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Torsade de pointes after inhaled pentamidine.
M B Engrav1, G Coodley, A R Magnusson
1Oregon Health Sciences University, Portland.
Annals of Emergency Medicine
|November 1, 1992
Summary
A case report highlights that inhaled pentamidine can trigger torsade de pointes, a dangerous heart rhythm, in HIV-positive patients. This condition was resistant to standard treatments, emphasizing the need for physician awareness.
Area of Science:
- Cardiology
- Infectious Diseases
Background:
- Human Immunodeficiency Virus (HIV) infection can predispose individuals to cardiac complications.
- Certain medications used in HIV management may have cardiotoxic effects.
Observation:
- A 40-year-old HIV-positive male presented with recurrent episodes of torsade de pointes.
- The patient had recently received inhaled pentamidine prior to symptom onset.
Findings:
- The episodes of torsade de pointes were refractory to conventional therapeutic interventions.
- Comprehensive evaluation including laboratory work, echocardiography, and computed tomography scan was performed.
- The case underscores a potential association between pentamidine administration and the development of torsade de pointes.
Implications:
- Physicians should maintain a high index of suspicion for pentamidine-induced torsade de pointes in at-risk populations.
- Awareness of this adverse drug reaction is crucial for prompt diagnosis and management.
- Further research may be warranted to elucidate the mechanism of pentamidine cardiotoxicity.