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Systemic lupus erythematosus in children. 

Pathogenesis, clinic, diagnosis, treatment.

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Systemic lupus erythematosus (SLE) is an autoimmune disease that can affect people of all ages, including children. 

Here's an in-depth insight into the pathogenesis, clinical manifestations, diagnosis, and treatment of systemic lupus erythematosus in children:

Pathogenesis:

The pathogenesis of systemic lupus erythematosus involves dysregulation of the immune system, leading to the production of autoantibodies, immune complex formation, and tissue inflammation. While the exact cause of SLE is not fully understood, there are several factors known to contribute to its development, including genetic predisposition, environmental triggers, and hormonal influences, particularly in adolescent females. In children, the pathogenesis of SLE shares similarities with the adult population, characterized by immune system dysfunction and systemic inflammation.

Clinical Manifestations:

Systemic lupus erythematosus can present with a wide range of clinical manifestations in children, affecting multiple organ systems. Common clinical features of SLE in children may include:

Malar rash: 

A rash resembling a butterfly shape across the cheeks and bridge of the nose.

Photosensitivity: 

Skin sensitivity to sunlight, leading to rashes or skin lesions.

Arthritis: 

Joint pain, swelling, and stiffness, often affecting multiple joints.

Renal involvement: 

Nephritis leading to proteinuria, hematuria, and impaired kidney function.

Neurological manifestations: 

Cognitive dysfunction, seizures, or other neurological symptoms.

Hematological abnormalities: 

Anemia, leukopenia, or thrombocytopenia.

Cardiopulmonary involvement: 

Pericarditis, pleuritis, or pulmonary hypertension.

Other systemic symptoms: 

Fever, fatigue, weight loss, and lymphadenopathy.

Diagnosis:

The diagnosis of systemic lupus erythematosus in children involves a combination of clinical and laboratory assessments. Diagnostic criteria, such as the Systemic Lupus International Collaborating Clinics (SLICC) criteria for SLE, are used to guide the diagnosis. Key diagnostic steps may include:

Clinical evaluation: 

Assessment of symptoms, physical examination findings, and medical history, including family history of autoimmune diseases.

Laboratory tests: 

Blood tests to assess for markers such as antinuclear antibodies (ANA), anti-double-stranded DNA antibodies, complement levels, and other specific autoantibodies associated with SLE.

Imaging studies: 

Imaging modalities such as ultrasound, computed tomography (CT), or magnetic resonance imaging (MRI) may be used to evaluate organ involvement, such as kidney or central nervous system manifestations.

Biopsy: 

In cases of organ involvement, such as kidney or skin manifestations, a biopsy may be performed to confirm the diagnosis and assess the degree of inflammation and tissue damage.

Treatment:

The management of systemic lupus erythematosus in children aims to control symptoms, minimize disease activity, and prevent organ damage. Treatment approaches may involve:

Medications: 

Use of nonsteroidal anti-inflammatory drugs (NSAIDs), corticosteroids, disease-modifying antirheumatic drugs (DMARDs) such as hydroxychloroquine, and immunosuppressive agents to reduce inflammation and autoimmune activity.

Individualized care: 

Tailoring treatment to address specific organ involvement and overall disease activity based on the child's clinical presentation and disease severity.

Comprehensive care: 

Involvement of a multidisciplinary care team, including pediatric rheumatologists, nephrologists, dermatologists, and other specialists as needed, to provide comprehensive and holistic care for the child with SLE.

Monitoring and follow-up: 

Regular monitoring of disease activity, response to treatment, and potential medication-related side effects, as well as adjustments to treatment plans as necessary.

In summary, systemic lupus erythematosus in children shares many features with the adult population and can affect multiple organ systems, requiring a multidisciplinary approach for diagnosis and management. While the precise treatment plan may vary based on the individual child's clinical manifestations and disease course, early diagnosis, comprehensive care, and appropriate treatment strategies are crucial to optimize outcomes and quality of life for children with SLE.

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