Maladies orphelines

Description
Veille informationnelle portant sur les maladies orphelines

Sujets couverts
Maladies orphelines du tissu conjonctif
Autres maladies orphelines
Publications du CRCHUM

Sources
PubMed

Fréquence
Mensuelle

Bibliothécaire responsable
Florian Alatorre
florian.alatorre.chum@ssss.gouv.qc.ca


Catégorie:

Description

Tissu conjonctif

  • Excessive Hypocapnic Cerebral Vasoconstriction in Hypermobile Ehlers-Danlos Syndrome Assessed With Real-Time Magnetic Resonance Imaging During Lower-Body Negative Pressure
    on 12 août 2026

    J Am Heart Assoc. 2026 Aug 7:e050302. doi: 10.1161/JAHA.126.050302. Online ahead of print.ABSTRACTBACKGROUND: Orthostatic intolerance is common in hypermobile Ehlers-Danlos syndrome (hEDS) with one third of patients fulfilling postural orthostatic tachycardia syndrome criteria. Our aim was to assess cerebral blood flow in patients with hEDS and postural orthostatic tachycardia syndrome during orthostasis, which may be responsible for orthostatic intolerance.METHODS: In 18 individuals with hEDS and postural orthostatic tachycardia syndrome and 20 healthy controls, we conducted real-time phase contrast magnetic resonance imaging of the middle cerebral artery with and without an orthostatic challenge through 30 mm Hg lower-body negative pressure.RESULTS: During lower-body negative pressure, heart rate increased more in hEDS than in controls (15.0±8.3 bpm versus 7.8±7.7 bpm, P=0.009); blood pressure remained unchanged; middle cerebral artery flow per heartbeat decreased more in hEDS (-28%±16% versus -15%±13% in controls, P=0.013) with decreased mean volumetric flow in hEDS (-12%±17%, P<0.001 versus -6%±8% in controls, P=0.102); average middle cerebral artery peak blood flow velocity decreased in both groups (hEDS: 44.6±8.1 cm/s to 37.6±8.4 cm/s, P<0.001; controls: 40.3±10.9 cm/s to 36.9±11.1 cm/s, P=0.018); respiration rate increased in hEDS (14.3±5.1/min to 17.4±5.3/min, P=0.002) leading to a decrease in end-tidal CO2 (39.2±4.2 mm Hg to 35.6±6.4 mm Hg, P=0.025), and cerebrovascular resistance increased more in hEDS (50.8%±48.4%, P<0.001) versus (20.3%±20.6%, P=0.005) in controls.CONCLUSIONS: Individuals with hEDS and postural orthostatic tachycardia syndrome maintain cerebral perfusion primarily through tachycardic compensation during orthostatic stress despite hypocapnic vasoconstriction.REGISTRATION: URL: https://drks.de/search/en; Unique Identifier: DRKS00028279.PMID:42568068 | DOI:10.1161/JAHA.126.050302

  • Assessment of Hip Joint Articular Cartilage Composition in People with Marfan Syndrome Utilizing T1rho and T2 Mapping
    on 12 août 2026

    HSS J. 2026 Jul 15:15563316261466677. doi: 10.1177/15563316261466677. Online ahead of print.ABSTRACTBACKGROUND: People with Marfan syndrome (MFS) exhibit a high incidence of hip joint pain and earlier onset of osteoarthritis than those without MFS. Imaging-related biomarkers of hip joint health that provide an earlier indication of hip cartilage degeneration in the MFS population have yet to be assessed.PURPOSE: We sought to determine whether people with MFS exhibit biochemical alterations of proteoglycan content and collagen structure within the hip joint cartilage compared to individuals without MFS as documented by quantitative magnetic resonance imaging (MRI) including both T1ρ and T2 mapping.METHODS: Fourteen individuals with MFS and 14 healthy, asymptomatic controls matched for age, sex, and body mass index underwent radiographic imaging and unilateral hip quantitative MRI including both T1ρ and T2 mapping to evaluate cartilage proteoglycan content and collagen structure.RESULTS: People with MFS showed significantly higher T1ρ values in the anterior superior acetabular cartilage compared to the asymptomatic controls. No significant between-group differences were noted in the femoral T1ρ values or in any of the T2-related values.CONCLUSION: This cross-sectional, observational study found elevated anterior superior acetabular cartilage T1ρ values, indicating a lower proteoglycan content within this specific sub-region, in individuals with MFS. The anterior superior acetabular cartilage may be prone to degeneration and may contribute to the high rates of early onset osteoarthritis observed in the MFS population. Our results suggest T1ρ cartilage imaging may be a potential biomarker of early cartilage degradation in the MFS population. Clinically, T1ρ imaging may allow for better informed decisions regarding interventional timing to prevent the onset and progression of hip osteoarthritis in individuals with MFS.LEVEL OF EVIDENCE: Level III, prognostic study.PMID:42466251 | PMC:PMC13372799 | DOI:10.1177/15563316261466677

  • Thoracic Aortic Dissection in a Patient With Classical Homocystinuria: Implications for Aortic Surveillance
    on 12 août 2026

    JIMD Rep. 2026 Jul 19;67(4):e70107. doi: 10.1002/jmd2.70107. eCollection 2026 Jul.ABSTRACTClassical homocystinuria (OMIM #236300), a rare inherited metabolic disorder caused by cystathionine beta-synthase (CBS) deficiency, is characterized by markedly elevated homocysteine levels and associated multisystem complications. While the role of homocystinuria in venous thromboembolism is well recognized, there is limited evidence of impact on aortic pathology. We report the first known case of thoracic aortic dissection in a patient with poorly controlled classical homocystinuria. The patient, a 29-year-old female, was diagnosed in childhood after presenting with Marfanoid features and neurodevelopmental issues, and had persistently elevated homocysteine levels. She had morbid obesity (BMI: 52.7 kg/m2) with no known hypertension or aortic disease. She died suddenly from a ruptured thoracic aortic dissection. Post-mortem whole exome sequencing confirmed homozygosity for a pathogenic CBS mutation NM_000071.2: c.1058C>T; p.(Thr353Met) without any additional variants implicated in monogenic aortopathy or aortic dissection. Notably, her younger brother also has classical homocystinuria but no evidence of aortic dilation to date. This case adds to emerging evidence that elevated homocysteine may contribute to structural vascular damage. Our findings underscore the need to consider aortic surveillance in patients with classical homocystinuria, particularly those with inadequate metabolic control or additional risk factors such as obesity, and highlight the importance of early, sustained treatment to mitigate potential vascular risk.PMID:42519297 | PMC:PMC13381092 | DOI:10.1002/jmd2.70107

  • A case report of giant left ventricular outflow tract pseudoaneurysm in a pregnant woman with Loeys-Dietz syndrome: a management conundrum
    on 12 août 2026

    Eur Heart J Case Rep. 2026 Jul 16;10(7):ytag490. doi: 10.1093/ehjcr/ytag490. eCollection 2026 Jul.ABSTRACTBACKGROUND: Loeys-Dietz syndrome (LDS) is a rare connective tissue disorder associated with aortic aneurysms and increased surgical complications. Recognizing left ventricular outflow tract (LVOT) pseudoaneurysm after aortic root surgery is challenging but is essential given rupture risk.CASE SUMMARY: A 20-year-old woman with genetically confirmed LDS (TGFBR2-related) and history of elective valve-sparing aortic root replacement for a 4.3 cm aortic aneurysm presented with progressive substernal chest pain and dyspnoea. Transthoracic echocardiography revealed a giant LVOT pseudoaneurysm and mildly reduced left ventricular systolic function. Chest CT angiography confirmed the diagnosis and defined its extent. She underwent urgent surgical repair using a bovine pericardial patch with intraoperative finding of suture-line dehiscence at the aorto-mitral intervalvular fibrosa. Four weeks after redo cardiac surgery, she was found to be 7 weeks pregnant and, after counselling regarding her extremely high-risk status, opted to continue the pregnancy.DISCUSSION: This case illustrates the complexities of surgical intervention in LDS, where tissue fragility and comorbidities increase perioperative risk and complicate management. Close postoperative TTE may enable early detection of LVOT pseudoaneurysm after aortic surgery. A low threshold for chest CTA is key for distinguishing true from pseudoaneurysm. Shorter surveillance intervals may be warranted in high-risk patients with risk factors such as tissue fragility, complicated postoperative course, or chest wall deformity.PMID:42483704 | PMC:PMC13387059 | DOI:10.1093/ehjcr/ytag490

  • Coexistence of PYCR1-related cutis laxa and bilateral grade V vesicoureteral reflux with reflux nephropathy: A case report
    on 12 août 2026

    SAGE Open Med Case Rep. 2026 Jul 28;14:2050313X261472704. doi: 10.1177/2050313X261472704. eCollection 2026.ABSTRACTPYCR1-related cutis laxa (autosomal recessive cutis laxa type IIB) is a rare inherited connective tissue disorder characterized by loose, inelastic skin, and variable multisystem involvement. While systemic and neurological manifestations have been well described in the literature, data on renal and urinary tract findings remain sparse. We report a 6-year-old girl with genetically confirmed PYCR1-related cutis laxa who presented with recurrent febrile urinary tract infections. Workup revealed bilateral grade V vesicoureteral reflux alongside a small, atrophic left kidney with cortical defects on dimercaptosuccinic acid scintigraphy, in keeping with established reflux nephropathy. Differential renal function was markedly asymmetric, with the left kidney contributing 24% and the right kidney 76% of total function. Despite the degree of unilateral parenchymal loss, estimated glomerular filtration rate and blood pressure remained within age-appropriate limits, though mild proteinuria was noted on further evaluation. Given the burden of recurrent febrile infections in the setting of high-grade bilateral reflux, she was initially managed with prophylactic nitrofurantoin. Following urology consultation surgical correction was therefore pursued, and she underwent bilateral antireflux surgery. She remained free of breakthrough urinary tract infections throughout early postoperative follow-up. The concurrence of severe vesicoureteral reflux, reflux nephropathy, and PYCR1-related cutis laxa has rarely been documented. Whether this association reflects a pathophysiological link or represents coincidental findings in a single patient is not yet clear; nonetheless, this case highlights the importance of considering underlying urological pathology in children with complex connective tissue disorders who present with recurrent urinary tract infections.PMID:42534277 | PMC:PMC13420061 | DOI:10.1177/2050313X261472704

  • Lymphatic therapies open the valve in Marfan syndrome
    on 12 août 2026

    J Clin Invest. 2026 Aug 3;136(15):e209169. doi: 10.1172/JCI209169. eCollection 2026 Aug 3.ABSTRACTMyxomatous degeneration of the mitral valve (MDMV) is a common cardiovascular manifestation of Marfan syndrome (MFS), yet the role of lymphatic vessels in the disease progression remains unknown. In this Commentary, we discuss the study by Tan, Kume, and colleagues, which identifies defective lymphangiogenesis as a previously unrecognized driver of MDMV. Their work demonstrates that impaired lymphatic development and drainage promote valve inflammation through reduced ZFP36-mediated antiinflammatory signaling, whereas restoration of lymphatic function or pharmacological activation of ZFP36 with the FDA-approved drug FTY720 ameliorates disease progression. These findings establish lymphatic vessels as critical regulators of mitral valve homeostasis and support exploration of lymphatic-targeted therapeutic opportunities for MFS-associated valvular disease.PMID:42544580 | DOI:10.1172/JCI209169

  • Enrichment of an Ehlers-Danlos-like phenotype in women with the FMR1 premutation: a pilot study
    on 12 août 2026

    J Med Genet. 2026 Aug 6:jmg-2025-111346. doi: 10.1136/jmg-2025-111346. Online ahead of print.ABSTRACTBACKGROUND: Previous research identified an Ehlers-Danlos (EDS)-like phenotype in fragile X premutation (FXPC) women. This preliminary research examines associations between the presence of this connective tissue phenotype, FMR1 genotype and immune-mediated, autonomic-mediated and endocrine-mediated symptoms.METHODS: Women with FXPC (n=11; mean age=44 years, SD=9.9) were recruited from Greenwood Genetic Centre and southern Louisiana. Most participants were mothers or close female relatives of individuals with fragile X syndrome. Participants were assessed for hypermobile Ehlers-Danlos syndrome (hEDS) according to the 2017 criteria. They also underwent an active stand test and completed a health-related survey.RESULTS: Observed co-occurrence of this EDS-like phenotype in women with the premutation (n=5) was substantially higher than expected under statistical independence (one-sided OR 15.83, 95% CI 4.67 to 53.65, p=1.119 × 10-4]. Preliminary data also indicate that FXPC women with <90 FMR1 CGG repeats may be at higher risk of developing this phenotype compared with those with >90 repeats (p=0.016, Cohen's d=-1.928). FXPC women with the EDS-like phenotype also reported more immune-mediated symptoms (Benjamini-Hochberg (BH) adjusted p=0.032), a trend towards greater autonomic symptom burden (BH adjusted p=0.054), and had significantly higher supine/standing HR and BP during an active stand test compared with FXPC women without the connective tissue phenotype (p=0.003-0.034).CONCLUSIONS: Despite small sample numbers, the observed co-occurrence exceeded expectations under statistical independence and suggests a potential association warranting validation in larger cohorts.PMID:42562626 | DOI:10.1136/jmg-2025-111346

  • Fragile X Syndrome in Adulthood: A Study of Electronic Health Records
    on 12 août 2026

    Am J Intellect Dev Disabil. 2026;131(1):53-68. doi: 10.1080/19447515.2025.2583715. Epub 2025 Dec 16.ABSTRACTWe analyzed the electronic health records of 323 Black and White non-Hispanic adults with Fragile X syndrome who were served by CAPriCORN, a network of healthcare systems in an urban area in the Midwest. Black patients with Fragile X syndrome were found to have a substantially elevated frequency of mental, neurological, and physical health conditions compared to Black controls. Further, Black and White patients with Fragile X syndrome had a dominant pattern of similarity across the hundreds of conditions that appeared in their records. This study broadens understanding of the health conditions associated with Fragile X syndrome during adulthood by extending the patient population to include Blacks as well as Whites.PMID:42580314 | DOI:10.1080/19447515.2025.2583715

  • From Stigma to Suffering: Stigma, Health-Related Quality of Life, and Healthcare Access in Sickle Cell Disease-A Global Systematic Review
    on 12 août 2026

    Pediatr Blood Cancer. 2026 Jul 29:e70470. doi: 10.1002/1545-5017.70470. Online ahead of print.ABSTRACTSickle cell disease (SCD) is a chronic inherited disorder characterized by recurrent pain, organ damage, and reduced life expectancy. Beyond its clinical burden, individuals with SCD experience significant stigma that adversely affects psychological well-being, health-related quality of life (HRQoL), and healthcare access. This systematic review synthesizes global evidence on the impact of stigma on HRQoL and healthcare access among individuals with SCD. Following Preferred Reporting Items for Systematic Reviews and Meta-Analyses (PRISMA) 2020 guidelines, peer-reviewed studies published between January 2010 and December 2025 were retrieved from PubMed, Scopus, Embase, and PubMed Central. A total of 53 studies (27 qualitative, 18 quantitative, 8 mixed methods) met the inclusion criteria. Four key stigma domains were identified: clinical mistrust and dismissal, internalized stigma and psychological distress, intersectional marginalization, and structural invisibility within healthcare systems. Across diverse settings, stigma was consistently associated with reduced HRQoL, delayed healthcare seeking, and weakened patient-provider relationships. Stigma operates across multiple levels, reinforcing health inequities. Addressing stigma through patient-centered care, community engagement, and policy reforms is essential to improve outcomes and ensure equitable healthcare access for individuals with SCD. PROSPERO Registration: CRD420251232621.PMID:42527870 | DOI:10.1002/1545-5017.70470

  • Coexistence of Neurofibromatosis Type 1 and Marfan Syndrome in a 13-Year-Old Boy: A Case Report
    on 12 août 2026

    Am J Case Rep. 2026 Aug 4;27:e950868. doi: 10.12659/AJCR.950868.ABSTRACTBACKGROUND Neurofibromatosis type 1 (NF1) and Marfan syndrome (MFS) are genetically determined systemic disorders. Their simultaneous occurrence is exceptionally rare, with only a few cases reported in the literature. CASE REPORT A 13-year-old boy was admitted to a cardiology clinic due to mitral and tricuspid valve prolapse. He was tall, with severe scoliosis and distinctive dysmorphic features typical of MFS. More than 20 cafe-au-lait spots, characteristic of NF1, were present on his skin. The family history included NF1 in his twin brother, mother, maternal uncle, and maternal grandmother. The maternal uncle also exhibited phenotypic features of MFS and died at a young age from a suspected ruptured intracranial aneurysm. Genetic testing in our patient revealed an NF1 mutation, as well as a 16p13.11 microduplication that could explain his developmental delay and speech difficulties. The diagnosis of MFS was based on characteristic dysmorphic features and the presence of aortic root dilation, despite negative findings concerning the fibrillin-1 (FBN1) mutation typically associated with MFS. CONCLUSIONS A thorough assessment of physical features is essential to detect atypical phenotypes and recognize potential coexistence of multiple genetic syndromes. This case highlights the clinical importance of systematic cardiac evaluation, given that cardiac abnormalities typical of MFS may be critical for its recognition. Reporting such an unusual coexistence of NF1 and MFS underscores the need for multidisciplinary care to improve long-term outcomes in patients with overlapping genetic disorders.PMID:42548028 | DOI:10.12659/AJCR.950868

  • Occurrence of Emphysema in Individuals With Williams-Beuren Syndrome: A Narrative Review
    on 12 août 2026

    CHEST Pulm. 2024 May 14;3(1):100063. doi: 10.1016/j.chpulm.2024.100063. eCollection 2025 Mar.ABSTRACTBACKGROUND: Williams-Beuren syndrome (WBS) is a multisystem genetic condition characterized by a submicroscopic deletion on the seventh chromosome (7q11.23), which usually includes the elastin gene.RESEARCH QUESTION: Although the elastin deficiency in WBS can predispose individuals to emphysema, the prevalence of emphysema in WBS is unknown. This narrative review aims to address this gap by estimating the frequency of emphysema (or suggestive features thereof) in patients with WBS, with a special focus on concomitant alpha-1 antitrypsin deficiency.STUDY DESIGN AND METHODS: Literature was reviewed according to Preferred Reporting Items for Systematic Reviews and Meta-Analyses guidelines.RESULTS: Of 419 studies identified by the search strategy, 19 eligible studies reported 393 adult patients with WBS. The criteria by which emphysema was assessed varied greatly among the relatively few reports addressing this issue. Chest CT evidence of emphysema was reported in three of 26 patients (11.5%). Physiologic evidence of airflow obstruction, although not definitive for emphysema (ie, with asthma not excluded), was present in as many as 38.6% of patients. Considering studies that reported multiorgan clinical manifestations of WBS, irrespective of whether chest CT imaging and/or pulmonary function testing was reported, the frequency of spirometric and imaging signs suggestive of emphysema was 4.3%. Emphysema was not reported in any of the 11 patients with concomitant PI∗MZ heterozygous alpha-1 antitrypsin deficiency.INTERPRETATION: In the context that only few adults with WBS have been fully characterized regarding the occurrence of emphysema, confidently estimating the prevalence of emphysema is difficult. This review shows that the frequency of imaging and pulmonary function test abnormalities suggestive of emphysema seems relatively low in the context that the elastin deficiency of WBS clearly can predispose to emphysema, and that other manifestations of elastin deficiency are present early in life. Acknowledging the challenges of studying uncommon diseases or syndromes, further systematic study of adults with WBS is needed.PMID:42548480 | PMC:PMC13418694 | DOI:10.1016/j.chpulm.2024.100063

  • The Impact of Fragile X Syndrome on Caregivers: A Systematic Review
    on 11 août 2026

    J Intellect Disabil Res. 2026 Aug 6. doi: 10.1111/jir.70159. Online ahead of print.ABSTRACTBACKGROUND: The effects of fragile X syndrome (FXS) reach beyond the individual with the condition, profoundly influencing the well-being of caregivers and family members. The aim of this review is to synthesise current evidence on the effects of FXS on caregivers, investigate contributors to their burden and identify gaps for future research.METHODS: This review was conducted in accordance with PRISMA guidelines. A thorough search of electronic databases was performed to identify relevant original research. Two reviewers independently screened the studies for eligibility, and the quality of included studies was evaluated using the CASP tool. Key data were extracted, and a narrative synthesis was used to summarise and interpret the findings.RESULTS: Twenty studies involving 3474 caregivers of children, adolescents and adults with FXS were included in this review. Thirteen studies were conducted in the United States, with additional research in the United States and Canada, Italy, France, the Netherlands and Australia. Female caregivers were the primary participants in most studies. Six primary factors were identified as shaping caregivers' experiences: care-recipients' age and gender, caregivers' characteristics, disease-related factors, compromised caregiver psychological well-being, disrupted family dynamics and limited support systems or unmet needs. Challenging behaviours in individuals with FXS consistently emerge as the factor exerting the greatest influence on caregivers' psychological and practical burden.CONCLUSIONS: Caring for individuals with FXS places substantial burdens on caregivers, influenced by patient behaviour, family dynamics and limited support. Targeted, multidisciplinary interventions are needed to address these gaps and improve both caregiver well-being and care outcomes.PMID:42563129 | DOI:10.1111/jir.70159

 

Autres

  • Advance Care Planning in Sickle Cell Disease: A Scoping Review
    on 12 août 2026

    J Palliat Med. 2026 Jul 20:10966218261470489. doi: 10.1177/10966218261470489. Online ahead of print.ABSTRACTSickle cell disease (SCD) is an inherited hemoglobinopathy characterized by abnormal red blood cell sickling, leading to pain, organ dysfunction, and early mortality. Its severe, unpredictable course and the emergence of complex decisions surrounding transformative therapies have prompted recommendations to integrate palliative care (PC) to support patients and families. Advance care planning (ACP) is a component of PC that seeks to align medical care with patient values and preferences. Individuals with SCD may benefit from ACP throughout the lifespan, yet best practices remain poorly defined. This scoping review, conducted using Joanna Briggs Institute methodology and reported per PRISMA-ScR (PRISMA extension for scoping reviews) guidelines, explores what is known about ACP in SCD and identifies future research priorities. Nine articles published between 2010 and 2025 met inclusion criteria. The limited available evidence suggests that patients are open to ACP discussions with trusted clinicians, but few patients had participated in formal or informal ACP. Personal and environmental factors may influence ACP engagement, including patient-clinician trust, patient and clinician understanding of ACP in SCD, timing of ACP conversations, and previous experiences with critical illness or end-of-life care. Proposed steps for advancing ACP in SCD include education, early PC integration, and strengthened patient-clinician communication and relationships. This scoping review is the first to summarize proposed barriers, facilitators, and strategies to improve ACP for individuals living with SCD.PMID:42473827 | DOI:10.1177/10966218261470489

  • Yoga as an Adjunctive Intervention for Duchenne Muscular Dystrophy: A Scoping Review
    on 12 août 2026

    Int J Yoga. 2026 May-Aug;19(2):120-127. doi: 10.4103/ijoy.ijoy_64_25. Epub 2026 Jul 24.ABSTRACTThis scoping review aimed to explore and summarize the published evidence on yoga as an adjunctive intervention to standard rehabilitative care for individuals with Duchenne muscular dystrophy (DMD). A comprehensive literature search was conducted across five databases - PubMed/MEDLINE, SPORTDiscus, ProQuest Health and Medicine Collection, Web of Science Core Collection, and CINAHL - using the terms "Duchenne muscular dystrophy" (or DMD) and "yoga." Studies were included if they (1) were published between January 2000 and December 2024; (2) involved participants with DMD; (3) examined yoga as an intervention; (4) were peer-reviewed; and (5) were published in English. We used a standardized data extraction form to capture study characteristics, including authorship, publication year, sample size, participant demographics, intervention details, outcome measures, and main results. We assessed study quality with the Modified Downs and Black Checklist (MDBC). Six studies met the inclusion criteria. Five were rated as having fair quality (MDBC score: 15-17/28), and one was rated as having poor quality (MDBC score: 3/28). Yoga interventions incorporated asanas (postures), dhyana (meditation), and pranayama (breathing practices). Outcome measures varied widely, encompassing mobility, self-care, comfort, heart rate variability, respiratory function, quality of life, and functional performance. Modest improvements were noted in pulmonary function and self-reported well-being; however, evidence remains limited and inconsistent. Current literature provides preliminary support for yoga as a complementary therapy in DMD rehabilitation. More rigorous, large-scale trials are needed to establish their efficacy and clinical relevance.PMID:42553713 | PMC:PMC13436612 | DOI:10.4103/ijoy.ijoy_64_25

  • Clinical Utility and Measurement Properties of Balance Measures in Duchenne Muscular Dystrophy: A Scoping Review
    on 12 août 2026

    Pediatr Neurol. 2026 Jul 21;183:156-161. doi: 10.1016/j.pediatrneurol.2026.07.018. Online ahead of print.ABSTRACTBACKGROUND: Duchenne muscular dystrophy (DMD) is a progressive neuromuscular condition marked by worsening muscle weakness, balance impairments, gait abnormalities, and reduced functional independence. Assessing balance accurately is important for tracking disease progression, determining the effectiveness of rehabilitation interventions and detecting the risk of falls in individuals with DMD. However, the clinical utility and measurement properties of available balance assessment tools in this population remain unclear. This scoping reviews systematically map and synthesize the evidence regarding clinical utility and measurement properties of balance assessment tools used in individuals with DMD.METHODS: A scoping review was conducted following a comprehensive search of PubMed, Physiotherapy Evidence Database, and Scopus databases yielding 4908 records. Six studies investigating the clinical utility and measurement properties of balance assessment tools in individuals with DMD were included. Data on reliability, validity, responsiveness, feasibility, and clinical applicability were extracted and synthesized.RESULTS: The included studies demonstrated favorable reliability, construct validity, and clinical feasibility including Timed Up and Go Test, Functional Reach Test, Functional Evaluation Scale-Duchenne Muscular Dystrophy-Gait Domain, North Star Ambulatory Assessment, Four Square Step Test, Dynamic Video Assessment, and Duchenne Muscular Dystrophy-Gait Assessment Scale.CONCLUSIONS: Current balance assessment tools used in DMD demonstrate promising clinical utility and acceptable measurement properties. However, further longitudinal studies are needed to establish responsiveness, measurement error, and long-term psychometric performance to support their broader application in clinical practice and research.PMID:42571775 | DOI:10.1016/j.pediatrneurol.2026.07.018

  • Risk Factors for Pulmonary Involvement in Patients with ANCA-associated Vasculitis: A Systematic Review and Meta-analysis
    on 12 août 2026

    Clin Rev Allergy Immunol. 2026 Jul 31;69(1):62. doi: 10.1007/s12016-026-09186-y.ABSTRACTPulmonary involvement (PI) in ANCA-associated vasculitis (AAV), especially interstitial lung disease (ILD) and diffuse alveolar hemorrhage (DAH), predicts poor outcomes, but a synthesis distinguishing these phenotypes is lacking. We searched seven databases up to April 1, 2026, and included observational studies. Using univariate and multivariate meta-analyses, we calculated pooled odds ratios (OR) or mean differences (MD). Nineteen studies (2,944 patients) were included. For ILD, robust independent risk factors were age > 65 years (OR = 3.60) and male gender (OR = 2.57). MPO-ANCA positivity was more frequent in the ILD group (OR = 2.29). Potential associated factors included smoking, D-dimer, ANA, low C4, and CA199. MPA subtype, cough, and dyspnea were more frequent in the ILD group. Factors associated with lower ILD frequency included GPA subtype, PR3-ANCA positivity, c-ANCA positivity, ENT involvement, gastrointestinal involvement, and a higher BVAS score. For DAH, potential associated factors included proteinuria, high BVAS score, Cr, BUN, PCT, decreased Hb, and low C3. PR3-ANCA positivity and hemoptysis were more frequent in the DAH group. For overall PI, independent risk factors were age (continuous OR = 1.04, > 65 years OR = 4.20), male gender (OR = 3.08), and high BVAS (OR = 3.03). MPO-ANCA positivity (OR = 2.55) was more frequent in the overall PI group, which largely overlapped with those for ILD, suggesting that ILD is the main driver of overall PI. This first meta-analysis combining univariate and multivariate approaches with an evidence-grading framework for ILD demonstrates distinct clinical patterns for ILD versus DAH, offering a clinically actionable tool for risk stratification and personalized management of PI in AAV.PMID:42536106 | DOI:10.1007/s12016-026-09186-y

  • Investigating on mechanism of Yangyin Yifei Tongluo Pills in improving idiopathic pulmonary fibrosis based on bioinformatics and machine learning combined with UHPLC-Q Exactive Orbitrap-HRMS
    on 12 août 2026

    Zhongguo Zhong Yao Za Zhi. 2026 Jun;51(11):3067-3079. doi: 10.19540/j.cnki.cjcmm.20260309.901.ABSTRACTIdiopathic pulmonary fibrosis(IPF) is a fatal interstitial lung disease with limited clinical therapeutic options. Traditional Chinese medicine formulas, characterized by multi-component, multi-target, and holistic regulatory properties, have shown unique potential in the prevention and treatment of IPF. Yangyin Yifei Tongluo Pills(YF) is a TCM formula with demonstrated clinical efficacy. However, its modern pharmacological mechanism against IPF remains to be systematically elucidated. In this study, ultra-high-performance liquid chromatography coupled with quadrupole-Orbitrap high-resolution mass spectrometry(UHPLC-Q Exactive Orbitrap-HRMS) was employed to identify the chemical constituents of YF. A total of 76 potential bioactive compounds were characterized, including flavonoids, phenylpropanoids and other chemicals. By integrating network pharmacology and bioinformatics analyses, drug-related targets, IPF-associated targets, differentially expressed genes, and WGCNA-derived key module genes were intersected, yielding 15 potential targets. Based on a systematic evaluation using nine machine learning algorithms, arginase 1(ARG1) and matrix metalloproteinase 14(MMP14) were identified as key core targets. Gene Ontology and Kyoto Encyclopedia of Genes and Genomes(KEGG) pathway enrichment analyses indicated that these targets were mainly involved in inflammatory regulation, signal transduction, and extracellular matrix(ECM) remodeling, with significant enrichment in key signaling pathways such as the TNF signaling pathway. Immune microenvironment analysis revealed that the expression levels of ARG1 and MMP14 were closely associated with immune and stromal cell infiltration characteristics. Molecular docking demonstrated favorable binding affinities between ARG1/MMP14 and several core components, including miltirone, peimine, cryptotanshinone, and sec-O-glucosylhamaudol, while molecular dynamics simulations further confirmed the conformational stability of miltirone and sec-O-glucosylhamaudol, as core potential bioactive components, with the targets under dynamic conditions. Collectively, these findings suggest that YF may exert anti-IPF effects by targeting ARG1 and MMP14 through its core potential bioactive components, synergistically modulating key processes including the immune microenvironment, fibroblast activation, and extracellular matrix remodeling. […]

  • Functional vs Structural Renal Outcomes of SGLT2 Inhibitors in Autosomal Dominant Polycystic Kidney Disease: A Systematic Review of Preclinical and Clinical Evidence
    on 12 août 2026

    Ann Pharmacother. 2026 Aug 3:10600280261467689. doi: 10.1177/10600280261467689. Online ahead of print.ABSTRACTBACKGROUND: Sodium-glucose cotransporter-2 inhibitors (SGLT2is) provide significant renoprotection in chronic kidney disease, but their efficacy in autosomal dominant polycystic kidney disease (ADPKD) remains unclear.OBJECTIVE: To systematically assess preclinical and clinical data regarding the effectiveness, safety, and mechanisms of SGLT2i in ADPKD.DATA SOURCES: PubMed, Embase, and Scopus were searched from database inception to May 2026.ELIGIBILITY CRITERIA: Preclinical polycystic kidney models and clinical trials/observational studies of ADPKD evaluating any SGLT2i.METHODS: Two reviewers independently screened studies and extracted data following the Preferred Reporting Items for Systematic Reviews and Meta-Analyses (PRISMA) 2020 standards. Bias was evaluated using SYRCLE and relevant clinical tools.RESULTS: Eleven studies satisfied the inclusion criteria: 4 preclinical rodent models, 1 current randomized controlled trial, and 6 observational/case-based clinical investigations. Preclinical results consistently showed decreased cyst load, inflammation, and fibrosis while also enhancing renal hemodynamics. Emerging clinical evidence demonstrated advantages in managing blood pressure, decreasing proteinuria, and improving metabolic measures, with slight or inconsistent effects on overall kidney volume. Diverse clinical data prevented quantitative meta-analysis.RELEVANCE TO PATIENT CARE AND CLINICAL PRACTICE: This review addresses a significant gap by comparing the functional and structural renal outcomes of SGLT2i in ADPKD. It indicates that although SGLT2i provides multi-pathway functional nephroprotection (natriuretic, anti-inflammatory, antifibrotic), structural reduction of cyst growth needs additional clinical validation. These results provide reassurance to clinicians concerning short-term safety and advocate for the use of SGLT2i as effective supplements to control blood pressure, metabolic markers, and proteinuria in ADPKD, regardless of structural kidney alterations.CONCLUSION: Preclinical findings suggest that SGLT2i provides renal protection in ADPKD through metabolic, anti-inflammatory, and antifibrotic mechanisms. Nevertheless, well-structured randomized controlled trials are necessary to validate long-term clinical effectiveness and safety.PMID:42544557 | DOI:10.1177/10600280261467689

  • Clinical phenotypes and etiologic subtypes of thrombotic microangiopathy in systemic lupus erythematosus
    on 12 août 2026

    Nephrol Dial Transplant. 2026 Aug 3:gfag167. doi: 10.1093/ndt/gfag167. Online ahead of print.ABSTRACTBACKGROUND: Thrombotic microangiopathy (TMA) is a rare and severe complication of systemic lupus erythematosus (SLE). While classically defined by microangiopathic hemolytic anemia, thrombocytopenia, and organ damage, TMA may also present as a renal-limited process requiring histologic diagnosis. Data characterizing the clinical phenotypes, histologic patterns, etiologic subtypes, and outcomes of SLE-associated TMA remain limited.METHODS: We conducted a retrospective cohort study of adults with SLE-TMA diagnosed between 2004 and 2024 at a tertiary referral center. TMA was defined by either hematologic criteria and/or kidney biopsy findings. Patients were categorized as having renal-hematologic TMA (RH-TMA) or renal-limited TMA (RL-TMA). Etiologic adjudication was performed using predefined clinical criteria, incorporating validated probability scores and serologic evaluation. Clinical characteristics, histologic findings, treatment, and long-term outcomes were analyzed by survival analyses.RESULTS: A total of 124 patients were included. The median age was 29 years and 90% were female. Kidney biopsy was performed in 81% of cases. Nearly half of cases (48%) presented as RL-TMA without hematologic manifestations. Compared with RH-TMA, RL-TMA was associated with a higher prevalence of chronic vascular lesions (aOR 2.84, 95%CI 1.04-7.78) and an increased risk of renal relapse (aHR 2.67, 95%CI 1.17-6.09), while mortality was higher in RH-TMA. Histologic activity pattern (acute vs. chronic lesions) was not associated with renal outcomes. Etiologic adjudication suggested three predominant phenotypes: suspected complement-mediated TMA (59.7%), antiphospholipid syndrome nephropathy (34.7%), and TTP-like TMA (5.6%). Patients with TTP-like presentations had more severe hematologic involvement but favorable renal recovery among survivors.CONCLUSION: SLE-associated TMA frequently presents as a renal-limited syndrome requiring biopsy for diagnosis. A phenotype-based approach identifies clinically relevant subgroups with distinct renal trajectories, even in the absence of systematic biomarker confirmation. These findings support a pragmatic diagnostic framework for SLE-TMA and highlight the importance of kidney biopsy in patients without overt hematologic features.PMID:42545749 | DOI:10.1093/ndt/gfag167

  • Methodological Quality and Content Analysis of Clinical Practice Guidelines for Fever Management in Children With Sickle Cell Disease
    on 12 août 2026

    Pediatr Blood Cancer. 2026 Aug 4:e70529. doi: 10.1002/1545-5017.70529. Online ahead of print.ABSTRACTInfection/sepsis remains the number one cause of death among children under the age of 5 with sickle cell disease (SCD). Although clinical practice guidelines (CPGs) are an important tool for standardizing evidence-based care, the quantity and quality of existing CPGs for managing acute fever in children with SCD is unknown. We conducted a systematic review of CPGs published in the last 10 years addressing acute fever management in children with SCD. A PubMed search was conducted using standard search filters for CPGs, pediatrics, fever, and SCD. Additionally, a manual search of article citations, professional societies and consortia websites, and inquiries with experts was performed. CPGs were appraised by two reviewers using the Appraisal of Guidelines for Research and Evaluation II (AGREE II) instrument [http://www.agreetrust.org]. Results are summarized using descriptive statistics. The systematic and manual searches yielded 839 articles; 8 CPGs met inclusion criteria, but none were dedicated SCD acute fever CPGs. Geographic representation included France, India, Italy, Nigeria, sub-Saharan Africa, the United Kingdom, and the United States. The mean overall quality score was 46% (range 25%-67%). Rigorously developed CPGs focused on managing acute fever in children with SCD are lacking. This work highlights the need to generate a high-quality evidence-based CPG for managing acute fever in pediatric SCD.PMID:42549946 | DOI:10.1002/1545-5017.70529

  • Efficacy and Safety of Romiplostim Versus Placebo in Immune Thrombocytopenia: A Systematic Review and Meta-Analysis
    on 11 août 2026

    Clin Appl Thromb Hemost. 2026 Jan-Dec;32:10760296261476820. doi: 10.1177/10760296261476820. Epub 2026 Aug 6.ABSTRACTBackgroundImmune thrombocytopenia (ITP) is an autoimmune disorder characterized by isolated thrombocytopenia and increased bleeding risk. Although first-line therapies such as corticosteroids and intravenous immunoglobulin provide initial benefit, many patients relapse or develop refractory disease. Romiplostim, a thrombopoietin receptor agonist, has emerged as an effective second-line therapy; however, evidence comparing its efficacy and safety with placebo across both pediatric and adult populations remains limited.MethodsA systematic review and meta-analysis of randomized controlled trials (RCTs) was conducted following PRISMA guidelines (PROSPERO: CRD420261357179). PubMed, Scopus, Cochrane Library, and Google Scholar were searched up to March 2026. RCTs comparing romiplostim with placebo in ITP patients were included. A random-effects model was used to calculate mean differences (MD) and risk ratios (RR) with 95% confidence intervals (CI). Risk of bias was assessed using the Cochrane RoB 2 tool. Certainty of evidence was evaluated using the GRADE approach.ResultsNine RCTs (n=748) were included. Romiplostim significantly increased platelet counts at week 2 (MD 25.71; 95% CI 9.41-42.02), week 4 (MD 42.74; 95% CI 26.82-58.66), week 6 (MD 50.42; 95% CI 33.87-66.97), and week 8 (MD 49.14; 95% CI 20.45-77.83), with larger effects in adults. Platelet response rates were significantly higher with romiplostim (RR 6.10). The proportion achieving ≥20×109/L increase improved (RR 3.23), and the need for rescue therapy decreased (RR 0.49). Adverse events were comparable between groups, with slight increases in myalgia and rash.ConclusionRomiplostim is an effective and well-tolerated therapy for ITP, significantly improving platelet outcomes and reducing rescue therapy requirements without major safety concerns.PMID:42559680 | DOI:10.1177/10760296261476820

  • Recognition of ear, nose and throat involvement in patients with ANCA-associated vasculitis: from in-depth interviews to insights for the future
    on 11 août 2026

    Eur Arch Otorhinolaryngol. 2026 Aug 7. doi: 10.1007/s00405-026-10517-0. Online ahead of print.ABSTRACTPURPOSE: Ear, nose, and throat (ENT) manifestations are common in antineutrophil cytoplasmic antibody-associated vasculitis (AAV). Although timely intervention is crucial, diagnosis and treatment are often delayed due to its rarity and nonspecific symptoms. Currently, no standardized tool exists to assess AAV activity in the ENT region. This study aims to determine key indicators of active AAV in the ENT region, thereby supporting the development of a systematic examination method.METHODS: A qualitative exploratory multicentre study was conducted. In-depth interviews with four otorhinolaryngologists were thematically analysed. Identified ENT symptoms and rhinoscopic findings associated with AAV were compiled, and statements regarding diagnosis and management were formulated. These items then formed the basis of an online survey presented to Dutch otorhinolaryngologists. Respondents rated items on a 0-10 agreement scale.RESULTS: Of 29 initiated surveys, 25 (86.2%) were completed. Highest-rated symptoms supporting active AAV included nasal crusting (9.7/10), systemic symptoms (7.5/10), no effect of conventional therapy for chronic rhinosinusitis (7.6/10) and epistaxis (7.5/10). Most suspect rhinoscopic findings were nasal crusting (9.3/10), mucosal haemorrhaging (8.8/10) and septal perforation (8.6/10). Respondents strongly agreed that ENT involvement should be monitored by an otorhinolaryngologist (8.3/10), nasal lavage should precede rhinoscopy (7.6/10) and thorough nasal hygiene instructions should be provided (9.1/10).CONCLUSION: Key indicators of AAV activity include nasal crusting, lack of response to conventional treatment, systemic symptoms, nasal crusting, mucosal haemorrhaging and septal perforation. These data may facilitate the establishment of a standardized scoring system to optimize diagnostic accuracy and disease monitoring.PMID:42562907 | DOI:10.1007/s00405-026-10517-0

  • Reused skin grafts for treating hidradenitis suppurativa: A systematic review
    on 11 août 2026

    JPRAS Open. 2026 Jun 17;51:430-443. doi: 10.1016/j.jpra.2026.06.005. eCollection 2026 Sep.ABSTRACTBACKGROUND: Hidradenitis suppurativa (HS) is a chronic, relapsing inflammatory disease in which wide excision remains the most reliable option for durable disease control in moderate to severe cases. Reconstruction after excision is challenging. Reused or recycled split-thickness skin grafts, harvested from excised HS tissue and reapplied after processing, have been proposed to reduce donor-site morbidity, but their clinical value remains uncertain.OBJECTIVE: To systematically evaluate the outcomes of reused skin grafts following surgical excision of HS, with emphasis on recurrence, graft take and procedure-related morbidity.METHODS: A PRISMA-compliant systematic review was conducted using PubMed, Web of Science and Google Scholar from inception to the final search date. Studies reporting HS excision followed by reused or recycled skin grafting were included. Outcomes of interest were recurrence, graft survival, complications and follow-up duration. Given heterogeneity, a narrative synthesis was performed. Risk of bias was assessed using design-appropriate tools.RESULTS: Sixteen studies met inclusion criteria, including five systematic reviews, two retrospective cohorts and nine case reports or small case series. Primary reused-graft reports comprised approximately 41 patients with follow-up ranging from 6 to 113 months. Across these series, no surgical-site recurrences were reported (0/41), corresponding to an exact 95% confidence interval of 0-7.0%. Complications were generally minor. However, in the largest reused-graft series, which included 18 patients, 8 (44%) required supplemental conventional donor grafts. Broader pooled estimates from conventional graft literature reported recurrence rates ranging from 2% to 18%, reflecting substantial heterogeneity.CONCLUSIONS: Reused skin grafting appears feasible and safe in selected HS patients, with encouraging short- to medium-term durability. Current evidence supports feasibility rather than definitive comparative effectiveness, underscoring the need for well-designed prospective studies.PMID:42565004 | PMC:PMC13446193 | DOI:10.1016/j.jpra.2026.06.005

  • Prevalence and risk factors of bone fragility in duchenne muscular dystrophy: A systematic review and meta-analysis
    on 11 août 2026

    Osteoporos Int. 2026 Aug 11. doi: 10.1007/s00198-026-08174-4. Online ahead of print.ABSTRACTDuchenne muscular dystrophy (DMD) is an X-linked recessive disorder that is due to mutations in the dystrophin gene which encodes the dystrophin protein. Many patients face an increased risk of bone fragility and develop secondary osteoporosis as a result of the combined effects of progressive muscle weakness, immobilization, and the osteotoxic properties of glucocorticoids (GCs). The present study showed that the prevalence of low BMD and fracture in DMD patients reached as high as 0.62 and 0.38, respectively, with contributing risk factors extending beyond GCs and loss of ambulation to include older age, vitamin D deficiency, fat mass accumulation, and hormonal imbalances. Therefore, clinical trials of bone-protective therapies and strategies to improve bone health in boys with DMD are urgently warranted.PURPOSE: Poor skeletal health, characterized by rapid bone mineral density decline, causes substantial morbidity in patients with Duchenne muscular dystrophy (DMD). The present systematic review and meta-analysis aimed to review comprehensive findings on the prevalence and risk factors of low bone mineral density (BMD) and fractures in DMD.METHODS: PubMed, Embase, Cochrane library, and Web of Science databases were systematically searched for studies reporting prevalence of fractures, low BMD, or data on risk factors in DMD patients. Random‑effects meta‑analyses estimated pooled prevalence of low BMD and fractures. Subgroup analyses examined variations by region, GCs use, fracture location, and ambulatory stage.RESULTS: A total of 43 studies involving 4940 patients were reviewed. The prevalence of low BMD from 0.16 to 0.93, with an overall prevalence of 0.62 (95% CI, 0.45-0.79). Fracture prevalence spanned from 0.07 to 0.87, yielding a pooled estimate of 0.38 (95% CI, 0.32-0.43). North America had the highest fracture prevalence at 0.47 (95% CI, 0.39-0.56), followed by Oceania at 0.47 (95% CI, 0.40-0.54), Europe at 0.30 (95% CI, 0.24-0.37), and Asia at the lowest 0.17 (95% CI, 0.07-0.27). Fracture prevalence was higher in glucocorticoids (GCs)-treated patients (0.39 vs. 0.23 in non-GCs) and increased with longer GCs duration, being 0.23 (95% CI, 0.11-0.35) for 3 years, 0.33 (95% CI, 0.24-0.43) for 3-6 years, and 0.59 (95% CI, 0.42-0.75) for ≥ 6 years of GCs exposure. Bone fragility in DMD is driven by multifactorial risk factors, with contributors extending […]

Publications CRCHUM

  • Improvement of Sickle Cell Disease Care Mitigates the Healthcare Utilization Induced by Increased Prevalence: Experience of a Tertiary Pediatric Center
    on 11 août 2026

    Pediatr Blood Cancer. 2026 Aug 3:e70607. doi: 10.1002/1545-5017.70607. Online ahead of print.ABSTRACTBACKGROUND: Sickle cell disease (SCD) has undergone major changes in the last decades. Its prevalence has been steadily increasing and numerous advances have been made in the management of the disease. However, the effect in real-life setting of these major changes is unknown, particularly in a Canadian environment.PROCEDURE: We aimed to assess the impact of these changes on the evolution in the healthcare utilization (HCU) of children with SCD in a Canadian pediatric tertiary center from 2009 to 2024.RESULTS: The number of children with SCD followed at our center more than doubled (221 to 499 patients). Practice changes reduced mean time to hydroxyurea introduction, resulting in a steady annual increase in mean fetal hemoglobin across the patients with HbSS. Reflecting the number of patients followed, the absolute number of annual outpatient and ED visits increased significantly (1207 to 1769 and 192 to 526, respectively). However, there was a significant decrease in the mean number of outpatient visits (5.46 to 3.55 [p = 0.03]) and hospitalizations (1.18 to 0.58 [p<0.0001]) by patient annually. There was also a reduction in the percentage of admissions after an ED visit (62.5% to 42.6% [p<0.0001]).CONCLUSION: Although the number of patients with SCD followed at our institution drastically increased in 15 years, the practice changes were effective and likely mitigated the impact on admissions. It illustrates the significant impact of improved management in the care of patients with SCD. Allocated resources need to reflect the overall increase in HCU to allow for continuous optimal care of this vulnerable population.PMID:42544872 | DOI:10.1002/1545-5017.70607

  • Prevalence, Detection, and Trajectory of Combined Pulmonary Fibrosis and Emphysema
    on 11 août 2026

    Chest. 2026 Jul 30:S0012-3692(26)00952-9. doi: 10.1016/j.chest.2026.05.051. Online ahead of print.ABSTRACTBACKGROUND: Combined pulmonary fibrosis and emphysema (CPFE) is an important phenotype in patients with fibrotic interstitial lung disease (ILD).RESEARCH QUESTION: What is the prevalence of CPFE? What is the predictive performance of the CPFE index and of physiologic airflow obstruction for CT imaging emphysema extents? Is the extent of emphysema on CT imaging associated with outcomes in patients with fibrotic ILD?STUDY DESIGN AND METHODS: Consecutive patients with idiopathic pulmonary fibrosis (IPF) and non-IPF fibrotic ILD who underwent a standardized visual assessment of the baseline high-resolution CT imaging of the chest from a prospective registry were included. CPFE was defined as emphysema extent of ≥ 15% on CT imaging, with sensitivity analyses using different thresholds: ≥ 5%, ≥ 10%, and ≥ 20%. Emphysema subtypes were categorized based on their predominant distribution: centrilobular, paraseptal, or panlobular. The CPFE index was derived using measurements of spirometry and diffusion capacity of the lungs for CO2.RESULTS: The prevalence of CPFE at baseline was 20% for IPF (92/455) and 7% in non-IPF fibrotic ILD (84/1121). Both FEV1 to FVC ratio less than the lower limit of normal and < 0.70 showed poor sensitivity (IPF, 11.1%-18.9%; non-IPF fibrotic ILD, 13.1%-23.7%) for detecting emphysema on CT imaging, although high specificity (IPF, 96.2%-98.8%; non-IPF fibrotic ILD, 92.8%-95.8%). The CPFE index was correlated moderately with extent of emphysema on CT imaging in both IPF (r = 0.48) and non-IPF fibrotic ILD (r = 0.41), but with poor agreement and wide limits of agreement on Bland-Altman analysis. Extent of emphysema on CT imaging of ≥ 20% was associated consistently with differences in lung function trajectories and worse transplant-free survival in IPF and non-IPF fibrotic ILD. No significant relationships were noted between emphysema subtypes and health outcomes.INTERPRETATION: Our results show that coexisting emphysema is important in both IPF and non-IPF fibrotic ILD, with extent of emphysema on CT imaging of ≥ 20% being associated with worse health outcomes. Both physiologic and radiologic assessments are needed to identify coexistent emphysema in patients with fibrotic ILD.PMID:42413722 | DOI:10.1016/j.chest.2026.05.051

 

 

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