 1994
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38. Session 17 Ecophysiology

Author: N. Aktan, N. Palavan-Ünsal, A. V. Andonov, K. M. Georgieva, I. T. Yordanov, L. Atanasiu, E. Petcu, O. K. Atkin, N. K. Barabás, L. Erdei, J. Baumann, K. P. Bader, G. Bayçu, M. Önal, C. Bock, A. Jacob, A. Mayer, G. O. Kirst, G. Borovsky, L. Voronova, V. Voinikov, E. Borowski, L. Kozlowska, B. Botos-Bálo, Gy. Váradi, I. Happ, V. M. Busuioc, S. I. Toma, C. E. Cabeza, J. F. Ledent, S. Chamont, C. Christov, M. Boshcova, S. Furnadzieva, T. Zafirova, M. Čiamporová, V. Banásová, G. Ouzounidou, Han Clement, Philip R. Van Hasselt, L. Gara, M. C. Tullio, C. Paciolla, A. Stefani, O. Arrigoni, M. de Ramon, M. J. Reigosa, M. A. Doussi, C. A. Thanos, S. I. Fenik, T. B. Trofimyak, Ya. B. Blume, M. Fernandez-Pascual, C. Lorenzo, M. R. Felipe, F. R. Minchin, A. J. Gordon, L. A. Filonick, S. Frechilla, M. Royuela, C. Arrese-Igor, P. M. Aparicio-Tejo, R. Gabbrielli, P. Gremigni, T. Pandolfini, J. Gloser, V. Gloser, N. V. Goncharova, V. V. Sheverdov, I. V. Zhebrakova, V. P. Grakhov, V. G. Kozeko, M. Greger, E. Heyman, V. N. Grishko, L. Guglielminetti, P. Perata, A. Alpi, Yitzchak Gutterman, S. J. Honour, C. Ihle, H. Laasch, T. I. Ivanova, O. S. Yudina, A. Kacperska, C. C. Kadis, K. Georghiou, T. D. Khilko, S. V. Klimov, T. I. Trunova, L. V. Kosakivska, E. V. Maidebura, O. P. Kostyuk, A. N. Mikheev, Yu. A. Kutlakhmedov, J. I. Kozlova, V. G. Reutsky, A. P. Kravetz, Y. A. Pavlenco, M. Kubacka, F. Kühn, Vladimir V. Kuznetsov, T. Landberg, P. S. Campos, M. C. Matos, J. A. Laureano, J. R. Ramalho, M. E. Guedes, F. C. Lidon, G. D. Leina, M. Lopez-Carbonell, E. Prinsen, A. Pastor, H. Onckelen, R. Lösch, A. Zohlen, A. Gonzales, M. S. Jimenez, D. Morales, G. Aschan, C. Lütz, F. Kaiser, E. Masarovičová, A. Lux, G. Kobelová, C. Mattioni, P. V. Negru, T. N. Medvedeva, G. F. Tudorake, R. M. Newbery, R. Olah, M. Moustakas, S. Karataglis, N. Pedrol, P. Ramos, M. Peisker, I. Tichá, J. Václavík, D. Ostareck, M. Pfeffer, T. L. Pons, M. Popović, S. Kevrešan, J. Kandrač, J. Kočiš, D. Štajner, N. Petrivić, R. Kastori, L. A. Popovicheva, Y. B. Shevchenko, J. Porankiewicz, E. A. Gwóźdź, A. I. Prokhnevsky, M. V. Ruchko, B. V. Sorochinsky, A. Y. Sergeeva, R. Przymusiński, R. Rucińska, F. I. Pugnaire, P. Haase, L. D. Incoll, S. C. Clark, P. M. Pukacki, K. Radotić, S. Todorović, J. Zakrzewska, M. Jeremić, Z. Sakač, D. Panković, T. Ćupina, M. Plesničar, R. Save, C. Biel, J. Pons, J. Massons, R. Scheuerlein, S. Treml, B. Thar, U. K. Tirlapur, D. -P. Häder, J. Schneider, J. Legocka, G. Winiarska, L. Schreiber, S. N. Shabala, S. N. Sheremetiev, N. I. Shtemenko, B. Sosak-Swiderska, D. Tyrawska, U. Mazurek, B. Stevanović, J. Šinžar, O. Glišić, A. Stroinski, Maria Terbea, Gh. Micut, V. Titei, M. C. Thibaud, T. Betsche, M. Tosserams, A. J. Visser, M. W. Groen, G. Kalis, R. Kwant, E. Magendans, J. Rozema, C. Bajan, E. Popowska-Nowak, K. Grochala, M. J. Utrillas, L. Alegre, H. A. G. M. Van Den Boogaard, D. Alewijnse, E. J. Veneklaas, H. Lambers, T. A. W. Van Der Kooij, L. J. Kok, Adrie Van Der Werf, Tjeerd Bouma, Ingeborg Scheurwater, Hans Lambers, P. R. Hasselt, W. S. Chow, J. M. Anderson, D. Vidal, D. Grau, M. Sanjose, I. Fleck, R. Villar, J. Merino, G. Y. Vincze, J. Vallner, S. Balazsy, A. Balogh, F. Kiss, L. J. Zaric, L. Stefanovic, B. Kerecki, M. Radosavljevic, O. B. Zivalyuk, and I. A. Filonick
Subjects: 0106 biological sciences, Ecophysiology, 0303 health sciences, 03 medical and health sciences, Medical education, Plant Science, Session (computer science), Horticulture, Psychology, 01 natural sciences, 030304 developmental biology, 010606 plant biology & botany
Published: 1994
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39. Statistical and spectral analysis of the wind regime in the area of Catalonia

Author: J. Camps, Jna. Gavaldà, Francesc Díaz, and J. Massons
Subjects: Atmospheric Science, Wind power, Meteorology, business.industry, Wind regime, Climate change, Environmental science, Spectral analysis, Wind direction, Wind potential, business, Wind speed, Weibull distribution
Abstract: This work presents a statistical study of the wind power potential of three stations in the Catalonia area (Spain) over the 1973–1982 period. These stations correspond to three airports (Barcelona, Palma de Mallorca and Girona), which obviously do not present a high wind power potential and are not the suitable locations for wind power utilization, but which have been chosen for the long record of data stored (10 years). The aim of this work is to provide a model of wind potential in terms of the speed and wind direction, which may be applied to other sites. The wind speed has been modelled by a Weibull distribution function and the wind direction by a normal two-dimensional function. A spectral analysis of both variables has also been carried out. The present study provides an evaluation of the local wind power in the geographic area of Catalonia.
Published: 1992
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40. Influence of dynamic boundary conditions on the computed flow patterns inside a coaxial rotating disk-cylinder system

Author: Magdalena Aguiló, X. Ruiz, J. Massons, and Francesc Díaz
Subjects: Physics, General Computer Science, General Engineering, Geometry, Mechanics, Vorticity, Different types of boundary conditions in fluid dynamics, Physics::Fluid Dynamics, Meridional flow, Stream function, Potential flow around a circular cylinder, Cylinder, Boundary value problem, Coaxial
Abstract: In this paper, numerical solutions for the steady axisymmetric flow of an isothermal viscous fluid driven by moderate disk and/or cylinder coaxial rotation are presented. The influence of the two possible types of dynamic boundary conditions for the solid walls on the meridional flow features is discussed in detail using the computed Stokes streamfunction, angular momentum and vorticity distributions. Results show a clear dependence between the computed-generated flow patterns and the boundary conditions used.
Published: 1991
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41. Experimental study on a self-adapting Darrieus—Savonius wind machine

Author: J. Massons, Jna. Gavaldà, and Francesc Díaz
Subjects: Power coefficient, Rotor (electric), law, Computer science, Control theory, General Engineering, Torque, law.invention
Abstract: In the present paper a study of the starting torque and power coefficient of the Darrieus and Savonius machines have been realized. The results obtained were used to design a Darrieus-Savonius combined machine which is also fully analysed. Finally, a new design of the Darrieus-Savonius combined rotor is proposed and analysed.
Published: 1990
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42. Cardiovascular risk factors in patients aged 85 or older with ischemic stroke

Author: Miquel Balcells, Marisol Miguel, J. Massons, Eugenia Císcar, Luis García-Eroles, and Adrià Arboix
Subjects: Male, medicine.medical_specialty, Aging, Hyperlipidemias, Comorbidity, Brain Ischemia, Diabetes Complications, Risk Factors, Internal medicine, Diabetes mellitus, Atrial Fibrillation, Medicine, Humans, cardiovascular diseases, Prospective Studies, Registries, Risk factor, Sex Distribution, Prospective cohort study, Stroke, Aged, 80 and over, Heart Failure, business.industry, Cerebral infarction, Age Factors, Atrial fibrillation, General Medicine, Odds ratio, medicine.disease, Surgery, Cardiovascular Diseases, Heart failure, Hypertension, Female, Neurology (clinical), business
Abstract: Objectives To define a cardiovascular risk factor profile in very old patients with ischemic stroke. Patients and methods Data from a prospective hospital-based stroke registry was collected. Demographic characteristics and cardiovascular risk factors in individuals aged 85 years or older with ischemic stroke (n = 303) were compared with patients under 85 years (n = 1537). Results The study population accounted for 16.5% of all cases of ischemic stroke. The mean (S.D.) age was 88.2 (2.8) years (70% women). Hypertension occurred in 44.9% of patients, atrial fibrillation in 42.6%, diabetes in 16.2%, and congestive heart failure in 15.5%. The most frequent stroke subtypes were cardioembolic (36%) and atherothrombotic (31.4%) infarction. Congestive heart failure (odds ratio [OR] = 3.62), chronic renal disease (OR = 2.54), female sex (OR = 2.27), previous cerebrovascular disease (OR = 1.71), and atrial fibrillation (OR = 1.38) were significantly associated with ischemic stroke, whereas diabetes (OR = 0.68), hypertension (OR = 0.61), hyperlipidemia (OR = 0.45), and heavy smoking (OR = 0.21) occurred more frequently in patients under 85 years. Conclusion Adequate treatment of potentially modifiable risk factors, including congestive heart failure, chronic renal disease, and atrial fibrillation may contribute to prevent ischemic stroke in very old people.
Published: 2005

43. Lacunar stroke in patients with intermittent claudication

Author: L García-Eroles, J. Massons, Montserrat Oliveres, Adrià Arboix, Cecilia Targa, and Emili Comes
Subjects: Brain Infarction, Male, medicine.medical_specialty, Lacunar stroke, Risk Factors, Internal medicine, medicine, Humans, Registries, Risk factor, Stroke, Aged, Aged, 80 and over, Vascular disease, business.industry, General Medicine, Odds ratio, Intermittent Claudication, Middle Aged, medicine.disease, Prognosis, Intermittent claudication, Hospitals, Surgery, Stenosis, Neurology, Case-Control Studies, Cardiology, Female, Neurology (clinical), medicine.symptom, Centrum ovale, business
Abstract: Objectives – To compare the characteristics of lacunar stroke (LS) in patients with and without intermittent claudication. Material and methods – Data of 484 consecutive patients with LS were collected from a prospective hospital-based stroke registry in which 2500 patients are included. Results – Of the 142 patients with ischemic stroke and intermittent claudication, 39 (27.5%) had LS (8% of all lacunes). In the multivariate analysis, small centrum ovale topography (odds ratio 7.35), carotid stenosis >50% (odds ratio 3.17), and absence of limitation at discharge (odds ratio 2.01) were independent variables significantly associated with LS in patients with intermittent claudication. Conclusion – Only 8% of patients with LS had intermittent claudication. The short-term prognosis is good with a spontaneous early neurological recovery at discharge in 51.3% of patients. LS patients with intermittent claudication showed a striking similarity in risk factors and clinical syndromes in comparison with the LS patients without intermittent claudication.
Published: 2005

44. Tunable cw Lasing of Tm:KGd(W04)2 near 2 μm

Author: V. Petrov, U. Griebner, F. Güell, J. Massons, Jna. Gavalda, R Sole, M. Aguilo, and F. Diaz
Published: 2005
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45. Relevance of transient ischemic attack to early neurological recovery after nonlacunar ischemic stroke

Author: Miquel Balcells, L García-Eroles, Montserrat Oliveres, Cecilia Targa, Adrià Arboix, Cabeza N, and J. Massons
Subjects: Male, medicine.medical_specialty, Time Factors, Cohort Studies, Disability Evaluation, Text mining, Predictive Value of Tests, Internal medicine, parasitic diseases, Activities of Daily Living, Medicine, Humans, Transient (computer programming), cardiovascular diseases, Aged, Aged, 80 and over, business.industry, Recovery of Function, Middle Aged, Prognosis, nervous system diseases, Stroke, Cross-Sectional Studies, Neurology, Ischemic Attack, Transient, Ischemic stroke, Acute Disease, Cardiology, Ischemic preconditioning, Female, Neurology (clinical), Cardiology and Cardiovascular Medicine, business
Abstract: Background: We hypothesized that previous transient ischemic attack (TIA) had a favorable effect on early outcome after acute nonlacunar ischemic stroke. Methods: Data of 1,753 consecutive patients with ischemic stroke collected from a prospective hospital-based stroke registry were studied. A comparison was made of the groups with and without previous TIA. Favorable outcome included spontaneous neurological recovery or grades 0–2 of the modified Rankin scale at hospital discharge. Results: Previous TIA occurred in 55 (11.5%) of 484 patients with lacunar stroke and in 166 (13.1%) of 1,269 patients with nonlacunar stroke. The percentage of nonlacunar ischemic stroke patients with favorable outcome was 21.7% in those with a history of TIA compared to 15% without TIA (p < 0.03). In the lacunar stroke group, differences were not significant. In the multivariate analysis, TIA was an independent predictor of spontaneous in-hospital recovery. Conclusions: Prior TIA was associated with a favorable outcome in nonlacunar ischemic stroke, suggesting a neuroprotective effect of TIA possibly by inducing a phenomenon of ischemic tolerance allowing better recovery from a subsequent ischemic stroke.
Published: 2003

46. Growth and Structural Characterization of Rb2Ti1.01Er0.99 (PO4)3

Author: A. Aznar, Francesc Díaz, J. J. Carvajal, J. Massons, R. Sole, Magdalena Aguiló, Jna. Gavalda, and Xavier Solans
Subjects: Lanthanide, Potassium, Inorganic chemistry, Analytical chemistry, chemistry.chemical_element, General Medicine, Phosphate, Alkali metal, Ion, Characterization (materials science), Crystal, chemistry.chemical_compound, Nonlinear optical, chemistry
Abstract: We successfully grew langbeinite-type structures containing Ti 4+ and Ln 3+ ions as M 2 Ti 2-x Ln x (PO 4 ) 3 crystals (M = K + or Rb + and Ln = Er 3+ or Yb 3+ ) by high-temperature-solution methods. We took accurate composition measurements of these crystals, paying special attention to the lanthanide contents. We resolved the structure of the Rb 2 Ti 1.01 Er 0.99 (PO 4 ) 3 crystal and studied the evolution of this structure with the temperature. We found that this compound decomposed at 1323 K. We made a preliminary study to check the nonlinear optical properties of these materials, showing that the second-harmonic generation efficiency of the Rb 2 Ti 1.01 Er 0.99 (PO 4 ) 3 was at least similar to that of potassium dihydrogen phosphate.
Published: 2003
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47. Clinical study of lacunar infarcts in non-hypertensive patients

Author: J. Massons, Lluis García-Eroles, Eva Altés, and Adrià Arboix
Subjects: medicine.medical_specialty, Multivariate analysis, Lacunar stroke, business.industry, Rehabilitation, Atrial fibrillation, Disease, Odds ratio, medicine.disease, nervous system diseases, body regions, Brain ischemia, Internal medicine, Diabetes mellitus, Physical therapy, medicine, Cardiology, Surgery, cardiovascular diseases, Neurology (clinical), Risk factor, Cardiology and Cardiovascular Medicine, business
Abstract: Lacunar infarcts in non-hypertensive patients have been scantly assessed. The objective of this study was to determine clinical features of lacunar infarct in patients without hypertension (n = 91) in comparison with characteristics of lacunar infarcts occurring in patients with hypertension (n = 283) collected from a prospective hospital-based stroke registry in which 2000 patients with acute stroke are included. Predictors of lacunar infarct in patients without hypertension were assessed by multiple logistic regression analysis. The group of non-hypertensive patients with lacunar infarction showed a significantly higher frequency of male gender, age 85 years or older, history of atrial fibrillation, chronic obstructive pulmonary disease and diabetes mellitus, and a significantly lower frequency of female gender and absence of limitation at hospital discharge than hypertensive patients with lacunar infarct. Differences between hypertensive and non-hypertensive patients in relation to frequency of the different lacunar syndromes were not observed. After multivariate analysis, age 85 years or older (odds ratio 3.13), diabetes (odds ratio 2.57), and male gender (odds ratio 1.99) seemed to be independent factors associated with lacunar infarct in patients without hypertension. Lacunar infarct in non-hypertensive patients showed some differential clinical features compared to the remaining lacunar infarctions because it occurred more frequently in male patients aged 85 years or older. In this group, diabetes was the most important modificable risk factor. These results suggest an ealier effect of arteriopathy caused by hypertension favoring lacunar brain ischemia, whereas in non-hypertensive patients, arteropathy responsible for small vessel disease would take a more prolonged time in causing lacunar infarction.
Published: 2002

48. Prognostic value of very early seizures for in-hospital mortality in atherothrombotic infarction

Author: Adrià Arboix, J. Massons, Montserrat Oliveres, Miquel Balcells, Emili Comes, and Luis García-Eroles
Subjects: Male, medicine.medical_specialty, Time Factors, Neurological disorder, Dizziness, Severity of Illness Index, Epilepsy, Predictive Value of Tests, Risk Factors, Seizures, Internal medicine, Convulsion, Atrial Fibrillation, Medicine, Humans, cardiovascular diseases, Hospital Mortality, Prospective Studies, Registries, Risk factor, Aged, Aged, 80 and over, Heart Failure, business.industry, Cerebral infarction, Mortality rate, Atrial fibrillation, Cerebral Infarction, medicine.disease, Prognosis, Respiration Disorders, Thrombosis, Neurology, Spain, Anesthesia, Multivariate Analysis, Cardiology, Disease Progression, Consciousness Disorders, Female, Neurology (clinical), medicine.symptom, Intracranial Thrombosis, business
Abstract: We studied the influence of very early seizures (within 48 h of stroke onset) on in-hospital mortality in a cohort of 452 consecutive patients with atherothrombotic infarction. These patients were selected from 2,000 consecutive acute stroke patients registered in a prospective hospital-based stroke registry in Barcelona, Spain. A comparison of data between the nonseizure (n = 442) and seizure (n = 10) groups was made. Predictors of very early seizures were assessed by multivariate analysis. The in-hospital mortality rate was significantly higher in atherothrombotic stroke patients with very early seizures than in those without seizures (70 vs. 19.5%, p < 0.001). Independent predictors of in-hospital mortality included very early seizures, congestive heart failure, atrial fibrillation, 85 years of age or older, altered consciousness, dizziness, parietal and pons involvement, and respiratory and cardiac complications. After multivariate analysis, atherothrombotic infarction of occipital topography and decreased consciousness appeared to be independent predictors of atherothrombotic stroke with very early seizures. Very early seizures constitute an important risk factor for in-hospital mortality after atherothrombotic stroke.
Published: 2002

49. Site of bleeding and early outcome in primary intracerebral hemorrhage

Author: A, Arboix, E, Comes, L, García-Eroles, J, Massons, M, Oliveres, M, Balcells, and C, Targa
Subjects: Male, Risk Factors, Spain, Humans, Female, Hospital Mortality, Registries, Middle Aged, Prognosis, Aged, Cerebral Hemorrhage
Abstract: To describe the influence of the site of the bleeding on clinical spectrum and early outcome of patients with acute spontaneous intracerebral hemorrhage (ICH).ICH was diagnosed in 229 (11%) of 2000 consecutive stroke patients included in a prospective stroke registry over a 10-year period. Frequency of demographic variables, risk factors, clinical events, neuroimaging data, and early outcome (until hospital discharge) according to different sites of bleeding was assessed. Each topography of the bleeding (independent variable) was compared with the remaining ICH cases by means of logistic regression analysis.In the multivariate analysis, sensory deficit was significantly associated with ICH in the thalamus; lacunar syndrome and hypertension with ICH in the internal capsule-basal ganglia; seizures, non-sudden stroke onset, and hypertension with lobar ICH; ataxia and sensory deficit with ICH in the cerebellum; cranial nerve palsy with ICH in the brainstem; and limb weakness, diabetes, and altered consciousness with multiple topographic involvement. The overall in-hospital mortality rate was 31%, but this varied from 65% for multiple topographic involvement, 44% for intraventricular ICH, and 40% for ICH in the brainstem to 16% for ICH in the internal capsule-basal ganglia.These data show the heterogeneous clinical profile of ICH, but they also suggest a difference in the clinical spectrum and in-hospital mortality according to the site of bleeding.
Published: 2002

50. Clinical study of 222 patients with pure motor stroke

Author: L García-Eroles, I Padilla, Cecilia Targa, J. Massons, Adrià Arboix, and Emili Comes
Subjects: Male, medicine.medical_specialty, Neurology, Lacunar stroke, Short Report, Infarction, Neurological disorder, Diabetes mellitus, Internal medicine, medicine, Humans, cardiovascular diseases, Stroke, Aged, Aged, 80 and over, Cerebral infarction, business.industry, Motor Cortex, Middle Aged, medicine.disease, Surgery, nervous system diseases, Psychiatry and Mental health, Multivariate Analysis, Cardiology, Etiology, Female, Neurology (clinical), business
Abstract: The objective was to assess the frequency of pure motor stroke caused by different stroke subtypes and to compare demographic, clinical, neuroimaging, and outcome data of pure motor stroke with those of patients with other lacunar stroke as well as with those of patients with non-lacunar stroke. Data from 2000 patients with acute stroke (n=1761) or transient ischaemic attack (n=239) admitted consecutively to the department of neurology of an acute care 350 bed teaching hospital were prospectively collected in the Sagrat Cor Hospital of Barcelona stroke registry over a 10 year period. For the purpose of the study 222 (12.7%) patients with pure motor stroke were selected. The other study groups included 218 (12.3%) patients with other lacunar strokes and 1321 (75%) patients with non-lacunar stroke. In relation to stroke subtype, lacunar infarcts were found in 189 (85%) patients, whereas ischaemic lacunar syndromes not due to lacunar infarcts occurred in 23 (10.4%) patients (atherothrombotic stroke in 12, cardioembolic stroke in seven, infarction of undetermined origin in three, and infarction of unusual aetiology in one) and haemorrhagic lacunar syndromes in 10 (4.5%). Patients with pure motor stroke showed a better outcome than patients with non-lacunar stroke with a significantly lower number of complications and in hospital mortality rate, shorter duration of hospital stay, and a higher number of symptom free patients at hospital discharge. After multivariate analysis, hypertension, diabetes, obesity, hyperlipidaemia, non-sudden stroke onset, internal capsule involvement, and pons topography seemed to be independent factors of pure motor stroke in patients with acute stroke. In conclusion, about one of every 10 patients with acute stroke had a pure motor stroke. Pure motor stroke was caused by a lacunar infarct in 85% of patients and by other stroke subtypes in 15%. Several clinical features are more frequent in patients with pure motor stroke than in patients with non-lacunar stroke.
Published: 2001

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