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Am J Med Genet. 1999 Nov 19;87(2):175-9.

Familial patent ductus arteriosus and bicuspid aortic valve with hand anomalies: a novel heart-hand syndrome.

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Department of Pediatrics, Mount Sinai School of Medicine, New York, New York 10029, USA.


The association between cardiac and limb defects, particularly those affecting the hand, has been well documented by the delineation of several heart-hand syndromes. Based on observations with a three-generation family with seven affected individuals, we describe a novel heart-hand syndrome comprising patent ductus arteriosus, bicuspid aortic valve, 5th metacarpal hypoplasia, and brachydactyly. The inheritance pattern was consistent with autosomal dominance, although X-linked dominance could not be excluded. Penetrance appeared to be complete, but there was variability of the cardiac and hand phenotypes. Because this new syndrome closely resembled Char syndrome (patent ductus arteriosus, 5th finger middle phalangeal hypoplasia, and minor facial anomalies), multipoint linkage analysis was performed using polymorphic DNA markers spanning the recently identified Char syndrome critical region at chromosomal bands 6p12-p21.1. This analysis formally excluded this 3-cM region, documenting that the two traits are not allelic. In sum, a novel heart-hand syndrome involving left ventricular outflow and aortic arch as well as an ulnar ray derivative has been identified. Because the hand anomalies can be subtle, thorough evaluation is suggested for families inheriting these cardiac defects as a mendelian trait.

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