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Published on: February 26, 2013
Comparative risk of arrhythmias associated with systemic antifungal agents: a disproportionality analysis of the
Xiaohu Yang1,2, Hao Li1,2, Kai Liu1,2
1Department of Pharmacy, The First Affiliated Hospital of Bengbu Medical University, Bengbu, China.
Objective:
The real-world cardiac safety profile of systemic antifungal agents has not been thoroughly investigated. Based on the US Food and Drug Administration Adverse Event Reporting System FDA Adverse Event Reporting System database, this study analyzed the arrhythmogenic toxicity of nine systemic antifungal drugs, aiming to provide references for clinical safe medication practices.
Research Design And Methods:
Adverse events were described and classified using arrhythmogenic toxicity-related Standardized MedDRA Queries (SMQs) from the MedDRA. To identify the association between systemic antifungal agents and arrhythmogenic toxicity, this study used four algorithms: Reporting odds ratio (ROR), Proportional reporting ratio (PRR), Multi-item gamma-poisson shrinker (MGPS), and Bayesian confidence propagation Neural Network (BCPNN).
Results:
A total of 42,393 reports were included. The ranking of the number of positive signals across four types of SMQs was as follows: Itraconazole (4), Fluconazole (3), Posaconazole (3), Voriconazole (2), Caspofungin (1), Amphotericin B (1), Flucytosine (0), Isavuconazole (0), Micafungin (0). Itraconazole demonstrated the strongest ROR value of 2.95 in "Cardiac arrhythmia terms, nonspecific". The highest ROR values in "Bradyarrhythmias" were 5.53 for both posaconazole and fluconazole. Fluconazole exhibited higher ROR values than other drugs in both "Tachyarrhythmias" and "Torsade de pointes/QT prolongation", with values of 3.53 and 14.55, respectively.
Conclusion:
This study employed four disproportionality analysis methods to analyze the association between systemic antifungal agents and arrhythmogenic toxicity signals. Itraconazole, fluconazole, and posaconazole demonstrated stronger arrhythmogenic risks, whereas micafungin, flucytosine, and isavuconazole showed negative signals across all four SMQs. In clinical practice, individual patient risk should be comprehensively assessed to guide personalized drug selection.
Insights
Systemic antifungal drugs like itraconazole, fluconazole, and posaconazole show increased cardiac arrhythmia risks. Safer alternatives include micafungin, flucytosine, and isavuconazole, requiring personalized risk assessment for safe medication practices.
Area of Science:
- Pharmacology
- Cardiology
- Drug Safety
Background:
- The cardiac safety of systemic antifungal agents requires further investigation.
- Real-world data on arrhythmogenic toxicity is limited.
- Understanding drug-induced cardiac events is crucial for patient safety.
Purpose of the Study:
- To evaluate the cardiac safety profile of nine systemic antifungal drugs.
- To identify potential arrhythmogenic risks associated with these agents.
- To provide evidence-based guidance for safe clinical use.
Main Methods:
- Utilized the US Food and Drug Administration Adverse Event Reporting System (FAERS) database.
- Analyzed adverse event reports using four disproportionality algorithms: ROR, PRR, MGPS, and BCPNN.
- Classified events using Standardized MedDRA Queries (SMQs) for arrhythmogenic toxicity.
Main Results:
- Itraconazole, fluconazole, and posaconazole were associated with significant arrhythmogenic signals.
- Fluconazole showed the highest risk for Torsade de pointes/QT prolongation (ROR 14.55).
- Micafungin, flucytosine, and isavuconazole exhibited negative or no significant arrhythmogenic signals.
Conclusions:
- Itraconazole, fluconazole, and posaconazole present a higher risk of cardiac arrhythmias.
- Micafungin, flucytosine, and isavuconazole appear safer regarding arrhythmogenic toxicity.
- Personalized risk-benefit assessment is essential for selecting systemic antifungal therapy.
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