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  1. Article ; Online: Isolated post SARS-CoV-2 diplopia.

    Faucher, Alice / Rey, Pierre-Antoine / Aguadisch, Elise / Degos, Bertrand

    Journal of neurology

    2020  Volume 267, Issue 11, Page(s) 3128–3129

    MeSH term(s) Betacoronavirus ; COVID-19 ; Coronavirus Infections/complications ; Diplopia/virology ; Humans ; Male ; Obesity/complications ; Oculomotor Nerve Diseases/virology ; Pandemics ; Pneumonia, Viral/complications ; SARS-CoV-2 ; Young Adult
    Keywords covid19
    Language English
    Publishing date 2020-06-12
    Publishing country Germany
    Document type Case Reports ; Letter
    ZDB-ID 187050-6
    ISSN 1432-1459 ; 0340-5354 ; 0012-1037 ; 0939-1517 ; 1619-800X
    ISSN (online) 1432-1459
    ISSN 0340-5354 ; 0012-1037 ; 0939-1517 ; 1619-800X
    DOI 10.1007/s00415-020-09987-x
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  2. Article ; Online: Contribution of MRI for the Early Diagnosis of Parkinsonism in Patients with Diagnostic Uncertainty.

    Chougar, Lydia / Faucher, Alice / Faouzi, Johann / Lejeune, François-Xavier / Gama Lobo, Gonçalo / Jovanovic, Carna / Cormier, Florence / Dupont, Gwendoline / Vidailhet, Marie / Corvol, Jean-Christophe / Colliot, Olivier / Lehéricy, Stéphane / Grabli, David / Degos, Bertrand

    Movement disorders : official journal of the Movement Disorder Society

    2024  

    Abstract: Background: International clinical criteria are the reference for the diagnosis of degenerative parkinsonism in clinical research, but they may lack sensitivity and specificity in the early stages.: Objectives: To determine whether magnetic resonance ...

    Abstract Background: International clinical criteria are the reference for the diagnosis of degenerative parkinsonism in clinical research, but they may lack sensitivity and specificity in the early stages.
    Objectives: To determine whether magnetic resonance imaging (MRI) analysis, through visual reading or machine-learning approaches, improves diagnostic accuracy compared with clinical diagnosis at an early stage in patients referred for suspected degenerative parkinsonism.
    Materials: Patients with initial diagnostic uncertainty between Parkinson's disease (PD), progressive supranuclear palsy (PSP), and multisystem atrophy (MSA), with brain MRI performed at the initial visit (V1) and available 2-year follow-up (V2), were included. We evaluated the accuracy of the diagnosis established based on: (1) the international clinical diagnostic criteria for PD, PSP, and MSA at V1 ("Clin1"); (2) MRI visual reading blinded to the clinical diagnosis ("MRI"); (3) both MRI visual reading and clinical criteria at V1 ("MRI and Clin1"), and (4) a machine-learning algorithm ("Algorithm"). The gold standard diagnosis was established by expert consensus after a 2-year follow-up.
    Results: We recruited 113 patients (53 with PD, 31 with PSP, and 29 with MSA). Considering the whole population, compared with clinical criteria at the initial visit ("Clin1": balanced accuracy, 66.2%), MRI visual reading showed a diagnostic gain of 14.3% ("MRI": 80.5%; P = 0.01), increasing to 19.2% when combined with the clinical diagnosis at the initial visit ("MRI and Clin1": 85.4%; P < 0.0001). The algorithm achieved a diagnostic gain of 9.9% ("Algorithm": 76.1%; P = 0.08).
    Conclusion: Our study shows the use of MRI analysis, whether by visual reading or machine-learning methods, for early differentiation of parkinsonism. © 2024 The Authors. Movement Disorders published by Wiley Periodicals LLC on behalf of International Parkinson and Movement Disorder Society.
    Language English
    Publishing date 2024-03-14
    Publishing country United States
    Document type Journal Article
    ZDB-ID 607633-6
    ISSN 1531-8257 ; 0885-3185
    ISSN (online) 1531-8257
    ISSN 0885-3185
    DOI 10.1002/mds.29760
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  3. Article ; Online: Isolated post SARS-CoV-2 diplopia

    Faucher, Alice / Rey, Pierre-Antoine / Aguadisch, Elise / Degos, Bertrand

    Journal of Neurology ; ISSN 0340-5354 1432-1459

    2020  

    Keywords Neurology ; Clinical Neurology ; covid19
    Language English
    Publisher Springer Science and Business Media LLC
    Publishing country us
    Document type Article ; Online
    DOI 10.1007/s00415-020-09987-x
    Database BASE - Bielefeld Academic Search Engine (life sciences selection)

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  4. Article ; Online: Parasympathetic autonomic dysfunction is more often evidenced than sympathetic autonomic dysfunction in fluctuating and polymorphic symptoms of "long-COVID" patients.

    Zanin, Adrien / Amah, Guy / Chakroun, Sahar / Testard, Pauline / Faucher, Alice / Le, Thi Yen Vy / Slama, Dorsaf / Le Baut, Valérie / Lozeron, Pierre / Salmon, Dominique / Kubis, Nathalie

    Scientific reports

    2023  Volume 13, Issue 1, Page(s) 8251

    Abstract: Several disabling symptoms potentially related to dysautonomia have been reported in "long-COVID" patients. Unfortunately, these symptoms are often nonspecific, and autonomic nervous system explorations are rarely performed in these patients. This study ... ...

    Abstract Several disabling symptoms potentially related to dysautonomia have been reported in "long-COVID" patients. Unfortunately, these symptoms are often nonspecific, and autonomic nervous system explorations are rarely performed in these patients. This study aimed to evaluate prospectively a cohort of long-COVID patients presenting severe disabling and non-relapsing symptoms of potential dysautonomia and to identify sensitive tests. Autonomic function was assessed by clinical examination, the Schirmer test; sudomotor evaluation, orthostatic blood pressure (BP) variation, 24-h ambulatory BP monitoring for sympathetic evaluation, and heart rate variation during orthostatism, deep breathing and Valsalva maneuvers for parasympathetic evaluation. Test results were considered abnormal if they reached the lower thresholds defined in publications and in our department. We also compared mean values for autonomic function tests between patients and age-matched controls. Sixteen patients (median age 37 years [31-43 years], 15 women) were included in this study and referred 14.5 months (median) [12.0-16.5 months] after initial infection. Nine had at least one positive SARS-CoV-2 RT-PCR or serology result. Symptoms after SARS-CoV-2 infection were severe, fluctuating and disabling with effort intolerance. Six patients (37.5%) had one or several abnormal test results, affecting the parasympathetic cardiac function in five of them (31%). Mean Valsalva score was significantly lower in patients than in controls. In this cohort of severely disabled long-COVID patients, 37.5% of them had at least one abnormal test result showing a possible contribution of dysautonomia to these nonspecific symptoms. Interestingly, mean values of the Valsalva test were significantly lower in patients than in control subjects, suggesting that normal values thresholds might not be appropriate in this population.
    MeSH term(s) Humans ; Female ; Adult ; COVID-19 ; SARS-CoV-2 ; Autonomic Nervous System ; Primary Dysautonomias/diagnosis ; Cardiovascular Physiological Phenomena ; Heart Rate/physiology
    Language English
    Publishing date 2023-05-22
    Publishing country England
    Document type Journal Article
    ZDB-ID 2615211-3
    ISSN 2045-2322 ; 2045-2322
    ISSN (online) 2045-2322
    ISSN 2045-2322
    DOI 10.1038/s41598-023-35086-8
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  5. Article ; Online: Comparison of mean diffusivity, R2* relaxation rate and morphometric biomarkers for the clinical differentiation of parkinsonism.

    Chougar, Lydia / Lejeune, François-Xavier / Faouzi, Johann / Morino, Benjamin / Faucher, Alice / Hoyek, Nadine / Grabli, David / Cormier, Florence / Vidailhet, Marie / Corvol, Jean-Christophe / Colliot, Olivier / Degos, Bertrand / Lehéricy, Stéphane

    Parkinsonism & related disorders

    2023  Volume 108, Page(s) 105287

    Abstract: Introduction: Quantitative biomarkers for clinical differentiation of parkinsonian syndromes are still lacking. Our aim was to evaluate the value of combining clinically feasible manual measurements of R2* relaxation rates and mean diffusivity (MD) in ... ...

    Abstract Introduction: Quantitative biomarkers for clinical differentiation of parkinsonian syndromes are still lacking. Our aim was to evaluate the value of combining clinically feasible manual measurements of R2* relaxation rates and mean diffusivity (MD) in subcortical regions and brainstem morphometric measurements to improve the discrimination of parkinsonian syndromes.
    Methods: Twenty-two healthy controls (HC), 25 patients with Parkinson's disease (PD), 19 with progressive supranuclear palsy (PSP) and 27 with multiple system atrophy (MSA, 21 with the parkinsonian variant -MSAp, 6 with the cerebellar variant -MSAc) were recruited. R2*, MD measurements and morphometric biomarkers including the midbrain to pons area ratio and the Magnetic Resonance Parkinsonism Index (MRPI) were compared between groups and their diagnostic performances were assessed.
    Results: Morphometric biomarkers discriminated better patients with PSP (ratio: AUC 0.89, MRPI: AUC 0.89) and MSAc (ratio: AUC 0.82, MRPI: AUC 0.75) from other groups. R2* and MD measurements in the posterior putamen performed better in separating patients with MSAp from PD (R2*: AUC 0.89; MD: AUC 0.89). For the three-class classification "MSA vs PD vs PSP", the combination of MD and R2* measurements in the posterior putamen with morphometric biomarkers (AUC: 0.841) outperformed each marker separately. At the individual-level, there were seven discordances between imaging-based prediction and clinical diagnosis involving MSA. Using the new Movement Disorder Society criteria for the diagnosis of MSA, three of these seven patients were clinically reclassified as predicted by quantitative imaging.
    Conclusion: Combining R2* and MD measurements in the posterior putamen with morphometric biomarkers improves the discrimination of parkinsonism.
    MeSH term(s) Humans ; Parkinsonian Disorders/pathology ; Parkinson Disease ; Supranuclear Palsy, Progressive/pathology ; Diffusion Magnetic Resonance Imaging ; Brain Stem/pathology ; Multiple System Atrophy/pathology ; Magnetic Resonance Imaging/methods ; Diagnosis, Differential
    Language English
    Publishing date 2023-01-18
    Publishing country England
    Document type Journal Article ; Research Support, Non-U.S. Gov't
    ZDB-ID 1311489-x
    ISSN 1873-5126 ; 1353-8020
    ISSN (online) 1873-5126
    ISSN 1353-8020
    DOI 10.1016/j.parkreldis.2023.105287
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  6. Article ; Online: Neuromelanin-Sensitive Magnetic Resonance Imaging Changes in the Locus Coeruleus/Subcoeruleus Complex in Patients with Typical and Atypical Parkinsonism.

    Nobileau, Alexis / Gaurav, Rahul / Chougar, Lydia / Faucher, Alice / Valabrègue, Romain / Mangone, Graziella / Leu-Semenescu, Smaranda / Lejeune, François-Xavier / Corvol, Jean-Christophe / Arnulf, Isabelle / Vidailhet, Marie / Grabli, David / Degos, Bertrand / Lehéricy, Stéphane

    Movement disorders : official journal of the Movement Disorder Society

    2023  Volume 38, Issue 3, Page(s) 479–484

    Abstract: Background: The locus coeruleus/subcoeruleus complex (LC/LsC) is a structure comprising melanized noradrenergic neurons.: Objective: To study the LC/LsC damage across Parkinson's disease (PD) and atypical parkinsonism in a large group of subjects.: ...

    Abstract Background: The locus coeruleus/subcoeruleus complex (LC/LsC) is a structure comprising melanized noradrenergic neurons.
    Objective: To study the LC/LsC damage across Parkinson's disease (PD) and atypical parkinsonism in a large group of subjects.
    Methods: We studied 98 healthy control subjects, 47 patients with isolated rapid eye movement sleep behavior disorder (RBD), 75 patients with PD plus RBD, 142 patients with PD without RBD, 19 patients with progressive supranuclear palsy (PSP), and 19 patients with multiple system atrophy (MSA). Twelve patients with MSA had proven RBD. LC/LsC signal intensity was derived from neuromelanin magnetic resonance imaging using automated software.
    Results: The signal intensity was reduced in all parkinsonian syndromes compared with healthy control subjects, except in PD without RBD. The signal intensity decreased as age increased. Moreover, the signal intensity was lower in MSA than in isolated RBD and PD without RBD groups. In PD, the signal intensity correlated negatively with the percentage of REM sleep without atonia. There were no differences in signal intensity between PD plus RBD, PSP, and MSA.
    Conclusions: Neuromelanin signal intensity was reduced in all parkinsonian disorders, except in PD without RBD. The presence of RBD in parkinsonian disorders appears to be associated with lower neuromelanin signal intensity. Furthermore, lower LC/LsC signal changes in PSP could be partly caused by the effect of age. © 2023 The Authors. Movement Disorders published by Wiley Periodicals LLC on behalf of International Parkinson and Movement Disorder Society.
    MeSH term(s) Humans ; Locus Coeruleus/diagnostic imaging ; Locus Coeruleus/pathology ; Parkinsonian Disorders/complications ; Parkinson Disease/complications ; Parkinson Disease/diagnostic imaging ; Parkinson Disease/pathology ; Supranuclear Palsy, Progressive/pathology ; Multiple System Atrophy/pathology ; Magnetic Resonance Imaging/methods
    Chemical Substances neuromelanin
    Language English
    Publishing date 2023-01-02
    Publishing country United States
    Document type Journal Article ; Research Support, Non-U.S. Gov't
    ZDB-ID 607633-6
    ISSN 1531-8257 ; 0885-3185
    ISSN (online) 1531-8257
    ISSN 0885-3185
    DOI 10.1002/mds.29309
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  7. Article ; Online: Parasympathetic autonomic dysfunction is more often evidenced than sympathetic autonomic dysfunction in fluctuating and polymorphic symptoms of "long-COVID" patients

    Adrien Zanin / Guy Amah / Sahar Chakroun / Pauline Testard / Alice Faucher / Thi Yen Vy Le / Dorsaf Slama / Valérie Le Baut / Pierre Lozeron / Dominique Salmon / Nathalie Kubis

    Scientific Reports, Vol 13, Iss 1, Pp 1-

    2023  Volume 12

    Abstract: Abstract Several disabling symptoms potentially related to dysautonomia have been reported in “long-COVID” patients. Unfortunately, these symptoms are often nonspecific, and autonomic nervous system explorations are rarely performed in these patients. ... ...

    Abstract Abstract Several disabling symptoms potentially related to dysautonomia have been reported in “long-COVID” patients. Unfortunately, these symptoms are often nonspecific, and autonomic nervous system explorations are rarely performed in these patients. This study aimed to evaluate prospectively a cohort of long-COVID patients presenting severe disabling and non-relapsing symptoms of potential dysautonomia and to identify sensitive tests. Autonomic function was assessed by clinical examination, the Schirmer test; sudomotor evaluation, orthostatic blood pressure (BP) variation, 24-h ambulatory BP monitoring for sympathetic evaluation, and heart rate variation during orthostatism, deep breathing and Valsalva maneuvers for parasympathetic evaluation. Test results were considered abnormal if they reached the lower thresholds defined in publications and in our department. We also compared mean values for autonomic function tests between patients and age-matched controls. Sixteen patients (median age 37 years [31–43 years], 15 women) were included in this study and referred 14.5 months (median) [12.0–16.5 months] after initial infection. Nine had at least one positive SARS-CoV-2 RT-PCR or serology result. Symptoms after SARS-CoV-2 infection were severe, fluctuating and disabling with effort intolerance. Six patients (37.5%) had one or several abnormal test results, affecting the parasympathetic cardiac function in five of them (31%). Mean Valsalva score was significantly lower in patients than in controls. In this cohort of severely disabled long-COVID patients, 37.5% of them had at least one abnormal test result showing a possible contribution of dysautonomia to these nonspecific symptoms. Interestingly, mean values of the Valsalva test were significantly lower in patients than in control subjects, suggesting that normal values thresholds might not be appropriate in this population.
    Keywords Medicine ; R ; Science ; Q
    Language English
    Publishing date 2023-05-01T00:00:00Z
    Publisher Nature Portfolio
    Document type Article ; Online
    Database BASE - Bielefeld Academic Search Engine (life sciences selection)

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  8. Article ; Online: Regional Selectivity of Neuromelanin Changes in the Substantia Nigra in Atypical Parkinsonism.

    Chougar, Lydia / Arsovic, Emina / Gaurav, Rahul / Biondetti, Emma / Faucher, Alice / Valabrègue, Romain / Pyatigorskaya, Nadya / Dupont, Gwendoline / Lejeune, François-Xavier / Cormier, Florence / Corvol, Jean-Christophe / Vidailhet, Marie / Degos, Bertrand / Grabli, David / Lehéricy, Stéphane

    Movement disorders : official journal of the Movement Disorder Society

    2022  Volume 37, Issue 6, Page(s) 1245–1255

    Abstract: Background: Neurodegeneration in the substantia nigra pars compacta (SNc) in parkinsonian syndromes may affect the nigral territories differently.: Objective: The objective of this study was to investigate the regional selectivity of ... ...

    Abstract Background: Neurodegeneration in the substantia nigra pars compacta (SNc) in parkinsonian syndromes may affect the nigral territories differently.
    Objective: The objective of this study was to investigate the regional selectivity of neurodegenerative changes in the SNc in patients with Parkinson's disease (PD) and atypical parkinsonism using neuromelanin-sensitive magnetic resonance imaging (MRI).
    Methods: A total of 22 healthy controls (HC), 38 patients with PD, 22 patients with progressive supranuclear palsy (PSP), 20 patients with multiple system atrophy (MSA, 13 with the parkinsonian variant, 7 with the cerebellar variant), 7 patients with dementia with Lewy body (DLB), and 4 patients with corticobasal syndrome were analyzed. volume and signal-to-noise ratio (SNR) values of the SNc were derived from neuromelanin-sensitive MRI in the whole SNc. Analysis of signal changes was performed in the sensorimotor, associative, and limbic territories of the SNc.
    Results: SNc volume and corrected volume were significantly reduced in PD, PSP, and MSA versus HC. Patients with PSP had lower volume, corrected volume, SNR, and contrast-to-noise ratio than HC and patients with PD and MSA. Patients with PSP had greater SNR reduction in the associative region than HC and patients with PD and MSA. Patients with PD had reduced SNR in the sensorimotor territory, unlike patients with PSP. Patients with MSA did not differ from patients with PD.
    Conclusions: This study provides the first MRI comparison of the topography of neuromelanin changes in parkinsonism. The spatial pattern of changes differed between PSP and synucleinopathies. These nigral topographical differences are consistent with the topography of the extranigral involvement in parkinsonian syndromes. © 2022 International Parkinson and Movement Disorder Society.
    MeSH term(s) Humans ; Magnetic Resonance Imaging/methods ; Melanins ; Multiple System Atrophy/diagnostic imaging ; Multiple System Atrophy/pathology ; Parkinson Disease/diagnostic imaging ; Parkinson Disease/pathology ; Parkinsonian Disorders/diagnostic imaging ; Parkinsonian Disorders/pathology ; Substantia Nigra/diagnostic imaging ; Substantia Nigra/pathology ; Supranuclear Palsy, Progressive/diagnostic imaging ; Supranuclear Palsy, Progressive/pathology
    Chemical Substances Melanins ; neuromelanin
    Language English
    Publishing date 2022-03-29
    Publishing country United States
    Document type Journal Article ; Research Support, Non-U.S. Gov't
    ZDB-ID 607633-6
    ISSN 1531-8257 ; 0885-3185
    ISSN (online) 1531-8257
    ISSN 0885-3185
    DOI 10.1002/mds.28988
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  9. Article ; Online: Suivi des donneurs apparentés : recommandations de la Société francophone de greffe de moelle et de thérapie cellulaire (SFGM-TC).

    Polomeni, Alice / Culat-Farhat, Marjorie / Desbrosses, Yohan / Andrianne, Christelle / Ainaoui, Malika / Baillie, Evelyne / Bancillon, Nelly / de Bentzmann, Natacha / Bouya, Salaheddine / Duteil, Elodie / Fraysse, Christine / Issarni, Dominique / Ruscassie, Agnès / Sauze, Séverine / Thibert, Jean-Baptiste / Yakoub-Agha, Ibrahim / Faucher, Catherine

    Bulletin du cancer

    2019  Volume 107, Issue 1S, Page(s) S94–S103

    Abstract: Since 2010 there has been an exponential increase of the number of transplants performed from related donors. The development of haploidentical transplants increases the resort to related-donation, which presents two main advantages: a less important ... ...

    Title translation Related donors follow-up: Guidelines from the Francophone Society of Bone Marrow Transplantation and Cellular Therapy (SFGM-TC).
    Abstract Since 2010 there has been an exponential increase of the number of transplants performed from related donors. The development of haploidentical transplants increases the resort to related-donation, which presents two main advantages: a less important financial cost and a faster availability of the graft. Standards for mandatory accreditation exist, but the adherence to these recommendations is not optimal: currently, different practices regarding the organizational modalities of care, recruitment criteria, qualification and follow-up of related donors have been observed among French transplant centers. The Francophone Society of Marrow Transplant and Cellular Therapy (SFGM-TC) has developed guidelines for the consent and the non-eligibility criteria for hematopoietic stem cell donors. A multidisciplinary group has devised a booklet as a medium to inform donors about hematopoietic cell donation and transplantation in a clear and accessible language. This paper provides recommendations on post-donation follow-up, taking into account both medical standards and organizational constraints of French centers. Some tools are proposed.
    MeSH term(s) Allografts ; Family ; Haplotypes/genetics ; Hematopoietic Stem Cell Transplantation ; Histocompatibility ; Humans ; Informed Consent ; Interdisciplinary Communication ; Living Donors ; Tissue Donors ; Tissue and Organ Procurement/methods ; Tissue and Organ Procurement/standards
    Language French
    Publishing date 2019-04-18
    Publishing country France
    Document type Consensus Development Conference ; Journal Article ; Practice Guideline
    ZDB-ID 213270-9
    ISSN 1769-6917 ; 0007-4551
    ISSN (online) 1769-6917
    ISSN 0007-4551
    DOI 10.1016/j.bulcan.2019.02.006
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