Published online April 3, 2006
PEDIATRICS Vol. 117 No. 5 May 2006, pp. e924-e927 (doi:10.1542/peds.2005-1012)
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Right arrow Genetics & Dysmorphology

Cri du Chat Syndrome and Congenital Heart Disease: A Review of Previously Reported Cases and Presentation of an Additional 21 Cases From the Pediatric Cardiac Care Consortium

Christine Hills, MDa, James H. Moller, MDb, Marsha Finkelstein, MSc, Jamie Lohr, MDb and Lisa Schimmenti, MDd

a Departments of Pediatrics
b Pediatric Cardiology
d Pediatric Genetics and Metabolism, University of Minnesota, Minneapolis, Minnesota
c Center for Care Innovation and Research, Children's Hospitals and Clinics of Minnesota, Minneapolis, Minnesota

OBJECTIVES. To analyze the cases submitted to the Pediatric Cardiac Care Consortium (PCCC) database from 1982 to 2002 to determine the frequency and distribution of congenital heart disease (CHD) found in this population, to review the literature for previously published accounts of CHD in this population, and to review current genotype-phenotype associations for cri du chat (CDC) syndrome with CHD.

METHODS. We performed a retrospective review of the 98422 CHD cases submitted to the PCCC between 1982 and 2002, to find patients who had a noncardiac diagnosis of CDC syndrome.

RESULTS. A total of 21 patients (15 female and 6 male patients) were identified. Although some patients had multiple cardiac anomalies, they were categorized according to primary diagnoses on the basis of the most hemodynamically significant component. The patient groups were ventricular septal defect (n = 6), patent ductus arteriosus (n = 6), tetralogy of Fallot (n = 5), pulmonary valve atresia with ventricular septal defect (n = 2), pulmonary valve stenosis (n = 1), and double-outlet right ventricle (n = 1). Eighteen of the 21 patients underwent surgical repair of their defects. There was 1 late operative death. To determine whether the observed frequency of these cardiac defects among patients with CDC syndrome was comparable to that of the general population of patients with CHD, data for all cases submitted to the PCCC from 1982 to 2002 were used. Use of these numbers to determine expected frequencies for these defects showed significantly greater proportions of patients with these specific lesions among the patients with CDC syndrome.

CONCLUSIONS. Currently there is no clear understanding of the genomic cause of the prevalence of these defects in the population with CDC syndrome, although CHD has been noted among patients with other deletion syndromes.

Key Words: congenital heart disease • genotype-phenotype correlation • genetics

Abbreviations: CDC—cri du chat • CHD—congenital heart disease • PCCC—Pediatric Cardiac Care Consortium • VSD—ventricular septal defect • PDA—patent ductus arteriosus • TOF—tetralogy of Fallot • ASD—atrial septal defect

Accepted Dec 13, 2005.