Characteristics of structural heart defects in trisomy 9 and their relationship to those in trisomy 13, 18, and 21.
The hearts from two live-born full-term infants with nonmosaic trisomy 9 (one complete trisomy 9, one partial trisomy 9) were studied after death. Both demonstrated conal and valvular anomalies associated with ventricular septal defects. These specific malformations are discussed in relation to published cases of trisomy 9 and the cardiac defects of other autosomal trisomies (13, 18, and 21).
Department of Pathology, Brigham and Women's Hospital, Boston, MA 02115.
D J
DJ
Roberts
M M
MM
Sandstrom
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S
Van Praagh
D002882:Chromosomes, Human, Pair 13; D002887:Chromosomes, Human, Pair 18; D002899:Chromosomes, Human, Pair 9; D004314:Down Syndrome; D005260:Female; D006330:Heart Defects, Congenital / Q000235:genetics / Q000473:pathology*; D006801:Humans; D007231:Infant, Newborn; D008297:Male; D009206:Myocardium / Q000473:pathology; D014314:Trisomy / Q000473:pathology*