痴呆症照护：家庭和照护者指南

Overview

Systemic lupus erythematosus (SLE), commonly called lupus, is a chronic autoimmune disease. In lupus, the immune system mistakenly attacks healthy tissues, causing inflammation that can affect the skin, joints, kidneys, heart, lungs, brain, and blood cells. Symptoms often come and go in periods called flares and remissions. There is no cure yet, but modern treatments help most people control the disease, reduce damage, and maintain a good quality of life.

Lupus is more common in women of childbearing age and occurs more frequently in people of African, Hispanic, Asian, and Native American descent. Early diagnosis and consistent treatment are key to preventing long-term organ damage.

Signs & Symptoms

Lupus symptoms vary widely from person to person and can change over time. Common signs include extreme fatigue, joint pain and swelling (especially in the hands, wrists, and knees), a butterfly-shaped rash across the cheeks and nose, skin rashes that worsen with sun exposure, fever, mouth or nose ulcers, hair loss, and sensitivity to sunlight (photosensitivity).

• Persistent fatigue that rest does not fully relieve
• Joint pain, stiffness, or swelling
• Butterfly (malar) rash or other skin rashes
• Chest pain when taking a deep breath (pleurisy)
• Swelling in legs, feet, or around the eyes (possible kidney involvement)
• Fingers turning white or blue in the cold (Raynaud’s phenomenon)
• Headaches, confusion, or memory problems
• Unexplained fever or weight changes

Causes & Risk Factors

The exact cause of lupus is unknown. It results from a combination of genetic predisposition, hormones, and environmental triggers. The immune system produces autoantibodies that attack the body’s own cells and tissues, leading to inflammation and tissue damage.

• Genetics: Family history of lupus or other autoimmune diseases increases risk
• Sex and hormones: Much more common in women; estrogen may play a role
• Environment: Ultraviolet light, infections, certain drugs, and smoking can trigger disease in susceptible people
• Age: Most often diagnosed between ages 15 and 45
• Race and ethnicity: Higher rates and sometimes more severe disease in certain populations

Diagnosis

There is no single test for lupus. Diagnosis is based on a combination of symptoms, physical exam findings, blood and urine tests, and sometimes imaging or biopsy. A rheumatologist (specialist in autoimmune and joint diseases) usually leads the evaluation.

• Blood tests: Antinuclear antibody (ANA) test is often positive; more specific antibodies (anti-dsDNA, anti-Smith) support the diagnosis
• Complete blood count (CBC) to check for anemia or low white cells/platelets
• Kidney function tests and urine analysis for protein or blood
• Complement levels (C3, C4) that may be low during active disease
• Skin or kidney biopsy in selected cases

Doctors use established classification criteria that consider clinical features and lab results. Early referral to a specialist improves outcomes.

Treatment & Management

Treatment is highly individualized and aims to control inflammation, prevent flares, minimize organ damage, and manage symptoms while limiting medication side effects. Most people need a combination of medicines plus lifestyle measures. A rheumatologist typically coordinates care with other specialists as needed (nephrologist, dermatologist, cardiologist).

Common medication classes include:

• Nonsteroidal anti-inflammatory drugs (NSAIDs) for mild joint and muscle pain
• Antimalarials such as hydroxychloroquine — a cornerstone therapy that reduces flares and protects organs for most patients
• Corticosteroids (prednisone or similar) for moderate to severe flares; used at the lowest effective dose for the shortest time
• Immunosuppressants (mycophenolate, azathioprine, methotrexate, cyclophosphamide) for organ-threatening disease
• Biologic therapies such as belimumab or anifrolumab that target specific parts of the immune system
• Other agents for specific problems (blood pressure medicines for kidney disease, anticoagulants if blood clots occur)

Regular blood and urine tests monitor disease activity and medication safety. Vaccinations (with inactivated vaccines when possible) and bone-health measures are important because of immune-suppressing drugs and steroids.

Living With It

Living well with lupus means partnering with your care team, recognizing early signs of flares, protecting yourself from known triggers, and supporting overall health. Many people work, raise families, and enjoy active lives with proper management. Emotional support, pacing activities, and open communication about symptoms help reduce the impact of the disease.

Pregnancy requires special planning with a high-risk obstetrician and rheumatologist because disease activity and some medicines can affect mother and baby. Most women with well-controlled lupus can have successful pregnancies.