The role of itraconazole in recalcitrant fungal sinusitis

Kristin Seiberling1, Peter-John Wormald

  • 1Department of Surgery-Otolaryngology, University of Adelaide, South Australia, Australia.

Abstract

Insights

Oral itraconazole shows promise for treating allergic fungal sinusitis (AFS) in patients refractory to other treatments. This antifungal medication may reduce symptoms, decrease oral steroid dependence, and prolong remission periods.

Area of Science:

  • Otolaryngology
  • Mycology
  • Pharmacology

Background:

  • Allergic fungal sinusitis (AFS) shares similarities with allergic bronchopulmonary aspergillosis (ABPA).
  • Oral itraconazole is an established antifungal treatment for ABPA.
  • This study investigates itraconazole's efficacy in refractory AFS cases.

Purpose of the Study:

  • To evaluate the therapeutic response of oral itraconazole in patients with chronic fungal sinusitis.
  • To assess itraconazole's impact on symptom recurrence and oral steroid use in AFS patients.

Main Methods:

  • Retrospective chart review of 23 patients with AFS treated with oral itraconazole.
  • Data collected included demographics, comorbidities, allergies, fungal cultures, surgical history, and steroid use.
  • Patients received a 6-month course of itraconazole (100 mg b.i.d.) for recurrent disease post-surgery.

Main Results:

  • Nineteen of 23 patients responded to itraconazole, showing reduced symptoms and fungal debris.
  • Three patients discontinued treatment due to elevated liver enzymes.
  • Of 16 patients with decreased steroid use, 11 achieved disease remission at a mean follow-up of 15.7 months.

Conclusions:

  • Oral itraconazole may benefit patients with recalcitrant fungal sinusitis unresponsive to maximal therapy.
  • Itraconazole can potentially extend time to recurrence and reduce or eliminate the need for oral steroids.
  • No permanent complications were observed from itraconazole treatment.

Related Concept Videos

Cryptococcal Meningitis01:27

Cryptococcal Meningitis

Cryptococcal meningitis is a life-threatening opportunistic infection predominantly associated with HIV/AIDS, accounting for over 100,000 deaths annually worldwide. However, it also affects individuals with other forms of immunosuppression, including those undergoing immunosuppressive therapy, organ transplant recipients, patients with innate immunodeficiencies, and individuals with hematological disorders. The infection is caused mainly by Cryptococcus neoformans and Cryptococcus gattii,...
Antifungal Agents01:15

Antifungal Agents

Amphotericin B is a broad-spectrum antifungal agent that exploits structural differences between fungal and mammalian cell membranes. Its amphipathic structure—featuring a hydrophobic polyene-lactone ring and a hydrophilic region containing mycosamine and carboxylic acid groups—enables selective binding to ergosterol, a sterol predominantly found in fungal plasma membranes. This selective interaction underlies the drug’s antifungal activity, although weak binding to cholesterol contributes to...
Antiasthma Drugs: Inhaled Corticosteroids and Glucocorticoids01:25

Antiasthma Drugs: Inhaled Corticosteroids and Glucocorticoids

Inhaled corticosteroids (ICS) are anti-inflammatory drugs used primarily in treating persistent asthma and providing long-term maintenance. They target the bronchial mucosa, the lining of the airways, to control inflammation, a critical factor in asthma progression and exacerbation.
ICS work through a multifaceted mechanism of action. They suppress the inflammatory response caused by the proliferation of TH cells. They also reduce the transcription of the IL-2 gene, which is involved in the...
Drugs for Treatment of Crohn's Disease in IBD Using Biologic Agents: Anti-TNF01:24

Drugs for Treatment of Crohn's Disease in IBD Using Biologic Agents: Anti-TNF

Tumor Necrosis Factor (TNF), a proinflammatory cytokine, contributes significantly to the inflammation seen in Crohn's disease. It exists as soluble TNF and membrane-bound TNF, with actions mediated through TNF receptors (TNFR). TNFR activation leads to the release of proinflammatory cytokines, T-cell activation, collagen production, and leukocyte migration, all contributing to inflammation in Crohn's disease. Anti-TNF monoclonal antibodies, namely infliximab (Remicade), adalimumab (Humira),...
Drugs for Treatment of Crohn's Disease in IBD Using Immunomodulatory Agents01:29

Drugs for Treatment of Crohn's Disease in IBD Using Immunomodulatory Agents

Crohn's disease is an inflammatory bowel disorder marked by chronic inflammation of the GI tract. Various treatment strategies for Crohn's disease are employed, such as immunomodulatory agents, glucocorticoids, and biologics or anti-TNF therapy. Azathioprine (Imuran), a commonly used immunomodulatory drug for Crohn's disease, is converted in the body to mercaptopurine, which inhibits purine biosynthesis and cell proliferation. Both are utilized in severe cases of Inflammatory Bowel Disease...
Drugs for Treatment of Crohn's Disease in IBD Using Glucocorticoids01:21

Drugs for Treatment of Crohn's Disease in IBD Using Glucocorticoids

Glucocorticoids, a class of anti-inflammatory drugs, are pivotal in treating moderate to severe Crohn's disease by inducing remission. They exhibit their anti-inflammatory action by inhibiting the production of inflammatory cytokines such as tumor necrosis factor (TNF)-α, interleukin (IL)-1, and chemokines like IL-8. In addition, they reduce the expression of inflammatory cell adhesion molecules and inhibit gene transcription of nitric oxide synthase, phospholipase A2, cyclooxygenase-2 (COX-2),...