Which are the symptoms of Churg Strauss Syndrome?

Churg-Strauss Syndrome, now clinically known as Eosinophilic Granulomatosis with Polyangiitis (EGPA), is a rare systemic vasculitis primarily characterized by severe asthma, high levels of eosinophils in the blood, and inflammation of small-to-medium blood vessels. Symptoms progress through three distinct phases: an allergic/prodromal phase, an eosinophilic phase, and a final vasculitic phase that can affect multiple organ systems including the lungs, skin, heart, and nerves.

What are the primary symptoms of Churg-Strauss Syndrome?

The clinical presentation of Churg-Strauss Syndrome is highly variable, but it typically follows a predictable progression. Early signs often involve respiratory issues, while later stages reflect systemic organ damage. Common symptoms include:

• Asthma-like symptoms: Often the first sign, characterized by adult-onset asthma that becomes increasingly difficult to control.


• Sinus and nasal issues: Chronic sinusitis, nasal polyps, and allergic rhinitis are present in over 70% of patients.


• Systemic involvement: Unexplained weight loss, fatigue, fever, and night sweats.


• Neurological symptoms: Peripheral neuropathy, such as numbness, tingling, or "foot drop," caused by inflammation of the nerves (mononeuritis multiplex).


• Dermatological manifestations: Skin rashes, nodules, or purpura (purple spots) resulting from vessel inflammation.

How does Churg-Strauss Syndrome progress over time?

Churg-Strauss Syndrome generally evolves through three phases. The first phase is characterized by respiratory allergies and asthma. The second phase involves eosinophilia, where eosinophil counts in the blood rise significantly, leading to tissue damage in organs like the lungs and gastrointestinal tract. The third phase is the vasculitic phase, where inflammation of blood vessels can restrict blood flow to vital organs, potentially causing heart failure, kidney involvement, or severe nerve damage. Because Churg-Strauss Syndrome is a systemic disease, symptoms vary greatly; some patients experience mild skin involvement, while others face life-threatening cardiac or neurological complications.

When should I seek emergency care for Churg-Strauss Syndrome?

Immediate medical attention is necessary if you experience symptoms indicating organ damage, such as chest pain, shortness of breath, sudden weakness or loss of sensation in limbs, or blood in the stool. These may signal acute vasculitis requiring urgent intervention to prevent permanent tissue damage.

Next steps

• Consult with a rheumatologist or a vasculitis specialist to manage Churg-Strauss Syndrome.


• Join the DiseaseMaps.org community to connect with 126 others living with Churg-Strauss Syndrome.


• Maintain a symptom diary to track asthma control and neurological changes for your next clinical visit.

Medical disclaimer: This content is for informational purposes only and does not constitute professional medical advice, diagnosis, or treatment; always seek the advice of your physician regarding a medical condition.

References

• NIH Genetic and Rare Diseases Information Center (GARD) - Eosinophilic granulomatosis with polyangiitis.


• Orphanet - Eosinophilic granulomatosis with polyangiitis (EGPA).


• Vasculitis Foundation - Patient resources for Churg-Strauss Syndrome.


• OMIM (Online Mendelian Inheritance in Man) - Clinical summaries on EGPA.