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Pulmonary atresia with intact ventricular septum: management of, and outcomes for, a cohort of 210 consecutive patients

Published online by Cambridge University Press:  21 January 2005

Umesh Dyamenahalli ,
Brian W. McCrindle ,
Cathy McDonald ,
Kalyani R. Trivedi ,
Jeffrey F. Smallhorn ,
Lee N. Benson ,
John Coles ,
William G. Williams  and
Robert M. Freedom
Umesh Dyamenahalli
Affiliation:
Departments of Pediatrics, Cardiovascular Surgery, Pathology and Diagnostic Imaging, Divisions of Cardiology and Cardiovascular Surgery, The Hospital for Sick Children, University of Toronto, Toronto, Canada
Brian W. McCrindle
Affiliation:
Departments of Pediatrics, Cardiovascular Surgery, Pathology and Diagnostic Imaging, Divisions of Cardiology and Cardiovascular Surgery, The Hospital for Sick Children, University of Toronto, Toronto, Canada
Cathy McDonald
Affiliation:
Departments of Pediatrics, Cardiovascular Surgery, Pathology and Diagnostic Imaging, Divisions of Cardiology and Cardiovascular Surgery, The Hospital for Sick Children, University of Toronto, Toronto, Canada
Kalyani R. Trivedi
Affiliation:
Departments of Pediatrics, Cardiovascular Surgery, Pathology and Diagnostic Imaging, Divisions of Cardiology and Cardiovascular Surgery, The Hospital for Sick Children, University of Toronto, Toronto, Canada
Jeffrey F. Smallhorn
Affiliation:
Departments of Pediatrics, Cardiovascular Surgery, Pathology and Diagnostic Imaging, Divisions of Cardiology and Cardiovascular Surgery, The Hospital for Sick Children, University of Toronto, Toronto, Canada
Lee N. Benson
Affiliation:
Departments of Pediatrics, Cardiovascular Surgery, Pathology and Diagnostic Imaging, Divisions of Cardiology and Cardiovascular Surgery, The Hospital for Sick Children, University of Toronto, Toronto, Canada
John Coles
Affiliation:
Departments of Pediatrics, Cardiovascular Surgery, Pathology and Diagnostic Imaging, Divisions of Cardiology and Cardiovascular Surgery, The Hospital for Sick Children, University of Toronto, Toronto, Canada
William G. Williams
Affiliation:
Departments of Pediatrics, Cardiovascular Surgery, Pathology and Diagnostic Imaging, Divisions of Cardiology and Cardiovascular Surgery, The Hospital for Sick Children, University of Toronto, Toronto, Canada
Robert M. Freedom
Affiliation:
Departments of Pediatrics, Cardiovascular Surgery, Pathology and Diagnostic Imaging, Divisions of Cardiology and Cardiovascular Surgery, The Hospital for Sick Children, University of Toronto, Toronto, Canada
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Abstract

Objectives: We sought to determine trends, and outcomes, for a cohort of patients with pulmonary atresia with intact ventricular septum born between 1965 and 1998. Background: Pulmonary atresia with intact ventricular septum is a complex lesion that remains a therapeutic challenge, particularly regarding the suitability for biventricular repair. Methods: We identified 210 consecutive patients, and reviewed their medical records, initial angiograms, and echocardiograms, along with the relevant surgical and pathology reports. Results: The mean initial Z-score for the diameter of the tricuspid valve was −0.99 ± 1.95, with Ebstein's malformation in 8%. A right ventricular dependent coronary arterial circulation was found in 23%. The proportion of patients who received treatment increased over time, although placement of an arterial shunt was the predominant initial procedure throughout the experience. At the last follow-up, 107 patients had not reached the planned final stage of their repair, and 79% of these had died. Of the 103 reaching the final stage of planned repair, 58 had undergone attempted biventricular repair, with 34% dying; 14 had undergone attempted one and a half ventricular repair, with 7% dying, and 31 had undergone attempted functionally univentricular repair, with 10% dying. Overall, survival was 57% at the age of 1 year, 48% at 5 years, and 43% at 10 years. Survival improved over time, with survival of 75% at 1 year, and 67% at 5 years, for patients born between 1992 and 1998. An earlier date of birth, the presence of Ebstein's malformation, and prematurity were all significant independent factors associated with decreased survival. A greater severity of coronary arterial abnormalities was significantly associated with a greater likelihood of left ventricular dysfunction during follow-up. Conclusions: The outcomes for patients born with pulmonary atresia with intact ventricular septum have improved over time, albeit that careful initial management, and better selection, is still indicated for those planned to undergo biventricular repair.

Keywords

Hypoplastic right ventriclenatural historycongenital heart disease
Type
Original Article
Information
Cardiology in the Young , Volume 14 , Issue 3 , June 2004 , pp. 299 - 308
Copyright
© 2004 Cambridge University Press

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