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Invasive Pulmonary Aspergillosis.

Marie-Pierre Ledoux1, Blandine Guffroy1, Yasmine Nivoix2

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Diagnosing and treating invasive pulmonary aspergillosis (IPA) is challenging. This review covers risk factors, diagnostic methods like CT scans and biomarkers, and new antifungal treatments for IPA.

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Area of Science:

  • Medical Mycology
  • Infectious Diseases
  • Pulmonology

Background:

  • Invasive pulmonary aspergillosis (IPA) presents diagnostic and therapeutic challenges.
  • High-risk groups include immunocompromised patients (neutropenia, transplantation, immunodeficiency, cancer therapy) and the critically ill.
  • Clinical signs are often nonspecific, necessitating advanced diagnostic approaches.

Purpose of the Study:

  • To review current diagnostic strategies for IPA, including imaging and laboratory methods.
  • To discuss the evolving landscape of antifungal therapies for IPA.
  • To provide an overview of emerging diagnostic tools and treatments for IPA.

Main Methods:

  • Review of computed tomography (CT) scan findings for angioinvasive and airway invasive aspergillosis.
  • Discussion of diagnostic confirmation using microscopy, culture, histopathology, and biomarker detection (e.g., Aspergillus galactomannan, DNA PCR).
  • Evaluation of new antifungal agents (azoles, amphotericin B formulations, echinocandins) and their clinical trial outcomes.

Main Results:

  • CT scans aid early detection, though findings are not fully specific.
  • Biomarker detection (galactomannan, DNA PCR) and point-of-care tests improve diagnostic yield.
  • Recent decades have seen development of new azoles, lipid formulations of amphotericin B, and echinocandins for IPA treatment.

Conclusions:

  • Early diagnosis of IPA relies on a combination of clinical suspicion, imaging, and mycological confirmation.
  • Newer antifungal agents offer improved therapeutic options, with ongoing development of novel treatments.
  • International guidelines inform the use of current and emerging antifungal therapies for IPA.