N04.B2

Clinical Causes: Chronic immune system activation leading to immune complex deposition in the kidneys Underlying infections such as hepatitis B or C, or bacterial infections Autoimmune diseases like systemic lupus erythematosus (SLE) Certain genetic factors that predispose individuals to immune complex formation Other systemic conditions that trigger immune responses impacting the kidneys

Key Symptoms: Swelling, especially around the eyes, ankles, and abdomen Foamy or frothy urine due to excess protein Unintended weight gain from fluid retention Fatigue and weakness High blood pressure Loss of appetite Potential presence of blood in the urine

Diagnosis Path: Diagnosis involves a combination of laboratory tests and medical evaluations. Urinalysis is performed to detect protein and blood in the urine. Blood tests help assess kidney function and immune activity levels. A kidney biopsy may be necessary to confirm immune complex deposits and specific kidney damage patterns, guiding appropriate treatment strategies.

Treatment Protocols: Managing this condition focuses on controlling symptoms and addressing the underlying causes. Approaches include: - Use of corticosteroids and immunosuppressive medications to reduce immune system activity - Blood pressure control with antihypertensive drugs, particularly those that reduce protein loss - Diuretics to manage swelling and fluid retention - Dietary modifications, such as a low-salt diet and adequate protein intake - Managing any underlying infections or autoimmune diseases - Regular monitoring of kidney function and protein levels in urine In severe cases, advanced treatments like plasmapheresis or dialysis might be needed, especially if kidney function deteriorates significantly.