Torsades de pointes induced by antibiotics
1Department of Internal Medicine "D", Tel-Aviv Sourasky Medical Center, 6 Weizman Street, Tel Aviv 64239, Israel.
European Journal of Internal Medicine
|June 10, 2006
Summary
Antibiotic-induced torsades de pointes (TdP), a dangerous heart arrhythmia, may be predictable. Identifying risk factors like female gender and heart disease before prescribing antibiotics can improve patient safety.
Area of Science:
- Pharmacology
- Cardiology
- Clinical Medicine
Background:
- Certain antibiotics are linked to torsades de pointes (TdP), a potentially fatal heart arrhythmia.
- TdP is often considered unpredictable, posing a significant clinical challenge.
Purpose of the Study:
- To investigate the prevalence of risk factors for TdP before initiating antibiotic treatment.
- To raise awareness of TdP risk factors associated with antibiotic therapy.
Main Methods:
- Conducted a literature search for published reports on antibiotic-induced TdP.
- Requested unpublished TdP reports from pharmaceutical companies.
Main Results:
- Analyzed 61 reports involving 78 patients with antibiotic-induced TdP.
- Female gender was the most common risk factor (66.7%).
- Advanced heart disease (59%) and concurrent use of QT-prolonging agents or metabolism inhibitors (48.7%) were also frequent; 74.3% had multiple risk factors.
Conclusions:
- TdP induced by antibiotics may be predictable through basic patient assessment and electrocardiogram.
- Highlighting pre-antibiotic risk factors is crucial for preventing TdP.
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