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[Factors predictive of mortality in Ebstein's anomaly]
D Crépin1, M Jimenez, J B Thambo
1Service des maladies cardiovasculaires congénitales de l'adulte et de l'enfant, hôpital cardiologique du Haut-Lévêque, Pessac.
Insights
Prognostic factors for Ebstein's anomaly are not well understood. Key predictors of mortality include age, associated malformations, and indicators of cardiac dysfunction, guiding management decisions.
Area of Science:
- Cardiology
- Congenital Heart Disease
Context:
- Ebstein's anomaly, a rare congenital heart defect, has poorly understood prognostic factors, particularly in adult forms.
- Management of adult Ebstein's anomaly presents challenges due to variable tolerance and prognosis.
Purpose:
- To identify prognostic factors for mortality in Ebstein's anomaly.
- To evaluate the impact of clinical, echocardiographic, and electrophysiological findings on patient outcomes.
Summary:
- A retrospective study of 73 patients with Ebstein's anomaly identified several mortality predictors, including age, associated malformations, advanced New York Heart Association (NYHA) classes (III-IV), cardiac failure, malaise, cyanosis, elevated cardiothoracic index, and high indexed mitro-tricuspid displacement.
- Supraventricular arrhythmias and Wolff-Parkinson-White syndrome did not appear to increase mortality.
- Surgery may improve survival and functional status, suggesting its consideration in cases with declining function or poor prognostic signs.
Impact:
- Identifies key predictors of mortality in Ebstein's anomaly, aiding clinical risk stratification.
- Provides evidence supporting surgical intervention in specific patient subgroups to improve outcomes.
- Highlights the need for further research into optimal management strategies for this complex congenital heart defect.
Abstract:
Nearly 150 years after the description of Ebstein's anomaly the prognostic factors are not well known. Besides the foetal and neonatal forms which carry a poor prognosis the adult forms are often well tolerated and pose the difficult problem of management. This was a retrospective study of 73 patients with this malformation followed up between 1967 and 2002 at the University Hospital of Bordeaux. There were 14 deaths (19%) half of which (7) occurred during the first 3 months of life. The factors predictive of mortality (p<0.05) were: age, associated malformations, Classes III-IV of the New York Heart Association, cardiac failure, malaises, cyanosis, a raised cardiothoracic index, and a high mitro-tricuspid displacement indexed to body surface area. Supraventricular arrhythmia and the Wolff-Parkinson-White syndome do not seem to be associated with extramortality. Surgery, with reference to published studies, seems to improve survival, functional status and decrease the prevalence of arrhythmias. It would appear to be justified to propose surgery when functional status declines or when signs of poor prognosis are observed.
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