About IgA Vasculitis (Henoch-Schonlein Purpura)
The exact causes of IgA vasculitis are not fully understood. However, it is believed to occur when the body's immune system mistakenly attacks its own cells and organs. Some potential triggers for this immune system response include:
- Infections: Many people with IgA vasculitis have had an upper respiratory tract infection before developing the condition.
- Bacteria and viruses: Certain bacteria and viruses have been linked to IgA vasculitis.
- Foods: Some foods may trigger an immune response leading to IgA vasculitis.
- Immunizations: In rare cases, immunizations have been associated with the development of IgA vasculitis.
- Insect bites: Bites from certain insects have been implicated as a possible trigger.
- Medicines: Certain medications have been associated with the development of IgA vasculitis.
Non-modifiable risk factors for IgA vasculitis are factors that cannot be changed. These include:
- Genetics: Certain genes may increase the risk for IgA vasculitis.
- Age: IgA vasculitis is more common in children than adults.
- Sex: Boys are more likely to get IgA vasculitis than girls are.
Modifiable risk factors are factors that can be influenced or changed. The modifiable risk factors for IgA vasculitis are not well understood. However, maintaining overall good health and hygiene practices may help reduce the risk of infections that could potentially trigger the condition.
It's important to note that more research is needed to fully understand the causes and risk factors of IgA vasculitis. If you have concerns about this condition, it's best to consult with a healthcare professional for personalized advice.
The most common early symptoms of IgA vasculitis include:
- Rash: A raised rash that looks like red or purple bruises or small red dots. It usually appears on the legs and buttocks but can also occur on the arms, torso, and face. The rash does not disappear or turn pale when pressed and is not painful or itchy.
- Abdominal pain: Ranging from mild to severe, with possible nausea or vomiting. In some cases, blood may appear in the stool, although the bleeding is usually not severe.
- Joint pain and swelling: Often affecting the knees and ankles, but can also occur in the elbows, wrists, and small joints of the fingers.
As IgA vasculitis progresses or becomes more severe, additional symptoms may occur:
- Kidney problems: Hematuria (blood in the urine) is a common sign that IgA vasculitis has affected the kidneys. Proteinuria (large amounts of protein in the urine) and high blood pressure are signs of more severe kidney involvement.
- Central nervous system symptoms: Seizures can occur in rare cases.
- Lung symptoms: Pneumonia has been seen in rare cases.
- Testicular swelling: Boys with IgA vasculitis may develop swelling of the testicles.
It's important to note that these symptoms can occur in any order and not all individuals will experience all of them. If you suspect you have IgA vasculitis or are concerned about your symptoms, it's best to consult with a healthcare professional for an accurate diagnosis and appropriate management.
To diagnose IgA vasculitis, health care professionals commonly use the following examinations, tests, and procedures:
- Medical history: Your doctor will discuss your medical history to understand any underlying conditions or factors that may contribute to IgA vasculitis.
- Physical examination: A thorough physical examination will be conducted to look for signs of IgA vasculitis, such as a rash on the legs, buttocks, arms, torso, or face.
- Skin biopsy: This test involves removing a small sample of skin to examine under a microscope. It helps confirm the diagnosis by checking for antibody deposits on the skin.
- Blood and urine tests: These tests assess the health of your kidneys. They can detect the presence of blood or protein in your urine, indicating kidney involvement. Blood tests also evaluate kidney function.
- Ultrasound: Depending on your symptoms, an ultrasound may be performed to check for gastrointestinal or kidney problems.
To determine the stage or severity of IgA vasculitis, additional examinations, tests, and procedures may be recommended:
- Kidney biopsy: This procedure confirms the diagnosis and provides information about the extent of kidney damage. The results help guide treatment decisions.
- Monitoring symptoms: Health care professionals closely monitor your symptoms to assess improvement.
- Continued blood and urine tests: These tests track kidney function for at least six months after most symptoms disappear. If kidney damage is identified, closer monitoring is necessary due to increased risk of chronic kidney disease.
Remember, these are general recommendations and may vary depending on individual cases. Always consult with your health care professional for personalized advice.
The goals of treatment for IgA vasculitis are as follows:
- Relieve symptoms
- Decreasing the likelihood of disease recurrence.
- Limit and reduce complications
- Limit side effects of treatment
- Improve quality of life
To achieve these treatment goals, health care professionals may recommend the following:
- Medication: Corticosteroids may be prescribed to relieve symptoms such as abdominal pain, joint pain, and swelling. In severe cases, immunosuppressive therapy may be necessary.
- Therapeutic procedures: In rare instances when complications of the bowel occur, corrective procedures such as a lower GI series or surgery may be required.
It's important to note that treatment approaches may vary depending on factors such as disease severity, age, kidney function, and individual patient characteristics. Always consult with a healthcare professional for personalized advice. Medication dosing may be affected by many factors. Check with your healthcare professional about dosing for your individual situation. Other side effects can occur. Check with your healthcare professional or read the information provided with your medication for additional side effect information.