Related Experiment Videos
Chloroquine cardiomyopathy with conduction disorders
J P Baguet1, F Tremel, M Fabre
1Department of Cardiology and Internal Medicine, University Hospital, Grenoble, France.
Heart (British Cardiac Society)
|January 29, 1999
Insights
Long-term chloroquine use for systemic lupus erythematosus can cause heart failure and hypertrophic cardiomyopathy. Stopping the medication improved the patient's heart condition.
Area of Science:
- Cardiology
- Rheumatology
- Toxicology
Background:
- Systemic lupus erythematosus (SLE) is a chronic autoimmune disease.
- Chloroquine is a common treatment for SLE, but can have adverse effects.
- Cardiac complications of long-term chloroquine use are a significant concern.
Observation:
- A 58-year-old woman with SLE on long-term chloroquine therapy presented with cardiac conduction abnormalities.
- The patient exhibited symptoms of heart failure and was diagnosed with hypertrophic cardiomyopathy.
- Histological examination confirmed the cardiomyopathy was linked to chloroquine toxicity.
Findings:
- Chloroquine toxicity was identified as the cause of hypertrophic cardiomyopathy and heart failure.
- Discontinuation of chloroquine treatment led to improvement in the patient's heart failure symptoms.
Implications:
- This case highlights the potential for chloroquine-induced cardiotoxicity in SLE patients.
- Regular cardiac monitoring may be necessary for patients on long-term chloroquine therapy.
- Understanding these risks can guide safer treatment strategies for SLE.
Abstract:
A 58 year old woman on long term treatment with chloroquine for systemic lupus erythematosus presented with cardiac conduction disorders and heart failure with hypertrophic cardiomyopathy, which was confirmed by histology to be related to chloroquine toxicity. The heart failure improved on stopping chloroquine treatment.