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Reversible Left Ventricular Systolic Dysfunction Secondary to Pazopanib
Kushani Gajjar1, Kathir Balakumaran2, Agnes S Kim2
1Internal Medicine, University of Connecticut Health Center, Farmington, USA.
Pazopanib treatment for sarcoma can cause severe heart dysfunction. Stopping the drug led to recovery of the patient's left ventricular ejection fraction, indicating a reversible effect.
Area of Science:
- Cardiology
- Oncology
- Pharmacology
Background:
- Pazopanib is a tyrosine kinase inhibitor approved for advanced renal cell carcinoma and advanced soft tissue sarcoma.
- Cardiotoxicity is a known potential adverse effect of tyrosine kinase inhibitors.
Observation:
- A case report details a patient with spindle cell sarcoma who experienced severe left ventricular systolic dysfunction.
- The cardiac dysfunction emerged after initiating pazopanib therapy.
Findings:
- The patient's left ventricular ejection fraction significantly improved after discontinuing pazopanib.
- This suggests a direct, reversible relationship between pazopanib and the observed cardiac dysfunction.
Implications:
- This case highlights the importance of monitoring cardiac function in patients receiving pazopanib.
- Further research into the mechanisms of pazopanib-induced cardiotoxicity and preventative strategies is warranted.
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