Journal List > Tuberc Respir Dis > v.69(6) > 1001572

Kwon, Kim, Song, Koo, Lee, Park, Hyun, Ko, and Kim: Levofloxacin and Torsades de Pointes

Abstract

Torsades de pointes associated with a prolonged QT interval is a life-threatening arrhythmia, which may be induced by any of the following: drugs, electrolyte imbalances, severe bradycardia and intracranial hemorrhage. Torsades de pointes is characterized by beat-to-beat variations in the QRS complexes in any ECG leads with rates of 200~250 per minute. Fluoroquinolones are widely used and well tolerated antibacterial agents. However, prolongation of the QT interval leads rarely to Torsades de pointes as a significant adverse effect. So, it should be used with caution in high-risk patients for developing Torsades de pointes. We report one case of 67-year old man with contact burns who experienced Torsades de pointes, which probably resulted from the use of levofloxacin, and no further episode occurred after its withdrawal.

Figures and Tables

Figure 1
A Photograph showed contact burns wound with skin defects in both foots.
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Figure 2
Chest X-ray showed pulmonary edema and right pleural effusion at the 8th hospital day.
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Figure 3
Torsades de pointes were initiated with prolonged QT interval.
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Figure 4
Electrocardiogram during the use of levofloxacin. QT prolongation, T wave inversion and polymorphic ventricular tachycardia are noted.
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Figure 5
Electrocardiogram after withdrawal of levofloxacin. Normal sinus rhythm was returned.
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Figure 6
Chest X-ray showed marked improved pulmonary edema and pleural effusion at the 21st hospital day.
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Figure 7
Bone marrow showed an increased number of plasma cells that were counted up to 6.2% of all nucleated cells (Wright- Giemsa stain, ×1,000).
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Figure 8
Measuring of the corrected QT interval by Bazett formula (left, normal sinus rhythm; right, atrial fibrillation).
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