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[Ebstein's anomaly associated with left ventricular dysfunction: a case report]

T Maruo1, S Kano, K Ichino

  • 1Department of Cardiology, JR Tokyo General Hospital.

Journal of Cardiology
|July 17, 1998
PubMed
Summary
This summary is machine-generated.

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This case study highlights a 66-year-old man with Ebstein's anomaly, presenting with left ventricular dysfunction and heart failure symptoms. Diffuse fibrosis is suggested as a potential cause for his depressed systolic function.

Area of Science:

  • Cardiology
  • Cardiovascular Medicine
  • Congenital Heart Disease

Background:

  • Ebstein's anomaly is a rare congenital heart condition affecting the tricuspid valve.
  • Patients may develop progressive heart failure and arrhythmias over time.
  • Left ventricular dysfunction in Ebstein's anomaly is less common but can significantly impact prognosis.

Observation:

  • A 66-year-old male with known Ebstein's anomaly presented with symptoms of heart failure, including lower extremity edema and orthopnea.
  • Physical examination revealed signs of right-sided heart strain and atrial fibrillation.
  • Echocardiography demonstrated significant tricuspid valve abnormalities, atrial and ventricular dilation, and paradoxical septal motion.

Findings:

  • Left ventriculography revealed diffuse hypokinesis with a reduced ejection fraction of 49%.

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  • Transesophageal echocardiography showed a hypoplastic tricuspid valve with moderate regurgitation.
  • Coronary arteries were normal, ruling out ischemic heart disease.

    • Implications:

    • Diffuse myocardial fibrosis is proposed as a potential mechanism for the observed left ventricular systolic dysfunction in this patient.
    • This case underscores the importance of considering ventricular dysfunction in the long-term management of Ebstein's anomaly.
    • Further research into the pathophysiology of ventricular dysfunction in Ebstein's anomaly is warranted.