Subacute Invasive Aspergillosis (SAIA) is a rare and serious lung infection caused by the Aspergillus fungus. It often affects people who are immunocompromised—whether due to illness or medications like immunosuppressants—and typically sits between chronic and acute invasive forms in severity.

🧬 A Patient’s Story from Australia

“I was diagnosed with SAIA after being treated with immunosuppressants for an autoimmune condition. Over seven months, I tried three different antifungal medications—but the infection persisted. I was still producing thick mucus and felt systemically unwell, almost like I had a constant infection running through me.

Four weeks ago, I underwent a wedge resection—a type of surgery where the affected part of my lung was removed. Since then, my symptoms have completely resolved. I’m no longer coughing or feeling septic.

My infectious diseases specialist plans to keep me on posaconazole for 12 months, with monthly galactomannan blood tests to catch any recurrence early.

I’ve found there’s very little published about surgery for SAIA, so I hope my experience might help others.”


🧪 What Is SAIA?

SAIA is a slowly progressive lung infection that develops over weeks to months. Unlike acute invasive aspergillosis, which moves quickly, SAIA often occurs in people with some degree of immune suppression but who aren’t completely immunocompromised.
It can present with:

  • Persistent cough

  • Low-grade fever

  • Fatigue

  • Mucus production

  • Progressive lung damage

Standard treatment involves long-term antifungal therapy, often with drugs like:

  • Itraconazole

  • Voriconazole

  • Posaconazole

But in some cases—like this patient’s—antifungal therapy alone isn’t enough.


🛠️ When Is Surgery Used for SAIA?

Surgery, including wedge resection, may be considered when:

  • Antifungal medications are not effective

  • The infection is localized to one part of the lung

  • There is persistent or worsening lung damage

  • Patients are fit enough to undergo surgery

🔍 What Does the Evidence Say?

Although not commonly performed, surgery for aspergillosis is documented in medical literature, especially in cases of:

  • Chronic pulmonary aspergillosis (CPA)

  • Fungal nodules

  • Subacute forms like SAIA

Key studies:

  • A U.S. study of >100,000 aspergillosis cases found that only 4.8% underwent surgery, usually for treatment failure or severe complications.

  • A Chinese study of 85 CPA patients showed a relapse rate of only 7% post-surgery, with most patients improving dramatically.

  • A UK case series described 30 patients having lung resections over 15 years, showing surgery is safe and effective when performed in experienced centres.


🔄 What Happens After Surgery?

Even after a successful resection, follow-up antifungal treatment is often continued to prevent recurrence. Monitoring usually includes:

  • Regular imaging (CT scans)

  • Galactomannan blood tests (to detect fungal components)

  • Symptom tracking

This is typically guided by a multidisciplinary team involving infectious diseases, respiratory, and thoracic surgery specialists.


🎯 Key Takeaways

  • SAIA is uncommon, and when antifungals fail, surgery can be life-changing.

  • Wedge resection is a lung-sparing procedure that removes just the infected portion, offering good outcomes when the disease is localised.

  • Ongoing antifungal therapy and monitoring are critical to long-term success.

  • Your story adds to a growing but still limited body of knowledge and may help inform future treatment decisions and encourage further research.


If you are a patient or clinician navigating SAIA and struggling with antifungal treatment, this story may offer hope—and a reminder that surgical options, though rarely needed, can be effective when used judiciously.

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