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Histological Quantification to Determine Lung Fungal Burden in Experimental Aspergillosis
Published on: March 9, 2018
Adverse drug events complicate antifungal therapy for pulmonary aspergilloma
1Virginia Commonwealth University, School of Pharmacy, Medical College of Virginia Campus, Richmond, Virginia 23298-0533, USA. apakyz@vcu.edu
Abstract:
Aspergillus species are an important cause of fungal infections in immuncompromised patients and also cause a variety of saprophytic conditions such as pulmonary aspergilloma. Surgical resection alone may be warranted for the treatment of pulmonary aspergilloma; in cases where medical therapy is necessary, the triazole antifungal agents itraconazole, voriconazole, and, presumably, posaconazole are thought to provide therapeutic benefit. The high potential for drug-drug interactions with the "azole" antifungal drugs, as well as the possibility for adverse events, while perhaps uncommon, can be problematic. This case describes a 68-year-old patient who developed a pulmonary aspergilloma in the air space of the location of a previous left-upper lobectomy performed five years earlier to treat lung cancer. The patient was initiated on voriconazole, but subsequently developed agitation and hallucinations. The patient was switched to itraconazole and subsequently developed worsening of congestive heart failure. Another switch was made to posaconazole. After an adjustment of his medication regimen for potential drug-drug interactions, the patient was discharged on posaconazole for three to six months, with regular follow-up of liver transaminase monitoring.
Insights
Pulmonary aspergilloma treatment can be challenging due to antifungal drug side effects. This case highlights managing adverse events with triazole antifungals in an immunocompromised patient.
Area of Science:
- Medical Mycology
- Pulmonology
- Pharmacology
Background:
- Aspergillus species cause invasive fungal infections in immunocompromised individuals and saprophytic conditions like pulmonary aspergilloma.
- Triazole antifungal agents (itraconazole, voriconazole, posaconazole) are primary medical therapies for pulmonary aspergilloma.
- Azole antifungals carry risks of drug-drug interactions and adverse events.
Observation:
- A 68-year-old patient with a history of lung cancer surgery developed pulmonary aspergilloma.
- Initial voriconazole treatment led to agitation and hallucinations.
- Subsequent itraconazole therapy exacerbated congestive heart failure.
Findings:
- The patient was switched to posaconazole after experiencing adverse events with voriconazole and itraconazole.
- Medication regimen adjustments were made to mitigate potential drug-drug interactions.
- The patient was discharged on posaconazole for a 3-6 month treatment course.
Implications:
- This case underscores the complexities of managing pulmonary aspergilloma with triazole antifungals.
- Careful monitoring for adverse events and drug interactions is crucial.
- Individualized treatment adjustments are necessary for optimal patient outcomes.
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