Publications by authors named "Hatron Pierre Yves"

Article Synopsis
  • A study was conducted to compare the diagnostic effectiveness of Fluorodesoxyglucose Positron Emission Tomography (PET/CT) with Chest-Abdomen-Pelvis CT (CAPCT) in patients suffering from fever of unknown origin (FUO), inflammation of unknown origin (IUO), and episodic fever of unknown origin (EFUO).
  • The trial included 103 patients from 7 French University Hospital centers between 2008 and 2013, assessing diagnostic orientation (DO), diagnostic contribution (DC), and time for diagnosis.
  • Results indicated that PET/CT significantly outperformed CAPCT in DO (28.2% vs. 7.8%), DC (19.4% vs.
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  • - The study aimed to analyze how common and important skin disorders are in patients with primary Sjögren syndrome (pSS) using data from two different French cohorts and a clinical trial on treatment effectiveness.
  • - Results showed that skin issues, particularly those recorded in the disease activity index (ESSDAI), were uncommon but linked to other disease activities like neurological and muscular problems. In patients who had skin assessments, there was a higher rate of dermatological issues compared to those who didn't.
  • - The findings emphasized that while specific skin manifestations are rare, skin dryness is quite prevalent and correlates with increased pain and dryness scores in patients, highlighting the need for dermatological evaluations.
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  • A 75-year-old patient with cervical lymphadenopathy exhibited symptoms of acquired hemophilia A (AHA), including elevated aPTT and low factor VIII (FVIII) levels, with high anti-FVIII antibodies detected.
  • Histological analysis revealed benign follicular hyperplasia and elevated serum IgG4 levels, indicating the presence of IgG4-related disease (IgG4-RD).
  • The patient was treated successfully with prednisone and rituximab, leading to an exploration of the connection between AHA and IgG4-RD, eventually determining that specific anti-FVIII autoantibodies were predominantly IgG4 in subtype among cases with overlapping conditions.
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Objectives: No immunomodulatory drug has been approved for primary Sjögren's syndrome, a systemic autoimmune disease affecting 0.1% of the population. To demonstrate the efficacy of targeting interleukin 6 receptor in patients with Sjögren's syndrome-related systemic complications.

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Objectives: Hydroxychloroquine (HCQ) is an anchor drug in the treatment of systemic lupus erythematosus (SLE). Adherence to HCQ is key for efficacy. Inaccurate evaluation of adherence could lead to non-justified switch to more expensive or less tolerated drugs.

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Objective: The aims of our study were to describe the evolution of interstitial lung disease (ILD) extent on HRCT scan in systemic sclerosis (SSc), to identify baseline prognostic factors associated with ILD evolution and to assess whether the evolution of pulmonary function tests (PFTs) correlated with this evolution.

Methods: 58 SSc with ILD (SSc-ILD) patients were included. All HRCT scans and PFTs available were collected.

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The aims of this study were to determine whether tubulointerstitial damage in the form of interstitial fibrosis/tubular atrophy and total interstitial inflammation predicted progression to end stage renal disease (ESRD) and/or renal relapse (RR) in patients with antineutrophil cytoplasmic antibody-associated vasculitis (AAV). One hundred thirteen patients with AAV from six French centers with an index biopsy performed between 2003 and 2013 were included. Histological assessments using the AAV glomerular classification and the kidney allograft Banff classification were performed on pathological review.

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Background: The absence of asthma may rule out a diagnosis of eosinophilic granulomatosis with polyangiitis in patients with hypereosinophilic syndrome (HES) and features of vasculitis.

Objective: To describe eosinophilic vasculitis (EoV) as a possible manifestation of HES in asthma-free patients.

Methods: We screened our hospital database and the literature for patients with HES who met the following 4 criteria: (1) histopathological or clinical features of EoV (biopsy-proven vasculitis with predominant eosinophilic infiltration of the vessel wall and/or features of vasculitis with tissue and/or blood hypereosinophilia [absolute eosinophil count >1.

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Objectives: Systemic lupus erythematosus (SLE) is a chronic autoimmune multi-organ disease with an unpredictable course. SLE causes functional disability, changes in body appearance, and psychological distress. When faced with SLE, patients have to implement coping strategies.

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TAFRO syndrome is a clinical subtype of idiopathic multicentric Castleman disease (iMCD) that is characterized by thrombocytopenia, anasarca, fever and/or elevated serum C-reactive protein, renal dysfunction, and organomegaly. A 28-year-old woman with fever, weight gain of 13 kgs, lower extremity edema, hepatosplenomegaly, and multicentric peripheral lymphadenopathy was referred to our center. Laboratory investigations revealed anemia, thrombocytopenia, creatinine at 1.

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Background: Pauci-immune glomerulonephritis (PIGN) is a major prognostic factor in antineutrophil cytoplasmic antibodies-associated vasculitis (AAV). Renal remission is usually defined as improvement or stabilization of serum creatinine and proteinuria levels but the significance of hematuria is unclear. We evaluated the prognostic value of microscopic hematuria in patients in remission from a first flare of PIGN.

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Background Data regarding long-term outcome of patients with thromboangiitis obliterans are lacking and most series come from India and Japan. In this study, we assess long-term outcome and prognostic factors in a large cohort of thromboangiitis obliterans. Methods and Results Retrospective multicenter study of characteristics and outcomes of 224 thromboangiitis obliterans patients fulfilling Papa's criteria were analyzed.

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Objectives: Onset of primary SS is usually between 40 and 60 years of age, with severe systemic complications in 15% of cases. We sought to determine whether early-onset disease is related to a specific phenotype and if it is predictive of a poor outcome.

Methods: Biological and clinical data from 393 patients recruited in the ASSESS cohort, a French multicentre prospective cohort, were compared according to age at diagnosis.

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Objective: To evaluate the association of ulnar artery occlusion (UAO) assessed using Doppler ultrasound (DUS) with the severity markers of systemic sclerosis (SSc).

Methods: Two hundred four unselected patients fulfilling the American College of Rheumatology/European League Against Rheumatism 2013 classification criteria for SSc were included in this cross-sectional multicenter study. All patients underwent bilateral hand DUS to evaluate the presence of UAO and clinical/paraclinical visceral evaluation according to current guidelines.

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Antiphospholipid antibodies (aPL) can be present in the sera of systemic sclerosis (SSc) patients. This study aimed to determine the prevalence of aPL in a cross-sectional study of SSc patients, to assess their clinical associations, to perform a systematic review of published reports and a meta-analysis to estimate the worldwide prevalence of aPL in SSc. Two-hundred and forty-nine SSc patients were consecutively tested once for lupus anticoagulant (LA), anticardiolipin (aCL), and anti-β2glycoprotein I (anti-β2GpI) antibodies.

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Background and Purpose- International classification criteria for antiphospholipid syndrome (APS) include IgM (immunoglobulin M), aCL (anticardiolipin), and aB2GPI (anti-β2-glycoprotein-I) antibodies, but their relevance is still debated. We aimed to assess whether patients with isolated IgM aCL and/or aB2GPI at diagnosis have specific characteristics and outcomes. Methods- We retrospectively included APS patients with isolated IgM antiphospholipid antibodies (isolated-IgM-APS) and compared them to APS patients with IgG and IgM, or IgG alone and/or lupus anticoagulant (nonisolated-IgM-APS).

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Patients with HHV-8-negative/idiopathic multicentric Castleman disease (iMCD) experience systemic inflammatory symptoms and polyclonal lymphoproliferation due to an unknown etiology. Schnitzler's syndrome (SS) is characterized by recurrent urticarial rash, monoclonal IgM gammopathy, and other clinical signs of inflammation. To our knowledge, we report the first case of iMCD associated with SS and the fourth case of anakinra inducing a complete response for an iMCD patient.

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Importance: In systemic sclerosis (SSc), to date, no study has precisely described the total number and fine distribution of telangiectases (TAs), their clinical association with the disease, and the biological mechanisms causing their development.

Objectives: To describe the whole-body distribution of TAs and assess the association between the whole-body TA number and the characteristics of patients with SSc.

Design, Setting, And Participants: A single-center, cross-sectional study was conducted between July 11, 2016, and March 15, 2017, at the National Referral Centre for Rare Systemic and Autoimmune Diseases in France.

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Objectives: Retroperitoneal fibrosis (RPF) is a rare disease, with unknown aetiology (idiopathic RPF: iRPF) in two-thirds of cases. A subset of iRPF may be a manifestation of IgG4-related disease (IgG4-RD). Thus, recognition of IgG4-RD-RPF is crucial to optimise patient's care with iRPF.

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Beyond the production of autoantibodies, B-cells are thought to play a role in systemic sclerosis (SSc) by secreting proinflammatory/profibrotic cytokines. B-cells are a heterogeneous population with different subsets distinguished by their phenotypes and cytokine production. Data about B-cell subsets, cytokine production and intracellular pathways leading to this production are scarce in SSc.

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