Vasculitis: Symptoms, Diagnosis, Causes & Treatment

Vasculitis is a medical condition characterized by the inflammation of your blood vessels. This inflammation can affect a single vessel or multiple areas, potentially impacting various organs throughout the body. When vessels become inflamed, they may narrow or develop blockages that restrict vital blood flow. This reduction in circulation can lead to a lack of oxygen in the affected tissues and organs.

General symptoms of this condition often include a persistent fever or sudden, unexplained weight loss. Patients may also experience chronic headaches, excessive fatigue, or generalized aching throughout the body.

Treatment for vasculitis is typically managed by a rheumatologist, vascular specialist, or primary care physician. Doctors often prescribe corticosteroids or immunosuppressants to reduce inflammation and prevent permanent damage to the affected areas.

Main symptoms

The specific symptoms of vasculitis depend heavily on which part of the body is affected:

• Skin: You may notice groups of purplish spots, skin sores, tingling, or a loss of sensation in the area.

• Nose and ears: Common signs include chronic sinus infections, nosebleeds, nasal ulcers, ear infections, temporary hearing loss, or a raspy voice.

• Kidneys: Look for protein or blood in the urine, high blood pressure, swelling in the face or limbs, or cloudy urine.

• Intestines: This often manifests as abdominal pain shortly after eating or the presence of blood in the stool.

• Lungs: Symptoms include coughing up blood, shortness of breath, wheezing, or bouts of pneumonia that do not respond to antibiotics.

• Joints: You might experience pain, swelling, warmth, redness, and a limited range of motion.

• Eyes: Warning signs include blurred or double vision, eye pain, redness, or general difficulty seeing.

• Nerves: This can cause muscle weakness, persistent tingling, or even localized paralysis.

Other systemic symptoms may include weight loss without trying, recurring body aches, extreme exhaustion, loss of appetite, and a general feeling of being unwell.

If you suspect you have vasculitis, it is vital to seek medical care immediately. Left untreated, the condition can cause severe and permanent damage to vital organs like the lungs and kidneys.

Confirming a diagnosis

A diagnosis is typically reached by a primary care doctor, rheumatologist, or vascular specialist after a thorough physical exam and a review of your medical history.

Based on clinical protocols from the American College of Rheumatology, a tissue biopsy is often considered the gold standard for confirming a definitive diagnosis and determining the extent of vessel damage. If organ involvement is suspected, your medical team may also utilize imaging technology like an MRI, ultrasound, or CT scan.

To confirm the condition, your doctor will likely order specific diagnostic tests, such as:

• Antineutrophil cytoplasmic antibodies (ANCA) test

• C-reactive protein (CRP) levels

• Urinalysis and electrolyte panels

• Creatinine and liver function tests

• Complete blood count (CBC)

• Antinuclear antibody (ANA) test

If organ involvement is suspected, your medical team may also utilize imaging technology like an MRI, ultrasound, or CT scan. In many cases, a tissue biopsy is necessary to provide a definitive diagnosis.

Possible causes

While the exact cause of vasculitis is not fully understood, researchers believe it stems from a combination of genetics and autoimmune triggers. It can be caused by an overreaction of the immune system to certain medications, infections, cancers, or environmental stressors. According to the National Institutes of Health, chronic viral infections, such as hepatitis B or hepatitis C, are recognized as significant triggers that can lead to the development of secondary vasculitis.

Risk factors that may increase the likelihood of developing vasculitis include:

• Autoimmune disorders like lupus, rheumatoid arthritis, or scleroderma.

• Chronic infections such as hepatitis B, hepatitis C, or parvovirus B19.

• Specific medications, including penicillamine, propylthiouracil, hydralazine, and minocycline.

• History of substance abuse, particularly cocaine or amphetamines.

• Smoking or long-term exposure to silica dust.

Additionally, a family history of certain conditions such as Behcet’s disease, Takayasu’s arteritis, Kawasaki disease, or granulomatosis with polyangiitis can increase your risk.

Types of vasculitis

Vasculitis is generally categorized based on its underlying cause and how it presents in the body:

1. Primary vasculitis

Primary vasculitis occurs when the cause is unknown. It may be localized to a single organ or tissue, such as the skin or the central nervous system.

When primary vasculitis affects multiple systems, it is called systemic vasculitis. Common examples include Kawasaki disease, Takayasu’s arteritis, temporal arteritis, Wegener’s granulomatosis (granulomatosis with polyangiitis), polyarteritis nodosa, and Behcet’s disease.

2. Secondary vasculitis

Secondary vasculitis is triggered by an outside factor or an underlying health condition. This can include infections, blood cancers like leukemia or lymphoma, and autoimmune diseases like lupus or rheumatoid arthritis. It can also be caused by drug use or exposure to specific chemicals and medications.

Treatment options

Treatment plans are customized based on the type of vasculitis and the severity of the symptoms. Your specialist will monitor your progress closely to adjust medications as needed.

For primary vasculitis, common treatments include:

• Corticosteroids: Medications like hydrocortisone, dexamethasone, mometasone, or betamethasone are used to quickly lower inflammation.

• Immunosuppressants: Drugs such as methotrexate, azathioprine, cyclophosphamide, or mycophenolate help keep the immune system from attacking the blood vessels.

• Biologics: Targeted therapies like rituximab are often used for more complex cases.

• Immunoglobulin therapy: This involves intravenous (IV) infusions of antibodies.

• Plasmapheresis: A specialized process that filters the blood to remove harmful antibodies before returning the cleaned blood to the body.

For secondary vasculitis, the primary goal is to treat the underlying condition or remove the external trigger causing the inflammation.

In severe cases where organ function is threatened, hospitalization may be required. Some patients may need surgery to repair damaged vessels or restore blood flow to critical areas. Lifestyle adjustments such as light exercise, plenty of rest, a nutrient-dense diet, and stress management are also essential components of a successful recovery