IgA nephropathyNephropathy - IgA; Berger disease
IgA nephropathy is a kidney disorder in which antibodies called IgA build up in kidney tissue. Nephropathy is damage, disease, or other problems with the kidney.
IgA nephropathy is also called Berger disease.
IgA is a protein, called an antibody, that helps the body fight infections. IgA nephropathy occurs when too much of this protein is deposited in the kidneys. IgA builds up inside the small blood vessels of the kidney. Structures in the kidney called glomeruli become inflamed and damaged.
Aplastic is a medical term that means:Did not grow or develop normallyDid not mature fullyBecame unable to form new tissue
Acute means sudden or severe. Acute symptoms appear, change, or worsen rapidly. It is the opposite of chronic.
Glomerulonephritis is a type of kidney disease in which the part of your kidneys that helps filter waste and fluids from the blood is damaged....
Risk factors include:
- A personal or family history of IgA nephropathy or Henoch-Schönlein purpura, a form of vasculitis that affects many parts of the body
Purpura is purple-colored spots and patches that occur on the skin, and in mucus membranes, including the lining of the mouth.Read Article Now Book Mark Article
- White or Asian ethnicity
IgA nephropathy can occur in people of all ages, but it most often affects males in their teens to late 30s.
There may be no symptoms for many years.
When there are symptoms, they may include:
- Bloody urine that starts during or soon after a respiratory infection
- Repeated episodes of dark or bloody urine
- Swelling of the hands and feet
- Symptoms of chronic kidney disease
Exams and Tests
IgA nephropathy is most often discovered when a person with no other symptoms of kidney problems has one or more episodes of dark or bloody urine.
There are no specific changes seen during a physical examination. Sometimes, the blood pressure may be high or there may be swelling of the body.
- Blood urea nitrogen (BUN) test to measure kidney function
- Creatinine blood test to measure kidney function
- Kidney biopsy to confirm the diagnosis
- Urine immunoelectrophoresis
The goal of treatment is to relieve symptoms and prevent or delay chronic renal failure.
Chronic renal failure
Chronic kidney disease is the slow loss of kidney function over time. The main job of the kidneys is to remove wastes and excess water from the body...
The treatment may include:
- Angiotensin-converting enzyme (ACE) inhibitors and angiotensin receptor blockers (ARBs) to control high blood pressure and swelling (edema)
- Corticosteroids, other drugs that suppress the immune system
- Fish oil
- Medicines to lower cholesterol
Salt and fluids may be restricted to control swelling. A low-to-moderate protein diet may be recommended in some cases.
Proteins are the building blocks of life. Every cell in the human body contains protein. The basic structure of protein is a chain of amino acids. ...
Eventually, many people must be treated for chronic kidney disease and may need dialysis.
Dialysis treats end-stage kidney failure. It removes waste from your blood when your kidneys can no longer do their job. There are different types o...
IgA nephropathy gets worse slowly. In many cases, it does not get worse at all. Your condition is more likely to get worse if you have:
- High blood pressure
- Large amounts of protein in the urine
- Increased BUN or creatinine levels
When to Contact a Medical Professional
Call your health care provider if you have bloody urine or if you are producing less urine than usual.
Feehally J, Floege J. Immunoglobulin A nephropathy and IgA vasculitis (Henoch-Schönlein purpura). In: Feehally J, Floege J, Tonelli M, Johnson RJ, eds. Comprehensive Clinical Nephrology. 6th ed. Philadelphia, PA: Elsevier; 2019:chap 23.
Saha MK, Pendergraft WF, Jennette JC, Falk RJ. Primary glomerular disease. In: Yu ASL, Chertow GM, Luyckx VA, Marsden PA, Skorecki K, Taal MW, eds. Brenner and Rector's The Kidney. 11th ed. Philadelphia, PA: Elsevier; 2020:chap 31.
Kidney anatomy - illustration
The kidneys are responsible for removing wastes from the body, regulating electrolyte balance and blood pressure, and the stimulation of red blood cell production.
Review Date: 7/16/2019
Reviewed By: Walead Latif, MD, Nephrologist and Clinical Associate Professor, Rutgers Medical School, Newark, NJ. Review provided by VeriMed Healthcare Network. Also reviewed by David Zieve, MD, MHA, Medical Director, Brenda Conaway, Editorial Director, and the A.D.A.M. Editorial team.