Systemic lupus erythematosus (SLE) is a clinically common autoimmune disease characterized by abnormal immune response to autologous tissue, eventually resulting in systemic disorders and diverse clinical manifestations. The prevalence of women is significantly higher than that of men.
Musculoskeletal and joint affection represents one of the most common manifestations of systemic lupus erythematosus (SLE), and 95% of them have either arthralgia or arthritis during their disease course.
SLE arthropathy has main three different clinical types: nondeforming nonerosive arthritis; the most common type, deforming nonerosive arthropathy (Jaccoud's arthropathy) which has no bone erosions on conventional radiography and exists in up to 15% of the patients and erosive arthropathy (rhupus syndrome) which is overlap syndrome between rheumatoid arthritis (RA) and SLE and exist in \<5% of lupus patients.
In clinical practice, most lupus patients who have joint and tendon pains often have no apparent inflammation during physical examination. Joint and tendon inflammation has been documented in musculoskeletal ultrasound in patients without any signs of arthritis, thus suggesting the role of ultrasound in the evaluation of patients with nonspecific musculoskeletal manifestations such as arthralgia. And detection of the presence of underlying subclinical inflammatory changes.
Components of lymphocytes, antibodies, inflammatory cytokines, and complements in peripheral circulation vary among different active stages of SLE. Patients with higher disease activity often damage tissues and organs, many of which even threaten life. It is of great significance in SLE management to early and accurately determine the disease activity of patients.
We will investigate the role of musculoskeletal ultrasound for early detection of synovitis in SLE patients and its correlation with disease activity and neutrophil-to-C3 ratio (NC3R).
SLE patients without musculoskeletal manifestations diagnosed according to European League against Rheumatism (EULAR) and the American college of Rheumatology (ACR)criteria for classification of SLE.
• Overlap syndrome as rhupus patients, those with trauma, osteoarthritis, surgery of hand and wrist
non probability
Case-crossover
Cross-sectional
ultrasound contrast
DeviceAll participants will be subjected to full history taking, full clinical examination, laboratory investigations (complete blood count, erythrocyte sedimentation rate \[ESR\], C-reactive protein \[CRP\], blood urea, serum creatinine, serum glutamic-oxaloacetic transaminase \[SGOT\], serum glutamate-pyruvate transaminase \[SGPT\], immunological tests (antinuclear and anti-DNA antibodies and C3 and C4 levels), urine analysis, and 24-h urinary protein). SLE disease activity index (SELDAI) will be also calculated for every patient. (8) Musculoskeletal examination with power Doppler, the ultrasound examination will be performed at the musculoskeletal ultrasonography unit at the rheumatology division of the internal medicine department. Bilateral musculoskeletal US examinations of hands and wrists with power Doppler (PD) evaluation will be done for all patients. US examinations were performed using the standardized scanning technique according to EULAR guidelines for musculoskeletal US in rheumatolog
Role of musculoskeletal ultrasound for early detection of synovitis in SLE patient and its correlation with disease activity and neutrophil-to-C3 ratio.
early detection of synovitis in SLE patient
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Mervat Sayed Kamal Sayed
Lead sponsor
Assiut University
Sponsor institution
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