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Outcome following, and impact of, prenatal identification of the candidates for the Norwood procedure

Published online by Cambridge University Press:  20 January 2005

Robin R Fountain-Dommer ,
Scott M Bradley ,
Andrew M Atz ,
Martha R Stroud ,
Geoffrey A Forbus  and
Girish S Shirali
Robin R Fountain-Dommer
Affiliation:
Department of Pediatrics (Cardiology), Medical University of South Carolina, Charleston, SC, USA
Scott M Bradley
Affiliation:
Department of Surgery (Cardiothoracic Surgery), Medical University of South Carolina, Charleston, SC, USA
Andrew M Atz
Affiliation:
Department of Pediatrics (Cardiology), Medical University of South Carolina, Charleston, SC, USA
Martha R Stroud
Affiliation:
Department of Surgery (Cardiothoracic Surgery), Medical University of South Carolina, Charleston, SC, USA
Geoffrey A Forbus
Affiliation:
Department of Pediatrics (Cardiology), Medical University of South Carolina, Charleston, SC, USA
Girish S Shirali
Affiliation:
Department of Pediatrics (Cardiology), Medical University of South Carolina, Charleston, SC, USA
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Abstract

Objectives: Our study evaluates hospital survival following prenatal identification of candidates for the Norwood procedure, and the impact of prenatal diagnosis on survival, preoperative stability, and postoperative morbidity. Methods: We reviewed records of all patients who were identified prenatally as candidates for the Norwood procedure, and compared them to all postnatally diagnosed patients who underwent the Norwood procedure between August 1995 and May 2002. Results: Of the 98 patients studied, 45 (46%) were diagnosed prenatally. Of these, 35 underwent the Norwood procedure, 29 (83%) of who survived. Thus, 29 of 45 (64%) patients survived from prenatal diagnosis to discharge following the Norwood procedure. Of the 53 postnatally diagnosed patients who underwent the Norwood procedure, 42 (79%) survived. Prenatal diagnosis was not associated with improvement in survival, preoperative stability, or postoperative morbidity. By multivariate analysis, ascending aortic diameter equal to or greater than 2 mm (p = 0.01), and gestational age 36 weeks or greater (p = 0.01) independently predicted survival. Based on this, patients were stratified into groups at low risk, consisting of 69 patients, and at high risk, consisting of 19 patients. Prenatal diagnosis was unassociated with improved survival in either group. Results were unchanged when the analysis was restricted to patients with hypoplasia of the left heart. Conclusion: From the time of prenatal diagnosis, 64% of patients survived to discharge following the Norwood procedure. Prenatal diagnosis did not affect preoperative stability, survival or postoperative morbidity. This remained the case after stratifying patients by risk, or restricting analysis to patients with hypoplasia of the left heart. Ascending aortic diameter and gestational age independently predicted survival.

Keywords

Norwood procedureprenatal diagnosisechocardiography
Type
Original Article
Information
Cardiology in the Young , Volume 14 , Issue 1 , February 2004 , pp. 32 - 38
Copyright
© 2004 Cambridge University Press

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