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Digitalis toxicity: mechanisms, diagnosis, and management
1Cardiovascular Division, Brigham and Women's Hospital, Boston, MA 02115.
Journal of Cardiac Surgery
|December 1, 1987
Summary
Digoxin toxicity poses serious cardiac risks. This review details digoxin toxicity mechanisms, manifestations, and management, including new antibody treatments for severe cases.
Area of Science:
- Pharmacology
- Cardiology
- Toxicology
Background:
- Digitalis glycosides, like digoxin, have a narrow therapeutic index.
- Digoxin toxicity can lead to life-threatening cardiac arrhythmias.
- While decreasing, digoxin toxicity remains a significant clinical concern.
Purpose of the Study:
- To review the mechanisms, clinical manifestations, and management of digoxin toxicity.
- To emphasize serum digoxin level measurement and interpretation.
- To describe the role of digoxin-specific antibody fragments in treating severe toxicity.
Main Methods:
- Literature review focusing on digoxin toxicity.
- Analysis of clinical presentations and diagnostic methods.
- Evaluation of treatment strategies, including digoxin-specific antibodies.
Main Results:
- Digoxin toxicity presents with varied cardiac dysrhythmias.
- Accurate serum digoxin level monitoring is crucial.
- Digoxin-specific antibody fragments are effective for life-threatening toxicity.
Conclusions:
- Understanding digoxin pharmacokinetics and patient monitoring is key to preventing toxicity.
- Prompt recognition and appropriate management, including antibody therapy, are vital for patient outcomes.
- Continued vigilance is necessary to minimize the prevalence of digitalis toxicity.