Factors associated with outcomes of persistent truncus arteriosus
Joyce M. Williams, MSca,b,
Maaike de Leeuwa,b,
Michael D. Black, MDa,b,
Robert M. Freedom, MD, FACCa,b,
William G. Williams, MDa,b and
Brian W. McCrindle, MD, MPH, FACCa,b
a Division of Cardiology, University of Toronto, The Hospital for Sick Children, Toronto, Ontario, Canada
b Division of Cardiovascular Surgery, University of Toronto, The Hospital for Sick Children, Toronto, Ontario, Canada
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Figure 1 Management and outcomes. PTA = persistent truncus arteriosus.
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Figure 2 Cumulative hospital mortality with consecutive surgical repairs of persistent truncus arteriosus. PTA = persistent truncus arteriosus.
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Figure 3 Kaplan-Meier estimates of late death after hospital discharge in survivors of repair of persistent truncus arteriosus. Vertical lines represent 95% confidence limits. PTA = persistent truncus arteriosus.
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Figure 4 Kaplan-Meier estimates of freedom from first right ventricle to pulmonary artery conduit replacement after repair of persistent truncus arteriosus. Data relates to hospital survivors after repair of persistent truncus arteriosus; vertical lines represent 95% confidence limits. PA = pulmonary artery; PTA = persistent truncus arteriosus; RV = right ventricle.
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Figure 5 Kaplan-Meier estimates of freedom from initial conduit replacement related to the type of conduit. Data relates to hospital survivors after repair of persistent truncus arteriosus. Log rank p = 0.002; Wilcoxon test p = 0.008. PA = pulmonary artery; PTA = persistent truncus arteriosus; RV = right ventricle.
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Figure 6 Kaplan-Meier estimates of freedom from initial conduit replacement related to the influence of transcatheter balloon dilation with or without endovascular stenting of conduit or conduit valve stenosis. Data relates to hospital survivors following repair of persistent truncus arteriosus. Dashed line represents patients who did not have any intervening interventional cardiac catheterization to address conduit obstruction (No cath); solid line represents patients who had intervening interventional catheterization (Cath); and broken line represents the same patients as the solid line but under the assumption that if interventional catheterization were not performed they would have had conduit replacement at that date (If no cath). PA = pulmonary artery; PTA = persistent truncus arteriosus; RV = right ventricle.
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