Severe axial and pelvifemoral muscle damage in immune-mediated necrotizing myopathy evaluated by whole-body MRI.

Immune-mediated necrotizing myopathy Muscle imaging Myopathy Myositis Whole-body MRI

Journal

Seminars in arthritis and rheumatism
ISSN: 1532-866X
Titre abrégé: Semin Arthritis Rheum
Pays: United States
ID NLM: 1306053

Informations de publication

Date de publication:
12 2020
Historique:
received: 16 10 2019
revised: 03 02 2020
accepted: 21 02 2020
pubmed: 31 3 2020
medline: 30 9 2021
entrez: 31 3 2020
Statut: ppublish

Résumé

Our objective was to define the pattern and severity of muscle damage in immune-mediated necrotizing myopathy (IMNM) and its relationship with clinical and serological features. IMNM patients with a whole-body MRI (n=42) were included and compared to sporadic inclusion-body myositis (s-IBM) patients (n=60). Fat replacement was estimated using the Mercuri score in 55 muscles. Overall lesion load was defined as the sum of all abnormal Mercuri scores (reported in % maximal score) and lesion load quotient was defined as the overall lesion load divided by disease duration. Linear relationships between variables were assessed and multidimensional analysis was performed to define homogenous groups of patients. IMNM patients were aged 48.1±15.8 years and had a disease duration of 9.8±8.1 years. Most severely affected muscle groups were located in the pelvifemoral and lumbar region. Unsupervised analysis showed two subgroups of patients: one with mild lesion load (15±10%, n=32/42) and another with severe lesion load (60±10%, n=10/42: p<0.001) associated with a mean disease duration of 6.8±6.0 years and 19.5±5.7 years, respectively (p<0.0001). Correlational studies confirmed that disease duration was the most important predictor of muscle damage. Multivariate analyses demonstrated a more severe involvement in select muscle groups in females and seropositive patients. No difference was found in overall lesion load quotient of IMNM compared to IBM (p=0.07) but with a distinct muscle pattern. IMNM is associated with severe axial and pelvifemoral muscle damage. Disease duration is an important predictor of muscle damage. IMNM and s-IBM patients have a comparable damage burden.

Sections du résumé

BACKGROUND
Our objective was to define the pattern and severity of muscle damage in immune-mediated necrotizing myopathy (IMNM) and its relationship with clinical and serological features.
METHODS
IMNM patients with a whole-body MRI (n=42) were included and compared to sporadic inclusion-body myositis (s-IBM) patients (n=60). Fat replacement was estimated using the Mercuri score in 55 muscles. Overall lesion load was defined as the sum of all abnormal Mercuri scores (reported in % maximal score) and lesion load quotient was defined as the overall lesion load divided by disease duration. Linear relationships between variables were assessed and multidimensional analysis was performed to define homogenous groups of patients.
RESULTS
IMNM patients were aged 48.1±15.8 years and had a disease duration of 9.8±8.1 years. Most severely affected muscle groups were located in the pelvifemoral and lumbar region. Unsupervised analysis showed two subgroups of patients: one with mild lesion load (15±10%, n=32/42) and another with severe lesion load (60±10%, n=10/42: p<0.001) associated with a mean disease duration of 6.8±6.0 years and 19.5±5.7 years, respectively (p<0.0001). Correlational studies confirmed that disease duration was the most important predictor of muscle damage. Multivariate analyses demonstrated a more severe involvement in select muscle groups in females and seropositive patients. No difference was found in overall lesion load quotient of IMNM compared to IBM (p=0.07) but with a distinct muscle pattern.
CONCLUSION
IMNM is associated with severe axial and pelvifemoral muscle damage. Disease duration is an important predictor of muscle damage. IMNM and s-IBM patients have a comparable damage burden.

Identifiants

pubmed: 32222382
pii: S0049-0172(20)30062-7
doi: 10.1016/j.semarthrit.2020.02.009
pii:
doi:

Types de publication

Journal Article Research Support, Non-U.S. Gov't

Langues

eng

Sous-ensembles de citation

IM

Pagination

1437-1440

Informations de copyright

Crown Copyright © 2020. Published by Elsevier Inc. All rights reserved.

Déclaration de conflit d'intérêts

Declaration of Competing Interest None.

Auteurs

Océane Landon-Cardinal (O)

Department of Internal Medicine and Clinical Immunology and Inflammation-Immunopathology-Biotherapy Department (I2B), Pitié-Salpêtrière University Hospital, Assistance Publique-Hôpitaux de Paris, East Paris Neuromuscular Diseases Reference Center, Inserm U974, Sorbonne Université, Paris 6, Paris, France; Department of Medicine, Faculty of Medicine, University of Montreal, Montreal, Quebec, Canada; Division of Rheumatology and Research Center, Centre Hospitalier de l'Université de Montréal, Montreal, Quebec, Canada. Electronic address: oceane.landon-cardinal@umontreal.ca.

Cédi Koumako (C)

Laboratoire de RMN AIM & CEA, Centre d'Explorations Neuro-musculaires, Institut de Myologie, Paris, France.

Giulia Hardouin (G)

Département de Biostatistiques, Santé Publique et Information Médicale, Groupe Hospitalier Pitié-Salpêtrière, Assistance Publique-Hôpitaux de Paris, Paris, France.

Benjamin Granger (B)

Département de Biostatistiques, Santé Publique et Information Médicale, Groupe Hospitalier Pitié-Salpêtrière, Assistance Publique-Hôpitaux de Paris, Paris, France.

Harmen Reyngoudt (H)

Laboratoire de RMN AIM & CEA, Centre d'Explorations Neuro-musculaires, Institut de Myologie, Paris, France.

Jean-Marc Boisserie (JM)

Laboratoire de RMN AIM & CEA, Centre d'Explorations Neuro-musculaires, Institut de Myologie, Paris, France.

Aude Rigolet (A)

Department of Internal Medicine and Clinical Immunology and Inflammation-Immunopathology-Biotherapy Department (I2B), Pitié-Salpêtrière University Hospital, Assistance Publique-Hôpitaux de Paris, East Paris Neuromuscular Diseases Reference Center, Inserm U974, Sorbonne Université, Paris 6, Paris, France.

Baptiste Hervier (B)

Department of Internal Medicine and Clinical Immunology and Inflammation-Immunopathology-Biotherapy Department (I2B), Pitié-Salpêtrière University Hospital, Assistance Publique-Hôpitaux de Paris, East Paris Neuromuscular Diseases Reference Center, Inserm U974, Sorbonne Université, Paris 6, Paris, France.

Nicolas Champtiaux (N)

Department of Internal Medicine and Clinical Immunology and Inflammation-Immunopathology-Biotherapy Department (I2B), Pitié-Salpêtrière University Hospital, Assistance Publique-Hôpitaux de Paris, East Paris Neuromuscular Diseases Reference Center, Inserm U974, Sorbonne Université, Paris 6, Paris, France.

Perrine Guillaume-Jugnot (P)

Department of Internal Medicine and Clinical Immunology and Inflammation-Immunopathology-Biotherapy Department (I2B), Pitié-Salpêtrière University Hospital, Assistance Publique-Hôpitaux de Paris, East Paris Neuromuscular Diseases Reference Center, Inserm U974, Sorbonne Université, Paris 6, Paris, France.

Mathieu Vautier (M)

Department of Internal Medicine and Clinical Immunology and Inflammation-Immunopathology-Biotherapy Department (I2B), Pitié-Salpêtrière University Hospital, Assistance Publique-Hôpitaux de Paris, East Paris Neuromuscular Diseases Reference Center, Inserm U974, Sorbonne Université, Paris 6, Paris, France.

Olivier Benveniste (O)

Department of Internal Medicine and Clinical Immunology and Inflammation-Immunopathology-Biotherapy Department (I2B), Pitié-Salpêtrière University Hospital, Assistance Publique-Hôpitaux de Paris, East Paris Neuromuscular Diseases Reference Center, Inserm U974, Sorbonne Université, Paris 6, Paris, France.

Pierre G Carlier (PG)

Laboratoire de RMN AIM & CEA, Centre d'Explorations Neuro-musculaires, Institut de Myologie, Paris, France.

Yves Allenbach (Y)

Department of Internal Medicine and Clinical Immunology and Inflammation-Immunopathology-Biotherapy Department (I2B), Pitié-Salpêtrière University Hospital, Assistance Publique-Hôpitaux de Paris, East Paris Neuromuscular Diseases Reference Center, Inserm U974, Sorbonne Université, Paris 6, Paris, France.

Articles similaires

[Redispensing of expensive oral anticancer medicines: a practical application].

Lisanne N van Merendonk, Kübra Akgöl, Bastiaan Nuijen
1.00
Humans Antineoplastic Agents Administration, Oral Drug Costs Counterfeit Drugs

Smoking Cessation and Incident Cardiovascular Disease.

Jun Hwan Cho, Seung Yong Shin, Hoseob Kim et al.
1.00
Humans Male Smoking Cessation Cardiovascular Diseases Female
Humans United States Aged Cross-Sectional Studies Medicare Part C
1.00
Humans Yoga Low Back Pain Female Male

Classifications MeSH