86 results on '"D. Smadja"'
Search Results
2. Défaut de mobilisation par l’exercice des cellules souches/progénitrices endothéliales chez les patients BPCO et réponse vasculaire à la réhabilitation respiratoire
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E. Desplanche, L. Blervaque, S. Günther, M. Gruest, A. Philippe, J. Rancic, N. Gendron, C. Hédon, N. Heraud, A. Perez-Martin, A. Virsolvy, O. Cazorla, G. Condurache, N. Plouvier, A. Proust, Y. Dauvilliers, M. Hayot, E. Rossi, A. Bourdin, F. Gouzi, and D. Smadja
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Pulmonary and Respiratory Medicine - Published
- 2023
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3. Specificities of acute phase stroke management in the elderly
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D. Smadja, Pierre Krolak-Salmon, Université Claude Bernard Lyon 1 (UCBL), and Université de Lyon
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medicine.medical_specialty ,[SDV]Life Sciences [q-bio] ,medicine.medical_treatment ,Population ,Rehabilitation Centers ,03 medical and health sciences ,0302 clinical medicine ,Reperfusion therapy ,Epidemiology ,Humans ,Medicine ,Dementia ,cardiovascular diseases ,030212 general & internal medicine ,10. No inequality ,education ,Stroke ,Neurorehabilitation ,Aged ,education.field_of_study ,Rehabilitation ,business.industry ,Incidence ,medicine.disease ,3. Good health ,Neurology ,Emergency medicine ,Delirium ,Neurology (clinical) ,medicine.symptom ,business ,030217 neurology & neurosurgery - Abstract
Health professionals are currently facing the challenge of managing an increasing number of old patients presenting with acute stroke, due to rapid aging of the population. Compared to their younger counterparts, elderly patients differ in many ways in the setting of acute stroke. Apart from a striking high stroke incidence, which increases exponentially as age increases, cardioembolism also becomes, as patients age, the main cause of ischemic stroke. Delirium, which can challenge the diagnosis, is frequent at the acute phase of stroke, and may be related to an underlying dementia, which is almost exclusively observed in the elderly during stroke. At all levels, management of elderly stroke patients is suboptimal, especially when they are cognitively impaired, with insufficiencies including admission to stroke units, applying standards of care and investigation, reperfusion therapy for ischemic stroke, and finally transfer to rehabilitation centers. A paradigm shift must take place to limit age-related discrimination for acute-phase management of stroke.
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- 2020
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4. Sequential intracorneal ring segment implantation followed by transepithelial phototherapeutic keratectomy and corneal cross-linking
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C. Debono, D. Smadja, V. Saunier, and D. Touboul
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Male ,Cornea ,Ophthalmology ,Keratectomy ,Quality of Life ,Humans ,Female ,Keratoconus ,Retrospective Studies - Abstract
To evaluate the safety and visual outcomes of intrastromal corneal ring segment (ICRS) implantation followed by transepithelial phototherapeutic keratectomy (te-PTK) and corneal cross-linking (CXL) in patients with mild keratoconus.Patients with mild keratoconus and contact lens intolerance who underwent sequential ICRS implantation followed by phototherapeutic keratectomy and corneal CXL between April 2015 and July 2018 were retrospectively included in the study. Refractive and visual outcomes, satisfaction questionnaire and complications were recorded at the last follow-up (mean 9.5 months postoperatively).Twenty eyes of 17 patients were enrolled, including 5 women and 15 men. The mean time between the two procedures was 16 months. Based on values before the first procedure and 9.5 months after the second procedure, significant improvements were noted in uncorrected distance visual acuity (UDVA) (0.80±0.35 logMAR vs. 0.46±0.38 logMAR), corrected distance visual acuity (CDVA) (0.38±0.23 logMAR vs. 0.13±0.16 logMAR), maximal K (56.11±4 diopters [D] vs. 50.6±3.56 D), mean K (51.87±3.43 D vs. 48.45±2.91 D), cylinder (7.99±3.94 D vs. 4.23±3.49 D), and spherical equivalent (-3.84±3.36 D vs. -0.99±2.15 D) (P0.01). Among the outcomes, we noted 5 (25%) superficial corneal scarring (haze); 75% of eyes gained=1 logMAR line of CDVA. In all, 94.5% of patients reported that they were satisfied with their outcomes.Combining ICRS implantation followed by te-PTK and corneal CXL appears to be a safe and effective approach for improving visual outcomes and quality of life in keratoconus patients.
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- 2021
5. Dysfonction endothéliale et défaut de réponse au réentraînement à l’effort dans la BPCO–Mobilisation des progéniteurs endothéliaux circulants
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F. Gouzi, S. Günther, L. Blervaque, M. Gruest, A. Philippe, J. Rancic, N. Gendron, C. Hédon, N. Heraud, A. Perez-Martin, A. Virsolvy, O. Cazorla, G. Condurache, N. Plouvier, A. Proust, Y. Dauvilliers, M. Hayot, E. Rossi, and D. Smadja
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Pulmonary and Respiratory Medicine - Published
- 2022
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6. Stroke Thrombus Segmentation on SWAN with Multi-Directional U-Nets
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Y. L’hermitte, D. Smadja, N. Chausson, Vincent Vigneron, M. Aghasaryan, Elmar Lang, Dominique Fourer, J. Kobold, Ana Maria Tomé, C. Alecu, and Hichem Maaref
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medicine.medical_specialty ,medicine.diagnostic_test ,business.industry ,Magnetic resonance imaging ,02 engineering and technology ,medicine.disease ,Sagittal plane ,03 medical and health sciences ,0302 clinical medicine ,medicine.anatomical_structure ,020204 information systems ,Coronal plane ,Angiography ,Multi directional ,cardiovascular system ,0202 electrical engineering, electronic engineering, information engineering ,medicine ,Segmentation ,cardiovascular diseases ,Radiology ,Thrombus ,business ,Stroke ,030217 neurology & neurosurgery ,circulatory and respiratory physiology - Abstract
The thrombus causing a stroke can be seen on the susceptibility weighted angiography (SWAN) magnetic resonance imaging (MRI) sequence. But it is very small and hard to detect by humans. Up to date the thrombus is identified by trained human experts. But as stroke needs quick treatment, an automatic detection of the thrombus would be useful to speed up the diagnosis of acute stroke. We propose a method for automatic thrombus detection from SWAN using three separate U-Nets which work on the axial, coronal and sagittal planes.
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- 2019
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7. Angioedema associated with thrombolysis for ischemic stroke: analysis of a case-control study
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O. Fain, Denis Sablot, C. Héroum, Thomas Ronzière, M. Gaudron, S. Di Legge, A. Lecluse, Olivier Detante, F. Dumont, S. Marcel, Sonia Alamowitch, D. Gobert, Isabelle Boccon-Gibod, Guillaume Marc, D. Smadja, Michael Obadia, D. Launay, S. Lefèvre, M. Sévin, Laurence Bouillet, Laurent Suissa, Stéphane Gayet, M. B. Vlaicu, Emilie Doche, Clara Vigneron, Nicolas Javaud, Igor Sibon, I. Ion, I. Arnaud, and P. Girard‐Madoux
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0301 basic medicine ,Male ,medicine.medical_specialty ,medicine.medical_treatment ,Bradykinin ,Angiotensin-Converting Enzyme Inhibitors ,030204 cardiovascular system & hematology ,Brain Ischemia ,03 medical and health sciences ,chemistry.chemical_compound ,0302 clinical medicine ,Sex Factors ,Risk Factors ,Internal medicine ,Internal Medicine ,medicine ,Humans ,Thrombolytic Therapy ,Angioedema ,Aged ,Mechanical ventilation ,business.industry ,Case-control study ,Odds ratio ,Thrombolysis ,Stroke ,030104 developmental biology ,chemistry ,Case-Control Studies ,Ischemic stroke ,Cardiology ,Female ,France ,medicine.symptom ,business ,Complication - Abstract
BACKGROUND Bradykinin-mediated angioedema (AE) is a complication associated with thrombolysis for acute ischemic stroke. Risk factors are unknown and management is discussed. OBJECTIVES To clarify risk factors associated with bradykinin-mediated AE after thrombolysis for acute ischemic stroke. METHODS In a case-control study conducted at a French reference centre for bradykinin angiœdema, patients with thrombolysis for acute ischemic stroke and a diagnosis of bradykinin-mediated angiœdema, were compared to controls treated with thrombolysis treatment without angiœdema. RESULTS Fifty-three thrombolysis-related AE were matched to 106 control subjects. The sites of attacks following thrombolysis for ischemic stroke mainly included tongue (34/53, 64%) and lips (26/53, 49%). The upper airways were involved in 37 (70%) cases. Three patients required mechanical ventilation. Patients with bradykinin-mediated angiœdema were more frequently women [33 (62%) vs. 44 (42%); P = 0.01], had higher frequency of prior ischemic stroke [12 (23%) vs. 9 (8%); P = 0.01], hypertension [46 (87%) vs. 70 (66%); P = 0.005], were more frequently treated with angiotensin-converting enzyme inhibitor [37 (70%) vs. 28 (26%); P
- Published
- 2019
8. Development of a Thin, Double-Sided Alpha/Beta Detector for Surface-Contamination Measurement
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Alon Osovizky, Y. Knafo, Y. Cohen, Aaron Ocherashvili, R. Atias, D. Ginzburg, Y. Yehuda-Zada, L. Carmel, I. Israelashvili, D. Smadja, S. Dadon, T. Mazor, Y. Ifergan, and Yagil Kadmon
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0301 basic medicine ,Physics ,Nuclear and High Energy Physics ,Scintillation ,Physics::Instrumentation and Detectors ,business.industry ,Detector ,Scintillator ,Particle detector ,03 medical and health sciences ,Full width at half maximum ,030104 developmental biology ,Optics ,Nuclear Energy and Engineering ,Beta particle ,Optoelectronics ,Figure of merit ,Electrical and Electronic Engineering ,Photonics ,business - Abstract
Low-level radioactive surface-contamination measurements require lightweight, large-area, and high-efficiency detectors. In the previous work, we utilized wavelength shifting (WLS) fibers, coupled to a beta-sensitive plastic scintillator (PS) layer on one side, and to an alpha-sensitive ZnS(Ag) layer on both sides, for detecting both alpha and beta particles. In this work, the main goal was to improve the light collection (maximizing the number of photons reaching the PMT) by optimizing the WLS fibers structure, for getting better signal-to-noise ratio and to minimize the low-energy threshold of the detector. In most cases, improving the light collection mostly influenced the detector resolution. In our case, improving the light collection will improve the detection efficiency by ability to detect more events at low-energy spectrum, which is limited by the noise level. Aiming to improve the scintillation light-collection efficiency, we investigated and compared four different detector configurations. Two of them described in the previous work presents utilization of WLS fibers, with different diameters ( $1~\hbox{mm}\phi $ , $1.5~\hbox{mm}\phi $ ), coupled on the PS. Two other configurations present utilization of WLS fibers ( $1.5~\hbox{mm}\phi $ ) installed into a flat groove on the PS layer, while in one configuration we utilized straight WLS fibers and in the other we utilized bent WLS fibers. It was found that the utilization of WLS fibers in bent configuration gives the highest light-collection efficiency. Additionally, there is improved light collection achieved by using WLS fibers with wider diameter ( $1.5~\hbox{mm}\phi $ ), which maximizes the capture fraction. Additionally, since ZnS(Ag) and PS have different decay times (200 ns and 2.4 ns, respectively), we were able to separate alpha from beta events. An algorithm script was developed to calculate the full width at half maximum (FWHM) of each pulse and a histogram was generated of the FWHM values for the pulse shape discrimination (PSD). Efficient PSD was achieved for alpha energies above 100 keV with figure of merit (FOM) of 1.92. GEANT4 simulation was carried out and compared with experimental results. The results of both were matched, showed that the light-collection efficiency from the bent WLS fibers configuration was the best. The simulation results and the experiments, including full description of the detector structure, ionization stage, and the WLS light collection, are presented.
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- 2016
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9. Utilization of wavelength-shifting fibers coupled to ZnS(Ag) and plastic scintillator for simultaneous detection of alpha/beta particles
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T. Mazor, D. Ginzburg, I. Israelashvili, Y. Ifergan, Y. Yehuda-Zada, Y. Knafo, Y. Kadmon, D. Smadja, Y.S Cohen, A. Osovizky, S. Dadon, and E. Gonen
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Physics ,Nuclear and High Energy Physics ,Scintillation ,Physics::Instrumentation and Detectors ,business.industry ,Detector ,Antenna aperture ,Alpha particle ,Scintillator ,Zinc sulfide ,Wavelength ,chemistry.chemical_compound ,Optics ,chemistry ,Beta particle ,business ,Instrumentation - Abstract
Low level radioactive surface contamination measurements require lightweight, large area and high efficiency detector. In most existing scintillation detectors there is a tradeoff between effective area and scintillation light collection. By using wavelength shifting (WLS) fibers the scintillation light may be collected efficiently also in a large area detector. In this study, WLS fibers were coupled to a beta sensitive plastic scintillator layer and to a alpha sensitive silver-activated zinc sulfide ZnS(Ag) layer for detecting both alpha and beta particles. The WLS fibers collect the scintillation light from the whole detector and transfer it to a single PMT. This first prototype unique configuration enables monitoring radioactive contaminated surfaces by both sides of the detector and provides high gamma rejection. In this paper, the detector structure, as well as the detector’s measured linear response, will be described. The measured detection efficiency of 238 Pu alpha particles (5.5 MeV) is ~63%. The measured detection efficiency for beta particles is ~89% for 90 Sr– 90 Y (average energy of 195.8 keV, 934.8 keV), ~50% for 36 Cl (average energy of 251.3 keV), and 35% for 137 Cs (average energy of 156.8 keV).
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- 2015
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10. Angiœdèmes bradykiniques après thrombolyse pour accident vasculaire cérébral : 43 observations
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A. Lecluse, Sonia Alamowitch, D. Smadja, Arsène Mekinian, Thomas Ronzière, Olivier Fain, D. Gobert, Clara Vigneron, Laurence Bouillet, F. Dumont, Stéphane Gayet, and Nicolas Javaud
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03 medical and health sciences ,0302 clinical medicine ,Gastroenterology ,Internal Medicine ,030212 general & internal medicine ,030217 neurology & neurosurgery - Abstract
Introduction La thrombolyse a revolutionne le pronostic de l’accident vasculaire cerebral ischemique (AVC). L’angiœdeme (AO) est une complication rare mais potentiellement letale de la thrombolyse. L’incidence de ces AO est variable en fonction des etudes, variant de 1,3 a 7,9 % [1] . Ces donnees sont issues d’etudes retrospectives avec des effectifs faibles et leurs resultats sont parfois contradictoires. Patients et methodes Il s’agit d’une etude retrospective nationale multicentrique. Cent vingt-sept unites neurovasculaires (UNV) ont ete contactees par mail. Les caracteristiques demographiques et les donnees cliniques de ces patients ont ete recueillies. L’AO bradykiniques etait defini par la survenue apres la thrombolyse d’un œdeme non provoque de la langue, des levres ou de l’oropharynx. L’AO etait attribue a la thrombolyse lorsqu’il succedait a l’initiation de ce traitement et lorsqu’il n’avait pas les caracteristiques d’un AO histaminique. Resultats Soixante-treize reponses ont ete obtenues (57,5 % des UNV). Vingt centres ont pu retrouver 43 cas qui ont ete analyses. L’AO post-thrombolyse etait plus frequemment retrouve chez des femmes (55,8 % des cas). La moyenne d’âge etait de 73 ans et les patients etaient d’origine europeenne. Dans 3 cas (0,07 %), il existait un antecedent personnel d’AO bradykinique. Des antecedents d’allergie etaient retrouves dans 0,07 % des cas. Il s’agissait du premier episode d’AVC dans 79 % des cas. Un diabete etait rapporte dans 20,9 % des cas avec un traitement par gliptine chez 3 patients (0,07 %). Parmi les patients, 81,4 % etaient hypertendus. Sur les 43 patients, 29 (67,4 %) etaient traites par IEC (principalement perindopril [41,4 %] et ramipril [27,6 %]), 2 par sartan (0,05 %) et 13 (30,2 %) par betabloquants (en majorite du bisoprolol dans 69,2 % des cas). L’AVC concernait le territoire sylvien dans 90,7 % des cas sans predominance droite ou gauche. Le NIHSS etait en moyenne a 11. Le delai moyen entre l’AVC et la thrombolyse etait de 166,6 min. L’AO survenait en moyenne 115,4 min apres le debut de la thrombolyse et la duree moyenne rapportee de l’episode etait de 21,2 h. Dans 18 cas (41,9 %), il concernait uniquement la langue, dans 8 cas (18,6 %) uniquement les levres et dans 9 cas (20,9 %) la levre et la langue. Dans 2 cas (0,05 %), il existait un œdeme du pharynx qui etait associe a un œdeme de la levre pour un cas et un œdeme de la levre et de la langue pour l’autre cas. Dans 4 cas une atteinte du visage etait rapportee (0,09 %) associe dans 2 cas a une atteinte labiale. Dans les autres cas nous ne disposions pas de la localisation. Lorsque cette donnee etait rapportee (79 % des cas), l’AO etait asymetrique dans la majorite des cas (64,7 %) et etait preferentiellement ipsilateral au deficit (controlateral a la localisation de l’AVC) dans 81,8 % des cas. Douze patients (27,9 %) ont ete hospitalises en reanimation et 4 patients (0,09 %) ont ete intubes et ventiles mecaniquement. Aucune necessite de tracheotomie n’a ete relevee. Deux deces (0,05 %) etaient rapportes a j15 et j19 et non lies a l’AO. Trente-trois patients ont recu des corticoides par voie veineuse (76,7 %), 23 des antihistaminiques (53,5 %) et 6 de l’adrenaline par voie veineuse (14,0 %). Dix patients (23,2 %) ont beneficie d’un traitement specifique par icatibant (50 % des cas) ou concentre de C1 inhibiteur (50 % des cas). Dans 1 cas (0,02 %) de l’acide tranexamique a ete introduit. Six patients n’ont recu aucun traitement (14,0 %). Les IEC ont ete poursuivis apres la sortie chez 10 patients (23,2 %) et introduits pendant l’hospitalisation chez 4 patients (0,09 %). Discussion Cette analyse, sur un effectif superieur aux etudes precedemment rapportees, suggere un lien entre IEC et AO post-thrombolyse ce qui n’avait pas ete retrouve dans une meta-analyse [1] mais etait deja souligne par plusieurs etudes retrospectives [2] , [3] . Elle confirme que l’AO est le plus souvent ipsilateral au deficit et majoritairement peu severe avec cependant possibilite d’engager le pronostic vital [2] . Conformement a la litterature, les corticoides et les antihistaminiques sont le plus souvent utilises malgre leur inefficacite sur cet AO bradykinique et un traitement specifique n’est introduit que dans 23,2 % des cas. Conclusion L’AO est une complication potentiellement dangereuse de la thrombolyse et les IEC sont un facteur de risque. Sa reconnaissance precoce et l’information des neurologues pourraient permettre d’initier rapidement un traitement specifique. Une etude prospective est necessaire afin de mieux connaitre son incidence et ses caracteristiques clinicobiologiques.
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- 2018
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11. [Not Available]
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S, Hurel, C, Guerin, A, Mejean, D, Smadja, and M, Timsit
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- 2015
12. Télémédecine ORTIF : quels usages pour les accidents vasculaires cérébraux dans un territoire pilote ?
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F. Dolveck, C. Al Tarcha, Y. L’hermitte, D. Smadja, N. Alecu, N. Chausson, M. Aghassaryan, K. Chik-Chauveau, C. Imbernon, and D. Soumah
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03 medical and health sciences ,0302 clinical medicine ,Health Information Management ,Health Informatics ,030212 general & internal medicine ,030217 neurology & neurosurgery - Abstract
Introduction/objectifs/but La plateforme de telemedecine ORTIF se deploie en Ile de France depuis janvier 2015. Elle permet aux professionnels de realiser des tele-expertises et parfois des visioconsultations. Quel est l’impact sur la prise en charge des accidents vasculaires cerebraux (AVC) ? Materiel et methode Le service de neurologie de l’hopital Sud Francilien est le centre de reference d’un territoire comprenant 600 000 habitants. Il prend en charge plus de 900 patients victimes d’AVC par an, realise plus de 350 thrombolyses par an completees eventuellement par une thrombectomie sur l’hopital de Bicetre. Il fonctionne en lien avec 9 etablissements accueillants des urgences. Six de ces structures sont progressivement equipees d’ORTIF. Nous evaluons le recours a l’expertise neurologique par telemedecine pour les AVC de ce territoire pilote entre janvier et aout 2016. Resultats/observations Cent quatre-vingt-douze patients suspects d’AVC ont pu beneficier d’une expertise neurologique avec ORTIF : Melun (53), Etampes (48), Montereau (41), Fontainebleau (17), Longjumeau (14), Nemours (12), Dourdan (6). Une thrombolyse a ete effectuee chez 22 d’entre eux dont 11 sur site. Bien qu’encourageants, ces resultats ne refletent pas suffisamment l’activite potentielle de telemedecine dans ce contexte. L’engagement des directions de service et une experience prealable de visioconference sont identifies comme facteurs favorisant l’utilisation de ces outils. La protocolisation, la realisation de telestaffs interservices debutes il y a quelques mois et la mise en œuvre d’un protocole territorial d’imagerie sont les actions mises en œuvre pour impulser les usages. La conduite du changement des professionnels est affaire d’implication de chacun des acteurs et des leaders d’opinion locaux.
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- 2017
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13. Syndrome du bébé secoué : imagerie en Retcam
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V. Coste, J.-F. Korobelnik, C. Paya, M.-N. Delyfer, D Smadja, and J. Pechmeja
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Ophthalmology ,medicine.diagnostic_test ,business.industry ,medicine ,Nuclear medicine ,business ,Fluorescein angiography - Published
- 2015
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14. Cerebral venous thrombosis in elderly patients.
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Garcia V, Bicart-Sée L, Crassard I, Legris N, Zuber M, Pico F, Guidoux C, Obadia M, Boulenoir N, Smadja D, Mazighi M, Lavenu-Bombled C, Baudry E, Lapergue B, Turc G, Tuppin P, and Denier C
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- Humans, Female, Male, Aged, Retrospective Studies, Aged, 80 and over, France epidemiology, Incidence, Middle Aged, Age Factors, Venous Thrombosis epidemiology, Intracranial Thrombosis epidemiology
- Abstract
Background and Purpose: We aimed to report the characteristics of cerebral venous thrombosis (CVT) in elderly people (aged ≥65 years)., Methods: This multicenter retrospective cohort included elderly patients hospitalized for a first CVT in nine Paris-Ile-de-France hospitals between 2011 and 2021. The estimated incidence was compared to CVT recorded by the French health insurance data system. Lariboisière Hospital's CVT registry allowed comparisons of our elderly cohort with individuals younger than 65 years., Results: One hundred fourteen patients were included in this study (mean age = 74.2 years, range = 65-93, 61% female). The CVT annual incidence in Ile-de-France was 5.9-7.1 per million elderly individuals versus 8.5 per million nationwide. Headaches and focal deficits were the most common initial clinical features (50% and 51%, respectively), followed by seizures and confusion (40% and 27%). Treatment included anticoagulation (93%) and, rarely, endovascular procedure (2%) or craniectomy (1%). Compared with adult patients aged <65 years (younger adults), elderly patients presented fewer headaches (50% vs. 96%, p < 0.01) and intracranial hypertension (7% vs. 22%, p < 0.01) but more seizures and focal deficits (40% vs. 27% and 51% vs. 38%, respectively, p < 0.01). Underlying cancer, hemopathy, and locoregional infections were more frequent in elderly patients than among younger adults (p < 0.01). The prognosis of patients from our elderly cohort was poorer than that of younger adults; 8% died in the acute phase, and 73% had a favorable outcome at 1 year (vs. 1.7% and 87%, respectively, p < 0.01)., Conclusions: CVT in elderly patients has a specific clinical presentation, epidemiology, and risk factors such as cancer or hemopathy, justifying specialized management., (© 2024 The Author(s). European Journal of Neurology published by John Wiley & Sons Ltd on behalf of European Academy of Neurology.)
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- 2024
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15. Forme fruste keratoconus detection with OCT corneal topography using artificial intelligence algorithms.
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Mourgues E, Saunier V, Smadja D, Touboul D, and Saunier V
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- Humans, Retrospective Studies, Adult, Male, Female, Case-Control Studies, Cornea diagnostic imaging, Cornea pathology, Young Adult, ROC Curve, Middle Aged, Keratoconus diagnosis, Tomography, Optical Coherence methods, Corneal Topography methods, Algorithms, Artificial Intelligence
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Purpose: To differentiate a normal cornea from a forme fruste keratoconus (FFKC) with the swept-source optical coherence tomography (SS-OCT) topography CASIA 2 using machine learning artificial intelligence algorithms., Setting: Monocentric, performed in CHU Bordeaux, Bordeaux, France., Design: Retrospective case-control., Methods: 3 groups were included: KC group (108 eyes), FFKC (88 eyes), and normal corneas (162 eyes). The data were analyzed and processed using the Dataiku data science platform. Machine learning models (random forest [RF], logistic regression [LR]) were used to develop a multiclass classifier for automated early KC detection. The models were trained using a training database and tested using a test database. Then, algorithms were compared with the Ectasia Screening Index (ESI), which is an OCT-topography inherent screening score for ectasia., Results: The LR and RF detected FFKC with an area under the curve of 0.99 and 0.98, respectively. The sensitivities of LR (100%) and RF (84%) were better than the ESI (28%) for the diagnosis of FFKC. However, ESI has a maximum specificity (100%) compared with the LR (100%) and 90% for RF., Conclusions: This study identified discriminating topographic parameters to be considered in refractive surgery screening on SS-OCT CASIA 2. An algorithm capable of classifying normal eyes vs FFKC cases was developed, with improved performance compared with the ESI score., (Copyright © 2024 Published by Wolters Kluwer on behalf of ASCRS and ESCRS.)
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- 2024
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16. Second-dose intravenous thrombolysis with tenecteplase in alteplase-resistant medium-vessel-occlusion strokes: A retrospective and comparative study.
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Chausson N, Olindo S, Laborne FX, Aghasaryan M, Renou P, Soumah D, Debruxelles S, Altarcha T, Poli M, L'Hermitte Y, Sagnier S, Toudou-Daouda M, Aminou-Tassiou NR, Bentamra L, Benmoussa N, Alecu C, Imbernon C, Smadja L, Ouanounou G, Rouanet F, Sibon I, and Smadja D
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- Humans, Female, Male, Retrospective Studies, Aged, Middle Aged, Treatment Outcome, Stroke drug therapy, Stroke diagnostic imaging, Administration, Intravenous, Ischemic Stroke drug therapy, Ischemic Stroke diagnostic imaging, Aged, 80 and over, Tenecteplase administration & dosage, Tenecteplase therapeutic use, Tenecteplase pharmacology, Fibrinolytic Agents administration & dosage, Fibrinolytic Agents therapeutic use, Fibrinolytic Agents pharmacology, Tissue Plasminogen Activator therapeutic use, Tissue Plasminogen Activator administration & dosage, Tissue Plasminogen Activator pharmacology, Thrombolytic Therapy methods
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Introduction: In intracranial medium-vessel occlusions (MeVOs), intravenous thrombolysis (IVT) shows inconsistent effectiveness and endovascular interventions remains unproven. We evaluated a new therapeutic strategy based on a second IVT using tenecteplase for MeVOs without early recanalization post-alteplase., Patients and Methods: This retrospective, comparative study included consecutively low bleeding risk MeVO patients treated with alteplase 0.9 mg/kg at two stroke centers. One center used a conventional single-IVT approach; the other applied a dual-IVT strategy, incorporating a 1-h post-alteplase MRI and additional tenecteplase, 0.25 mg/kg, if occlusion persisted. Primary outcomes were 24-h successful recanalization for efficacy and symptomatic intracranial hemorrhage (sICH) for safety. Secondary outcomes included 3-month excellent outcomes (modified Rankin Scale score of 0-1). Comparisons were conducted in the overall cohort and a propensity score-matched subgroup., Results: Among 146 patients in the dual-IVT group, 103 failed to achieve recanalization at 1 h and of these 96 met all eligible criteria and received additional tenecteplase. Successful recanalization at 24 h was higher in the 146 dual-IVT cohort patients than in the 148 single-IVT cohort patients (84% vs 61%, p < 0.0001), with similar sICH rate (3 vs 2, p = 0.68). Dual-IVT strategy was an independent predictor of 24-h successful recanalization (OR, 2.7 [95% CI, 1.52-4.88]; p < 0.001). Dual-IVT cohort patients achieved higher rates of excellent outcome (69% vs 44%, p < 0.0001). Propensity score matching analyses supported all these associations., Conclusion: In this retrospective study, a dual-IVT strategy in selected MeVO patients was associated with higher odds of 24-h recanalization, with no safety concerns. However, potential center-level confounding and biases seriously limit these findings' interpretation., Trial Registration: ClinicalTrials.gov Identifier: NCT05809921 ., Competing Interests: Declaration of conflicting interestsThe author(s) declared the following potential conflicts of interest with respect to the research, authorship, and/or publication of this article: I.S reports consultant fees for Bayer, BMS/Pfizer, Boehringer Ingelheim outside the submitted work, Medtronic, Novartis, Novo Nordisk, Bioprojet, Astra-Zeneca, Alexion and speaker activities for AstraZeneca, Bayer, BMS/Pfizer, Boehringer Ingelheim, Medtronic, Novartis, Novo Nordisk; DS reports consultant fees for BMS/Pfizer, Boehringer-Ingelheim outside the submitted work, Novartis and speaker activities for BMS/Pfizer, Boehringer-Ingelheim, Novo Nordisk, Servier, Sanofi; Other authors do not report any conflicting interests.
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- 2024
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17. Incidence and predictors of intracranial hemorrhage after intravenous thrombolysis with tenecteplase.
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Marnat G, Gerschenfeld G, Olindo S, Sibon I, Seners P, Clarençon F, Smadja D, Chausson N, Ben Hassen W, Piotin M, Caroff J, Alamowitch S, and Turc G
- Subjects
- Humans, Male, Female, Aged, Incidence, Middle Aged, Thrombolytic Therapy adverse effects, Thrombolytic Therapy methods, Registries, Tissue Plasminogen Activator adverse effects, Tissue Plasminogen Activator administration & dosage, Tissue Plasminogen Activator therapeutic use, Prospective Studies, Risk Factors, Aged, 80 and over, Administration, Intravenous, Tenecteplase adverse effects, Tenecteplase administration & dosage, Tenecteplase therapeutic use, Fibrinolytic Agents adverse effects, Fibrinolytic Agents therapeutic use, Fibrinolytic Agents administration & dosage, Intracranial Hemorrhages epidemiology, Intracranial Hemorrhages chemically induced, Ischemic Stroke drug therapy, Ischemic Stroke epidemiology
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Background: Despite its increasing use, there are limited data on the risk of intracranial hemorrhage (ICH) after intravenous thrombolysis with tenecteplase in the setting of acute ischemic stroke. Our aim was to investigate the incidence and predictors of ICH after tenecteplase administration., Methods: We reviewed data from the prospective ongoing multicenter TETRIS (Tenecteplase Treatment in Ischemic Stroke) registry. Patients with available day-1 imaging were included in this study. Clinical, imaging and biological variables were collected. Follow-up imaging performed 24 h after IVT was locally reviewed by senior neuroradiologists and neurologists. The incidence of parenchymal hematoma (PH) and any ICH were investigated. Potential predictors of PH and any ICH were assessed in multivariable logistic regressions. Subgroup analyses focusing on patients intended for endovascular treatment were performed., Results: PH and any ICH occurred in 126/1321 (incidence rate: 9.5%, 95% CI 8.1-11.2) and 521/1321 (39.4%, 95% CI 36.8-42.1) patients, respectively. Symptomatic ICH was observed in 77/1321 (5.8%; 95% CI 4.7-7.2). PH occurrence was significantly associated with poorer functional outcomes ( p < 0.0001) and death ( p < 0.0001) after 3 months. Older age (aOR = 1.03; 95% CI 1.01-1.05), male gender (aOR = 2.07; 95% CI 1.28-3.36), a history of hypertension (aOR = 2.08; 95% CI 1.19-3.62), a higher baseline NIHSS (aOR = 1.07; 95% CI 1.03-1.10) and higher admission blood glucose level (aOR = 1.12; 95% CI 1.05-1.19) were independently associated with PH occurrence. Similar associations were observed in the subgroup of patients intended for endovascular treatment., Conclusion: We quantified the incidence of ICH after IVT with tenecteplase in a real-life prospective registry and determined independent predictors of ICH. These findings allow to identify patients at high risk of ICH., Competing Interests: Declaration of conflicting interestsThe author(s) declared no potential conflicts of interest with respect to the research, authorship, and/or publication of this article.
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- 2024
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18. Persistent disabilities 28 months after COVID-19 hospitalisation, a prospective cohort study.
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Renaud B, Chocron R, Reverdito G, Blanchard A, Hua-Huy T, Diehl JL, Livrozet M, Subileau M, Lemogne C, El-Batti S, Auclin E, Jannot AS, Rance B, Mousseaux E, Smadja D, Lebeaux D, Hulot JS, Sanchez O, and Günther S
- Abstract
Background: Limited data are available on long-term respiratory disabilities in patients following acute COVID-19., Patients and Methods: This prospective, monocentric, observational cohort study included patients admitted to our hospital with acute COVID-19 between 12 March and 24 April 2020. Clinical, functional and radiological data were collected up to 28 months after hospital discharge., Results: Among 715 patients hospitalised for COVID-19, 493 (69.0%) were discharged alive. We could access complete medical records for 268 out of 493 patients (54.4%); 138 out of 268 (51.5%) exhibited persistent respiratory symptoms and agreed with the data collection and follow-up. Patients were predominantly male (64.5%), with a mean±sd age of 58.9±15.3 years. At the last follow-up, the leading symptoms were asthenia (31.5%), dyspnoea (29.8%) and neuropsychological symptoms (17.7%). Lung function improved up to the last visit. Mean diffusing capacity of the lung for carbon monoxide ( D
LCO ) was 77.8% of predicted value, total lung capacity (TLC) was 83.5% and O2 desaturation during exercise (O2 desaturation) was 2.3%. While DLCO improved over the entire period, TLC improved in the early phase and O2 desaturation in the late phase. Except for those with lung comorbidities, only one patient presented with minor functional and chest radiological alterations at 28 months., Conclusion: Patients with acute COVID-19 discharged alive showed improved clinical symptoms, lung function parameters and radiological signs up to 28 months post-infection. Persistent symptoms consisted mainly of asthenia and dyspnoea, with lung function returning to normal. One patient without prior respiratory issues exhibited moderate pulmonary fibrosis., Competing Interests: Conflict of interest: None declared., (Copyright ©The authors 2024.)- Published
- 2024
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19. Intravenous thrombolysis plus tirofiban versus tirofiban alone in Caucasian patients with acute anterior choroidal or paramedian pontine infarction.
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Toudou-Daouda M, Yatwa-Zaniwe RV, Aminou-Tassiou NR, Baby M, Soumah D, Altarcha T, Aghasaryan M, Laine O, Chausson N, and Smadja D
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Background: Tirofiban has been shown to be superior to aspirin in achieving functional independence at 3 months for acute ischemic stroke of atheromatous or microatheromatous origin. As intravenous thrombolysis (IVT) has previously been shown to be nonsuperior to aspirin in achieving functional independence at 3 months for anterior choroidal or paramedian pontine infarction (ACI/PPI), we aimed to compare the outcomes of Caucasian patients receiving IVT plus tirofiban (IVT + T) with those receiving tirofiban alone for acute ACI/PPI., Methods: A retrospective study was conducted in patients aged ≥ 18 years with ACI/PPI treated in our stroke unit between December 1, 2020, and April 30, 2023, who received therapeutic intervention within 9 hours of symptom onset or after awakening with stroke symptoms. Modified Rankin Scale (mRS) ≤ 1 at 3 months was the primary endpoint. Secondary endpoints were National Institutes of Health Stroke Scale (NIHSS) ≤ 2 at day 7 or discharge and post-procedural neurological deterioration (PPND) within 72 hours. Symptomatic intracranial hemorrhage (SICH) and major systemic bleeding (MSB) were the safety measures of the study., Results: A total of 24 patients were enrolled in the tirofiban group and 43 patients in the IVT + T group. Compared to tirofiban alone, IVT + T was associated with a higher probability of achieving mRS ≤1 at 3 months (adjusted odds ratio [aOR], 8.79; 95% confidence interval [CI], 2.06-37.52; P = 0.003) and National Institutes of Health Stroke Scale ≤2 at day 7 or discharge (aOR, 3.70; 95% CI, 1.05-12.99; P = 0.041). No significant difference was seen between the two groups in preventing postprocedural neurological deterioration. One case of SICH and two cases of MSB occurred in the IVT + T group and no cases in the tirofiban group. One case of inhospital mortality was recorded in the IVT + T group., Conclusions: Our results showed that IVT + T may be safe and effective in Caucasian patients with acute ACI/PPI., Competing Interests: There are no conflicts of interest., (Copyright: © 2024 Brain Circulation.)
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- 2024
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20. Functional Outcome and Hemorrhage Rates After Bridging Therapy With Tenecteplase or Alteplase in Patients With Large Ischemic Core.
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Gerschenfeld G, Turc G, Obadia M, Chausson N, Consoli A, Olindo S, Caroff J, Marnat G, Blanc R, Ben Hassen W, Seners P, Guillon B, Wiener E, Bourcier R, Yger M, Cho TH, Checkouri T, Gory B, Smadja D, Sibon I, Richard S, Piotin M, Eker OF, Pico F, Lapergue B, and Alamowitch S
- Subjects
- Humans, Aged, Male, Female, Middle Aged, Retrospective Studies, Aged, 80 and over, Treatment Outcome, Intracranial Hemorrhages chemically induced, Thrombectomy methods, Registries, Tenecteplase therapeutic use, Tissue Plasminogen Activator therapeutic use, Tissue Plasminogen Activator adverse effects, Fibrinolytic Agents therapeutic use, Fibrinolytic Agents adverse effects, Ischemic Stroke drug therapy
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Background and Objectives: IV tenecteplase is an alternative to alteplase before mechanical thrombectomy (MT) in patients with large-vessel occlusion (LVO) ischemic stroke. Little data are available on its use in patients with large ischemic core. We aimed to compare the efficacy and safety of both thrombolytics in this population., Methods: We conducted a retrospective analysis of patients with anterior circulation LVO strokes and diffusion-weighed imaging Alberta Stroke Program Early CT Score (DWI-ASPECTS) ≤5 treated with tenecteplase or alteplase before MT from the TETRIS (tenecteplase) and ETIS (alteplase) French multicenter registries. Primary outcome was reduced disability at 3 months (ordinal analysis of the modified Rankin scale [mRS]). Safety outcomes were 3-month mortality, parenchymal hematoma (PH), and symptomatic intracranial hemorrhage (sICH). We used propensity score overlap weighting to reduce baseline differences between treatment groups., Results: We analyzed 647 patients (tenecteplase: n = 194; alteplase: n = 453; inclusion period 2015-2022). Median (interquartile range) age was 71 (57-81) years, with NIH Stroke Scale score 19 (16-22), DWI-ASPECTS 4 (3-5), and last seen well-to-IV thrombolysis and puncture times 165 minutes (130-226) and 260 minutes (203-349), respectively. After MT, the successful reperfusion rate was 83.1%. After propensity score overlap weighting, all baseline variables were well balanced between both treatment groups. Compared with patients treated with alteplase, patients treated with tenecteplase had better 3-month mRS (common odds ratio [OR] for reduced disability: 1.37, 1.01-1.87, p = 0.046) and lower 3-month mortality (OR 0.52, 0.33-0.81, p < 0.01). There were no significant differences between thrombolytics for PH (OR 0.84, 0.55-1.30, p = 0.44) and sICH incidence (OR 0.70, 0.42-1.18, p = 0.18)., Discussion: Our data are encouraging regarding the efficacy and reassuring regarding the safety of tenecteplase compared with that of alteplase in bridging therapy for patients with LVO strokes and a large ischemic core in routine clinical care. These results support its consideration as an alternative to alteplase in bridging therapy for patients with large ischemic cores., Trials Registration Information: NCT03776877 (ETIS registry) and NCT05534360 (TETRIS registry)., Classification of Evidence: This study provides Class III evidence that patients with anterior circulation LVO stroke and DWI-ASPECTS ≤5 treated with tenecteplase vs alteplase before MT experienced better functional outcomes and lower mortality at 3 months.
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- 2024
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21. First-ever acute ischemic strokes in HIV-infected persons: A case-control study from stroke units.
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Stammler R, Guillaume J, Mazighi M, Denier C, Raynouard I, Lapergue B, De Broucker T, Meseguer E, Hosseini H, Leger A, Smadja D, Lamy C, Obadia M, and Moulignier A
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- Humans, Case-Control Studies, HIV, Retrospective Studies, Treatment Outcome, Ischemic Stroke epidemiology, Ischemic Stroke etiology, Ischemic Stroke therapy, Brain Ischemia epidemiology, Brain Ischemia therapy, Brain Ischemia complications, Stroke epidemiology, Stroke etiology, Stroke therapy, HIV Infections complications, HIV Infections drug therapy, HIV Infections epidemiology, Hypertension complications
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Objective: The stroke risk for persons living with human immunodeficiency virus (PLHIVs) doubled compared to uninfected individuals. Stroke-unit (SU)-access, acute reperfusion therapy-use and outcome data on PLHIVs admitted for acute ischemic stroke (AIS) are scarce., Methods: AIS patients admitted (01 January 2017 to 31 January 2021) to 10 representative Paris-area SUs were screened retrospectively from the National Hospitalization Database. PLHIVs were compared to age-, initial NIHSS- and sex-matched HIV-uninfected controls (HUCs). Outcome was the 90-day modified Rankin Scale score., Results: Among 126 PLHIVs with confirmed first-ever AIS, ~80% were admitted outside the thrombolysis-administration window. Despite antiretrovirals, uncontrolled plasma HIV loads exceeded 50 copies/mL (26% of all PLHIVs; 38% of those ≤55 years). PLHIVs' stroke causes by decreasing frequency were large artery atherosclerosis (LAA), undetermined, other cause, cerebral small-vessel disease (CSVD) or cardioembolism. No stroke etiology was associated with HIV duration or detectable HIVemia. MRI revealed previously unknown AIS in one in three PLHIVs, twice the HUC rate (p = 0.006). Neither group had optimally controlled modifiable cardiovascular risk factors (CVRFs): 20%-30% without specific hypertension, diabetes, and/or dyslipidemia treatments. Their stroke outcomes were comparable. Multivariable analyses retained good prognosis associated solely with initial NIHSS or reperfusion therapy. Older age and hypertension were associated with CSVD/LAA for all PLHIVs. Standard neurovascular care and reperfusion therapy were well-tolerated., Interpretation: The high uncontrolled HIV-infection rate and suboptimal CVRF treatment support heightened vigilance to counter suboptimal HIV suppression and antiretroviral adherence, and improve CVRF prevention, mainly for younger PLHIVs. Those preventive, routine measures could lower PLHIVs' AIS risk., (© 2024 The Authors. Annals of Clinical and Translational Neurology published by Wiley Periodicals LLC on behalf of American Neurological Association.)
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- 2024
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22. Transient recurrent episodes of abducens nerve palsy and cheiro-oral syndrome in a sub-occlusive carotid bulb atherosclerotic stenosis.
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Toudou-Daouda M, Yatwa-Zaniwe RV, Aminou-Tassiou NR, Chausson N, and Smadja D
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We report the case of a male in his 50s with a history of smoking admitted to our hospital for three transient recurrent episodes of less than 60 min of cheiro-oral paresthesias and binocular horizontal diplopia with convergent strabismus. On admission, his neurological examination was normal. Cerebral magnetic resonance imaging showed no cerebral lesion. Computed tomography angiography showed a sub-occlusive right carotid bulb atherosclerotic stenosis, the absence of abnormality of the subclavian arteries and the origin of the vertebral arteries, and no stenosis of the basilar artery or posterior cerebral arteries. Routine blood tests were normal with glycated hemoglobin of 6.5%. The patient underwent right carotid endarterectomy. One year after carotid endarterectomy, the patient has had no other cerebrovascular events., Competing Interests: None of the authors have any financial disclosures or conflicts of interests., (© The Author(s) 2024. Published by Oxford University Press.)
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- 2024
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23. Intravenous thrombolysis with tenecteplase versus alteplase combined with endovascular treatment of anterior circulation tandem occlusions: A pooled analysis of ETIS and TETRIS.
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Marnat G, Lapergue B, Gory B, Kyheng M, Labreuche J, Turc G, Olindo S, Sibon I, Caroff J, Smadja D, Chausson N, Clarençon F, Seners P, Bourcier R, Pop R, Olivot JM, Mazighi M, Moulin S, Janot K, Cognard C, Alamowitch S, and Gerschenfeld G
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- Humans, Tissue Plasminogen Activator therapeutic use, Tenecteplase therapeutic use, Retrospective Studies, Thrombectomy adverse effects, Treatment Outcome, Intracranial Hemorrhages etiology, Thrombolytic Therapy adverse effects, Hematoma etiology, Stroke drug therapy, Brain Ischemia drug therapy, Ischemic Stroke etiology
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Background: Tandem occlusions are a singular large vessel occlusion entity involving specific endovascular and perioperative antithrombotic management. In this context, data on safety and efficacy of prior intravenous thrombolysis (IVT) with tenecteplase is scarce. We aimed to compare IVT with tenecteplase or alteplase in patients with acute tandem occlusions intended for endovascular treatment., Patients and Methods: A retrospective pooled analysis of two large observational registries (ETIS (Endovascular Treatment of Ischemic Stroke) and TETRIS (Tenecteplase Treatment in Ischemic Stroke)) was performed on consecutive patients presenting with anterior circulation tandem occlusion treated with IVT using either alteplase (ETIS) or tenecteplase (TETRIS) followed by endovascular treatment between January 2015 and June 2022. Sensitivity analyses on atherosclerosis related tandem occlusions and on patient treated with emergent carotid stenting were conducted. Propensity score overlap weighting analyses were performed., Results: We analyzed 753 patients: 124 in the tenecteplase and 629 in the alteplase group. The overall odds of favorable outcome (3-month modified Rankin score 0-2) were comparable between both groups (49.4% vs 47.1%; OR = 1.10, 95%CI 0.85-1.41). Early recanalization, final successful recanalization and mortality favored the use of tenecteplase. The occurrence of any intracranial hemorrhage (ICH) was more frequent after tenecteplase use (OR = 2.24; 95%CI 1.75-2.86). However, risks of symptomatic ICH and parenchymal hematoma remained similar. In atherosclerotic tandems, favorable outcome, mortality, parenchymal hematoma, early recanalization, and final successful recanalization favored the tenecteplase group. In the carotid stenting subgroup, PH were less frequent in the tenecteplase group (OR = 0.18; 95%CI 0.05-0.69)., Conclusion: In patients with tandem occlusions, IVT with tenecteplase seemed reasonably safe in particular with increased early recanalization rates. These findings remain preliminary and should be further confirmed in randomized trials., Competing Interests: Declaration of Conflicting InterestsThe author(s) declared no potential conflicts of interest with respect to the research, authorship, and/or publication of this article.
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- 2024
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24. Evaluating the efficacy of Rho kinase inhibitor eye drops in the management of corneal edema: A single-center retrospective cohort study.
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Lavy I, Erdinest N, Corredores J, Wajnsztajn D, and Smadja D
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Purpose: This study aimed to evaluate the efficacy of ripasudil in managing various corneal edema conditions., Materials and Methods: This single-center retrospective analysis was conducted at Hadassah Medical Center and involved 16 patients with 17 eyes. Patients were selected based on diagnostic criteria, primarily corneal edema. The conditions were as follows, listed by frequency: postcataract surgery (31.25%), postpenetrating keratoplasty (25%), post-Descemet's membrane endothelial keratoplasty (18.75%), Fuchs' endothelial corneal dystrophy (12.5%), status post-Ahmed glaucoma valve (6.25%), and status posttrabeculectomy (6.25%). The treatment regimen involved topical administration of ripasudil hydrochloride hydrate (Glanatec
® 0.4%), administered three times a day or tailored to condition severity. Efficacy was assessed using pre- and posttreatment measurements of best-corrected visual acuity (BCVA), central corneal thickness (CCT), and endothelial cell count (ECC), along with slit-lamp and optical coherence tomography examinations., Results: The average duration of ripasudil treatment was approximately 4.9 ± 2.2 months. Significant improvements were observed in BCVA, changing from a pretreatment value of 1.106 ± 0.817 logMAR to a posttreatment value of 0.56 ± 0.57 logMAR ( P = 0.0308). CCT also showed a significant reduction, from 619.50 ± 56.36 μm pretreatment to 572.5 ± 75.48 μm posttreatment ( P = 0.0479). ECC showed a marginal but not statistically significant increase, from 849.00 ± 570.72 cells/mm² pretreatment to 874.75 ± 625.59 cells/mm² posttreatment ( P = 0.9010)., Conclusion: The study provides robust evidence supporting the use of ripasudil in managing corneal edema. Significant improvements in key ocular metrics such as BCVA and CCT were observed, enhancing the overall quality of life for patients suffering from various forms of corneal edema., Competing Interests: The authors declare that there are no conflicts of interests of this paper., (Copyright: © 2024 Taiwan J Ophthalmol.)- Published
- 2024
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25. Detection of moderate to severe middle cerebral artery atherosclerotic stenosis in stroke patients: Transcranial color-coded duplex sonography versus computed tomography angiography.
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Toudou-Daouda M, Chausson N, Smadja D, and Alecu C
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Background: Intracranial atherosclerotic stenosis is a common cause of ischemic cerebrovascular events and is associated with a high risk of stroke recurrence. This study aimed to assess the diagnostic accuracy of transcranial color-coded duplex sonography for moderate-to-severe middle cerebral artery stenosis in stroke patients., Methods: A retrospective analysis was carried out, including 31 patients aged ⩾18 years hospitalized for ischemic cerebrovascular event in whom middle cerebral artery stenosis ⩾30% was identified on computed tomography angiography. Transcranial color-coded duplex sonography findings were compared to the degree of stenosis blindly identified on the computed tomography angiography used as the reference method., Results: Overall, 27 patients had M1 stenosis and the other 4 had M2 stenosis. To detect M2 stenosis ⩾ 50% and ⩾ 70%, stenotic to pre-stenotic ratio ⩾ 2 and ⩾ 3 had a sensitivity of 100%, respectively. To detect M1 stenosis ⩾ 70%, peak systolic velocity ⩾ 300 cm/s had a sensitivity of 53.8% and specificity of 85.7% with area under the receiver-operating characteristic curve of 0.753 (95% confidence interval: 0.568-0.938; p = 0.026), and stenotic to pre-stenotic ratio ⩾ 3 had a sensitivity of 84.6% and a specificity of 78.6% (area under the curve = 0.854; 95% confidence interval: 0.707-1; p = 0.002). Middle cerebral artery/anterior cerebral artery velocity ratio < 0.7 had a sensitivity of 57.1% and specificity of 90% to detect dampened pre-stenotic flow in middle cerebral artery secondary to downstream M1 stenosis ⩾ 70% (area under the curve = 0.800; 95% confidence interval: 0.584-1; p = 0.040)., Conclusion: This study showed that stenotic to pre-stenotic ratio ⩾ 3 was more sensitive than peak systolic velocity ⩾ 300 cm/s to screen M1 stenosis ⩾ 70%. Middle cerebral artery/anterior cerebral artery ratio < 0.7 was a good indirect sign to detect dampened pre-stenotic flow due to M1 stenosis ⩾ 70%., Competing Interests: The author(s) declared no potential conflicts of interest with respect to the research, authorship, and/or publication of this article., (© The Author(s) 2023.)
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- 2024
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26. Clinical, imaging, and management features of symptomatic carotid web: Insight from CAROWEB registry.
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Olindo S, Gaillard N, Chausson N, Turpinat C, Dargazanli C, Bourgeois-Beauvais Q, Signate A, Joux J, Mejdoubi M, Piotin M, Obadia M, Desilles JP, Delvoye F, Holay Q, Gory B, Richard S, Denier C, Robinet-Borgomano E, Carle X, Desal H, Guillon B, Viguier A, Lamy M, Pico F, Landais A, Boulanger M, Renou P, Gariel F, Jean P, Yann L, Papillon L, Marnat G, and Smadja D
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- Adult, Female, Humans, Middle Aged, Carotid Arteries, Retrospective Studies, Treatment Outcome, Brain Ischemia complications, Carotid Stenosis surgery, Endarterectomy, Carotid adverse effects, Ischemic Attack, Transient epidemiology, Ischemic Attack, Transient therapy, Ischemic Attack, Transient diagnosis, Ischemic Stroke complications, Stroke diagnostic imaging, Stroke epidemiology, Stroke therapy
- Abstract
Background: Although carotid web (CaW) is increasingly diagnosed as a cause of cryptogenic stroke, data are still limited to monocentric small sample cohort. To broaden knowledge on symptomatic CaW, CAROWEB registry has been recently implemented., Aims: In a large cohort of symptomatic CaW patients, we described epidemiologic characteristics, admission clinical and imaging features, and the current management including the secondary preventive strategy choice made in comprehensive French Stroke Units., Methods: CAROWEB is an ongoing French observational multicenter registry enrolling consecutive CaW patients diagnosed after an ipsilateral ischemic stroke (IS) or transient ischemic attack (TIA). Submitted cases were validated by two experienced neurologist and neuroradiologist. Clinical, imaging, and management features were collected for this study., Results: Between June 2019 and December 2021, 244 cases were submitted by 14 centers, 42 rejected, and 202 included (IS, 91.6%; TIA, 7.9%; retinal infarction, 0.5%; mean age, 50.8 ± 12.2 years; female, 62.9%; Caucasian, 47.5%; Afro-Caribbean, 20.3%). IS patients showed median (interquartile range (IQR)) admission National Institutes of Health Stroke Scale (NIHSS) score, 8 (2-15); intracranial artery occlusion, 71.8%; ipsilateral chronic cerebral infarction (CCI), 16.3%; and reperfusion treatment, 57.3%. CaW was not identified during the mechanical thrombectomy procedure in 30 of 85 (35.3%) patients. Secondary prevention was invasive in 55.6% (stenting, n = 80; surgery, n = 30). In multivariable analysis, the invasive therapeutic option was associated with ipsilateral CCI (odds ratio (OR): 4.24 (1.27-14.2), p = 0.019) and inversely associated with risk factors (OR: 0.47 (0.24-0.91), p = 0.025) and admission NIHSS score (OR: 0.93 (0.89-0.97), p = 0.001)., Conclusion: CaW must be considered in all ethnic groups including Caucasians. Secondary prevention is heterogeneous in large French Stroke Centers. The absence of risk factors, milder severity strokes, and ipsilateral CCI were predictive variables of secondary invasive treatment. The high rate of invasive treatment suggests that medical treatment alone is deemed ineffective to avoid recurrence and emphasize the need of randomized trials., Competing Interests: Declaration of conflicting interestsThe author(s) declared no potential conflicts of interest with respect to the research, authorship, and/or publication of this article.
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- 2024
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27. Treatment of Rapid Progression of Myopia: Topical Atropine 0.05% and MF60 Contact Lenses.
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Erdinest N, Atar-Vardi M, London N, Landau D, Smadja D, Pras E, Lavy I, and Morad Y
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This retrospective study evaluates the effectiveness of combining 0.05% atropine with MF60 contact lenses in managing rapid myopia progression in children over one year. The study involved three groups: the treatment group (TG) with 15 children (53% male, average age 12.9 ± 1.04), the MF group (MF) with 12 children (50% male, average age 12.8 ± 0.8) using only MF60 lenses, and the control group (CG) with 14 children (43% male, average age 12.1 ± 0.76). Baseline myopia and axial length (AL) were similar across groups, with the TG, MF, and CG showing -4.02 ± 0.70 D, -4.18 ± 0.89 D, -3.86 ± 0.99 D, and 24.72 ± 0.73 mm, 24.98 ± 0.70 mm, 24.59 ± 1.02 mm, respectively. Prior to the study, all groups exhibited significant myopia and AL progression, with no previous myopia control management. The treatment involved daily 0.05% atropine instillation, the use of MF60 lenses and increased outdoor activity. Biannual cycloplegic refraction and slit lamp evaluations confirmed no adverse reactions. After one year, the TG showed a significant reduction in myopia and AL progression (-0.43 ± 0.46 D, p < 0.01; 0.22 ± 0.23 mm, p < 0.01), whereas the CG showed minimal change (-1.30 ± 0.43 D, p = 0.36; 0.65 ± 0.35 mm, p = 0.533). The MF group also exhibited a notable decrease (-0.74 ± 0.45 D, p < 0.01; 0.36 ± 0.23 mm). Increased outdoor activity during the treatment year did not significantly impact myopia control, suggesting its limited additional effect in this cohort. The study concludes that the combination of 0.05% atropine and peripheral defocus soft contact lenses effectively controls myopia progression in children.
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- 2024
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28. A Simple Score for Predicting Paroxysmal Atrial Fibrillation in Patients with Embolic Stroke of Undetermined Source in a Tunisian Cohort Study.
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Ben Amor S, Achour A, Elhraiech A, Jarrar E, Ghali H, Ameur OB, Amara N, Hassine A, Saied H, Neffati E, and Smadja D
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- Humans, Male, Female, Aged, Tunisia epidemiology, Middle Aged, Retrospective Studies, Cohort Studies, Electrocardiography methods, Registries, Aged, 80 and over, Echocardiography, Electrocardiography, Ambulatory methods, Risk Factors, Predictive Value of Tests, Atrial Fibrillation diagnosis, Atrial Fibrillation complications, Embolic Stroke etiology, Embolic Stroke diagnosis
- Abstract
Background: The annualized recurrent stroke rate in patients with Embolic Stroke of Undetermined Source (ESUS) under antiplatelet therapy is around 4.5%. Only a fraction of these patients will develop atrial fibrillation (FA), to which a stroke can be attributed retrospectively. The challenge is to identify patients at risk of occult AF during follow-up., Objective: This work aims to determine clinical factors and electrocardiographic and ultrasound parameters that can predict occult AF in patients with ESUS and build a simple predictive score applicable worldwide., Methods: This is a single-center, registry-based retrospective study conducted at the stroke unit of Sahloul University Hospital, Sousse, Tunisia, between January 2016 and December 2020. Consecutive patients meeting ESUS criteria were monitored for a minimum of one year, with a standardized follow-up consisting of outpatient visits, including ECG every three months and a new 24-hour Holter monitoring in case of palpitations. We performed multivariate stepwise regression to identify predictors of new paroxysmal AF among initial clinical, electrocardiographic (ECG and 24-hour Holter monitoring) and echocardiographic parameters. The coefficient of each independent covariate of the fitted multivariable model was used to generate an integerbased point-scoring system., Results: Three hundred patients met the criteria for ESUS. Among them, 42 (14%) patients showed at least one episode of paroxysmal AF during a median follow-up of two years. In univariate analysis, age, gender, coronary artery disease, history of ischemic stroke, higher NIHSS at admission and lower NIHSS at discharge, abnormal P -wave axis, prolonged P -wave duration, premature atrial contractions (PAC) frequency of more than 500/24 hours, and left atrial (LA) mean area of more than 20 cm
2 were associated with the risk of occurrence of paroxysmal AF. We proposed an AF predictive score based on (1.771 x NIHSS score at admission) + (10.015 x P -wave dispersion; coded 1 if yes and 0 if no) + (9.841x PAC class; coded 1 if ≥500 and 0 if no) + (9.828x LA class surface; coded 1 if ≥20 and 0 if no) + (0.548xNIHSS score at discharge) + 0.004. A score of ≥33 had a sensitivity of 76% and a specificity of 93%., Conclusion: In this cohort of patients with ESUS, NIHSS at both admission and discharge, Pwave dispersion, PAC≥500/24h on a 24-hour Holter monitoring, and LA surface area≥20 cm2 provide a simple AF predictive score with very reasonable sensitivity and specificity and is applicable almost worldwide. An external validation of this score is ongoing., (Copyright© Bentham Science Publishers; For any queries, please email at epub@benthamscience.net.)- Published
- 2024
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29. Differences in retinal images quality between normal and subclinical keratoconus and its association to posterior corneal asymmetry.
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Smadja D, Krauthammer M, Wajnsztajn D, Abulafia A, Zadok D, and Lavy I
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- Humans, Corneal Topography methods, Sensitivity and Specificity, ROC Curve, Cornea, Keratoconus diagnosis
- Abstract
Purpose: To compare retinal image quality in subclinical keratoconus and normal eyes using a double-pass aberrometer and to correlate it with posterior surface deformation., Methods: Sixty normal corneas were compared to 20 subclinical keratoconus (SKC) corneas. Retinal image quality was assessed using a double-pass system in all the eyes. The objective scatter index (OSI) modulation transfer function (MTF) cutoff, Strehl ratio (SR), and Predicted Visual Acuity (PVA) values at 100%, 20%, and 9% were calculated and compared between the groups. Posterior corneal asymmetry was measured using a combined Placido Dual Scheimpflug Analyzer, and correlations were tested with all optical quality parameters., Results: Significant decrease in optical quality parameters was observed in SKC eyes compared with that in normal eyes. Subclinical KC eyes expressed greater scattering (OSI = 0.66 ± 0.36 vs 0.47 ± 0.26) and reduced contrast images (MTF and SR) than normal eyes, with 38.82 ± 9.4 and 0.22 ± 0.04, and 44.35 ± 7.1 and 0.24 ± 0.04, respectively. The reduction in the image contrast parameters (MTF and SR) was strongly correlated to the level of posterior corneal asymmetry in SKC. The greater the posterior asymmetry, the more affected was the image contrast, with r = -0.63 and -0.59, respectively for MTF and SR., Conclusion: Retinal image quality was significantly more affected in eyes with subclinical keratoconus than in normal eyes. The reduction in optical quality observed in subclinical keratoconus was strongly associated with the increased asymmetry of the posterior cornea.
- Published
- 2023
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30. Influence of the Reference Center on the Calculation of Corneal Higher Order Aberrations.
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Smadja D, Greenbaum A, Shoshani A, Abulafia A, Zadok D, and Lavy I
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- Humans, Coma, Cornea, Refraction, Ocular, Corneal Topography, Corneal Wavefront Aberration diagnosis, Myopia, Hyperopia
- Abstract
Purpose: To evaluate the differences in corneal wavefront measurements in myopic and hyperopic eyes when calculated using three different reference centers and explore possible influencing factors for such differences., Methods: Corneal wavefront measurements were performed in myopic and hyperopic eyes using a GALILEI Placido Dual Scheimpflug Analyzer (Ziemer Ophthalmic Systems AG). Corneal higher order aberrations (HOAs), including total, vertical, and horizontal coma-like aberrations, spherical aberrations, and total corneal HOAs through a 6-mm pupil size, were calculated over three different reference center positions: pupil center, corneal vertex, and limbus to limbus. Values were then compared between the myopic and hyper-opic eyes, and correlations with kappa distance and spherical equivalent were tested., Results: A significant decrease in the level of total corneal HOAs (-0.04 ± 0.05 and -0.12 ± 0.09), total corneal coma (-0.07 ± 0.09 and -0.18 ± 0.12), and horizontal coma (-0.07 ± 0.11 and -0.22 ± 0.11) in myopic and hyperopic eyes, respectively, was found when recalculating from pupil center to corneal vertex centration, whereas a significant increase in the same aberrations was observed from pupil center or corneal vertex to limbus to limbus. Significant correlations were found between the kappa distance and changes in total corneal HOAs, total corneal coma, and horizontal coma from the pupil center to the corneal vertex in both groups., Conclusions: Corneal vertex centration generated the lowest level of corneal wavefront error in both groups. The differences in corneal aberrations between the reference centers for calculation were highly correlated with the kappa distance in hyperopic eyes. [ J Refract Surg . 2023;39(5):340-346.] .
- Published
- 2023
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31. Enhanced Ablation of Cornea Doped with a Fluorescein Dye Using a Visible Wavelength Laser.
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Sanjeev A, Trivedi V, Sterkin A, Smadja D, and Zalevsky Z
- Abstract
Myopia (nearsightedness) and presbyopia (aging eye) are the most common refractive errors of the human eye. Technology has advanced toward correcting aberration using various surgical procedures, including laser surgery, as well as prescribing corrective lenses. Hence, the effect of various laser wavelengths on the eye has been extensively studied over the last few decades. Usually, excimer lasers are used for this purpose, which increases the cost of the procedure because they are unique and difficult to manufacture and require regular maintenance. Due to the absorption properties, visible wavelengths do not interact with the corneal layers and hence are currently not used for eye surgery. This study presents the first clinical evidence that a 532 nm laser in combination with an eye-safe fluorescein dye that is in wide clinical use in ophthalmology can be utilized for high-precision ablation purposes due to the photochemical reaction that occurs on an ex vivo porcine eye. Our results show the promise of utilizing inexpensive visible wavelength lasers in the ablation of biological tissues, reducing the high costs of ophthalmological surgical procedures, as well as in other applications., Competing Interests: The authors declare the following competing financial interest(s): Nanodrops partially funded this research and some of the authors have equity at nanodrops., (© 2023 The Authors. Published by American Chemical Society.)
- Published
- 2023
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32. Early Impact of Laser Vision Correction (LVC) on the Stability and Quality of the Retinal Image.
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Smadja D, Erdinest N, Wajnsztajn D, Weill Y, Abulafia A, Zadok D, and Lavy I
- Abstract
This retrospective comparative study analyzes the early postoperative impact of laser vision correction for myopia on the optical quality and stability of functional vision using a double-pass aberrometer. Retinal image quality and visual function stability were assessed preoperatively, one and three months after myopic laser in situ keratomileuses (LASIK) and photorefractive keratectomy (PRK) using double-pass aberrometry (HD Analyzer, Visiometrics S.L, Terrassa, Spain). The parameters analyzed included vision break-up time (VBUT), objective scattering index (OSI), modulation transfer function (MTF), and Strehl ratio (SR). The study included 141 eyes of 141 patients, of whom 89 underwent PRK and 52 underwent LASIK. No statistically significant differences were noted between the two techniques in any analyzed parameters at three months postoperatively. However, a significant drop was observed in all parameters one month after PRK. Only the OSI and VBUT remained significantly altered from baseline at the three months follow-up visit, with an increased OSI by 0.14 +/- 0.36 ( p < 0.01) and a shortened VBUT by 0.57 +/- 2.3 s ( p < 0.01). No correlation was found between the changes in optical and visual quality parameters and age, ablation depth, or postoperative spherical equivalent. The stability and quality of the retinal images were similar between LASIK and PRK at three months postoperatively. However, significant degradation in all parameters was found one month after PRK.
- Published
- 2023
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33. Diffusion-weighted imaging hyperintensity of the striatum or "striatum sign'' in convulsive status epilepticus.
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Toudou-Daouda M, Bentamra L, Aminou-Tassiou NR, Smadja L, Soumah D, Chausson N, and Smadja D
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- Humans, Diffusion Magnetic Resonance Imaging methods, Gray Matter, Magnetic Resonance Imaging methods, Status Epilepticus diagnostic imaging
- Abstract
Competing Interests: Declaration of Competing Interest The authors declare that they have no competing interest.
- Published
- 2022
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34. Sequential intracorneal ring segment implantation followed by transepithelial phototherapeutic keratectomy and corneal cross-linking.
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Debono C, Smadja D, Saunier V, and Touboul D
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- Female, Male, Humans, Quality of Life, Retrospective Studies, Keratectomy, Cornea, Keratoconus surgery
- Abstract
Purpose: To evaluate the safety and visual outcomes of intrastromal corneal ring segment (ICRS) implantation followed by transepithelial phototherapeutic keratectomy (te-PTK) and corneal cross-linking (CXL) in patients with mild keratoconus., Methods: Patients with mild keratoconus and contact lens intolerance who underwent sequential ICRS implantation followed by phototherapeutic keratectomy and corneal CXL between April 2015 and July 2018 were retrospectively included in the study. Refractive and visual outcomes, satisfaction questionnaire and complications were recorded at the last follow-up (mean 9.5 months postoperatively)., Results: Twenty eyes of 17 patients were enrolled, including 5 women and 15 men. The mean time between the two procedures was 16 months. Based on values before the first procedure and 9.5 months after the second procedure, significant improvements were noted in uncorrected distance visual acuity (UDVA) (0.80±0.35 logMAR vs. 0.46±0.38 logMAR), corrected distance visual acuity (CDVA) (0.38±0.23 logMAR vs. 0.13±0.16 logMAR), maximal K (56.11±4 diopters [D] vs. 50.6±3.56 D), mean K (51.87±3.43 D vs. 48.45±2.91 D), cylinder (7.99±3.94 D vs. 4.23±3.49 D), and spherical equivalent (-3.84±3.36 D vs. -0.99±2.15 D) (P<0.01). Among the outcomes, we noted 5 (25%) superficial corneal scarring (haze); 75% of eyes gained>=1 logMAR line of CDVA. In all, 94.5% of patients reported that they were satisfied with their outcomes., Conclusion: Combining ICRS implantation followed by te-PTK and corneal CXL appears to be a safe and effective approach for improving visual outcomes and quality of life in keratoconus patients., (Copyright © 2022. Published by Elsevier Masson SAS.)
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- 2022
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35. Ectasia Risk Model: A Novel Method Without Cut-off Point Based on Artificial Intelligence Improves Detection of Higher-Risk Eyes.
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Santhiago MR, Araujo DC, Stival LR, Smadja D, and Veloso AA
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- Humans, Corneal Topography methods, Dilatation, Pathologic diagnosis, Case-Control Studies, Artificial Intelligence, Retrospective Studies, Postoperative Complications surgery, Cornea surgery, Keratomileusis, Laser In Situ methods
- Abstract
Purpose: To develop a new ectasia risk model through artificial intelligence (AI) and machine learning, enabling the creation of an integrated method without a cut-off point per risk factor, and subsequently better at differentiating patients at higher risk of ectasia with normal topography., Methods: This comparative case-control study included 339 eyes with normal preoperative topography, with 65 eyes that developed ectasia after laser in situ keratomileusis (ectasia group) and 274 eyes that did not develop ectasia (control group). The AI model used known risk factors to engineer 14 additional ones, totaling 20 features. In this methodology, no variable is used in isolation because its cut-off point is never considered. All separation between cases and controls is made through the interaction detected by the machine learning model that gathers the variables considered relevant. The ability to correctly separate ectatic cases identified as high risk, ectatic cases wrongly classified as low risk, and controls were illustrated by the diagram t-distributed stochastic neighbor embedding (t-SNE)., Results: Only two original variables (percent tissue altered and corneal thickness) and two derived from the feature engineering process (derivative percent tissue altered and age weighted value) were selected by the final AI model (ie, best performing AI-based model to separate patients at higher risk). The t-SNE visualization demonstrated the greater ability to differentiate between patients considered at risk by the AI-based model, without a cut-off point, compared to all other methods used alone ( P < .0001)., Conclusions: This study describes a new AI-based model that integrates different risk factors without a cut-off point, increasing the number of cases correctly identified as at higher risk. [ J Refract Surg . 2022;38(11):716-724.] .
- Published
- 2022
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36. Usefulness of anti-factor VIII IgG ELISA in acquired hemophilia A follow-up.
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Chansavang A, Philippe A, Bozinovic I, Ben Hadj Ali K, Smadja D, Helley D, Darnige L, and Mauge L
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- Autoantibodies, Enzyme-Linked Immunosorbent Assay methods, Follow-Up Studies, Humans, Immunoglobulin G, Factor VIII, Hemophilia A diagnosis
- Abstract
Acquired hemophilia A (AHA) is a rare autoimmune bleeding disorder due to the presence of neutralizing autoantibodies directed against the coagulation factor VIII (FVIII). The reference method to detect and quantify anti-FVIII antibodies is the Bethesda assay (BA), but it presents some limitations such as a lack of sensitivity for low titers of inhibitor and the need for experienced laboratory. A commercially available ELISA detecting anti-FVIII antibodies has demonstrated excellent sensitivity and specificity. The aim of our study was to assess the performance of this ELISA for the detection of anti-FVIII IgG in AHA patients during the follow-up. In total, 11 acquired hemophilia A patients were recruited, and anti-FVIII antibody levels were monitored by BA and ELISA. Anti-FVIII IgG ELISA showed 100% sensitivity and 100% specificity, and it correlated with the BA. Discrepancies observed in 13.3% of cases were consistent with patients' biological evolution. All these data suggest the possible use of anti-FVIII IgG ELISA for both diagnosis and follow-up of AHA patients., (© 2022. The Author(s), under exclusive licence to Springer-Verlag GmbH Germany, part of Springer Nature.)
- Published
- 2022
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37. The Descemet Membrane Endothelial Keratoplasty (DMEK) "Wave Maneuver".
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Lavy I, Erdinest N, Katzir A, London N, Nche EN, and Smadja D
- Abstract
A novel technique for Descemet membrane endothelial keratoplasty (DMEK) graft handling and centration without the endothelium touching the posterior part of the anterior chamber (AC), is presented here. It is particularly suitable for vitrectomized eyes, deep AC, and AC intraocular lenses (ACIOLs), potentially reducing surgery time and endothelial cell loss during surgery. This retrospective interventional case series includes 27 eyes with complex ocular pathology. All utilized a “Wave maneuver” to center an early elevated graft without completing graft centration on the bottom of the AC. Successful graft attachment and centration were evaluated intra and post-operatively. Best-corrected visual acuity (BCVA), central corneal thickness (CCT), and donor endothelial cell density (ECD) were measured pre-operatively, and three and six months post-operatively. DMEK grafts were successfully attached and centered in all cases. No maneuver-related complications were observed intraoperatively. BCVA improved from a pre-operative 0.2 ± 0.63, to 0.43 ± 0.49 and 0.76 ± 0.51 at the three- and six-month follow-ups, respectively (p < 0.01). CCT decreased from a pre-operative 742 ± 118, to 546 ± 87 and 512 ± 67 at three and six months, respectively (p < 0.01). ECD decreased from 2878 ± 419 cells/mm2 to 1153 ± 466 cells/mm2 at three and six months, respectively (p < 0.01). The “Wave maneuver” may be very beneficial in DMEK cases where the AC is either very deep or the bottom of the AC is compromised. The “Wave maneuver” learning curve was brief.
- Published
- 2022
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38. Floating aortic arch thrombus involving the left common carotid artery complicated with ischemic stroke associated with cocaine use.
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Toudou-Daouda M, Ouanounou G, Aghasaryan M, Aminou-Tassiou NR, Soumah D, Bentamra L, Smadja L, Altarcha T, Chausson N, and Smadja D
- Subjects
- Adult, Aorta, Thoracic, Carotid Artery, Common, Humans, Infarction complications, Male, Thrombectomy adverse effects, Treatment Outcome, Arterial Occlusive Diseases, Brain Ischemia complications, Brain Ischemia diagnostic imaging, Carotid Artery Diseases complications, Cocaine adverse effects, Ischemic Stroke, Stroke complications, Stroke diagnostic imaging, Thrombosis complications, Thrombosis diagnostic imaging
- Abstract
Background: Floating aortic thrombi (FLOAT) are rare, with very few cases attributed to cocaine use. We report a new case of FLOAT involving the left common carotid artery due to cocaine use, for the first time, complicated with acute ischemic stroke., Methods: We present in detail our case report, and then, a literature search in PubMed and Scopus was performed up to March 20, 2022, to review the reported cases of aortic thrombus associated with cocaine use., Results: A 39-year-old man with a history of smoking and daily cocaine use was admitted to our stroke unit for acute left-hemispheric symptoms due to carotid-Sylvian occlusion. CT angiography of the supra-aortic trunks showed FLOAT involving the left common carotid artery. The thrombus was removed successfully by endovascular thrombectomy with recanalization of carotid-Sylvian occlusion. Our literature search yielded seven reported cases of aortic thrombus due to cocaine use revealed by lower limb ischemia (3 patients), renal infarction (1 patient), abdominal pain (1 patient), bowel ischemia (1 patient), and lower limb ischemia with renal infarction (1 patient)., Conclusion: Aortic thrombus should be suspected in patients without overt cardiovascular risk factors but with a recent history of cocaine use who presents with acute ischemic stroke., (© 2022. Fondazione Società Italiana di Neurologia.)
- Published
- 2022
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39. Accuracy of the Preoperative Predicted Percentage of Tissue Altered Calculation in Refractive Surgery Planning for Myopic LASIK.
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Smadja D, Mimouni M, Shoshani A, Kaiserman I, Lavy I, and Santhiago MR
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- Humans, Reproducibility of Results, Retrospective Studies, Surgical Flaps, Keratomileusis, Laser In Situ, Myopia surgery
- Abstract
Purpose: To determine the reliability of the percentage of tissue altered (PTA) calculation as part of the planning strategy for myopic laser in situ keratomileusis (LASIK) by comparing the estimated PTA provided by preoperative calculation to the postoperative PTA actually achieved in microkeratome-assisted myopic LASIK., Methods: This retrospective study included 3,624 eyes of 3,624 patients who underwent mechanical microkeratome-assisted LASIK surgery for myopic correction. The calculated preoperative PTA values based on the planned flap thickness and ablation depth were compared with the actual achieved postoperative PTA using the difference of corneal central thickness postoperatively for assessing the achieved ablation depth and the intraoperative ultrasound-assisted flap thickness measurement. Regression analysis was performed to reveal preoperative parameters that might influence PTA calculation accuracy., Results: The mean difference between the estimated and achieved PTA was 0.451 ± 3.45% ( P < .001) (95% CI: 0.3708 to 0.5322) with a preoperative and postoperative mean PTA of 31.07 ± 4.07% and 31.52 ± 5.78%, respectively. The differences between the achieved and planned maximum ablation depth and flap thickness were 4.32 ± 13.70 µm ( P < .001) and -1.61 ± 13.66 µm ( P < .001), respectively., Conclusions: Although a statistically significant difference was found between the preoperative calculated PTA and actually achieved PTA, the difference in PTA value (less than 1%) was clinically non-significant and indicated a highly reliable metric for preoperative refractive surgery planning. [ J Refract Surg . 2022;38(7):422-427.] .
- Published
- 2022
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40. Neurorehabilitation through Hippotherapy on Neurofunctional Sequels of Stroke: Effect on Patients' Functional Independence, Sensorimotor/Cognitive Capacities and Quality of Life, and the Quality of Life of Their Caregivers-A Study Protocol.
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Viruega H, Imbernon C, Chausson N, Altarcha T, Aghasaryan M, Soumah D, Lescieux E, Flamand-Roze C, Simon O, Bedin A, Smadja D, and Gaviria M
- Abstract
Background: Stroke is a high burden illness and the second leading cause of worldwide disability with generally poor recovery rates. Robust benefits of hippotherapy, a novel neurorehabilitation approach, in functional recovery following various severe neurological disabling conditions has been shown. In the present study, we will analyze the effect of a hippotherapy program on the outcome of post-stroke patients in the first year post-stroke., Method: A randomized controlled clinical trial on the effectiveness of hippotherapy (4 weeks/18 weeks hippotherapy/conventional neurorehabilitation) versus conventional neurorehabilitation alone (22 weeks) will be conducted over 48 weeks. In the treated group, one-hour daily hippotherapy sessions will be exclusively conducted during the hippotherapy's cycles, alternated with periods of conventional neurorehabilitation. A test battery will measure both the functional and psychological outcomes. The primary endpoint will be the patient's functional independence. The secondary endpoints will measure the sensorimotor function, autonomy, and quality of life, as well as the caregivers' quality of life., Results and Conclusion: Individual brain connectome, life history and personality construct influence the brain's functional connectivity and are central to developing optimal tailored neurorehabilitation strategies. According to our current practice, hippotherapy allows the enhancement of substantial neuroplastic changes in the injured brain with significant neurological recovery. The protocol aims to confirm those issues. Trial registration in ClinicalTrials.gov NCT04759326 accessed on 19 February 2021.
- Published
- 2022
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41. Decision-Making Process for the Management of Acute Stroke in Patients on Oral Anticoagulant: From Guidelines to Clinical Routine.
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Sibon I, Mazighi M, and Smadja D
- Abstract
Background: The occurrence of both ischaemic (IS) and haemorrhagic stroke in patients on anticoagulation is a major issue due to the frequency of their prescriptions in westernised countries and the expected impact of anticoagulant activity on recanalization during an IS or on the outcomes associated with intracerebral haemorrhage (ICH). Several guidelines are available but sometimes differ in their conclusions or regarding specific issues, and their application in routine emergency settings may be limited by particular individual issues or heterogeneous local specificities. Methods: Based on the current guidelines and additional published data, the algorithms proposed in this paper aim to help the decision-making process regarding stroke management in the setting of concurrent anticoagulants by addressing specific clinical situations based on clinical variables commonly encountered in real-world practise. Results: For patients on non-vitamin K oral anticoagulants, reversion can be achieved with specific antidotes, but only idarucizumab, the specific dabigatran antidote, is indicated in both IS and ICH. Due to the low risk of a prothrombotic effect, idarucizumab can be immediately used in IS patients eligible for thrombolysis before the dabigatran concentration is known. To optimise ICH management, the time since symptom onset, with thresholds proposed at 6 and 9 hours based on the expected timing of haematoma expansion, could also to be taken into account. Conclusions: Anticoagulant reversal in patients presenting with a stroke remains a major issue, and algorithms based on a step-by-step approach may be useful for clinical practise. Real-life studies strongly support the benefits of idarucizumab availability in stroke units and emergency departments., Competing Interests: IS received fees for editorial activities with Elsevier, served as advisor for Servier and Boehringer Ingelheim, received teaching honoraria from Medtronic, BMS-Pfizer, AstraZeneca and Bayer, as well as research support from the University Hospital of Bordeaux and the French Health Ministry. MM received speaker's honoraria from Boehringer Ingelheim and consulting honoraria from Boehringer Ingelheim, Acticor Biotech, Air Liquide and Amgen. DS received speaker's honoraria and consulting honoraria from Boehringer Ingelheim., (Copyright © 2022 Sibon, Mazighi and Smadja.)
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- 2022
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42. Functional Outcome, Recanalization, and Hemorrhage Rates After Large Vessel Occlusion Stroke Treated With Tenecteplase Before Thrombectomy.
- Author
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Gerschenfeld G, Smadja D, Turc G, Olindo S, Laborne FX, Yger M, Caroff J, Gonçalves B, Seners P, Cantier M, l'Hermitte Y, Aghasaryan M, Alecu C, Marnat G, Ben Hassen W, Kalsoum E, Clarençon F, Piotin M, Spelle L, Denier C, Sibon I, Alamowitch S, and Chausson N
- Subjects
- Aged, Aged, 80 and over, Cerebral Hemorrhage complications, Female, Fibrinolytic Agents, Humans, Male, Middle Aged, Retrospective Studies, Tenecteplase therapeutic use, Thrombectomy methods, Thrombolytic Therapy methods, Treatment Outcome, Brain Ischemia complications, Brain Ischemia diagnostic imaging, Brain Ischemia drug therapy, Ischemic Stroke, Stroke complications, Stroke diagnostic imaging, Stroke drug therapy
- Abstract
Background and Objectives: To investigate in routine care the efficacy and safety of IV thrombolysis (IVT) with tenecteplase prior to mechanical thrombectomy (MT) in patients with large vessel occlusion acute ischemic strokes (LVO-AIS), either secondarily transferred after IVT or directly admitted to a comprehensive stroke center (CSC)., Methods: We retrospectively analyzed clinical and procedural data of patients treated with 0.25 mg/kg tenecteplase within 270 minutes of LVO-AIS who underwent brain angiography. The main outcome was 3-month functional independence (modified Rankin Scale score ≤2). Recanalization (revised Treatment in Cerebral Ischemia score 2b-3) was evaluated before (pre-MT) and after MT (final)., Results: We included 588 patients (median age 75 years [interquartile range (IQR) 61-84]; 315 women [54%]; median NIH Stroke Scale score 16 [IQR 10-20]), of whom 520 (88%) were secondarily transferred after IVT. Functional independence occurred in 47% (n = 269/570; 95% confidence interval [CI] 43.0-51.4) of patients. Pre-MT recanalization occurred in 120 patients (20.4%; 95% CI 17.2-23.9), at a similar rate across treatment paradigms (direct admission, n = 14/68 [20.6%]; secondary transfer, n = 106/520 [20.4%]; p > 0.99) despite a shorter median IVT to puncture time in directly admitted patients (38 [IQR 23-55] vs 86 [IQR 70-110] minutes; p < 0.001). Final recanalization was achieved in 492 patients (83.7%; 95%CI 80.4-86.6). Symptomatic intracerebral hemorrhage occurred in 2.5% of patients (n = 14/567; 95% CI 1.4-4.1)., Discussions: Tenecteplase before MT is safe, effective, and achieves a fast recanalization in everyday practice in patients secondarily transferred or directly admitted to a CSC, in line with published results. These findings should encourage its wider use in bridging therapy., Classification of Evidence: This study provides Class IV evidence that tenecteplase within 270 minutes of LVO-AIS increases the probability of functional independence., (© 2021 American Academy of Neurology.)
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- 2021
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43. Reperfusion therapy for acute ischemic stroke in older people: An observational real-life study.
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Sudre J, Venditti L, Ancelet C, Chassin O, Sarov M, Smadja D, Chausson N, Lun F, Laine O, Duron E, Verny C, Spelle L, Rouquette A, Legris N, and Denier C
- Subjects
- Age Factors, Aged, Aged, 80 and over, Female, Humans, Male, Middle Aged, Prospective Studies, Thrombectomy, Thrombolytic Therapy, Treatment Outcome, Comorbidity, Ischemic Stroke mortality, Ischemic Stroke therapy, Reperfusion, Severity of Illness Index
- Abstract
Background: While randomized clinical trials have shown the benefit of thrombolysis and endovascular thrombectomy (EVT) in patients with acute ischemic stroke (AIS), we aimed to describe in a real-life study the differences between older (>80 years old) and younger patients treated for AIS., Methods: Thousand patients treated with thrombolysis and/or EVT were consecutively included in a prospective monocentric database (admitted from December 2015 to May 2019 in our comprehensive stroke center). Demographic data with detailed history, baseline physical examinations and treatments, laboratory and imaging data, prestroke functional status, and outcome 3 months after stroke were analyzed., Results: Older patients (n = 357) had more baseline comorbidities and lower levels of prestroke independence (modified Rankin scale ≤2; 67.2% vs. 96.1%) and more severe strokes (median National Institute of Health Stroke Score [NIHSS] 15 vs. 12; p < 0.001) than younger patients (n = 643). There was no difference in the reperfusion treatments used or treatment timelines. In older patients, good functional status at 3 months was less common (29.7% vs. 61.3%) and mortality was higher (37.1% vs. 11.4%) than in younger patients. Younger age was independently associated with better prognosis (odds ratio [OR] 0.37, 95% confidence interval [CI]: 0.20-0.67; p = 0.001) and lower mortality (OR 4.38, 95% CI: 2.11-9.09; p < 0.001). Among older adults, features associated with good outcome at 3 months were age (OR 0.89, 95% CI: 0.81-0.97; p = 0.01), initial NIHSS (OR 0.89, 95% CI: 0.83-0.94; p < 0.0001), and absence of severe leukoaraiosis, anticoagulant treatment, and symptomatic intracerebral hemorrhage following reperfusion therapy (respectively, OR 0.42, 95% CI: 0.19-0.93; p = 0.03; OR = 0.07, 95% CI: 0.01-0.70; p = 0.02; and OR = 0.07, 95% CI: 0.01-0.61; p = 0.02)., Conclusion: Although reperfusion therapy was less successful in older patients, these patients may benefit from acute recanalization despite their age. With an increasing older adult population, high-quality prospective studies are still required to better predict functional outcome and clarify the criteria that would allow better selection of appropriate treatment., (© 2021 The American Geriatrics Society.)
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- 2021
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44. Stroke Prevention by Anticoagulants in Daily Practice Depending on Atrial Fibrillation Pattern and Clinical Risk Factors.
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Grimaldi-Bensouda L, Le Heuzey JY, Ferrières J, Leys D, Davy JM, Martinez M, Dialla O, Smadja D, Nighoghossian N, Benichou J, Nordon C, Touzé E, and Abenhaim L
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- Administration, Oral, Aged, Aged, 80 and over, Atrial Fibrillation complications, Case-Control Studies, Dabigatran therapeutic use, Female, Heart Disease Risk Factors, Humans, Intracranial Hemorrhages complications, Intracranial Hemorrhages prevention & control, Ischemic Stroke prevention & control, Male, Middle Aged, Risk Factors, Treatment Outcome, Vitamin K antagonists & inhibitors, Anticoagulants therapeutic use, Atrial Fibrillation drug therapy, Stroke prevention & control
- Abstract
Background and Purpose: The objective of the study was to assess the effectiveness of individual direct oral anticoagulants versus vitamin K antagonists for primary prevention of stroke (ischemic and hemorrhagic) in routine clinical practice in patients with various clinical risk factors depending on their atrial fibrillation (AF) patterns., Methods: A nested case-referent study was conducted using data from 2 national registries of patients with stroke and AF. Stroke cases with previous history of AF were matched to up to 2 randomly selected referent patients with AF and no stroke. The association of individual anticoagulant use with ischemic or hemorrhagic stroke was studied in patients with or without permanent AF using multivariable conditional logistic models, controlled for clinically significant risk factors and multiple other cardiovascular risk factors., Results: In total, 2586 stroke cases with previous AF and 4810 nonstroke referent patients with AF were retained for the study. Direct oral anticoagulant users had lower odds of stroke of any type than vitamin K antagonist users: the adjusted-matched OR for ischemic stroke were 0.70 (95% CI, 0.50–0.98) for dabigatran, 0.68 (95% CI, 0.53–0.86) for rivaroxaban, and 0.73 (95% CI, 0.52–1.02) for apixaban while for hemorrhagic stroke they were 0.31 (95% CI, 0.14–0.68), 0.64 (95% CI, 0.39–1.06), and 0.70 (95% CI, 0.33–1.49), respectively. The effects of individual direct oral anticoagulants relative to vitamin K antagonists were similar in permanent AF and nonpermanent AF patients., Conclusions: Similar results were observed for each direct oral anticoagulant in real life as those observed in the pivotal clinical trials. The pattern of AF did not affect the outcome.
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- 2021
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45. Influence of Reading on Smartphone Screens on Visual Optical Quality Metrics and Tear Film Stability.
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Bettach E, Zadok D, Abulafia A, Shoshani A, Ghebali RA, Weill Y, and Smadja D
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- Aberrometry, Adolescent, Adult, Female, Healthy Volunteers, Humans, Male, Middle Aged, Prospective Studies, Visual Acuity physiology, Young Adult, Computer Terminals, Reading, Retina physiopathology, Smartphone instrumentation, Tears physiology
- Abstract
Purpose: To evaluate the impact of a prolonged reading session on a smartphone screen on optical quality metrics and tear film stability., Methods: This prospective study was conducted in 41 healthy volunteers who were asked to read an article on a smartphone screen for 20 minutes. The following tests were performed before the reading task in this consecutive order and repeated after the reading task in the same order: automated noninvasive tear break-up time, optical quality assessment including Objective Scatter Index (OSI), modulation transfer function, Strehl ratio, and tear film dynamic analysis as follows: vision break-up time (VBUT) as a function of OSI changes within 20 seconds, using a double-pass aberrometer imaging system, and fluorescein tear break-up time (FBUT) measured using the slit lamp., Results: All break-up time-related parameters (noninvasive tear break-up time, FBUT and VBUT) were significantly reduced after the reading task (P < 0.01). The OSI was significantly worsened after the reading task (P = 0.01), whereas all the other optical quality metrics (modulation transfer function and Strehl ratio) slightly deteriorated, were not statistically significant. A significant correlation was found between the shortening of the FBUT, VBUT, and the worsening of the OSI (r = -0.33, P < 0.05)., Conclusions: A reading session on a smartphone screen in healthy subjects was found to significantly affect the tear film stability and objectively worsen the retinal image quality., Competing Interests: The authors have no funding or conflicts of interest to disclose., (Copyright © 2021 Wolters Kluwer Health, Inc. All rights reserved.)
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- 2021
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46. Isolated cerebellar nodulus infarction: Two case reports and literature review.
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Toudou-Daouda M, Alecu C, Chausson N, Aminou-Tassiou NR, Smadja L, Soumah D, Aghasaryan M, Al Tarcha T, and Smadja D
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- Aged, Brain Stem Infarctions complications, Cerebellar Diseases complications, Humans, Male, Nystagmus, Pathologic etiology, Vertigo diagnostic imaging, Vertigo etiology, Vestibular Neuronitis diagnostic imaging, Vestibular Neuronitis etiology, Brain Stem Infarctions diagnostic imaging, Cerebellar Diseases diagnostic imaging, Nystagmus, Pathologic diagnostic imaging
- Abstract
Background: Isolated cerebellar nodulus infarction (ICNI) is rare and has great clinical similarity with acute peripheral vestibulopathy (APV), from which it is difficult to distinguish. We report two cases of ICNI followed by a literature review to identify the discriminant clinical elements that differentiate ICNI from APV., Methods: We describe in detail our 2 cases. Besides, a literature search in Medline via PubMed and Scopus was performed up to May 17, 2020. Clinical characteristics, mainly of well-described cases, were extracted and analyzed., Results: Our search yielded 43 total publications, among which 13 were selected, including 23 patients. Spontaneous or positional rotatory vertigo with unidirectional spontaneous horizontal nystagmus, associated with the postural imbalance and unilateral lateropulsion or fall on Romberg's test, was the most common clinical picture. According to our literature review, the discriminant clinical elements which differentiate ICNI from APV were direction-changing gaze-evoked nystagmus, bilateral lateropulsion or fall on Romberg's test, and normal horizontal head impulse test. Our two patients reported a positional fleeting abnormal visual perception of spatial orientation of objects. We proposed this symptom as a discriminant clinical element., Conclusion: The ICNI constitutes a difficult differential diagnosis of APV. Through our two patients reported here, we proposed a supplementary discriminant symptom helpful for the clinical diagnosis., Competing Interests: Declaration of Competing Interest The authors declare that they have no known competing financial interests or personal relationships that could have appeared to influence the work reported in this paper., (Copyright © 2021 Elsevier Ltd. All rights reserved.)
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- 2021
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47. Optical changes and apparent emmetropization in a patient with a peripheral unilateral lens coloboma.
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Assayag E, Zadok D, Smadja D, Roditi E, Shoshani A, and Weill Y
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- Adult, Corneal Topography, Humans, Lens Implantation, Intraocular, Male, Visual Acuity, Young Adult, Astigmatism diagnosis, Coloboma diagnosis
- Abstract
Lens coloboma is a developmental defect resulting from abnormalities of the zonules and ciliary body. It may present as an isolated pathology or be accompanied by anomalies in different ocular structures. We report the case of a 20-year-old man referred for evaluation of anisometropic amblyopia in the right eye. Manifest refraction was -2.25 +3.00 ×35 in the right eye; corrected distance visual acuity, 20/50. Corneal topography revealed regular astigmatism of +2.46 D at 124°, and wavefront aberrometry revealed an irregular internal astigmatism of +6.27 D at 35°. Only after full pupillary dilation was a peripheral lens coloboma observed. This case demonstrates that even minor distortions of clear and normally positioned lenses may lead to amblyopia and raises the possibility that corneal changes may occur developmentally through the process of emmetropization partly to compensate for lenticular astigmatism arising from the coloboma., (Copyright © 2021 American Association for Pediatric Ophthalmology and Strabismus. Published by Elsevier Inc. All rights reserved.)
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- 2021
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48. Carotid webs associated with ischemic stroke. Updated general review and research directions.
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Olindo S, Marnat G, Chausson N, Turpinat C, Smadja D, and Gaillard N
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- Carotid Arteries, Endarterectomy, Carotid, Humans, Stents, Treatment Outcome, Brain Ischemia, Carotid Stenosis, Ischemic Stroke
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Carotid web (CaW) is an intimal variant of fibromuscular dysplasia strongly associated with ipsilateral cerebral infarction. Although considered rare, it is a recent and increasing concern for physicians involved in stroke diagnosis and management. The present general review relies on a systematic literature analysis and aims to update readers on the latest knowledge in the field of symptomatic CaW (syCaW). CaW associated with ipsilateral cerebral infarction or transient ischemic attack has been identified in 189 patients. Ischemic strokes (IS) mostly occur in middle age (mean 46 years) and predominately in females (66%). The high frequency of African descendant patients among case reports and series (58%) suggests an ethnic susceptibility for CaW development. CaW features are characterised by a shelf-like intraluminal defect on contrast sagittal imaging, a linear defect that splits the lumen on axial section, a post-contrast stagnation rostral to the lesion and a frequent contralateral mirrored CaW (26.6%). An artery-to-artery embolism mechanism is widely accepted via CaW blood stasis, thrombus formation and clot fragmentation scattered by blood flow. Therefore, cerebral infarctions are often large related to a high proportion of proximal occlusion (62.5%). CaW confers a high rate of IS recurrence despite standard anti-platelet treatment that reaches 33.3% of patients prospectively followed with a median time to event of one year. Although no randomised therapeutic studies are available, surgery (n=39) or stenting (n=50) have been often proposed and seem to avoid recurrences. CaW clearly emerges as a cause of cryptogenic embolic stroke and should be systematically investigated in routine. A large number of points remain to be elucidated and CaW patients should be steadily included in registries and randomised therapeutic studies., (Copyright © 2020. Published by Elsevier Masson SAS.)
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- 2021
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49. Interface Fluid Syndrome 2 Decades After Laser-Assisted In situ Keratomileusis.
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Assayag E, Smadja D, Roditi E, Zadok D, Abulafia A, and Weill Y
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- Aged, 80 and over, Cornea, Humans, Lasers, Male, Tomography, Optical Coherence, Corneal Edema diagnosis, Corneal Edema etiology, Corneal Edema surgery, Descemet Stripping Endothelial Keratoplasty, Keratomileusis, Laser In Situ adverse effects
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Purpose: To report a case of late-onset interface fluid syndrome (IFS) after laser-assisted in situ keratomileusis (LASIK)., Methods: A 94-year-old man was referred for evaluation because of persistent corneal edema 10 days after Descemet Stripping Automated Endothelial Keratoplasty (DSAEK) for pseudophakic bullous keratopathy., Results: After an uneventful DSAEK, the patient was treated with topical antibiotics and steroids. On presentation, a well positioned and oriented DSAEK graft was observed in the right eye, yet the cornea was edematous. Applanation tonometry was normal. Anterior-segment optical coherence tomography (AS-OCT) revealed a LASIK flap with a fluid cleft beneath it. Requery confirmed that LASIK was performed 21 years ago. Topical steroids were stopped, and after 2 weeks, the cornea was clear, and AS-OCT revealed complete resolution of the interface fluid., Conclusions: Even decades later, IFS should be considered as a source of corneal edema in patients after LASIK. Monitoring these patients with AS-OCT is recommended., Competing Interests: The authors have no funding or conflicts of interest to disclose., (Copyright © 2021 Contact Lens Association of Ophthalmologists.)
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- 2021
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50. Stroke Recurrence in First-Ever Symptomatic Carotid Web: A Cohort Study.
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Olindo S, Chausson N, Signate A, Mecharles S, Hennequin JL, Saint-Vil M, Edimonana-Kaptue M, Jeannin S, Landais A, Cabre P, Sibon I, Smadja D, and Joux J
- Abstract
Background and Purpose: Carotid web (CaW) is an intimal variant of fibromuscular dysplasia responsible for ipsilateral cerebral ischemic events (CIE). Symptomatic CaW likely has a high risk of recurrent CIE, but no salient prospective data are available. We aimed to assess recurrence rate and its predictors after a first-ever CIE., Methods: Consecutive Afro-Caribbean patients who had cryptogenic first-ever CIEs (ischemic stroke [IS] or transient ischemic attack [TIA]) associated with ipsilateral CaW were included in this multicenter observational cohort study. The follow-up (January 2008 to March 2019) focused on CIE recurrences. Kaplan-Meier method assessed rates of recurrences and Cox proportional hazards regression analyzed risk factors., Results: Ninety-two patients (79 first-ever ISs and 13 TIAs; mean age±standard deviation, 49.8±9.9 years; 52 [56.5%] women) were included. During a mean follow-up of 50.5±29.6 months, 19 (20.7%) patients experienced recurrent ipsilateral CIEs (16 ISs and three TIAs). Of 23 patients receiving surgery/stenting treatment, no recurrence occurred after the intervention (median follow-up, 39.8 months [interquartile range, 27.6 to 72.4]). Under medical treatment alone, the annual recurrent CIE rate was 6.9%, and the cumulative rate was 4.4% at 30-day, 10.8% at 1-year, 19.8% at 2-year, 23.2% at 3-year, and 27.3% at 5-year. Presence of silent cerebral infarctions was the only independent risk factor of CIE recurrences (hazard ratio, 6.99; 95% confidence interval, 2.4 to 20.4; P=0.004)., Conclusions: Under medical treatment alone, symptomatic CaW was associated with a high rate of recurrence that reached 27.3% at 5-year. Surgery/stenting seems to be efficient, and randomized control trials are required to confirm the benefit of these interventions.
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- 2021
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