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[Valvular heart disease associated with benfluorex].
Josefa Rafel Ribera1, Roser Casañas Muñoz, Nuria Anguera Ferrando
1Servicios de Cardiología, Hospital del Sagrado Corazón, Barcelona, Spain. jrafelr@airtel.net
Revista Espanola De Cardiologia
|February 28, 2003
Summary
This study details the first reported case of valvular heart disease caused by the anorectic drug benfluorex. The findings suggest serotonin plays a key role in drug-induced heart valve damage.
Area of Science:
- Cardiology
- Pharmacology
- Toxicology
Background:
- Valvular heart disease (VHD) can arise from various causes, including certain medications.
- Appetite suppressants like fenfluramine and dexfenfluramine have been linked to VHD.
- Benfluorex is an anorectic agent with a chemical structure similar to fenfluramine.
Observation:
- A 50-year-old woman developed severe mitral, aortic, and tricuspid valve fibrosis and regurgitation.
- The patient had a history of intermittent benfluorex use for one year.
- Clinical, echocardiographic, and histopathological findings were consistent with known drug-induced VHD.
Findings:
- Benfluorex is identified as a potential cause of valvular heart disease.
- Histopathological lesions in benfluorex-induced VHD resemble those seen with fenfluramine and dexfenfluramine.
- The observed valvular damage shares similarities with ergot alkaloid and carcinoid heart disease.
Implications:
- Serotonin is implicated as a central pathophysiological mechanism in drug-induced VHD.
- This case expands the understanding of anorectic agent-related cardiovascular toxicity.
- Further research is warranted to elucidate the role of serotonin in VHD development.